大学英语试卷二

大学英语试卷二（共8篇）

1.大学英语试卷二 篇一

写作答案

The Impact of Interest on People’s Success

As is known to all, the success of a person needs the right guidance and interest is undoubtedly the best teacher. Even Albert Einstein, the world-renowned physicist, said, “I have no special talents. I am only passionately curious.” So it is high time that people explore and cultivate their own interest.

Passionate curiosity can be developed in one’s childhood or in one’s sixties, but once it is ignited, it can change people’s way of study, work and living. On the one hand, interest makes one’s pursuit of knowledge successful and enjoyable. For instance, the pianist Langlang, who plays piano with great love, is awarded a lot of prizes at home and abroad. On the other hand, curiosity helps to resolve difficulties constantly. A worker with curiosity is more likely to dig into the essence of the problem and thus accomplish more creative tasks.

I would like to end up with the famous educator Herbert Spencer’s words which I can’t agree more, “If the interest and enthusiasm among us are cultivated smoothly in the first place, most people will become talents or geniuses.”

听力答案

短对话答案

1. C. Attend the concert.

2. D. None of the passengers were injured or killed.

3. A. An article about the election.

4. A. The restaurant was not up to the speaker’s expectations.

5. C. He has many things to deal with right now.

6. D. More students have to appear to make their voice heard.

7. B. The speakers like watching TV very much.

8. D. The woman will be able to attend the classes she wants.

长对话一

9. C) Export bikes to foreign markets.

10. B) The government has control over bicycle imports.

11. A) Extra costs might eat up their profits abroad.

12. C) Conduct a feasibility study.

长对话二

13. B) Anything that can be used to produce power.

14. D) Oil production will begin to decline worldwide by 2025.

15. B) Start developing alternative fuels.

阅读答案

选词填空答案

36. J) philosophy

37. I) mirrors

38. B) constrained

39. D) explore

40. L) sneaking

41. K) potential

42. O) violent

43. F) interacting

44. A) assess

45. N) undermines

2.大学英语试卷二 篇二

Directions:For this part,you are allowed 30 minutes to write a short essay entitled PayingKids for Chores?You should write at least 120 words according to the outline given below.

1.现在有不少家长付钱让孩子做家务

2.有人对此赞成,也有人表示反对

3.我的看法

Paying Kids for Chores?

PartⅡReading Comprehension (Skimming and Scanning)(15 minutes)

Directions:In this part,you will have 15 minutes to go over the passage quickly and answerthe questions.For questions 1-7,choose the best answer from the four choices marked A),B),C)and D).For questions 8-10,complete the sentences with the information given in the passage.

Universities Must Deal Better with Complaints

With student complaints at a record high,universities will have to raise their game once tu-ition fees rise.

Two universities that have broken official rules for dealing with student complaints are namedtoday in the independent adjudicator's(仲裁人的) annual report.The two,Southampton and Westminster,are the first to be exposed in this way—yet another sign of the new era in which universities are expected to be more accountable (负责的) to students who expect to be treated as customers.

The Office of the Independent Adjudicator (OIA),which reviews complaints when students haveexhausted their university's procedures,also reports a record rise in the number of cases.Last year the office received 1,341 complaints against universities in England and Wales,the highest number ever and an unprecedented(空前的) rise of one-third on the year before.

As the adjudicator himself,Rob Behrens,points out,1,341 complaints represents just 0.05%of higher education students,and 53%of those were not justified.But,he also observes,the proportion of justified and partly justified complaints has grown for the first time in several years.He predicts the increase in complaints will continue."It's to be expected where you have rising tuition fees,where students are being invited to behave like consumers and where the labour market is difficult so students will do what they can to ensure they qualify."

He says his decision to expose the universities of Southampton and Westminster is not"nam-ing and shaming,with all the associations of moral censure that term implies".He was,he explains,simply following OIA rules—something those two institutions failed to do.

Westminster fell short in its handling of two complaints.One was from a student who argueda disability hadn't been properly taken into account.The adjudicator agreed.The other student claimed that an exam question and its marking scheme had been unreasonable.In both cases the university broke the rules by failing to resolve the cases,as recommended,promptly and in full.

At Southampton University,four months after the OIA concluded that an undergraduate had ajustified complaint about their experience on a placement,the university continued to oppose the decision and was refusing compensation.

In a second case,the university also failed to comply with the adjudicator's decision.And ina third one,although the complaint turned out to be unjustified,for 10 months the university delayed the investigation by failing to provide evidence despite the adjudicator's repeated reminders.

At both universities,it was only after the adjudicator involved the vice-chancellors (大学副校长) that the complaints began to be resolved.

Behrens is pleased the relationships between his office and both universities are now muchmore positive."As the government places more emphasis on the student experience,complaints have an important role in safeguarding that,"he says."Universities must see complaints as feedback to become more professional."

Both Southampton and Westminster universities want to charge undergraduates annual fees of£9,000.There is an expectation,not only from ministers,but importantly from students and their families,too,that all universities wishing to increase charges will move to increase student satisfaction as well.

Before making an investment of£27,000,for example,each student will ask,"Is this good val-ue?Is the teaching good?Is this the best route to a successful career?"

Universities are being encouraged,some may say pressurised,to become more transparent andaccountable in a number of ways.

The government is urging all universities to publish a student charter,a sort of statement ofterms and conditions to remind students of their responsibilities and their rights.Universities are also expected to publish"key information sets"by September 2012.These will enable students to shop around by providing the same 17 pieces of information about each institution,including,for example,the proportion of"contact"time and group work,and the careers and starting salaries of previous graduates.

The OIA is already looking at creative ways to cope with both limited resources and likelyfurther rises in student complaints.Settling more disputes by phone is one option;helping universities to install an independent ombudsman (巡视员) on each campus—an idea borrowed from the Netherlands and the US—is another.

The question is,are UK universities well prepared for the new consumer culture where thedeal is if you pay more,you expect more,and if you feel you're not getting it,you'll complain?

The question is particularly pertinent for the universities of Southampton and Westminster onthe day they are exposed for dragging their feet with a legally established adjudicator.Both vicechancellors were unavailable for interview.

In a statement,Professor Debra Humphris,Southampton's pro-vice-chancellor,education,saidthe vast majority of the small number of student complaints are dealt with swiftly,described the dialogue with the OIA as"constructive and supportive"and said that an improved complaints procedure will be in place this autumn.

In a more defiant statement,Professor Geoffrey Petts,vice-chancellor at Westminster,points outthat the university is working with the OIA towards compliance with its recommendations:"The University of Westminster was disappointed to have been cited in the OIA report.The university has robust procedures for handling the very small number of formal complaints which it receives from stude nts.”

Aaron Porter,the president of the National Union of Students,has welcomed the new step ofnaming universities that don't fully co-operate with the adjudicator."In an environment where students are paying higher fees and will therefore raise expectations,they need to know which institutions stic.k to the rules."

He also makes this warning:"Faced with increasing competition to recruit students,many uni-versities are being tempted to make grander and grander claims.They need to improve their offer,but they need to be honest in what they promise."

The advice is echoed by Steve Smith,president of Universities UK and vice-chancellor of theUniversity of Exeter.He sees,in the adjudicator's annual report,a sector getting to grips with a new world where students are more demanding and will make sure universities correctly follow procedures."It is vital that institutions are honest and transparent about what students can expect from their courses.In an age of marketing,don't oversell.Any institution will have to make sure they do what they say.”

1.Southampton and Westminster's being named shows that______.

A) the independent adjudicator is quite impartial

B) the two universities have a very bad reputation

C) universities are expected to be more responsible

D) college students are treated with much respect now

2.What is said about last year's complaints against universities in England and Wales?

A) Few of them turned out to be completely justified.

B) They were much less than those on the year before

C) Most of the complaints were exposed in the report.

D) The number of the complaints reached a record high.

3.According to Rob Behrens,the increase in complaints is likely to continue as long as______.

A) we are living in a customer culture B) universities increase tuition fees

C) students have to pay their tuition fees D) the level of unemployment keeps rising

4.When a student complained about an exam question,the University of Westminster______.

A) deliberately delayed the investigation B) didn't deal with the complaint swiftly

C) modified the marking scheme promptly D) handled the case following official rules

5.Behrens believes that complaints play an important role in______.

A) safeguarding the student experience

B) protecting the interests of universities

C) enhancing customers'shopping experience

D) improving government employees'service

6.Students and their families expect that universities wanting more tuition fees will______.

A) offer more part-time jobs B) lower entrance requirements

C) increase student satisfaction D) invest more in teaching facilities

7.For the OIA,to resolve more complaints with limited resources,one option is to______.

A) urge universities to simplify their procedures

B) use the telephone to deal with the complaints

C) cooperate with officials from other countries

D) send an independent ombudsman to each school

8.According to Professor Debra Humphris,the University of Southampton will be ready to use______this autumn.

9.Aaron Porter warns that universities should not only______butalso be frank in their offer.

10.Steve Smith,president of Universities UK,understands that we have entered a new era wherestudents become more______.

PartⅢListening Comprehension (35 minutes)

Section A

Directions:In this section,you will hear 8 short conversations and 2 long conversations.Atthe end of each conversation,one or more questions will be asked about what was said.Both the conversation and the questions will be spoken only once.After each question there will be a pause.During the pause,you must read the four choices marked A),B),C) and D),and decide which is the best answer.

11.A) He fell ill on the jet plane.B) He has been working too hard.

C) He went to bed too late last night.D) He hasn't adapted to the new time yet.

12.A) The man doesn't have a strong enough will.

B) The man loves horror films.

C) The man will see the film anyway.

D) The man studied for the whole night last night.

13.A) Not to worry about the ticket.B) Buy a ticket at a higher price.

C) Book an air ticket in advance.D) Wait for others to cancel their booking.

14.A) The young man had some unusual problems.

B) The problem is common for young people.

C) It's not common for young men to leave home.

D) It was a problem for John when he left home.

15.A) The man will have no choices left.

B) The man had better go there quickly.

C) The man should go when he has spare time.

D) The books are a bit scratched and are of poor quality.

16.A) She can't afford the time for the trip.

B) She will manage to leave this month.

C) She has to change the time for the trip.

D) She hasn't decided where to go next month.

17.A) It is located near a large residential area.

B) It is open around-the-clock on weekends.

C) It is the same as other banks in any way.

D) It provides convenience and quality service.

18.A) He will go to see a doctor about his coughing.

B) He has had a heart attack because of smoking.

C) He is coughing because of too much smoking.

D) He has a serious lung disease and heart attack already.

Questions 19 to 22 are based on the conversation you have just heard.

19.A) Go to summer school.B) Take a vacation.

C) Stay at home.D) Earn some money.

20.A) They hired someone to stay in their home.

B) They left their pets with neighbors.

C) They rented their house to a student.

D) They asked their gardener to watch their home.

21.A) Walking the dog.B) Cutting the grass.

C) Watching the children.D) Feeding the fish.

22.A) They attend a house-sitter's party.

B) They check a house-sitter's references.

C) They interview a house-sitter's friends.

D) They look at a house-sitter's transcripts.

Questions 23 to 25 are based on the conversation you have just heard.

23.A) Writing reports for them.

B) Teaching them foreign languages.

C) Helping them deal with daily existence.

D) Introducing work for them.

24.A) They don't have support networks.

B) They cannot cope with the difficulties in their lives.

C) The woman is famous for helping others.

D) People from their nationality refuse to help them.

25.A) They were surprised at the flavors.

B) They could find food they know and love.

C) There was at least one Chinese restaurant in every China town.

D) Americans have different foods.

Section B

Directions:In this section,you will hear 3 short passages.At the end of each passage,youwill hear some questions.Both the passage and questions will be spoken only once.After you hear a question,you must choose the best answer from the four choicesmarked A),B),C) and D).Passage One

Questions 26 to 29 are based on the passage you have just heard.

26.A) To do some research.B) To support his family.

C) To pay for his college education.D) To help his partner expand business.

27.A) It stood at an unfavorable place.

B) It lowered the prices to promote sales.

C) It lacked control over the quality of sandwiches.

D) It made no profits due to poor management.

28.A) They had enough money to do it.

B) They had succeeded in their business.

C) They wanted to make others believe that they were successful.

D) They wished to meet the increasing demand of customers.

29.A) Learning by trial and error.B) Making friends with suppliers.

C) Finding a good partner.D) Opening chain stores.

Passage Two

Questions 30 to 32 are based on the passage you have just heard.

30.A) To exchange ideas.B) To prove their value.

C) To achieve success in life.D) To overcome their fear of silence.

31.A) About whatever they have prepared.B) About whatever they want to do.

C) About learning something new.D) About getting on well.

32.A) To explain why people keep talking.

B) To persuade people to stop making noises.

C) To encourage people to join in conversations.

D) To discuss why people like talking about weather.

Passage Three

Questions 33 to 35 are based on the passage you have just heard.

33.A) Bettering his way of life.

B) Improving his surroundings.

C) Modifying the face of the planet.

D) Altering the physical features of the earth.

34.A) When the ecological balance of the river is lost.

B) When people consume more fish than they used to.

C) When large numbers of algae,fish and birds are killed.

D) When the production of marine petroleum is increased.

35.A) Ecologists.B) Industrialists.

C) Businessmen.D) Environmentalists.

Section C

Directions:In this section,you will hear a passage three times.When the passage is read forthe first time,you should listen carefully for its general idea.When the passage is read for the second time,you are required to fill in the blanks numbered from 36 to 43 with the exact words you have just heard.For blanks numbered from 44 to 46 you are required to fill in the missing information.For these blanks,you can either use the exact words you have just heard or write down the main points in your own words.Finally,when the passage is read for the third time,you should check what you have written.

Today we are going to practice evaluating the main tool used when addressing groups—the (36)______.There are three main elements that combine to create either a positive or negative(37)______for listeners.They can (38)______in a voice that is pleasing to listen to and can be used effectively,or they can create a voice that doesn't hold the attention,or even worse causes an (39)______reaction.The three elements are volume,pitch and pace.

When talking about volume,keep in mind that a good speaker will adjust to the size of boththe room and the audience.Of course,with an (40)______device like a microphone,the speaker can use a (41)______tone.But speakers should not be (42)______on it.A good speaker can speak loudly without shouting.

The second element—pitch—is related to the highness and lowness of the sounds.High pitchesare for most people more difficult to listen to,so in general,the speaker should use the lower (43)______of the voice.(44)______.

The third element,pace—this is how fast or slow words and sounds are articulated—should al-so be varied.(45)______.Pauses ought to be used to signal transitions or create anticipation.It can be very effective when moving from one topic to another(46)______.

PartⅣReading Comprehension (Reading in Depth)(25 minutes)

Section A

Directions:In this section,there is a passage with ten blanks.You are required to select oneword for each blank from a list of choices given in a word bank following the passage.Read the passage through carefully before making your choices.Each choice in the bank is identified by a letter.You may not use any of the words in the bank more than once.

Questions 47 to 56 are based on the following passage.

Perhaps like most Americans you have some extra pounds to shed.You may even have tried afad(时尚) diet or two,but found yourself right back where you 47.The key to weight loss is regular 48 activity.And surprisingly,you don't have to give up eating or make the gym your second home to see long-term,49 effects.

Your body needs a certain amount of energy to maintain basic 50 such as breathing,blood circulation and digestion.The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate.Any time you are active,51 energy is required.It isobtained from glycogen(糖原) and fat stored in the blood,liver,and muscles.The key to losing weight is to draw on the fat rather than on the carbohydrate reserves.

Which of the two energy sources you use depends on the intensity and 52 of your activi-ty.The higher the intensity,the more your body will pull from the stored carbohydrates.The lower the intensity,the 53 your body will rely on fat as its fuel.

Aerobic exercise is most 54 for weight loss.When you perform aerobic activities you 55contract large muscle groups such as your legs and arms.Walking,running,rollerblading,swimming,dancing,and jumping jacks are all forms of aerobic activity.Surprisingly,if your aerobic activity is low to moderately intense and of long duration,you will burn more fat than if you had 56 in a short burst of high-intensity exercise.In short,a brisk 30-minute walk will burn fat while a 100-yard sprint will burn glycogen.

Section B

Directions:There are 2 passages in this section.Each passage is followed by some questionsor unfinished state me nts.For each of them there are four choices marked A),B),C) and D).You should decide on the best choice.

Passage One

Questions 57 to 61 are based on the following passage.

The warming of the Arctic is releasing a new wave of banned toxic chemicals that had beentrapped in the ice and cold water,scientists have discovered.

The researchers warn that the amount of the poisons stored in the polar region is unknownand their release could"undermine global efforts to reduce environmental and human exposure to them."

The chemicals leaking out as temperatures rise include DDT,lindane,chlordane,PCBs andHCBs.All of these persistent organic pollutants (Pops) are banned under the 2004 Stockholm Convention.

Pops can cause cancers and birth defects and take a very long time to degrade(降解),mean-ing they can be transported for long distances and accumulate over time.

Over past decades,the low temperatures in the Arctic trapped volatile(易挥发的) Pops in iceand cold water.But scientists in Canada and Norway have now discovered that global warming is freeing the Pops once again.

They examined measurements of Pops in the air between 1993 and 2009 at the Zeppelin re-search station in Svalbaard and Alert weather station in northern Canada.After allowing for the decline in global emissions of Pops,the team showed that the toxic chemicals are being remobilised by rising temperatures and the retreat of the sea ice,which exposes more water to the Sun.For example,air concentrations of PCBs and HCBs have shown a rising trend from about 2004 onwards.

Hayley Hung,a member of Environment Canada and of the team,said its work provided thefirst evidence of the releasing of Pops in the Arctic."But this is the beginning of a story,"she said."The next step is to find out how much is in the Arctic,how much will leak out and how quickly."With the exception of lindane,there was little existing knowledge of the scale of the Pops stored in high latitude(纬度) regions.

The fate of the frozen Pops depends on the speed of warming in the Arctic—it is currentlyheating up much more quickly than lower latitudes—as well as how the chemicals interact with snow and rain.Pops accumulate in fats and are therefore concentrated up the food chain,but Hung cautions that food chains themselves in the Arctic may be altered by climate change.

57.What have the researchers discovered in the Arctic?

A) The ice and cold water in the region contain banned toxic chemicals.

B) Poisons stored in the region are leaking out due to global warming.

C) The amount of toxic chemicals in the region could destroy all mankind.

D) The ecosystem in the region has been changed by rising temperatures.

58.What do we learn about Pops from the passage?

A) They pose a threat to marine life and humans.

B) They are substances that are easily degraded.

C) They can be found only in the polar region.

D) They will decrease in number if moving in the air.

59.By"the toxic chemicals are being remobilised"(Line 3,Para.6),the author means that the Pops______.

A) are taking in the form of ice or water

B) are becoming more and more poisonous

C) are able to move easily and quickly in the water

D) are no longer trapped in the ice and cold water

60.According to Hayley Hung,the scientists need to figure out______.

A) the harm the Pops will do to human beings

B) why the Pops have been trapped in the ice

C) the scale of the Pops stored in the Arctic

D) how to eliminate the banned toxic chemicals

61.What is said about the warming in the Arctic?

A) Human activities have sped it up.

B) It may change the food chains.

C) It is affected by the release of the Pops.D) It happened earlier than other regions.

Passage Two

Questions 62 to 66 are based on the following passage.

If you haven,t heard or seen anything about road rage in the last few months,you've proba-bly been avoiding the media.There have been countless stories about this new and scary phenomenon,considered a type of aggressive driving.If you drive,you have more than likely encountered aggressive driving.

While drunk driving remains a critical problem,the facts about aggressive driving are surely asdisturbing.For instance,according to the National Highway Traffic Safety Administration (NHTSA),41,907 people died on the highways last year.Of those fatalities,the agency estimates that about two-thirds were caused at least in part by aggressive driving behavior.

Why is this phenomenon occurring more than ever now,and why is it something that seemedalmost nonexistent a few short years ago?Experts have several theories,and all are probably partially correct.One suggestion is sheer overcrowding.In the last decade,the number of cars on the roads has increased by over 11%,and the number of miles driven has increased by 35%.Meanwhile,the number of new road miles has only increased by 1%.That means more cars in the same amount of space;and the problem is magnified in urban areas.

Also,people have less time and more things to do.With people working and trying to fit extrachores and activities into the day,stress levels have never been higher.Stress creates anxiety,which leads to short tempers.These factors,when combined in certain situations,can spell road rage.

You may think you are the last person who would drive aggressively,but you might be sur-prised.For instance,have you ever yelled out loud at a slower driver,honked long and hard at another car,or sped up to keep another driver from passing?If you recognize yourself in any of these situations,watch out!

Whether you are getting angry at other drivers or if another driver is visibly upset with you,there are things you can do to avoid major confrontations.If you are susceptible (受影响的) to road rage,the key is to discharge your emotion in a healthy way.If you are the target of another driver's rage,do everything possible to get away from the other driver safely,including avoiding eye contact and getting out of their way.

62.What do we learn from the first paragraph?

A) The media coined the term"Road Rage"only a few months ago

.B) People have been raged by media reports and want to avoid them.

C) People not interested in the media know little about recent happenings.

D) Road rage has received much media coverage in the last few months.

63.According to NHTSA,last year on the highways______.

A) approximately two thirds of drivers were killed by road rage

B) road rage remained the No.1 killer and took 41,907 people's lives

C) more people were killed by aggressive driving than by drunk driving

D) drunk driving was a problem more serious than aggressive driving

64.Which of the following is not mentioned as a cause of aggressive driving?

A) Drivers'stress and anxiety.B) Rush hour traffic.

C) Increasing number of cars.D) Overcrowded roads.

65.According to the passage,aggressive driving is characterized by______.

A) driving at full speed B) yelling at another driver

C) talking while driving D) sounding the horn when passing

66.The last paragraph is intended to______.

A) tell people how to cope with road rage

B) inform people how aggressive drivers could be

C) tell people how to control themselves when angry

D) warn people against eye contact with another driver

PartⅤCloze (15 minutes)

Directions:There are 20 blanks in the following passage.For each blank there are fourchoices marked A),B),C) and D) on the right side of the paper.You should choose the ONE that best fits into the passage.

Are organically grown foods the best food choices?The advantages claimed for such foods 67 conventionallygrown food products are now being 68.Advocates oforganic foods—a term whose meaning 69 greatly—frequently proclaim that such products are safer andmore nutritious than others.

The growing interest of consumers in the safetyand nutritional quality of the 70 North American dietis a welcome development.71,much of this interest has been sparked by sweeping claims that the foodsupply is unsafe or inadequate in meeting nutritional72.Although most of these claims are not supported by scientific 73,the preponderance (优势) ofwritten material advancing such claims makes it difficult for the general public to distinguish fact74 fiction.As a result,claims that eating a diet consisting entirely of organically grown foods75 or cures disease or provides other benefitsto health have become 76 advertised and form the basis for folklore (民俗).

77 daily the public is surrounded by claimsfor"no aging"diets,new vitamins,and other wonder foods.Many an unfounded report 78 that naturalvitamins are superior 79 synthetic ones,that fertilizedeggs excel unfertilized eggs nutritionally,and the 80.One thing that most organically grown foodproducts seem to have in 81 is that they cost more than conventionally grown foods.But in many82 consumers are misled if they believe thatorganic foods can 83 health and provide better nutritional quality than conventionally grown foods.84 there is a real cause for concern ifconsumers,85 those with limited incomes,distrust the regular food supply and buy merely expensive organic foods 86.

PartⅥTranslation (5 minutes)

Directions:Complete the sentences by translating into English the Chinese given in brackets.

87.______(冒着破产的危险),he invested all his money in this facto-ry.

88.Many people______(理所当然地认为)marriage is the goal of every young woman's inmost thought.

89.It's time______(采取一些有效措施)to solve the pollution prob-lem all over the county.

90.John can not afford a car,______(更不用说房子了).

91.It______(我想起来)he might be interested in the problem we had disucssed.

(本刊资料)

《大学英语四级模拟试卷》参考答案及听力文字材料:

PartⅠ

Possible version 1:

Paying Kids for Chores?

A rising proportion of parents pay their children to do chores around the house nowadays.Forexample,some parents will give their kids allowances if they clean the room,do laundry,set the table,or prepare simple food for the family.

People differ on whether parents should pay their kids for doing housework.Supporters saytying kids'allowances to housework is a good way to teach kids accountability and responsibility.It also helps children learn about money and how it works.But critics of this approach say children should do routine housework for free.The reason is simple:chores are part of a family,and everyone does chores.

Personally,I don't think parents should adopt the pay-for-work view.Paying kids to help outsends the wrong message:they are entitled to freely have everything parents provide for them while the contributions they make to the family have to be paid for.It risks creating teenagers who would worship money and who are likely to drive a hard bargain just to take out the garbage.

Possible version 2:

Paying Kids for Chores?

To foster a love for work and help them become accustomed to it,many Chinese,especiallythose in big cities,pay their only child to do chores at home.Usually the amount of money given to the child depends on the child's age,the family's income and the child's expenses.

People's opinions vary towards this phenomenon.Some people think it's a good idea for par-ents to pay kids to do housework.It motivates children to do more jobs around the house,as paying chores shows them that they have to work in order to get allowances.Others,however,argue that it's improper for parents to take this approach,since paying them makes them lazy.They say many children now refuse to do anything unless there is some kind of compensation.

I'm in the camp that parents should pay their children in return for work done around thehouse.On the one hand,it teaches children that they should work for what they want in life.Onthe other hand,it provides solid lessons and opportunities related to money management.

PartⅡ1.C) 2.D) 3.B) 4.B) 5.A) 6.C) 7.B) 8.an improved complaints procedure9.improve their offer 10.demanding

PartⅢ11.D) 12.A) 13.D) 14.B) 15.B) 16.C) 17.D) 18.C) 19.D) 20.A)21.C) 22.B) 23.C) 24.B) 25.B) 26.C) 27.D) 28.C) 29.A) 30.D) 31.B) 32.A) 33.A) 34.C) 35.B) 36.voice 37.experience 38.result 39.adverse 40.amplifying41.natural 42.dependent 43.registers 44.During a presentation,it's important to vary pitch to some extent in order to maintain interest 45.A slower pace can be used to emphasize important points—note that the time spent not speaking can be very meaningful too 46.because a pause gives the listener time to think about what was just said or even predict what might come next

PartⅣ47.K) 48.F) 49.A) 50.H) 51.B) 52.C) 53.E) 54.D) 55.L) 56.I) 57.B) 58.A) 59.D) 60.C) 61.B) 62.D) 63.C) 64.B) 65.B) 66.A)

PartⅤ67.D) 68.B) 69.A) 70.B) 71.C) 72.A) 73.C) 74.B) 75.A) 76.C) 77.D) 78.B) 79.C) 80.D) 81.A) 82.D) 83.C) 84.B) 85.A) 86.D)

PartⅥ87.At the risk of going bankrupt/Running the risk of going bankrupt

88.take it for granted that

89.(that) some effective measures were taken

90.let alone/not to mention a house

91.occurs to me that

附:听力录音文字材料

Short Conversations

11.W:You look very sleepy and tired.What's wrong,John?Did you stay up very late last night?

M:Oh,no.Well,you know,I've been here for only a few days.In my home country,it isstill late at night now.I am suffering from jet lag.It's so hard to overcome this.

Q:What does the man mean?

12.M:Hey,I've rented a horror film from the shop near the college.Could you come over andenjoy it with me?

W:You told me last night you're going to study this morning.Your plans are always good enough,yet you rarely carry them out.

Q:What can we infer from the conversation?

13.M:I can't believe I can't get a plane ticket for the summer holiday.I mean,it's only March.

W:Well,you know I wouldn't worry about it too much.People cancel their reservations allthe time.

Q:What does the woman suggest the man do?

14.W:John's room was in a mess.It seemed that he had never cleaned it.

M:This problem is not uncommon for a young man from home.

Q:What does the man mean?

15.M:I think I'll get my second-hand books at the Student Union this year.So many of the books we are using are the same print.

W:I hope you're not planning to take your time going there.They are usually snapped up withinthe first week.

Q:What does the woman mean?

16.M:You're going to make a trip to San Francisco,aren't you?

W:Yes.But I haven't got the plane ticket yet.I'm thinking of postponing the trip to next monthsince this is the busiest month for the airlines.

Q:What do we know about the woman from this conversation?

17.W:The bank near the supermarket opens on Sundays,quite different from the other banks in the same street.

M:On Sundays people have time to go there.It is really convenient for people.Besides,theyoffer quite satisfactory service.

Q:What does the man think of the bank?

18.W:Did you go to see the doctor about your cough?

M:The doctor said if I keep smoking it will increase my chance of having a heart attack or,lungdisease.And I am thinking about quitting smoking as the problems seem to be quite serious.

Q:What do we know about the man?

Long Conversation One

M:I really don't know what to do this summer.I can't afford to just sit around,and there don't seem to be any jobs available.

W:Why don't you try house-sitting?Last summer my friend Margaret house-sat for the Dodds when they went away on vacation.Mr.Dodd hired Margaret to stay in their house because he didn't want it left empty.

M:You mean the Dodds paid Margaret just to live in their house?

W:It wasn't that easy.She had to mow the lawn and water the house plants.And when Eric housesat for Dr.Cohen,he had to take care of her pets.

M:House-sitting sounds like a good job.I guess it's a little like baby-sitting—except you're taking care of a house instead of children.

W:The Student Employment Office still has a few jobs posted.

M:Do I just have to fill out an application?

W:Margaret and Eric had to interview with the home owners and provide three references each.

M:That seems like a lot of trouble for a summer job.

W:Well,the home owners want some guarantee that they can trust the house-sitter.You know,they want to make sure you're not the type who'll throw wild parties in their house,or move a group of friends in with you.

M:House-sitters who do that sort of thing probably aren't paid then.

W:Usually they're paid anyway just because the home owners don't want to make a fuss.But if the home owner reported it,then the house-sitter wouldn't be able to get another job.So why don't you apply?

M:Yeah,I think I will.

Questions 19 to 22 are based on the conversation you have just heard.

Q19.What does the man want to do this summer?

Q20.What did the Dodds do when they went away last summer?

Q21.What is one responsibility the house-sitter probably wouldn't have?

Q22.How do home owners determine the reliability of a house-sitter?

Long Conversation Two

M:So,you must have a lot of contact with overseas students in your work helping people coping with daily existence.

W:Sometimes.You know the life of a social worker is not all wonderful and working to help people in their daily life.I have to spend a lot of time pushing paper,and writing reports too.But when I do get out,yeah,I see a lot of foreigners.And sometimes they come in because life in A merica has just beaten them down and they can't cope financially or emotionally.

M:Really?I would think that they had a good support network in place,especially university students.

W:They do have a network,and a variety of support groups,but these can't meet all of the students'needs.They can't help with paying bills,dealing with American neighbors and customs,fitting in,getting a driver's license,etc.They try,but very often the student has to figure out a lot of this stuff by himself.And if he or she is shy,they don't have the courage to ask other people,even other people from their nationality.people,

M:So what are some of the things that overseas students struggle with?

W:This might interest you,but they struggle with the food,especially Chinese.You know,they come here knowing that Americans love Chinese food so much.They think that there will be good restaurants with Chinese food that they love.But they get here and they are extremely surprised.Americans enjoy totally different flavors.

M:So what do they do?

W:If they're brave and curious,they look around and test all the restaurants.There is usually at least one restaurant in every town that has almost quality food.

Questions 23 to 25 are based on the conversation you have just heard.

Q23.In which aspect does the woman help people in her work?

Q24.Why do people come to the woman for help?

Q25.How did Chinese students expect the American-made Chinese food before they came to the US?

Passage One

It was the summer of 1965.DeLuca,then 17,visited Peter Buck,a family friend.Buck askedDeLuca about his plans for the future."I'm going to college,but I need a way to pay for it,"DeLuca recalls saying."Buck said,you should open a sandwich shop."

That afternoon,they agreed to be partners.And they set a goal:to open 32 stores in tenyears.After doing some research,Buck wrote a check for$1,000.DeLuca rented a storefront in Connecticut,and when they couldn't cover their start-up costs,Buck kicked in another$1,000.

But business didn't go smoothly as they expected.DeLuca says,"After six months,we weredoing poorly,but we didn't know how badly,because we didn't have any financial controls."All he and Buck knew was that their sales were lower than their costs.

DeLuca was managing the store and going to the University of Bridgeport at the same time.Buck was working at his day job as a nuclear physicist in New York.They'd meet Monday evenings and brainstorm ideas for keeping the business running."We convinced ourselves to open a second store.We figured we could tell the public,'We are so successful,we are opening a second store.'"And they did—in the spring of 1966.Still,it was a lot of learning by trial and error.

But the partners'learn-as-you-go approach turned out to be their greatest strength.Every Fri-day,DeLuca would drive around and hand-deliver the checks to pay their suppliers."It probably took me two and a half hours and it wasn't necessary,but as a result,the suppliers got to know me very well,and the personal relationships established really helped out,"DeLuca says.

And having a goal was also important."There are so many problems that can get you down.You just have to keep working toward your goal,"DeLuca adds.DeLuca ended up founding Subway Sandwich,the multimillion-dollar restaurant chain.

Questions 26 to 29 are based on the passage you have just heard.

Q26.What was DeLuca's purpose in opening the first sandwich shop?

Q27.What can we learn about DeLuca and Buck's first shop?

Q28.Why did DeLuca and Buck decide to open a second store?

Q29.What contributes most to their success according to the speaker?

Passage Two

Silence is unnatural to man.He begins life with a cry and ends it in stillness.In between hedoes all he can to make a noise in the world,and he fears silence more than anything else.Even his conversation is an attempt to prevent a fearful silence.If he is introduced to another person,and a number of pauses occur in the conversation,he regards himself as a failure.He knows that ninety-nine percent of human conversation means no more than the buzzing of a fly,but he is anxious to join in the buzz and to prove that he is a man and not a waxwork figure.

The aim of conversation is for the most part,to communicate ideas;it is to keep up thebuzzing sound.There are,it must be admitted,different qualities of buzz;there is even a buzz that is as annoying as the continuous noise made by a mosquito.But at a dinner party one would rather be a mosquito than a quiet person.Most buzzing,fortunately,is pleasant to the ear,and some of it is pleasant even to the mind.He would be a foolish man if he waited until he had a wise thought to take part in the buzzing with his neighbors.

Those who hate to pick up the weather as a conversational opening seem to me not to knowthe reason why human beings wish to talk.Very few human beings join in a conversation in the hope of learning anything new.Some of them are content if they are merely allowed to go on making a noise into other people's ears.They have nothing to tell them except that they have seen two or three new plays or that they had food in a Swiss hotel.At the end of an evening,during which they have said nothing meaningful for a long time,they just prove themselves to be successful conversationalists.

Questions 30 to 32 are based on the passage you have just heard.

Q30.What is people's purpose in making conversation according to the speaker?

Q31.What do people usually talk about to their neighbors according to the passage?

Q32.What is the speaker's purpose in giving this speech?

Passage Three

Throughout history man has changed his physical environment in order to improve his way oflife.With the tools of technology he has altered many physical features of the earth.He has transformed wood lands into farmland,and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power.Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways.

However,man,s changes to the physical environment have not always had beneficial results.Today,pollution of the air and water is an increasing danger to the health of the planet.Each day thousands of tons of gases come out of the exhausts of motor vehicles;smoke from factories pollutes the air of industrialized areas and the surrounding areas of countryside.The air in cities is becoming increasingly unhealthy.

The pollution of water is equally harmful.In the sea,pollution from oil is increasing and killingenormous numbers of algae (a very simple plant without stems or leaves that grows in or near water),fish and birds.The whole ecological balance of the sea is being changed.The same problem exists in rivers.Industrial wastes have already made many rivers lifeless.

Conservationists believe that it is now necessary for man to limit the growth of technology inorder to survive on earth.

Questions 33 to 35 are based on the passage you have just heard.

Q33.What is the purpose of man changing his physical environment?

Q34.When is the ecological balance of the sea lost?

Q35.Who would most probably disagree with conservationists?

Compound Dictation

Today we are going to practice evaluating the main tool used when addressing groups—thevoice.There are three main elements that combine to create either a positive or negative experience for listeners.They can result in a voice that is pleasing to listen to and can be used effectively,or they can create a voice that doesn't hold the attention,or even worse causes an adverse reaction.The three elements are volume,pitch and pace.

When talking about volume,keep in mind that a good speaker will adjust to the size of boththe room and the audience.Of course,with an amplifying device like a microphone,the speaker can use a natural tone.But speakers should not be dependent on it.A good speaker can speak loudly without shouting.

The second element—pitch—is related to the highness and lowness of the sounds.High pitchesare for most people more difficult to listen to,so in general,the speaker should use the lower registers of the voice.During a presentation,it's important to vary pitch to some extent in order to maintain interest.

3.期末考试测试卷（二） 篇三

1.已知R为实数集，M={x|x2-2x<0}，N={x|x≥1}，则M∩（CRN）=    .

2.命题：“x∈（0，+∞），x2+x+1>0”的否定是    .

3.已知z=（a-i）（1+i）（a∈R，i为虚数单位），若复数z在复平面内对应的点在实轴上，则a=   .

4.设不等式组0≤x≤2，

0≤y≤2，表示平面区域为D，在区域D内随机取一个点，则此点到坐标原点的距离大于2的概率是    .

5.阅读右图所示的程序框图，运行相应的程序，输出的s值等于    .

6.椭圆x2a2+y2b2=1（a>b>0）的右焦点为F1，右准线为l1，若过点F1且垂直于x轴的弦的弦长等于点F1到l1的距离，则椭圆的离心率是    .

7.已知正方形ABCD的边长为1，点E是AB边上的动点，则DE·DC的最大值为    .

8.设a，b∈R，且a≠2，若定义在区间（-b，b）内的函数f（x）=lg1+ax1+2x是奇函数，则a+b的取值范围是   .

9.巳知函数f（x）=cosx（x∈（0，2π））有两个不同的零点x1，x2，且方程f（x）=m有两个不同的实根x3，x4.若把这四个数按从小到大排列构成等差数列，则实数m的值为    .

10.关于x的不等式x2+25+|x3-5x2|≥ax在[1，12]上恒成立，则实数a的取值范围是    .

11.已知正数x，y满足（1+x）（1+2y）=2，则4xy+1xy的最小值是    .

12.已知函数f（x）=x4+ax3+2x2+b，其中a，b∈R.若函数f（x）仅在x=0处有极值，则a的取值范围是    .

13.已知a，b，c（a<b<c）成等差数列，将其中的两个数交换，得到的三个数依次成等比数列，则a2+c22b2的值为    .

14.如图，用一块形状为半椭圆x2+y24=1（y≥0）的铁皮截取一个以短轴BC为底的等腰梯形ABCD，记所得等腰梯形ABCD的面积为S，则1S的最小值是    .

二、解答题（本大题共6小题，共计90分）

15.（本小题满分14分）

在△ABC中，A，B，C为三个内角a，b，c为三条边，π3<C<π2，且ba-b=sin2CsinA-sin2C.

（1）判断△ABC的形状;

（2）若|BA+BC|=2，求BA·BC的取值范围.

16.（本小题满分14分）

如图，直三棱柱ABCA1B1C1中，D、E分别是棱BC、AB的中点，点F在棱CC1上，已知AB=AC，AA1=3，BC=CF=2.

（1）求证：C1E∥平面ADF;

（2）设点M在棱BB1上，当BM为何值时，平面CAM⊥平面ADF？

17.（本小题满分15分）

已知椭圆C：x2a2+y2b2=1（a>b>0）的离心率为12，且经过点P（1，32）.

（1）求椭圆C的方程;

（2）设F是椭圆C的右焦点，M为椭圆上一点，以M为圆心，MF为半径作圆M.问点M满足什么条件时，圆M与y轴有两个交点？

（3）设圆M与y轴交于D、E两点，求点D、E距离的最大值.

18.（本小题满分15分）

如图，AB是沿太湖南北方向道路，P为太湖中观光岛屿，Q为停车场，PQ=5.2km.某旅游团游览完岛屿后，乘游船回停车场Q，已知游船以13km/h的速度沿方位角θ的方向行驶，sinθ=513.游船离开观光岛屿3分钟后，因事耽搁没有来得及登上游船的游客甲为了及时赶到停车地点Q与旅游团会合，立即决定租用小船先到达湖滨大道M处，然后乘出租汽车到点Q（设游客甲到达湖滨大道后能立即乘到出租车）.假设游客甲乘小船行驶的方位角是α，出租汽车的速度为66km/h.

（1）设sinα=45，问小船的速度为多少km/h时，游客甲才能和游船同时到达点Q;

（2）设小船速度为10km/h，请你替该游客设计小船行驶的方位角α，当角α余弦值的大小是多少时，游客甲能按计划以最短时间到达Q.

19.（本小题满分16分）

已知各项均为正数的等差数列{an}的公差d不等于0，设a1，a3，ak是公比为q的等比数列{bn}的前三项，

（1）若k=7，a1=2

（i）求数列{anbn}的前n项和Tn;

（ii）将数列{an}和{bn}的相同的项去掉，剩下的项依次构成新的数列{cn}，设其前n项和为Sn，求S2n-n-1-22n-1+3·2n-1（n≥2，n∈N*）的值;

（2）若存在m>k，m∈N*使得a1，a3，ak，am成等比数列，求证k为奇数.

20.（本小题满分16分）

已知函数f（x）=-x3+x2+b，g（x）=alnx.

（1）若f（x）在x∈[-12，1）上的最大值为38，求实数b的值;

（2）若对任意x∈[1，e]，都有g（x）≥-x2+（a+2）x恒成立，求实数a的取值范围;

（3）在（1）的条件下，设F（x）=f（x），x<1

g（x），x≥1，对任意给定的正实数a，曲线y=F（x）上是否存在两点P，Q，使得△POQ是以O为直角顶点的直角三角形（O为坐标原点），且此三角形斜边中点在y轴上？请说明理由.

附加题

21.[选做题] 在A、B、C、D四小题中只能选做2题，每小题10分，共计20分

A.选修41：（几何证明选讲）

如图，从圆O外一点P作圆O的两条切线，切点分别为A，B，AB与OP交于点M，设CD为过点M且不过圆心O的一条弦，

求证：O、C、P、D四点共圆.

B.选修42：（矩阵与变换）

已知二阶矩阵M有特征值λ=3及对应的一个特征向量e1=1

1，并且矩阵M对应的变换将点（-1，2）变换成（9，15），求矩阵M.

C.选修44：（坐标系与参数方程）

在极坐标系中，曲线C的极坐标方程为ρ=22sin（θ-π4），以极点为原点，极轴为x轴的正半轴建立平面直角坐标系，直线l的参数方程为

x=1+45t

y=-1-35t（t为参数），求直线l被曲线C所截得的弦长.

D.选修45（不等式选讲）

已知实数x，y，z满足x+y+z=2，求2x2+3y2+z2的最小值;

[必做题] 第22题、第23题，每小题10分，共计20分

22.袋中装着标有数字1，2，3，4的卡片各1张，甲从袋中任取2张卡片（每张卡片被取出的可能性都相等），并记下卡面数字和为X，然后把卡片放回，叫做一次操作.

（1）求在一次操作中随机变量X的概率分布和数学期望E（X）;

（2）甲进行四次操作，求至少有两次X不大于E（X）的概率.

23.（本小题满分10分）

对一个边长互不相等的凸n（n≥3）边形的边染色，每条边可以染红、黄、蓝三种颜色中的一种，但是不允许相邻的边有相同的颜色.所有不同的染色方法记为P（n）.

（1）求P（3），P（4），P（5）;

（2）求P（n）.

参考答案

一、填空题

1. {x|0<x<1}

2. x∈（0，+∞），x2+x+1≤0

3. 1

4. 4-π4

5. -3

6. 12

7. 1

8. （-2，-32]

9. -32

10. （-∞，10]

11. 12

12. [-83，83]

13. 10

14. 239

二、解答题

15.（1）解：由ba-b=sin2CsinA-sin2C及正弦定理有：sinB=sin2C，

∴B=2C或B+2C=π，若B=2C，且π3<C<π2，∴23π<B<π，B+C>π（舍）;∴B+2C=π，则A=C，∴△ABC为等腰三角形.

（2）∵|BA+BC|=2，∴a2+c2+2ac·cosB=4，∴cosB=2-a2a2（∵a=c），而cosB=-cos2C，∴12<cosB<1，∴1<a2<43，∴BA·BC=accosB=a2cosB=2-a2∈（23，1）.

16.解：（1）连接CE交AD于O，连接OF.

因为CE，AD为△ABC中线，

所以O为△ABC的重心，CFCC1=COCE=23.

从而OF∥C1E.

OF面ADF，C1E平面ADF，

所以C1E∥平面ADF.

（2）当BM=1时，平面CAM⊥平面ADF.

在直三棱柱ABCA1B1C1中，

由于B1B⊥平面ABC，BB1平面B1BCC1，所以平面B1BCC1⊥平面ABC.

由于AB=AC，D是BC中点，所以AD⊥BC.又平面B1BCC1∩平面ABC=BC，

所以AD⊥平面B1BCC1.

而CM平面B1BCC1，于是AD⊥CM.

因为BM=CD=1，BC=CF=2，所以Rt△CBM≌Rt△FCD，所以CM⊥DF.

DF与AD相交，所以CM⊥平面ADF.

CM平面CAM，所以平面CAM⊥平面ADF.

当BM=1时，平面CAM⊥平面ADF.

17.解：（1）∵椭圆x2a2+y2b2=1（a>b>0）的离心率为12，且经过点P（1，32），

∴a2-b2a=12

1a2+94b2=1，即3a2-4b2=0

1a2+94b2=1，

解得a2=4

b2=3，

∴椭圆C的方程为x24+y23=1.

（2）易求得F（1，0）.设M（x0，y0），则x204+y203=1，

圆M的方程为（x-x0）2+（y-y0）2=（1-x0）2+y02，

令x=0，化简得y2-2y0y+2x0-1=0，Δ=4y20-4（2x0-1）>0……①.

将y20=3（1-x204）代入①，得3x20+8x0-16<0，解出-4

又∵-2≤x0≤2，∴-2≤x0<43.

（3）设D（0，y1），E（0，y2），其中y1

DE=y2-y1=4y20-4（2x0-1）

=-3x20-8x0+16=-3（x0+43）2+643，

当x0=-43时，DE的最大值为833.

18.解：（1）如图，作PN⊥AB，N为垂足.

sinθ=513，sinα=45，

在Rt△PNQ中，

PN=PQsinθ=5.2×513=2（km），

QN=PQcosθ=5.2×1213=4.8（km）.

在Rt△PNM中，

MN=PNtanα=243=1.5（km）.

设游船从P到Q所用时间为t1h，游客甲从P经M到Q所用时间为t2h，小船的速度为v1km/h，则

t1=PQ13=26513=25（h），

t2=PMv1+MQ66=2.5v1+3.366=52v1+120（h）.

由已知得：t2+120=t1，52v1+120+120=25，∴v1=253.

∴小船的速度为253km/h时，游客甲才能和游船同时到达Q.

（2）在Rt△PMN中，

PM=PNsinα=2sinα（km），

MN=PNtanα=2cosαsinα（km）.

∴QM=QN-MN=4.8-2cosαsinα（km）.

∴t=PM10+QM66=15sinα+455-cosα33sinα=1165×33-5cosαsinα+455.

∵t′=1165×5sin2α-（33-5cosα）cosαsin2α

=5-33cosα165sin2α，

∴令t′=0得：cosα=533.

当cosα<533时，t′>0;当cosα>533时，t′<0.

∵cosα在α∈（0，π2）上是减函数，

∴当方位角α满足cosα=533时，t最小，即游客甲能按计划以最短时间到达Q.

19.（1）因为k=7，所以a1，a3，a7成等比数列，又{an}是公差d≠0的等差数列，

所以（a1+2d）2=a1（a1+6d），整理得a1=2d，又a1=2，所以d=1，

b1=a1=2，q=b2b1=a3a1=a1+2da1=2，

所以an=a1+（n-1）d=n+1，bn=b1×qn-1=2n，

①用错位相减法或其它方法可求得{anbn}的前n项和为Tn=n×2n+1;

②因为新的数列{cn}的前2n-n-1项和为数列{an}的前2n-1项的和减去数列{bn}前n项的和，

所以S2n-n-1=（2n-1）（2+2n）2-2（2n-1）2-1=（2n-1）（2n-1-1）.

所以S2n-n-1-22n-1+3·2n-1=1（n≥2，n∈N*）.

（2）由（a1+2d）2=a1（a1+（k-1））d，整理得4d2=a1d（k-5），

因为d≠0，所以d=a1（k-5）4，所以q=a3a1=a1+2da1=k-32.

因为存在m>k，m∈N*使得a1，a3，ak，am成等比数列，

所以am=a1q3=a1（k-32）3，

又在正项等差数列{an}中，am=a1+（m-1）d=a1+a1（m-1）（k-5）4，

所以a1+a1（m-1）（k-5）4=a1（k-32）3，又因为a1>0，

所以有2[4+（m-1）（k-5）]=（k-3）3，

因为2[4+（m-1）（k-5）]是偶数，所以（k-3）3也是偶数，

即k-3为偶数，所以k为奇数.

20.解：（1）由f（x）=-x3+x2+b，得f′（x）=-3x2+2x=-x（3x-2），

令f′（x）=0，得x=0或23.

列表如下：

x-12（-12，0）0（0，23）23（23，1）

f′（x）-0+0-

f（x）f（-12）递减极小值递增极大值递减

由f（-12）=38+b，f（23）=427+b，∴f（-12）>f（23），即最大值为f（-12）=38+b=38，∴b=0.

（2）由g（x）≥-x2+（a+2）x，得（x-lnx）a≤x2-2x.

∵x∈[1，e]，∴lnx≤1≤x，且等号不能同时取，∴lnx<x，即x-lnx>0，

∴a≤x2-2xx-lnx恒成立，即a≤（x2-2xx-lnx）min.

令t（x）=x2-2xx-lnx，x∈[1，e]），求导得，

t′（x）=（x-1）（x+2-2lnx）（x-lnx）2，

当x∈[1，e]时，x-1≥0，lnx≤1，x+2-2lnx>0，从而t′（x）≥0，

∴t（x）在[1，e]上为增函数，

∴tmin（x）=t（1）=-1，∴a≤-1.

（3）由条件，F（x）=-x3+x2，x<1

alnx，x≥1，

假设曲线y=F（x）上存在两点P，Q满足题意，则P，Q只能在y轴两侧，

不妨设P（t，F（t））（t>0），则Q（-t，t3+t2），且t≠1.

∵△POQ是以O（O为坐标原点）为直角顶点的直角三角形，

∴OP·OQ=0，∴-t2+F（t）（t3+t2）=0…（*），

是否存在P，Q等价于方程（*）在t>0且t≠1时是否有解.

①若0

此方程无解;

②若t>1时，（*）方程为-t2+alnt·（t3+t2）=0，即1a=（t+1）lnt，

设h（t）=（t+1）lnt（t>1），则h′（t）=lnt+1t+1，

显然，当t>1时，h′（t）>0，即h（t）在（1，+∞）上为增函数，

∴h（t）的值域为（h（1），+∞），即为（0，+∞），

∴当a>0时，方程（*）总有解.

∴对任意给定的正实数a，曲线y=F（x）上总存在两点P，Q，使得△POQ是以O（O为坐标原点）为直角顶点的直角三角形，且此三角形斜边中点在y轴上.

附加题

21.A.选修41：（几何证明选讲）

证明：因为PA，PB为圆O的两条切线，所以OP垂直平分弦AB，

在Rt△OAP中，OM·MP=AM2，

在圆O中，AM·BM=CM·DM，

所以，OM·MP=CM·DM，

又弦CD不过圆心O，所以O，C，P，D四点共圆.

B.选修42：（矩阵与变换）

设M=ab

cd，则ab

cd1

1=31

1=3

3，故a+b=3，

c+d=3.

ab

cd-1

2=9

15，故-a+2b=9，

-c+2d=15.

联立以上两方程组解得a=-1，b=4，c=-3，d=6，故M=-14

-36.

C.选修44：（坐标系与参数方程）

解：将方程ρ=22sin（θ-π4），x=1+45t

y=-1-35t分别化为普通方程：

x2+y2+2x-2y=0，3x+4y+1=0，

由曲线C的圆心为C（-1，1），半径为2，所以圆心C到直线l的距离为25，

故所求弦长为22-（25）2=2465.

D.选修45（不等式选讲）

解：由柯西不等式可知：（x+y+z）2≤[（2x）2+（3y）2+z2]·[（12）2+（13）2+12]

故2x2+3y2+z2≥2411，当且仅当2x12=3y13=z1，即：x=611，y=411，z=1211时，

2x2+3y2+z2取得最小值为2411.

22.解：（1）由题设知，X可能的取值为：3，4，5，6，7.

随机变量X的概率分布为

X34567

P1616131616

因此X的数学期望E（X）=（3+4+6+7）×16+5×13=5.

（2）记“一次操作所计分数X不大于E（X）”的事件记为C，则

P（C）=P（“X=3”或“X=4”或“X=5”）=16+16+13=23.

设四次操作中事件C发生次数为Y，则Y～B（4，23），

则所求事件的概率为P（Y≥2）=1-C14×23×（13）3-C04×（13）4=89.

23.解：（1）P（3）=6，P（4）=18，P（5）=30.

（2）设不同的染色法有pn种.易知.

当n≥4时，首先，对于边a1，有3种不同的染法，由于边a2的颜色与边a1的颜色不同，所以，对边a2有2种不同的染法，类似地，对边a3，…，边an-1均有2种染法.对于边an，用与边an-1不同的2种颜色染色，但是，这样也包括了它与边a1颜色相同的情况，而边a1与边an颜色相同的不同染色方法数就是凸n-1边形的不同染色方法数的种数pn-1，于是可得

pn=3×2n-1-pn-1，pn-2n=-（pn-1-2n-1）.

于是pn-2n=（-1）n-3（p3-23）=（-1）n-2·2，

pn=2n+（-1）n·2，n≥3.

4.4月英语二专家预测试卷一 篇四

PART ONE

Ⅰ.Vocabulary and Structure (10 points,1 point for each item)

从下列各句四个选项中选出一个最佳答案。

1.Not until quite recently that language was closely related to culture.

A.I realized B.I did realize

C.had I realized D.did I realize

2.He has been widely exposed the public on television.

A.on B.in C.for D.to

3. The quality of life, especially as by the individual, varies with cultures.

A.seen B.seeing C.to see D.to be seen

4.In the United States, eggs are sold the dozen.

A.for B.with C.by D.in

5. It is just as foolish to say that one should never drink orange juice and milk together it is to say that one should never drink water and beer together.

A.when B.as C.while D.since

6.When you hear the tape, it will profound questions about what is happening in our world with juvenile and our society.

A.cause B.raise C.draw D.make

7. Wait till you get your into the work, you will find it very interesting.

A.teeth B.face C.mouth D.ear

8.There are always those who would substitute fantasy lives the rewards of real activity.

A.on B.in C.as D.for

9.But that she saw it with her own eyes, she it.

A.could not believe B.could not have believed

C.did not believe D.believe

10.After many days of relaxation, he looks as fresh as .

A.water B.desk C.paint D.tree

Ⅱ.Cloze Test(10 points, 1 point for each item)

下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案。

5.第二学期三年级英语下册期中试卷 篇五

听力部分(40分)

一、听录音，选出你所听到的单词。(10分)

( )1. A.giraffe B.friend C.today

( )2. A.she B.he C.long

( )3. A.dad B.big C. bag

( )4. A.teacher B.student C.mother

( )5. A.tail B. pupil C.tall

二、听录音，选出你所到的句子。(10分)

( )1.A.Who’s that boy? B.Who’s that girl?

( )2.A.It has two big ears. B. It has two small eyes.

( )3.A.We have a new friend today. B.We have two new friends today.

( )4.A.Is he your father? B.Is he your brother.

( )5.A.It has a long nose. B.It has a short tail.

三、听录音，判断下列图片与你所听到的内容是(√)否(×)相符。(10分)

四、听录音，选出你所听到的句子的正确答语。(10分)

( )1. A. Hi, I’m Zhang Peng. B. I’m from Shandong.

( ) 2.A. He’s my father. B. She’s my mother.

( )3. A. She’s my sister. B. Yes, she is.

( )4. A. Nice to meet you, too. B. Nice to see you again.

( )5. A. No, she isn’t. B. No, he isn’t.

笔试部分

一、选出下列不同类的单词。(5分)

( )1.A.boy B.girl C. family

( )2.A.grandma B.father C.student

( )3.A.he B.she C.and

( )4.A.so B.mother C.father

( )5.A.long B.short C.tail

二、选出划线部分读音不同的单词。(5分)

( )1. A. pen B. ten C. he

( )2. A. cat B. bag C. crayon

( )3. A. milk B. six C. like

( )4. A. cat B. dad C. face

( )5. A. red B. leg C. me

二、将下列单词与正确的`汉语意思连线。(5分)

三、选择。(10分)

( )1.― It a long tail.

A.has B.have C./

( )2.Look_____that monkey.It’s fat.

A.at B.so C.new

( )3.― Who’s that boy?

― He is my_______.

A.sister B.brother C. mother

( )4. ― Is he your father?

―___________

A.Yes, she is B. No, he isn’t. C. No, she isn’t.

( )5.Mr. Jones, this _______Amy.

A.is B. are C. has

( )6. ―_______are you from?

― I am from Canada.

A.What B.Who C.Where

( )7.Nice____meet you.

A.to B.too C.in

( )8.I am from_____

A. UK B.the China C. Canada

( )9.The boy is _______brother.

A.my B.me C.you

( )10.We ______two new friends today.

A.is B.has C.have

四、情景交际(5分)

1.当你想把自己的妹妹介绍给朋友时，应说:___________

A. This is my sister B. This is my friend.

2. 当你想说：“熊猫是黑白相间的”时，应该说:____________

A.The panda is black and white. B. The panda is black not white.

3. 当你想问那个男人是谁，你应该说什么?

A.Who’s that man? B. Who’s that woman?

4. 当你邀请别人玩游戏时，应说：____________

A. Let’s play a game. B. Sure.

5. 你想问别人来自哪里时，你应该说：____________

A. Where are you from? B. I am from the UK.

五、连词成句。(10分)

1. so It’s tall (.)

2. he your father is (?)

3. back welcome school to (.)

4. has tail short a It(.)

5. your eyes big make(.)

六、看图，选择框内恰当的句子完成对话，将序号填在对话框内。(5)

七、将下列句子排成一段通顺的对话(5分)

( )Thank you.

( ) No, she isn’t.She’s my mother.

( ) She’s beautiful !

( )Is she your sister?

( 1 )Who’s that woman?

八、阅读短文，判断下列句子正(T)误(F). (10分)

I have a new friend. His name is John. He is from Australia. He is tall and thin. He has small ears and big eyes. He has a big nose. H e like s playing football. He has a cat. It’s white and brown.

( )1. John is from Canada.

( )2.John has big ears and small eyes.

( )3.John likes playing football.

( )4. The cat is white and black.

6.三年级第二学期英语试卷分析剖析 篇六

一、试卷整体情况分析

本次试题分两大部分,一部分是听力,另一部分是笔试。从本次考试的情况看,失分较多的是笔试题,这次的试题主要以听力题为主在考核知识的同时也考查了学生的能力。做到了难易适度,体现了知识的层次性和循序渐进原则。

二、考试情况分析

总体来看,学生掌握还算可以,特别是对基础知识掌握较好,但灵活应用所学知识解决实际问题能力有待提高。

三、学生试卷分析 听力部分

第一题,听录音在括号中选择正确单词填空,此题是考查学生对单词的朗读能力,正确率较高。第二题,听录音、选一选和第三题,听一听,辨一辨。学生错题的原因有的是因为粗心、紧张导致的,此题有少部分学生能全做对,全错现象少,得分较高。第五题,听录音在括号中选择正确的答句,此题主要考查学生对日常交际用语的运用能力,此题是考查学生对单词的朗读能力,正确率较高。第六题听录音,涂色。本题主要是检查学生对颜色的认识,多数学生全能做对,少数学生错误原因可能是没有听懂。第七题,听录音,选图片。此题主要考察学生对食物的认识,大部分学生可以全部正确,得分较高。

笔试部分

第一题,根据情境选择正确答案。第2 4 题得分较低。失分原因是审题不认真。第二题,给单词分类。此题将全册单词进行一个系统考察。学生失分较多。有些学生对单词认识不清,有些则是因为粗心单词写不全。还有极少部分学生审题不认真，没按要求写单词序号。第三题,连线,此题主要是考查学生的日常用语和最基本的人际交往能力的运用,要学会运用。此题有多数学生能做对,少数学生错误的原因可能是把句子的意思弄不清。

四、存在问题

A由于基础语音、基本词汇不过关,导致听辨能力不行,学生错误率较高。B听力的预测能力不够。听力题目的选项在本次试卷上是以图示或文字的形式出现的,学生没能在听力题的间隙时候以最快的速度通过视觉获取必要的相关信息,为后面的听力做好准备。主要是缺乏平时必要的训练。在日常教学中,听力是很难通过老师去检测,即使检测错误,订正起来也没那么简单。

C抓关键词的能力不够,在语流中获取信息的能力不够。学生所听到的是一现即逝、一连串的语流,如果停下来思考,就会影响从整体上去把握听力内容,往往不能抓住主旨大意,不能作出正确判断。

D语言的综合运用能力不强。对所学英语不会灵活地运用。有些内容学习过于机械,造成了思维的定势。

五、整改措施

1、基于学生在听力方面的不足,教师务必在不降低读写要求的基础上,强化学生的听力和口语。坚持用英语组织课堂教学,并力求发音准确,语言规范。注重多途径、多形式的口语习练和适当的听力训练,比如多让学生听听录音带。

2、日常教学中要注意灵活处理教学内容,加强前后知识滚动和语言材料的复现,接触积累,综合操练,螺旋上升。同时要注重结合生活实际,突出语言的实用性。开展的交际活动要注意语言形式与意义的紧密结合。教师在平时的教学中还应多注意相关学科知识及文化意识的渗透。

7.高三英语试卷讲评五步曲 篇七

一、学生独立思考

古语曰:“有思则明, 明则通, 通能应变。”作为教育工作者, 我们深深体会到智力的核心是思维。可是, 很多学生尤其是学习困难的学生有很强的依赖性, 要么人云亦云, 照搬他人的答案, 要么等着老师讲。结果, 好的更好, 差的更差, 差距越来越大。因此, 我每节试卷讲评课都会先给学生留出5分钟的时间, 让他们独立思考试卷中多数学生存在错误的题目 (根据答题卡的读卡分析, 选择错误人数达一半和一半以上的题目) 。这样, 有的放矢, “逼”学生主动释疑, 引导他们进行积极的思维活动, 形成自己的解题思路, 这也使得小组讨论交流开展得如火如荼。

二、小组讨论交流

以“组间同质、组内异质”为基本分组原则 (通常2人或4人一组, 学生上英语课前都按照要求就座, 省去上课时临时调动的麻烦) , 以试卷中的共性问题为主线, 以师生、生生互动为基本动力, 以团体成绩为评价标准, 我组织、指导学生进行讨论交流。在自由、轻松、愉悦的讨论氛围中, 他们毫无保留地表达自己的见解, 虚心听取同伴的看法。他们或互相提醒, 或互相纠错, 或互相肯定, 或一起总结, 或求助于老师, 他们神采飞扬, 情绪高昂, 他们尝到了独立思考的甜头, 从而有了乐于思考的积极性和动力。

这样, 小组讨论一方面有利于小组成员集思广益、取长补短来解决一些难题, 发展学生交流、表达和思辨的能力, 另一方面有利于打破沉闷的课堂, 促使学生互相学习、互相帮助, 体验集体荣誉感和成就感, 发展合作精神。

此外, 由学生讨论探究答案自然得出, 所谓真理越辩越明, 印象越辩越深, 下次碰到同类型的题目, 就会被他们轻松击破。

三、全班共享成果

美国心理学家詹姆斯有句名言:“人性最深刻的原则就是希望别人对自己的赏识。”教师要将表现的机会给学生, 他们才是课堂的主人。教师要充分肯定学生, 不断培养学生的自尊心和自信心, 从而使其不仅有勇于进取的信心, 还能有不断进取的动力。

我在试卷讲评课上鼓励学生自己站起来讲解题目, 做小老师。但高中生处于一个敏感的阶段, 秉着“低调做人”的原则, 生怕别人说他好表现、爱出风头。因此, 需要教师的教学艺术和极大的耐心才能促使他们自己主动站起来讲。一开始, 我采用点名的方法, 但我有意点在小组讨论中我留意到的已将题目弄懂的中等生和后进生, 他们回答完后, 我向他们投去肯定的目光, 并大加赞赏, 给予充分的肯定, 让刚才不敢站起来的学生“眼红”, 让他们的心里有点痒, 让他们感觉到自己也是可以的。采用点名的方法两三次后, 再鼓励学生自己站起来讲, 否则, 点名次数多了, 学生又会“麻木”了, 不屑一顾了。开始, 胆大的学生主动站起来讲, 慢慢过渡到大多数的学生自愿站起来讲。对于那些没有一点自信的学生, 我课后与他交流, 鼓励他们、肯定他们, 表达老师对他的期待。就这样, 学生们都动起来了, 他们会主动地讲解老师布置的讨论题目, 教学进度快了, 上课大家都乐了。如果他们讲对了, 我一定表扬。如果讲错了, 务必淡化他的错误, 鼓励其他学生更正、补充。在没有负担的环境下, 有谁不愿意成为同学心中的偶像, 有谁不愿意成为老师的宠儿?

四、老师点拨拓展

亚里士多德曾指出, 一种经验的发生必伴以与它一道出现的经验, 或与它相似的或与它相反的经验而发生。在学生讲解完每道题后, 教师应充当导演, 充当教练, 用精练的语言给学生指点迷津。教师应注重“授人以渔”, 对试题题型、知识点分布、解题思路和技巧进行归纳小结, 从中获得规律性, 从而帮助学生提高研究问题的能力。同时, 透过具体问题拓展外延把考点变化、扩展、深化、增加难度, 引导发散思维, 提高学生的应变能力, 使学生的知识融会贯通。

例如, 碰到下面这道题目:

It was not until the entrance exams were in sight that____that I had so many books to cover and so many exercises to finish.

A.I realized B.did I realize

C.had I realized D.I had realized

教师就应该重组出这样的题目, 帮助学生真正弄清not until的强调句型和not until倒装句型, 培养学生审题和应变的能力。

Not until the entrance exams were in sight____I had so many books to cover and so many exercises to finish.

题目是死的, 又是可变的, 教师讲评时若能适当地对原题进行加一点、减一点或换一点的处理, 将能收到意想不到的效果。

又如, 在讲解完形填空和阅读理解时, 教师要指导学生从语篇的角度去理解文章。在做完形填空时, 应指导学生首先要抓住首句, 通读全文, 把握作者的写作思路。作选择时要有从上下文寻找线索的意识, 同时要兼顾语义、语法。

五、师生共同反思

最后, 教师应引导学生反思这份试卷中错误的原因, 是知识漏洞还是解题方法不当, 是审题不当, 还是答题粗心, 还是因紧张导致临场发挥失误。有区别地加以指导, 引导学生反思、调整、内化自己的学习策略, 在理解的基础上科学地记忆知识点, 培养学生仔细审题、细心答题的好习惯, 以及良好的应试心理。教师切不可因答卷中的失误而埋怨、指责、讽刺、挖苦或嘲笑学生, 挫伤学生的积极性和自尊心。

一次考试, 不仅能检测出学生学习的成绩, 还能检测出教师教学的得失。教师应及时反思自己在教学上的闪光点和不足, 及时调整自己的教学策略与教学方法, 提高课堂教学艺术与教学效率, 形成自己的教学风格。

“问渠哪得清如许, 为有源头活水来”。试卷讲评课的课堂要活起来, 源头要有活水, 学生新鲜的思维就是那活跃课堂的关键。学生不是被动接受的“容器”, 教师要放手让学生独立思考, 学会自己解决问题, 让学生讨论交流, 活跃自己的思维, 让他们先讲题, 真正当课堂的主人, 让他们在老师的指导下, 在自己的反思中, 学劲十足, 不断提高。

参考文献

[1]高效课堂:模式与案例.南京大学出版社.

[2]给英语教师的101条建议.南京师范大学出版社.

8.大学英语试卷二 篇八

1. “大洋一号”航行期间（ ）

A. 途经南海时，逆风逆水

B. 在开普敦（1月18日靠岸）停留期间，船员面朝西南方向欣赏日落美景

C. 在巴西萨尔瓦多港（5月19日靠岸）停留期间，昼越来越长

D. 北太平洋航段内，表层海水的温度越来越高

2. 本次科考发现了16个海底热液区，黑色热液能直立向上形成约3至4层楼高的“黑烟囱”。根据所学知识判断，热液区最可能位于（ ）

A. 大陆架 B. 大陆坡

C. 海岭 D. 深海平原

下图是夏威夷群岛主岛与其3个链状火山岛屿的分布示意图。许多科学家相信，夏威夷群岛主岛和这些链状火山岛屿，应该是因为太平洋板块在一个可视为固定不动且喷发岩浆的“热点”上移动（箭头指向代表板块移动方向）造成的。读图回答3～4题。

3. 此处应位于地球的哪一个位置（ ）

A. 位于板块生长边界 B. 位于板块消亡交界

C. 位于美洲板块 D. 不位于板块交界处

4. 下列哪幅图最能代表从夏威夷群岛主岛（1）到链状火山岛屿（2、3、4）的年龄分布情形的是（ ）

5. 南极“高速公路”起点站麦克默多的纬度大约是（ ）

A. 60°S B. 76°S

C. 83°S D. 85°S

6. 若沿南极“高速公路”从麦克默多驱车前往南极，前进方向是（ ）

A. 先向西北，再向南 B. 先向西南，再向南

C. 先向东南，再向南 D. 一直向正南

7. 南极洲被称为“风库”，那里的盛兴风是 （ ）

A. 东南风 B. 东北风

C. 西风 D. 西南风

8. 读某河流局部地区图，判断下列说法正确的是（ ）

A. 河流以季节性积雪融水补给为主

B. 形成图中沼泽的因素之一是降水丰沛

C. 夏季受来自太平洋的东南季风的影响

D. 冬季是洪涝灾害最严重的季节

读某河流干流和流域范围示意图，回答第9题。

9. 图中河流的乙～丙河段流域范围非常狭窄，其主要原因是（ ）

A. 水流湍急落差大??B. 高山束缚支流短

C. 高原气候降水少???D. 泥沙淤积河床高

下图为非洲南部某区域和赞比西河部分河段，读图回答10～11题。

10. 赞比西河在维多利亚瀑布以上的河段为河流上游，该河段（ ）

A. 干流流速缓慢 B. 峡谷险滩广布

C. 支流短小急促 D. 补给以冰雪融水为主

11. 比较瀑布以上河段与电站大坝以下河段，下列说法正确的是（ ）

A. 瀑布以上河段河床浅而宽，电站大坝以下河段河床深而窄

B. 瀑布以上河段河床深而窄，电站大坝以下河段河床浅而宽

C. 瀑布以上河段以溯源侵蚀为主，电站大坝以下河段以下蚀为主

D. 瀑布以上河段以下蚀为主，电站大坝以下河段以侧蚀为主

12. 阅读以下材料，回答相关问题。

材料一 2011年12月12日在云南省西双版纳关累港举行中老缅泰湄公河联合巡逻执法首航仪式，标志着四国联合巡逻执法正式启动，来自中（甲）、老（丁）、缅（乙）、泰（丙）四国执法部门的代表参加了湄公河护航启动仪式（如下图）。湄公河是一条国际河流，在中、老、缅、泰四国贸易中有重要作用。

材料二 2011年7月下旬开始泰国爆发洪水，截止2011年11月2日，洪灾已经造成泰国427人死亡，2人失踪，波及全国26个府147个县，受灾人数超过210万，被淹土地160万公顷。随着洪水蔓延，泰国的经济社会发展受到严重影响，农业、制造业、物流业、服务业和旅游业遭受巨大损失。

（1）简述湄公河流域主要农业地域类型及其有利自然条件。

（2）说出泰国主要气候类型，并简述这次洪灾发生的自然原因。

（3）结合材料和所学知识，分析湄公河航运畅通对中、老、缅、泰四国经济发展的意义。

13. 下图为世界某地区七月份等温线图（单位：℃），读图回答以下问题。

（1）图中A处闭合等温线内的气温应介于__℃～____℃之间。

（2）图中BCD三处位于同一纬度地带，但B处气温__________（高于或低于）C、D两处，简答形成这一现象的主要原因。

（3）比较图中B、E两海区海水盐度的差异，并简述产生差异的主要原因。