初二英语练习册答案(共10篇)
1.初二英语练习册答案 篇一
1―8CADDADBC
9. 第二次―第一次革命―改革 奴隶制―封建制彼得二世―亚历山大二世资产阶级―地主阶级
10.①大化改新。唐。日本由奴隶社会过渡到封建社会②明治维新。结果失败。日本成功的前提是推翻了封建幕府统治。中国封建势力过于强大③抵御外来侵略,脱亚入欧,成为资本主义强国
11.①美国南北战争,日本明治维新,俄国农奴制改革②第一次工业革命完成,资本主义实力大增,最终战胜封建主义,确立对世界的统治③洋务运动。没有触及封建制度的根基
第六单元测试卷
1―9BCCDACBDC
10. 美国―英国。资产阶级革命―无产阶级运动。第一个无产阶级国家―建立无产阶级政权的第一次伟大尝试。民族解放革命―资产阶级革命。地主阶级―资产阶级
11. ①奴隶制的“废存问题”②限制奴隶制,维护祖国统一③《宅地令》、《解放黑人奴隶宣言》(4)废除了奴隶制,维护了祖国的统一
12. ①向西方学习,实行资产阶级性质的改革(明治维新)②图(一):在经济方面,向西方学习,鼓励发展近代工业;引进西方的先进技术与设备;允许土地私有与买卖图(二):在社会生活与文化教育方面,提倡“文明开化”,实行强制性义务教育③影响:废除了封建制度,使日本走上了发展资本主义的道路;摆脱了民族危机,并且逐渐富强起来,并开始走上对外侵略扩张的道路④
[初二下历史练习册答案]
2.初二暑假作业练习题答案数学 篇二
AADAC x<3 x=“”>3 0,1,2 k<-1 2=“” p=“”>-6 x≥-2 x>2数轴就不画了啊 解不等式①得 x<1 1=“” -2=“” x=“”>-2 解集为-2
解:(1)设租36座的车x辆.
据题意得: 36x<42(x-1)
36x>42(x-2)+30
解得: x>7
x<9
∴7
由题意x应取8.
则春游人数为:36×8=288(人).
(2)方案①:租36座车8辆的费用:8×400=3200元;
方案②:租42座车7辆的费用:7×440=3080元;
方案③:因为42×6+36×1=288,
租42座车6辆和36座车1辆的总费用:6×440+1×400=3040元.
所以方案③:租42座车6辆和36座车1辆最省钱.
练习二
CDAAD 1 k<2 3,2,1,0 m≤2 10 解不等式①得 x<-1 解不等式②得 x≥3 ∴无解
解: 2x+y=m①
x+4y=8②
由②×2-①,得7y=16-m,
∴y=16-m/7
∵y是正数,即y>0,
∴16-m/7 >0
解得,m<16;
由①×4-②,得
7x=4m-8,
∵x是正数,即x>0,
∴4m-8>0,
解得,m>2;
综上所述,2
解:(1)设甲、乙两种花木的成本价分别为x元和y元.
由题意得: 2x+3y=1700
3x+y=1500
解得: x=400
y=300
(2)设种植甲种花木为a株,则种植乙种花木为(3a+10)株.
则有: 400a+300(3a+10)≤30000
(760-400)a+(540-300)(3a+10)≥21600
解得:160/9≤a≤270/13
由于a为整数,
∴a可取18或19或20.
所以有三种具体方案:
①种植甲种花木18株,种植乙种花木3a+10=64株;
②种植甲种花木19株,种植乙种花木3a+10=67株;
③种植甲种花木20株,种植乙种花木3a+10=70株.
(1) 1.2(300-x)m 1.54mx 360m+0.34mx
(2) 1.2(300-x)m≥4/5×300m
1.54mx>1/2×300m
解得97又31/77(这是假分数)
∵x为正整数,
∴x可取98,99,100.
∴共有三种调配方案:
①202人生产A种产品,98人生产B种产品;
②201人生产A种产品,99人生产B种产品;
③200人生产A种产品,100人生产B种产品;
∵y=0.34mx+360m,
∴x越大,利润y越大,
∴当x取最大值100,即200人生产A种产品,100人生产B种产品时总利润最大.
练习三
CBBCD y/x-2 2 x>3 7/10 -3/5 m+n/m-n 8/x+2 原式=x+2y/x-2y 代入=3/7
原式=x+3/x 代入=1+根号3
1/a-1/b=3,(b-a)/ab=3
b-a=3ab
a-b=-3ab
2a+3ab-2b)/(a-2ab-b)
=[2(a-b)+3ab]/[(a-b)-2ab]
=(-6ab+3ab)/(-3ab-2ab)
=-3ab/(-5ab)
=3/5
练习四
BAABA -1/5 2/3 1/a 2 1 2/3 x=4 x=2/3 原式=1/a 代入=根号3-1/2
yˉ1+xˉ1y
即求x/y+y/x
=(x2+y2)/xy
=[(x-y)2+2xy]/xy
=11
x2+y2=3xy
(x2+y2)2=(3xy)2
x四次方+y四次方+2x2y2=9x2y2
x四次方+y四次方=7x2y2
原式=x2/y2+y2/x2
=(x四次方+y四次方)/x2y2
=7x2y2/x2y2
=7
(1)设该种纪念品4月份的销售价格为x元.
根据题意得2000/x=(2000+700/0.9x)-20,
解之得x=50,
经检验x=50所得方程的解,
∴该种纪念品4月份的销售价格是50元;
(2)由(1)知4月份销售件数为2000/50=40件,
∴四月份每件盈利800/40=20元,
5月份销售件数为40+20=60件,且每件售价为50×0.9=45,每件比4月份少盈利5元,为15元,所以5月份销售这种纪念品获利60×15=900元.
练习五
BDDBC y=-3/x -3 m<1 y=90/x c
将点A(-1,2-k2)代入y=k/x 得
2-k2=-k
(k+1)(k-2)=0
∵k>0
∴k=2
∴A(-1,-2)
∴y=2/x
将点A(-1,-2)代入y=ax
-2=-a
a=2
∴y=2x
∵y=k/x与y=3/x关于x对称
∴k=-3
∴y=-3/x
将点A(m,3)代入y=-3/x
3=-3/m
m=-1
∴A(-1,3)
将点A(-1,3)代入y=ax+2
-a+2=3
-a=1
a=-1
(1)将点A(1,3)代入y2=k/x
3=k/1
k=3
∴y=3/x
将点B(-3,a)代入y=3/x
a=3/-3
a=-1
∴B(-3,-1)
将点A(1,3)和B(-3,-1)代入
m+n=3
-3m+n=-1
解之得 m=1 n=2
∴y=x+2
3.初二上册地理课本练习题的答案 篇三
1、巴颜喀拉山;青;川;渤海;二
2、河口;河口;桃花峪;桃花峪
3、龙羊峡;水能;洮河;
湟水;宁夏;河套
4、黄土高原;中游;汾河
5、华北;地上河
6、黄土;水土保持
7、修堤筑坝;小浪底
课堂探究
探究一
(1)源头;河口;河口;桃花峪桃花峪;人海口
(2)地上河;抬高;支流
探究二
(1)B大;中
(2)少;稀疏;C
(3)黄土;千沟万壑
(4)植树造林
课堂训练
一、单项选择题
1B4B
2B5B
3C6C
二、综合题
7、(1)青藏;渤
(2)黄土;植树造林,大力开展水土保持工作
(3)太行;河北;山西;黄土高原;华北平原
课后提升
一、单项选择题
1A7A
2A8D
3D9A
4B10C
5A11D
6D
二、综合题
12、(1)渤海
(2)青海湖
(3)河口;桃花峪
(4)渭河;汾河
(5)③;③河段所在的流域为黄土高原,土质较为疏松,并且该地区气候干旱,加之人们不合理的垦荒、放牧等,使得该地区植被稀少,夏季降水多以暴雨形式出现,因而水土流失现象十分严重(答出“黄土高原、土质疏松、气候干旱、植被稀少、夏季多暴雨”中的三点即可)
13、答案:(1)洮河;湟水
(2)略(注:黄河上、中游的分界点是河口,中、下游的分界点是桃花峪)
(3)青海
(4)河南
(5)一;二
(6)水土流失严重;地上河
4.初二英语练习册答案 篇四
间接( ) 角落( ) 恶心( ) 执著( )
承担( ) 踪迹( ) 免疫( ) 庞大( )
二、补充完整下列短语。
不卑___ 不湿___ 不喜___ 赤手___
道高一尺___ 一招鲜___ 十八般___
三、解释句中加点的词语。
①当我们从生物的世界到人类的社会,一以贯之地看待寄生策略的时候。
一以贯之:
②要我们束手待毙,而恰恰是激发我们竟争、自卫。
束手等毙:
③而细菌得天独厚的是,其繁殖速度极快。
得天独厚:
四、在下面短文中横线上填写词语,最恰当的一项是( )
4月,胡锦涛同志访问美国,向全世界传达了这样一种信息:国际________、国内________、两岸________是中国当前所要努力的方向,中国将按照自己的步伐、发展目标与需要,来进行有计划的改革。21教育网
A.和平和谐 和气 B.和平和谐 和解
C.和平和气 和解 D.和气和谐 和解
五、课内阅读。
1、这篇演讲在写作上有何特点?
2、《细菌的启示》一文主要从哪两个方面安排全文内容的?
5.初二英语基础练习 篇五
一、用下列词的正确形式或时态填空
1.We have three students ___________(name)Jack in our class.2.Had he better ____________(carry)that box?
3.September is one of _________(excite)__________(month)in a year.___(make)a mooncake with eggs.5.I like _________(hear)birds __________(sing).6.Keep your mouth ___________(close)and your eyes open.7.There is a little ________(sheep).How many ________(sheep)are there on the farm?
8.Let’s have a fun _________(swim)across the river.9.Usually he ________(catch)the No.11 bus to work.Look!He is _______(get)on the bus!
10.I like monkeys better, so I think elephants are _________(interest)than monkeys.11.He often ________(go)shopping on Sunday.But there is no food for supper.So I ________(buy)some meat.Would you like ____________(come)with me?
12.It’s easier to say than ___________(do).13.He writes ___________(care)than Jack.二、完成句子
1.打篮球与划船,约翰善于后者的多。John is_______ _______at _______ than _______ basketball.2.玛丽跑得多快呀!_______ _______ Mary _______!
3.后天格林一家将乘飞机去法国。
The _______are going to leave _______France _______ _______the day after tomorrow.4.他在班上跳得最高。He _______ _______ than _______ of _______ _______ _______ in his class.5.明天我们没课。_______ going to_______ _______classes for us tomorrow.三、句型转换,一格一词
1.Jack is doing some washing.Tom is doing some washing too.(合并成一句)
Tom is _______ _______ _______ _______as Jack.2.You’d better go downstairs in a lift.(同义句)
You’d better_______ _______ _______ _______ go downstairs.(划线提问)
_______ _______ his family _______ for a field trip?
4.Everybody knows the answer.(改为反意疑问句)
Everybody knows the answer, _______ _______?
5.He finds it very hard to pass the exam.(同义句)
_______ very hard _______ _______ _______ pass the exam.6.I’d like the mooncakes(划线提问)
_______ _______ _______ you like?
四、完形填空
Christmas is the biggest holiday in the West.It falls __1__ December 25th.What doesChristmas __2__? Christmas Day is the birthday of __3__.When Christ was born __4__ twothousand years ago, many __5__, rich and poor, gave him presents.__6__ today, people stilldo the same thing __7__ each other.Of course, everyone __8__ presents.I guess that is __9__people of all __10__ like Christmas.()1.A.inB.forC.atD.on
()2.A.meanB.sayC.come fromD.talk about
()3.A.jesus christB.christ jesusC.Jesus ChristD.Christ Jesus
()4.A.hardB.hardlyC.nearD.nearly
()5.A.menB.womenC.childrenD.people
()6.A.SoB.ButC.BecauseD.As
()7.A.toB.forC.withD.from
()8.A.likeB.likesC.hateD.hates
()9.A.howB.thenC.whyD.because
()10.A.yearB.yearsC.ageD.ages
6.九下英语练习册答案 篇六
()()()
()()
III、情景反应,选择你所听录音的正确应答语。(5分)()1.A.Good morning.()3.A.What’s this?()5.A.Good morning.笔试部分(80分)
IV、写出从B到K的大小写字母。(20分)V.找出下列字母中有相同发音的答案。(10分)()1.A.Aa, Ff B.Cc, Dd()2.A.Hh, Jj B.Gg, Kk()3.A.Bb, Jj()5.A.Aa, Kk()4.A.Aa, Ii B.Gg, Hh
C.Gg, Ff C.Bb, Ii C.Ee, Ii
D.Ee, Aa D.Ee, Ff
D.Ii, Cc D.Ii, Gg
D.Bb, Gg
B.Good afternoon.C.Good evening.B.This is a bed.C.It’s a bag.()2.A.Nice to see you.B.Nice to meet you.C.Hello.()4.A.What’s your name? B.Hello, I’m Amy.C.Good.B.Good afternoon.C.Good evening.B.Kk, Dd B.Hh, Ff
C.Gg, Jj C.Jj, Ee VI.写出下列单词中你所学过的元音字母。(10分)Hello()morning()bed())
D.good
E.morning
()5.相遇()10.早晨
bag()
nice()afternoon()bike(A.chick B.Hi()1.蜜蜂()6.小鸡 C.bee VII.将下列单词与中文意思配对。(20分)F.bike G.evening H.meet I.afternoon J.bag
()2.晚上()7.下午
()3.书包
()4.好的
()8.自行车()7.喂
VIII.选择题。(20分)
()1.早晨见面问好, 你应该说_____________ A.Good morning.B.Good afternoon.C.Good evening.()2.想知道对方的名字时, 你应该说____________ A.I’m Amy.B.Hello.C.What’s your name?
()3.向别人介绍自己, 你应该说_____________ A.Good morning.B.I’m Ben.C.What’s your name?
()4.向第一次见面的人问好, 你应该说_____________ A.Nice to meet you.B.My name’s Dale.C.Hello, I’m Ben.()5.想向别人介绍自己, 你不可以说______________
A.I’m Cara.B.Hello, Ben.A.Hello.C.My name is Amy.C.What’s this?()6.想向别人打招呼问好, 你不可以说_______________
B.Good evening, Ben.()7.你想知道这个是什么? 你应当问_______________
A.Hi, what’s this? B.Hello, what’s your name?---_____________
A.I’m Ben.B.Good afternoon, Ben.C.Hi, this is Ben.---_______________
7.新编英语教程4练习册翻译答案 篇七
1.每当他午夜下班回家,他总是蹑手蹑脚地上楼,以免吵醒邻居。
Every time he rerurned home from work at midnight,he would tiptoe upstairs ,trying not to disturb his neighbours.2.为了与新来的邻居建立一种和睦的关系,格林先生不失时机地主动帮她把行李搬进屋子。
To establish some kind of rapport with his new neighbour,Mr.Green lost no chance in offering to carry her luggage to the house.4.要不是她的朋友时常鼓励她,帮助她,她将一事无成。
If it had not been for the constant encouragement and help from her friend ,she couldn’t have accomplished anything..5.几天前他还对这项计划嗤之以鼻,可是他现在却以高涨的热情去努力落实这项计划,这真是令人难以理解的转变。
It was only a few days ago that he was full of contempt for the new project ,but now he is working hard with zest for its realization.what a battling change!
6.从她的自传可以断定,她对那名钢琴师始终怀有一种复杂的感情。
Judging from her autobiography,she always had mixed feelings for that pianist.7.她在大厅里候机时与两名美国旅行者攀谈起来,谈到了很多有趣的跨文化方面的问题。
Whiling wating in the lounge for the flight ,he struck up a conversation with two American travellers and touched on many interesting corss-cultural issues.8.这些女孩子都害怕晚上单身一人值夜班。These girls all dread working alone on night duty.9.我不在乎加班工作,我在乎的是在周末尽是做一些无意义的琐碎杂务。
I don’t mind working overtime.what I do mind is working on those insignificant trivial things during the weekend.10.事实上没有人要求他们在开学的第一天去干什么。当他们看到教室里乱七八糟时,便自发地打扫了起来。Actually nobody asked them to do anything on the first day of school.When they saw the classroom in such a mess,however ,they cleaned it spontaneously.Unit2
1.一种莫名的疾病严重影响了他的大脑,使他丧失了全部记忆。
An unknown disease affected his brain so badly that he lost his memory completely.2.聚集在法院外进行抗议的人群并没有对这个太平洋岛国的法官和陪审团产生任何影响。
The protesting crowds outside the courthouse had no effect at all on the judges and the jury of this Pacific island country.3.一个做了亏心事的人听的哦啊每一响声都如同惊弓之鸟。A guilty man apprehends danger in every sound.4.她温柔的声音和慈祥的笑容使屋子里的每个人都感到轻松自在。
Her soft voice and gracious smile put everyone in the room at ease.5.只有当你很好地掌握了各种语体之后才能在各种场合恰如其分地用英语进行表达。
Not until you have a good command of a scale of styles can you speak English appropriately in different situations.6.对现代经济学的一知半解是导致他经营失败的原因之一。
His haphazard knowledge of modern economics was one of the reasons why he failed in his business.7.信赖的总经理很不习惯公司里同事们称呼他的方式。
The new general manager did not feel very comfortable with the way he was addressed by his colleagues in the company.8.无论他作何种努力来改变其在公众心目中的形象,都无济于事。
No matter how hard he had tried ,his efforts to improve his image in the mind of the public proved to be ineffective.9.指挥官从没有想到他的士兵会无视他的命令。
It was the last thing that occurred to the commander that his souldiers would defy his orders.10.作文课的老师认为这些话是陈词滥调,可是它们对学生却又很大的吸引力。
Although the composition teacher considers these expressions nothing but cliches,they appeal very much to the students.Unit 3
1.这个看上去饱经风霜的渔翁伸出他那由于辛劳而布满老茧的双手,开始讲述了他海上生活的艰难历程。Holding out his work-gnarled hands,the old fishman with a weather-beaten face started to tell us about the hardship of his life on the sea.2.小女孩显然受伤不轻。她哭了好几个小时,现在仍在呻吟。
The little girl is apparently badly injured.She’s been crying for hours and she’s still moaning.3.当诺贝尔奖得主由主席陪同走上讲台时,整个大厅顿时爆发出一阵欢呼声和鼓掌声。
As the Nopel Prize winner went onto the platform escorted by the chairman ,the whole hall rocked with cheers and clapping.4.舞会进行到高潮时,舞厅里一片乐曲和歌声。
When the dance party was in full swing ,music and songs swriled all aroud the ballroom.5.不知是何原因,许多大学生又表现出对中国传统戏剧如京剧和越剧的浓厚兴趣。
For reasons that are not quite undersood ,there has been a revival of strong interest in traditional Chinese drama,such as Beijing Opera and Shaoxing Opera,among the college students.6.由于人们成群结队地涌向街头去观看一年一度的节日庆典游行,市中心的交通一度被中断了。
The traffic downtown was held up for a while because croeds of people swarmed into the streets to watch the annual holiday parade.7.当这个小伙子看到心碎了的父母亲时,他为自己给家庭带来这么多麻烦而深感愧疚,他跪在8.她们的面前祈求宽恕。When he say his heart-broken parents,the young man felt so ashamed of himself for causing so much trouble to the family that he went on his knees and begged their forgiveness.8.看到了久别了的儿子下了船,老人激动不已,可出乎意料的是,小伙子却视而不见转身就走。
He was very excited at the sight of his son ,whom he had not met for a long time ,getting off the ship.But it was quite out of expectation that his son pretended not to see him ,and turning his back to his father ,the young man walked off right away.9.这两个邻国结束了长达十年的战争,签署了合约。自那时起,两国的经济交往和双边贸易得到迅猛发展。The two neighbouring countries stopped the decade-long war and signed a peace agreement.From them on ,their economic exchange and bilateral trade developed by leaps and bounds.10.当这位诺贝尔物理奖获得者出现在师生面前,全场一片欢腾。她的演讲不时被震耳欲聋的掌声所打断。As soon as the winner of Nobel Prize of physics appeared before the faculty and students ,the hall broke into a sea of cheers.And his speech was punctuated by deafening clapping.Unit 4
1.除非你在阅读过程中积极思考,否则是不大可能理解逻辑学的文章的。
You are not likely to grasp an article on logic unless you think actively in the course while writing.2.依作者所见,阅读一本好书的最有效的方法之一是在阅读时动手评注。
According to the author ,one of the most effective ways to read a good book is by writing between the lines while reading.3.他全神贯注地投入在一项克隆实验工作上,根本没有察觉到我进入实验室。
He was so absorbed in one of his cloning experimets that he wasn’t aware of my entering the laboratory at all.4.我不认为幸福在于获取自己所需,我认为性欲在于为社会尽责任。
I don’t think happiness consists in obtaining what you need ,I believe happiness consists in doing what you can for socity.5.气压,氧气和温度是宇航员在月球上赖以生存的基本条件。
Air pressure ,oxygen and temperature are among the conditions indispensable to the survival of the astronauts on the moon.6.从某种意义上说,研究生也属于科研人员。
In a certain sense ,postgraduate students are also researchers.7.他宁愿把所观察到的东西,无论大事小事,都用笔记下来,也不愿用脑记,因为他相信这么一句话,“好记性不如烂笔头。
He would rather set down what he has obseved,important or trival ,in his notebook than commit it to his memory ,because he believes in the remark that “The worst pen is better than the best memory”.8.学生原本指望他会解释锐利观察和逻辑思维为何是科学研究必不可少的品质,但是他的一番讲话不仅没有使人明白,倒反而使人更糊涂了。
He was suppose to explain to the students why sharp observation and logical thinking were indispensable qualities to research work ,but his talk was more confusing than clarifying.9.根据他所提出来的外语学习的理论,一个人在精神松弛的状态下学习英语要比在精神集中的状态下学习英语更有效。
According to his theory of foreign language learning ,one can better learn English in a state of relaxation than in a state of concentration.10.计划和列提纲只是写作的前奏曲,一篇论文的撰写还需要经过初稿,修改,编审等环节。
Planning and outlining are only a prelude to writing.Drafting ,revising and editing are necessary steps required of thsis wrting.Unit 6
1.他作为一名著名演员其实并不轻松。他必须不断提高演技以迎接新的挑战。
Being a famous actor ,he actually does not have an easy time of it.He must constantly improve his acting to meet new challenges.2.校报上宣布,国际劳动节的夜晚将举行盛大校友晚会。
As was announced in the universary newspaper ,a grand alumni party will be held on the evening of the International Labour Day.3.激动地孩子们度过了一个未眠之夜,于次日前便拂晓前便起身去海边,满怀希望能见到日出。
After a sleepless night ,the excited children got up before dawn the next day and headed for the sea in the hope that they could see the sunrise.4.这名心理学教授退休后不甘闲逸,开始从事儿童教育游戏的开发工作。
Agter retirement ,the psychology professor,unwilling to live an inactive life ,took to developing educational games for children.5.越来越多的国家通过了严禁任何人在国境线内任意猎取野生动物的法律。
An increasing number of countries have passed the law which forbids anyone to hunt wildlife at will on the territory of their countries.6.看到这些孩子熟练地在因特网上搜去信息,我便想起了我的孩提时代。那是我不知道电脑除了文字处理之外还能做什么。
The sight of the children’s skiilful serch for information on the Internet brought o my mind my own childhood.At that time I had no idea of what else a computer could do besides word processing.7.我不知道在动物世界里是否总是弱肉强食。
I don’t know if it is always the case in the animal world that stronger animals prey upon the weaker ones.8.许多人对他们所居住的城市里雨后春笋地冒出摩天大楼而深感自豪,他们还误以为摩天大楼是现代化的同义词呢。
Many people are very proud of the skyscrapers that have mushroomed in their cities ,with the mistake idea that skyscrapers are the synonym of modernization.9.我不认为这是一起偶然时间。从车子被撞的样子来看,这肯定是蓄意谋杀。
I don’t think it was an accident ,Judging from the way the car was hit ,it was definitely a deliberate murder.10.掌握好体操技巧需要多年的训练,掌握好英语技能也是如此。
The mastery of gymnastic skills requires years of training.The same is true with the mastery of English skills.Unit 7
1.他们一直在痛苦中等待,直至警察救出了他们被绑架女儿的消息传来。
They had been waiting in anguish until the news came that the police had rescued their kidnapped daughter.2.情绪激动的老人打开儿子从海外寄来的信,他越想控制住发抖的双手,他们发抖的越厉害。
The emotional old man opened the letter his son sent him from overseas.The harder he tried to control his trembling hands ,the more trembling they became.3.虽然他们从狼的口中救出了那头羊,但看到羊全身痛苦地抽搐着,他们感到很难受。
They saved the sheep form the grip of the wolf ,but it hurt them very badly to see the wounded sheep writing in pain.4.他一步不停地跑向火车站,到那里时已经气喘吁吁,满头大汗。
He ran all the way to the railway station without stopping and when he arrived there,he was out of breath with sweat trickling down his cheeks.5.一场突如其来的瓢泼大雨使路人仓皇逃向路边的商店避雨。
A studden dowmpour sent the pedestrians scurrying for shelter in the stores along the streets.6.看到受伤的水牛在狮子的围攻中痛苦地挣扎,猎人出于怜悯开枪将它打死。
Seeing the wounded buffalo struggling in pain under the attack of the lions ,the hunter shot it dead out of pity.7.尽管实验一次次的失败,他们的热情非但没有消失,反而更加高涨。
Althouth their experiments failed again and again ,their enthusiasm ,instead of ebbing away ,was rising.8.他们从未料到新的合作者竟然是个无耻之徒。当再次相见时,他们的怨气和他的鄙视油然而生。It never occurred to them that their new parner was such a mean person.A swelling feeling of rage and contempt rose in them when they met again.9.尽管他做了最好的准备,但一想到将在拳击场上面对那个世界冠军,便不寒而栗。
Although he was well prepared ,he felt an involuntary chill on his back at the thought of fighting in the boxing ring with the world champion.10当大夫告诉他这只是一次小手术,时间不会超过一个小时时,他脸上露出了将信将疑的神色。When the doctor told him that it was only a minor operation that would take no more than an hour ,there was an incredulous look on his face.Unit 8
1.我连汽车都不会开,更不用说飞机了。I can’t drive a car ,let alone fly an airplane.2.北极居住着各族人民。与北极显然不同的是,南极却没有永久性的居民,因为那里的气候不利于人类生存。
The Artic is populated with people of different nationalities ,The Antarctic ,in contrast ,has no premanent residents because the climate there is unfavourable to human survival.3.虽然她在接受心脏手术后自我感觉正常,但是医生却坚持认为她应该隔天去医院检查一次。
Although she felt like a normal person after the heart surgery ,the doctor insisted that she should go to the hospital for examination every other day.4.挂不得他们一场一场地输球,他们已好久没有训练了。
Small wonder they lost the games time and again ,they had been out of training for quite some time.5.我总觉得相当数量的董事会成员会强烈反对我们的改革计划。
I am inclined to think that there will be strong opposition to our reform plan among quite a few board members.6.公司上上下下都认为新来的总经理目光远大,足智多谋,富有竞争意识。
The employees of the company at all levels think of their new manger as farsighted ,resourceful and highly competitive.7.我们不能姑息任何人的有害社会秩序的行为,不管他是谁,不管他来自何处。
No matter who he is or where he is from ,we cannot tolerate anyone’s behaviour that is jnjurious to social order.8.所有那些声称见过神秘野人的人都肯定地认为,野人最显著的特征是巨大的身材。
Those who claimed to have set eyes on the musterious savage in the forst all affirmed that the most distinctive feature of the savage was its huge size.9.关于小岛上饮用水的质量问题,据登岛探险家的报道,岛上的水有一种甘甜清新的味道。
As regards the quality of the drinking water on that small island ,the explorers who set foot on the island reported that it was sweet ,pleasant and refreshing.10.从经济收益方面来考虑,出版学术专著的主要问题在于这类书记的销量较少,平均每次印刷的数量只有数百本而已。
As far as the business porfits are concerned ,the main drawback of the publicationof academic treatises is that they usually do not smell well ,with ad average number of only several hundred copied for each printing.Unit 9
1.我真的怀疑经过处理的饮用水能够提供人类健康所必需的矿物质。
I really doubt if the treated drinking water will truly provide sufficient minerals that are essential to human health.2.灿烂雅文化是如何从地球上突然消失的?这始终是一个难解之谜。
As to how the splendid Maya Culture disapprared all of a sudden from the earth ,it remains a mustery hard to solve.3.当弄清楚是一只大老鼠导致传动系统中断运动时,我们都松了一口气。不久传送系统便恢复了正常运转。When it was made plain that it was a big rat that had caused the breakdown of the transmission system ,we all felt relieved.soon the system was brought to its norml operation.4.当他得知他因年事已高而不能参加这次航天旅行时,他几乎陷入绝望。为了参加这次梦寐以求的旅行,他足足准备了三年。
He was almost driven to despair when he learned that he was considered too old to take part in the space voyage.He had spend three years preparing for this long-dreamed-of trip.5.由于该地区唯一的交通工具是毛驴,这次旅行简直是一场灾难。我们大部分时间都是在驴背上颠簸。大家几乎被炎热的天气和飞扬的尘土所窒息。
The trip turned out to be a disaster ,for the only means of transport available in that area were donkeys.We spend most of our time joggling on the backs of these animals ,almost stifled by the heat and swirling dust.6.他不是一个很受学生欢迎的教授,因为他在讲课时总是走题和拖堂。
He was not a very popular professor among the students because he would invariably wander off his topic during the course of his lecture and drag the class into the time for break.7.这个大收藏家声称,他的收藏品里有几幅价值连城的画,没有人买得起。
The prominent collector declared that his collection included some invaluable paintings that no one could afford to buy.8.为了挽救被蝎子所叮的小孩的生命,村民们想方设法减缓毒素产生的作用。
To save the life of the little boy stung by a scorpion ,the villagers used all the means and ways available to reduce the effect of poisoning.9.这座城市举办的一年一度的冰雕节吸引了来自全国的各类人士。
The annnual Ice Sculpture Festival in this town attracted all manner of people from all over the country.10.由于战争和自然灾害,一些国家陷入极度贫困中。联合国的一名官员强调,正因为如此,发达国家应承担责任,为发展中国家的经济发展做出新的贡献。
8.初二英语练习册答案 篇八
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
更多免费资源下载绿色圃中小学教育网http:// 课件|教案|试卷|无需注册
9.英语练习及答案 篇九
The room was so quiet that she could hear the()of her heart.A.hitting B.beating C.hurting D.striking 答案:B 标准答案:B 您的答案:A 题目分数:1.0 此题得分:0.0
2.第2题
Her()English is the best in the class.A.speaking B.spoken C.talked D.writing 答案:B 标准答案:B 您的答案:A 题目分数:1.0 此题得分:0.0
3.第3题
The reason why the car was stopped was().A.that the road was slippery B.due to the slippery road C.because the road was slippery D.because of the slippery road 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
4.第4题 Science has made()possible for machines to take the place of human labour.A.this B.that C.its D.it 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
5.第7题
Not until Mr.Smith came to China()what kind of a country she is.A.did he know B.he knew C.he didn’t know D.he could know 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
6.第8题 The computer center,()last year, is very popular among the students in this school.A.open B.opening C.having opened D.opened 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
7.第9题
They finally got to the village()a rainy evening.A.in B.on C.at D.by 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
8.第10题
Dark glasses are sometimes worn to()the eyes from strong sunlight.A.prevent B.care C.defend D.protect 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
9.第11题 They often()the scientist’s name, but they have never seen him.A.learn from B.hear from C.hear of D.listen to 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
10.第12题 The thing that()is not whether you fail or not, but whether you try or not.A.matters B.cares C.considers D.minds 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
11.第15题
He didn’t keep on asking me the time any longer as he had had his watch().A.to repair B.repaired C.repairing D.repair 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
12.第16题 Although he was so tired,()he went to the concert with his friend that night.A.but B.so C.yet D.and 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
13.第17题 His speech made()deep impression on the audience that they could hardly forget it.A.such a B.so a C.so D.such 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
14.第18题
“I’m sorry to keep you waiting.” “Oh, not at all.I()here only a few minutes.” A.have been B.had been C.was D.will be 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
15.第19题
Under no()will I try it again.A.circumstances B.situation C.time D.occasion 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
16.第20题
My father can speak three languages and English.A.beside B.besides C.except D.except for 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
Chinese()17.第21题
Please()that you won’t make such a mistake.A.make out B.make in C.make sure D.make up 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
18.第22题
They were all very tired, but()of them would stop to take a rest.A.any B.some C.none D.neither 答案:C 标准答案:C 您的答案: 题目分数:0.0 此题得分:0.0
19.第26题 Don’t be too()about things you are not supposed to know.A.strange B.amusing C.curious D.conscious 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
20.第27题
English teachers are()needed in remote areas.A.badly B.nearly C.scarcely D.rarely 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
21.第28题 He as well as I()the suggestion you put forward just now.A.agree with B.agree to C.agrees with D.agrees to 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
22.第29题
Will the()of houses and land continue to increase? A.worth B.value C.cost D.importance 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
23.第30题
()we hurry up, we won’t be able to catch the last bus.A.Except B.Without C.Even D.Unless 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
24.第31题
Mrs.White found her husband surrounded by letters and papers and()very worried.A.looking B.looks C.looked D.to look 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0
25.第32题
He didn’t know what()while he was away from home.A.would happen B.happened C.had happened D.happens 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
26.第33题
()himself an ideal job.A.Nowhere he could find B.Nowhere could he find C.He could nowhere find D.He could find nowhere 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
27.第34题
About 100 new students have been()in the English Department.A.dismissed B.admitted C.graduated D.entering 答案:B 标准答案:B 您的答案: 题目分数:1.0 此题得分:0.0
28.第35题()what the situation would be like, they decided to keep silent.A.Knowing not B.Not know C.Not knowing D.Having not known 答案:C 标准答案:C 您的答案: 题目分数:1.0 此题得分:0.0
29.第36题
They are working hard to()what they have lost.A.make up for B.keep up with C.catch up with D.make out for 答案:A 标准答案:A 您的答案: 题目分数:1.0 此题得分:0.0 30.第37题 He called the police for help,()that the problem was more than he could deal with.A.to realize B.having been realized C.realized D.realizing 答案:D 标准答案:D 您的答案: 题目分数:1.0 此题得分:0.0
31.第5题
他有可能故意考试不及格吗?(on purpose)答案:Is it possible for him to fail the examination on purpose? 标准答案:Is it possible for him to fail the examination on purpose? 您的答案: 题目分数:4.0 此题得分:0.0
32.第6题
我们应该充分利用网络资源获取信息。(make use of)答案:牋牋 We should make full use of internet to get information.标准答案:牋牋 We should make full use of internet to get information.您的答案: 题目分数:4.0 此题得分:0.0
33.第23题
要是有更多的钱,我就能在市区买一套公寓了。(with)答案:With more money, I’ll be able to buy a flat in the downtown.标准答案:With more money, I’ll be able to buy a flat in the downtown.您的答案: 题目分数:4.0 此题得分:0.0
34.第24题
? 这个新方法会帮助你们解决这个难题。(enable)答案:牋牋 The new method will enable you to solve the difficult problem.标准答案:牋牋 The new method will enable you to solve the difficult problem.您的答案: 题目分数:4.0 此题得分:0.0
35.第38题
即使智力一般的学生也可以通过改进学习习惯而成为优等生。(even)
答案:.Even students of average intelligence can be top students by improving their studyhabits.标准答案:.Even students of average intelligence can be top students by improving their studyhabits.您的答案: 题目分数:4.0 此题得分:0.0
36.第39题
老板进来的时候他假装在看一份重要文件。(pretend)答案:牋牋牋牋牋牋牋牋? He pretended to be reading an important paper when the boss entered.标准答案:牋牋牋牋牋牋牋牋? He pretended to be reading an important paper when the boss entered.您的答案: 题目分数:4.0 此题得分:0.0
37.第40题
他不久就要离开了,但我们还没有找到可以替代他的人。(take the place of)答案:? He has to leave soon, but we haven’t found anyone who can take the place of him.标准答案:? He has to leave soon, but we haven’t found anyone who can take the place of him.您的答案: 题目分数:4.0 此题得分:0.0
38.第13题
Day after day, a small blue truck speeds along the streets of Funen.A dog sits besides the driver, looking at him as if listening to his 1.Whenever the truck goes by, the people of Funen turn and stare, some in 2 , others in admiration, for on its _ __3 are printed the words TRACKER DOG and a telephone number.Yes, the passenger in the blue truck is a dog that is used to find lost things or follow the 4 of persons and animals.Within seven years, the dog and his 5 Anderson have found lost things 6 nearly $ 400,000, 7 are watches, jewelry, money, cows, pigs, and 8 dogs.Of course, the 9 of the dog is his sensitive nose.Each year the dog and Anderson 10 700 calls for help.Four out of five __11__ they find what they are 12 to look for.Whenever the phone rings in Andersons house, the dog is 13 excited.He quickly runs to the truck, 14 to be off in search of 15 lost._ the way, Anderson 17 the names of what they are looking for.So by the time they arrive, the dog is 18 to get to work.He circles here and there until he picks up the 19 of an object in a place 20 it doesn’t belong.难度:0.9 认知类型:应用
1.A.songs B.orders C.question D.advice 2.A.wonder B.anger C.row D.fear 3.A.roof B.ceiling C.bottom D.sides 4.A.advice B.rules C.tracks D.feet 5.A.customer B.officer C.fellow D.owner 6.A.valuable B.rather than C.worth D.like 7.A.which B.among which C.such D.so 8.A.wild B.even like C.lovely D.other 9.A.task B.duty C.secret D.habit 10.A.make B.pay C.answer D.refuse 11.A.things B.times C.persons D.places 12.A.permitted B.asked C.guided D.willing 13.A.immediately B.hardly C.probably D.little 14.A.eager B.afraid C.nervous D.ought 15.A.who B.what C.a D.the 16.A.By B.In C.On D.Asking
17.A.remembered B.repeats C.learns D.forgets 18.A.pleasant B.ready C.used D.ordered 19.A.smell B.signal C.sight D.taste 20.A.which B.that C.where D.when
答案: 1-5 BADCD 6-10 CBDCC 11-15 BBAAD 16-20 CBBAC
标准答案:
1-5 BADCD 6-10 CBDCC 11-15 BBAAD 16-20 CBBAC 您的答案: 题目分数:13.0 此题得分:0.0 教师未批改
39.阅读理解
1.阅读理解 标准答案:B 您的答案: 题目分数:3.0 此题得分:0.0 批注:
2.阅读理解 标准答案:A 您的答案: 题目分数:3.0 此题得分:0.0 批注:
3.阅读理解 标准答案:A 您的答案: 题目分数:3.0 此题得分:0.0 批注:
4.阅读理解 标准答案:C 您的答案: 题目分数:3.0 此题得分:0.0 批注:
5.阅读理解 标准答案:D 您的答案: 题目分数:3.0 此题得分:0.0 批注:
题目总分数:15.0 题目总得分:0.0 题目总批注:
40.阅读理解
1.阅读理解 标准答案:A 您的答案: 题目分数:3.0 此题得分:0.0 批注:
2.阅读理解 标准答案:D 您的答案: 题目分数:3.0 此题得分:0.0 批注:
3.阅读理解 标准答案:D 您的答案: 题目分数:3.0 此题得分:0.0 批注:
4.阅读理解 标准答案:B 您的答案: 题目分数:3.0 此题得分:0.0 批注:
5.阅读理解 标准答案:C 您的答案: 题目分数:3.0 此题得分:0.0 批注:
题目总分数:15.0 题目总得分:0.0 题目总批注:
10.初二物理功和机械能练习题及答案 篇十
一、选择填空
1.如图3所示,小朋友沿着滑梯匀速下滑的过程中,下列说法中正确的是(忽略空气阻力)()
A.他受重力、支持力、下滑力和摩擦力的共同作用 B.他受重力、支持力和摩擦力的共同作用 C.他的重力势能转化成了动能和内能
D.他的重力势能减小,动能增大,机械能不变 2.直升机在匀速下降过程中,能量变化情况是()
A.势能减少,动能增加,机械能不变B.势能减少,动能不变,机械能减少 C.势能不变,动能不变,机械能不变D.势能减少,动能不变,机械能不变 3.关于机械能的论述,下列说法正确的是()
A.在空中飞行的飞机只具有动能B.炮弹具有的机械能一定比子弹具有的机械能大
C.质量和速度都相同的物体具有的动能一样大D.质量大的物体的具有的重力势能一定大 4.关于机械效率的说法正确的是()
A.越省力的机械,其机械效率越高B.做的总功越多,机械效率越高
C.做的有用功越多,机械效率越高D.有用功一定时,额外功越少,机械效率越高
5.甲、乙两辆汽车,功率之比为2∶1,在相同时间内沿水平路面通过的距离之比为1∶2.则它们所做的功之比为()
A.2∶1 B.1∶1 C.1∶4 D.4∶1 6.下列单位中不是功的单位的是()
A.W·s B.J C.J/s D.N·m 7.某人用手将一物体竖直举高2m和用机械效率为80%的斜面将它升高2 m.比较两种情况()
A.用手举高时做功多B.用斜面升高时做功多 C.两种情况做功一样多D.两种情况都不做功
8.跳水运动员从最高点向水面下落的过程中,他的________能逐渐减少,________能逐渐增加. 9.一只小鸟在空中飞行时具有40J的机械能,若它具有10J的势能,则它具有________J的动能. 10.小明在水平面上用50 N的水平推力,加速推着一辆重120 N的小车,前进了10 m,小明的推力做功是________J.水平面对小车的支持力做功是________J.
11.甲、乙两辆汽车在公路上匀速行驶.如果它们的功率相同,行驶速度之比v甲∶v乙=2∶1.在相同的时间内,甲、乙两车牵引力做功之比为________.
12.用一只铁桶从深井中取水,第一次取半桶,第二次取满桶,两次相比:W1额_____W2额,η1___η2(填“>”“<”或“=”)
二、计算题(每小题5分,共10分)
13.一人用如图所示.的滑轮组匀速提升物重为200牛的物体,此时人对绳的拉力为120牛,不计绳重和摩擦.求: 1)滑轮组的机械效率. 2)如果人的体重为600牛,那么他们用此滑轮组所提升物体的物重不能超过多少牛? 1)滑轮组的机械效率等于有用功除以总功,有用功等于物体的重力乘以物体上升的高度,总功等于拉力乘以绳子自由端移动的距离.
2)当绳子的拉力和人的体重相等时,滑轮组所提升物体的物重最大,先计算出动滑轮的重力,最大拉力就等于最大物重与动滑轮重和的一半.从而求出最大物重.
功和机械能参考答案1.B 2.B 3.C 4.D 5.A 6.C 7.B 8.势 动 9.30 10.500 0 11.1∶1 12.= <
13.解答:解:(1)η=Gh2Fh=200N2×120N=83.3% 答;滑轮组的机械效率为83.3%.
(2)设动滑轮重G0,由2F=G+G0,得G0=40牛
设提升的最大物重为G′,人的体重为G1,此时绳的拉力为F′,则F′=G1,由2F′=G′+G0,得所能提起物体的最大物重
G′=2F′-G0=2×600N-40N=1160N.