英语语法练习答案详解

2024-08-28

英语语法练习答案详解(精选9篇)

英语语法练习答案详解 篇1

41.She did her work _________her manager had instructed.A.asB.untilC.whenD.though 答案:A 【参考译文】她按照经理的指示办事。【试题分析】本题考查关系词的用法。【详细解答】 as可做关系词引导方式状语从句;until和when都引导时间状语从句;though引导让步状语从句。根据句意,此处应用关系词引导方式状语从句,故选项A为正确答案。

42._______ of the twins was arrested, because I saw both at a party last night.A.NoneB.BothC.NeitherD.All

答案:C【参考译文】那对双胞胎都没被捕,因为我昨晚在一个晚会上看见了他俩。【试题分析】本题考查代词的用法。【详细解答】根据句意,此处指那对双胞胎都没被捕,所以可排除B、D项; none表示“没有(人或物)”,后常跟of短语,作主语时谓语动词可用单数或复数形式;neither表示“(二者之中)哪个也不”,后跟of短语,作主语时谓语动词须用单数形式。此题中指双胞胎两个人中哪个也没被捕,故选项C为正确答案。

43.For some time now, world leaders _______ out the necessity for agreement on arms reduction.A.had been pointingB.have been pointing

C.were pointingD.pointed

答案:B【参考译文】一段时间以来,世界各国首脑一直在不断地指出达成武器裁减协议的必要性。【试题分析】本题为语法题,考查对时态的掌握。【详细解答】由句中时间状语“for some time now”可知,这里要用现在完成时;选项B为现在完成进行时,表示动作从过去某一时间一直持续到现在,故为正确答案。

44.Have you ever been in a situation ______ you know the other person is right yet you cannot agree with him?

A.by whichB.thatC.in whereD.where

答案:B【参考译文】你是否经历过明知对方是正确的却不愿意同意其观点的场合呢?

【试题分析】本题考查关系词的用法。【详细解答】本句是一个同位语从句,先行词是situation,从句是对其内容的解释,此同位语从句只能用that引导。

45.We’ve just installed two air-conditions in out apartment,1

_______should make great differences in our life next summer.A.whichB.whatC.thatD.they

答案:A【参考译文】我们刚在套房里装了两台空调,明年夏天的日子会大不一样。【试题分析】本题考查关系代词的用法。【详细解答】这是一个非限制性定语从句,此处缺少一个关系代词;由于该非限制性定语从句先行词是air-conditioners,所以关系代词应用which。

46.AID is said _________ the number-one killer of both men and women over the past few years in that region.A.beingb.to beC.to have beenD.having been

答案:C【参考译文】据说艾滋病在过去的几年中对于那个地区的男女来说是头号杀手。

【试题分析】本题考查对非谓语动词的掌握。【详细解答】由句中的时间状语“over the past few years”可知动作发生在谓语动作之前,故应用不定式的完成式作宾语。

47.She managed to save ______ she could out of her wages to help her brother.A.how little moneyB.so little money

C.such little moneyD.what little money

答案:D【参考译文】她设法从工资中攒了如此少的钱来帮助她的哥哥。【试题分析】本题考查副词的用法。【详细解答】本句只能选what 用作关系形容词,表示“尽可能多地”。

48.Fool ____ Jane is, she could not have done such a thing.A.whoB.asC.thatD.like

答案:B【参考译文】简再笨也不可能做这样的事。【试题分析】本题考查连词的用法。【详细解答】在这四个选项中,只有as引导的让步状语从句可用倒装,故为正确答案。

49.The experiment requires more money than _____.A.have been put inB.being put in

C.has been put inD.to be put in

答案:C【参考译文】该实验还需要投入更多资金。【试题分析】本题为语法题,考查more„than这一结构的用法。【详细解答】在more„than这一结构中,than后面应跟动词原形,又因为主语是the experiment,所以谓语用单数,故选项C为正确答案。

50._______ for the fact that she broke her leg, she might have passed the exam.A.Had it not beenB.Hadn’t it been

C.Was it notD.Were it not

答案:A【参考译文】要不是摔断了腿,她可能会通过考试的。【试题分析】本题为语法题,考查对考虚拟语气的掌握。【详细解答】根据句意,此虚拟语气表示与过去事实相反,条件从句应用had+过去分词,又由于这里是省略了if而将had提前的部分倒装句,故选项A为正确答案。

51.“ What courses are you going to do next semester?”

“ I don’t know.But it’s about time _______ on something.”

A.I’d decideB.I decidedC.I decideD.I’m deciding 答案:B【参考译文】——下学期你打算修哪些课程?——还不知道。不过该是作决定的时候了。【试题分析】本题为语法题,考查对考虚拟语气的掌握。【详细解答】 It’s(about)time(that)„ 是虚拟语气句式,其谓语动词要用一般过去式,因此B项是正确答案。

52.The police have offered a large ________for information leading to the robbers arrest.A.awardB.compensationC.prizeD.reward

答案:D【参考译文】为了得到任何有助于逮捕抢劫者的信息,警方开出了一大笔酬金。

【试题分析】本题为名词词义辨析题。【详细解答】 award意为“奖品,奖金”;compensation意为“补偿金”;prize意为“奖品,奖赏”; reward意为“报酬,赏金”。根据句意,选项D为正确答案。

53.I arrives at the airport so late that I ______ missed the plane.A.onlyB.quiteC.narrowlyD.seldom

答案:C【参考译文】我赶到机场的时候已经迟了,仅此片刻之差就错过了飞机。【试题分析】本题为副词词义辨析题。【详细解答】 only意为“只不过,仅仅”; seldom意为“很少”,为频度副词;quite意为“完全,彻底”;narrowly修饰动词miss, lose等,意为“几乎,仅差一点”。

54.The popularity of the film shows that the reviewers’ fears were completely ______

A.unjustifiedB.unjustC.misguidedD.unaccepted 答案:A【参考译文】这部电影如此受欢迎,这说明影评家的担心是完全没有根据的。【试题分析】本题为形容词词义辨析题。【详细解答】unjustified意为“没有理由的”;unjust意为“不公正的”; misguided意为“误入歧途的”;unaccepted意为“不被接受的”。根据句意,选项A为正确答案.55.The head of the Museum was ____ and let us actually examine the ancient manuscripts.A.promisingB.agreeingC.pleasingD.obliging 答案:D【参考译文】博物馆长非常热心,带我们参观了古代的手抄本。【试题分析】本题为形容词词义辨析题。【详细解答】promising意为“有希望的,有前途的”;agreeing不是形容词,用法错误;pleasing意为“令人喜爱的,使人愉快的”;obliging意为“乐于助人的,恳切的”。根据句意,选项D为正确答案。

56.The multinational corporation was making a take-over _____ for a property company.A.applicationB.bidC.proposalD.suggestion

答案:B【参考译文】那家跨国公司正提议接管一家地产公司。【试题分析】本题为名词词义辨析题。【详细解答】 application意为“申请,请求”; bid意为“投票,报价”,make a bid for意为“出价买,企图获得”; proposal意为“提议”; suggestion意为“建议”。根据句意,选项B为正确答案。

57.The party’s reduced vote was ______ of lack of support for its policies.A.indicativeB.positiveC.revealingD.evident

答案:A【参考译文】该党选票减少表明它的政策不受支持。【试题分析】本题为形容词词义辨析题。【详细解答】 indicative意为“指示的,表明的”; positive意为“积极的”; revealing意为“暴露的,显露的”;evident意为“明白的,明显的”。根据句意,选项A为正确答案。

58.There has been a ______ lack of communication between the union and the management.A.regretfulB.regrettableC.regrettingD.regretted 答案:B【参考译文】令人遗憾的是工会和管理层之间一直缺乏沟通。【试题分析】本题为词语辨析题。【详细解答】A项regretful意为“遗憾的”,一般指某人;regrettable

意为“令人遗憾的,可惜的”; regretting和regretted为分词形式,不能修MAR AND VOCABULARY41.答案:A饰名词。故选项B为正确答案。

59.The teacher ________ expects his students to pass the university entrance examination

A.confidentially B.proudly C.assuredly D.confidently

答案:D【参考译文】这位老师满有把握地期待他的学生们通过大学入学考试。【试题分析】本题为副词词义辨析题。【详细解答】 confidentially意为“机密地,保密地”; proudly意为“自豪地”;assuredly意为“无疑地,一定”;confidently意为“确信地,有把握地”。根据句意,选项D为正确答案。

60.The ______ family in Chinese cities now spends more money on housing than before.A.normalB.averageC.usualD.general

答案:B【参考译文】中国城市的普通家庭在住房上的开销比以前要多。【试题分析】本题为形容词词义辨析题。【详细解答】 normal意为“正常的,标准的”; average意为“普通的,中等的”; usual意为“通常的”; general意为“一般性的,普遍的”。根据句意,选项B为正确答案。

61.The new colleague ____ to have worked in several big corporations before he joined our company.A.confessB.declaresC.claimsD.confirms

答案:C【参考译文】那位新同事声称他在进入我们公司之前在好几家大公司工作过。

【试题分析】本题为动词词义辨析题。【详细解答】confess意为“承认”;declare意为“宣布”;claim意为“宣称,声称”;confirm意为“确认,证实”。根据句意,选项C为正确答案。

62.During the reading lesson, the teacher asked students to read a few ______ from the novel.A.piecesB.essaysC.fragmentsD.extracts

答案:D【参考译文】在阅读课上,老师要求学生读小说的摘录。【试题分析】本题为名词词义辨析题。【详细解答】piece指“张,件”;essays指“论文”;fragments指“碎片,片断”; extracts指“摘录,选录”。根据句意,选项D为正确答案。

63.During the summer holiday season it is difficult to find a(n)_____ room in the hotels here.A.emptyB.vacantC.freeD.deserted

答案:B【参考译文】在暑假期间,旅馆里面是很难找到一间空房子的。试题分析】本题为形容词词义辨析题。【详细解答】empty指“空的”,强调房间里无物体;vacant意为“空着的,无人住的”;free指“免费的;空闲的”;deserted指“荒废的,(因被弃)无人住的”。根据句意,选项B为正确答案。

64.The old couple will never ______ the loss of their son.A.get overB.get awayC.get offD.get across

答案:A【参考译文】这一对老夫妇永远不能从失去儿子的痛苦中恢复过来。【试题分析】本题为动词短语词义辨析题。【详细解答】get over意为“痊愈,恢复”,指恢复健康、快乐等;get away意为“逃走”,常与from连用;get off意为“(使)不受惩罚,开脱”,常与with连用;get across意为“使人了解,使人明白”。根据句意,选项A为正确答案。

英语语法练习答案详解 篇2

SEFC教材Unit1 (Book 1) 中的练习主要是把直接引语变为间接引语或把间接引语变为直接引语。笔者发现, 许多学生在学完这一语法项目后, 不能准确地把直接引语变为间接引语或把间接引语变为直接引语, 尤其在人称变化、时态变化等方面存在着问题。根据这一现象, 笔者以改错或单选形式重新设计语法练习题, 突出了直接引语和间接引语的重点:连接代 (副) 词、语序、主句和从句时态一致等。例如:

(1) The woman told us that she doesn’t like American movies very much.

(2) Sarah’s friend asked Sarah that she was going to mail the gifts to her parents.

(3) I asked him how often did he go to visit his hometown.

以上三个例句突出反映了直接引语变间接引语时存在的问题。例 (1) 主句用过去式, 从句也要用相应的过去式, 所以“doesn’t”应改为didn’t。例 (2) 主句为asked, 所以从句应为疑问句, 连接词“that”应改为if或whether。例 (3) 连接词“how often”后应为陈述语序, 所以应改为:I asked him how often he wento visit his home town.

另外, 还可以把直接引语和间接引语练习改为单项选择形式, 让学生直接接触高考题型, 更好地掌握这一语法项目。例如:

Peter asked Jim_____________

A.What difference it made.

B.What difference does it make.

C.What difference it makes.

D.What difference did make.

答案为A项。

这样的语法练习题突出了直接引语变间接引语的重点:选择正确的连接词;从句用陈述句语序;主句和从句的时态一致。

区别异同

SEFC高一教材Book1中的Unit 4和Unit 5主要学习定语从句。定语从句的关键是理清关系代词和关系副词在从句中所作的成分及各自的用法;弄清tha和which的区别及限定性定语从句和非限定性定语从句的区别。但笔者认为书中定语从句的语法练习题, 在区别关系代词及关系副词异同方面涉及较少, 如果把定语从句语法练习题设计成侧重对比that which, when, where异同的改错或单选练习题, 能更好地帮助学生掌握定语从句。例如:

(1) I will never forget the days__________ I stayed in your beautiful country.

(2) September 18, 1931 is the day___________ we’ll never forget.

A.when B.in which

C.that D.for which

在例 (1) 中, 先行词the days在定语从句中作时间状语, 故选A项;在例 (2) 中, 先行词the day在定语从句中作forget的宾语, 故选C项。

创设语境

SEFC教材Book1中的Unit 7、Unit 8和Unit 9的语法以被动语态为主, 但笔者认为书中的被动语态练习题主要以被动语态的基本结构和用法的操练为主, 缺乏具体的语境和情景。所以在进行这一部分的练习时, 教师应从学生的实际出发, 提供一些通过具体语境来完成的练习, 改变学生死记硬背语法规则的习惯。如可以让学生做一些有具体语境的被动语态练习题:

(1) I have to go to work by taxi because my car_________ at the garage.

A.will be repaired B.is repaired

C.is being repaired D.has been repaired

(2) Visitors __________not to touch the exhibits.

A.will request B.request

C.are requesting D.are requested

句 (1) 的答案为C项, 句 (2) 的答案为D项。

英语语法练习答案详解 篇3

Ⅰ. 根据句意及所汉语提示,在空格上填上正确的单词。

1. Jim played a _________(小丑) in the play and did a good job.

2. Look! There is a water _________(滑梯). Let’s go and play there.

3. —Can you go to the park with me now?

—OK, but we can go there an hour later. It’s_________(不拥挤).

4. The boy caused a lot of _________(麻烦) to his parents.

5. I ________(想知道) why James is always late for school.

6. Don’t _________(混淆) Austria with Australia.

7. Jim put on his ________(发亮的) shoes and went out.

8. There was a _________(井) in our village. It’s said that it was dug in the 1940’s.

9. Please put your camera in the _________(小提箱里).

10. Please take the _________(旅行手册), or you’ll get lost.

11. Tina, have you packed your _________(毛巾) and toothbrush?

12. It’s dark in the room. Please _________(点燃) the fire for us.

13. He went to America ten years ago. But China is his ________(故乡), so he came back.

14. We often put the bowls, chopsticks and spoons in the ________(碗橱).

15. My uncle is a ________(农民). There used to be a lot of apple trees on his farm.

Ⅱ. 根據句意及首字母提示,在句子空格内填上正

确的单词。

16. —Would you like another cake?

—No, thanks. I’m f________.

17. In Brazil, you should w________ your mouth with your napkin every time you take a drink.

18. His c________ was to get up early and have a cold bath.

19. It is bad m_______ to make noise while eating soup.

20. It’s r_______ to point at others with your finger.

21. He has broken his leg and t________ he can’t walk.

22. You should make a l_______ before you go shopping.

23. Jim got up late this morning, so he m________ the early bus.

24. He thought of the success as a t________ point in his life.

25. Yu Dan’s new book will be a________ in the shops next month.

26. I have never seen a zoo that was s________ for animals to live in.

27. We u________ all of the students to leave school quickly after evening classes.

28. The animals are kept in t________ cages and can hardly move at all.

Ⅲ. 根据句意,用括号内所给单词的适当形式填空。

29. He had lost all __________(feel) in the left leg.

30. There are two _________ (knife) in Kate’s pencil case.

31. Most of the Americans use their cars __________(most) for their job.

32. The mother has never give up ________ (help) her disabled child.

33. Miss Gao has decided ____________ (have) an exam at the end of this week.

34. They are having their wedding at the hotel. It has the best ___________(light).

35. ________ (advertise) is one of the biggest businesses in America.

36. Please tell us the ________ (true) of the matter.

37. He is a good boy, don’t let bad companions________(lead) him.

38. Cattle _________(main) feed on grass and so do sheep.

39. It was _________(thank) to John that we won the game.

40. There are __________(thousand) of people in the supermarket on Sundays.

41. Xiamen is one of big cities in _________(south) China.

42. If fish are taken from the sea, there will soon benone________ (leave).

43. If we keep on ________(cut) down trees, forests will disappear.

44. Manatees usually _________ (weight) about 1000pounds.

45. Many rivers and lakes have become ________(pollute) in our countries.

46. I feel that there are few laws to stop people_________(put) the waste into rivers or into thesea.

Ⅳ. 根据句意,用方框内所给单词或词组的适当形式填空。

hand in magic drugstore trouble structure

dress up wonder hang out crowded lend

47. Yesterday I saw Jenny ________ in her mother’s clothes.

48. The market is ________. We can ride a bike to do some shopping now.

49. In the evening he and his wife often ________ in the park.

50. Can I ________ you to shut the door?

51. The man used ________ to produce six rabbits from his hat.

52. He ________ that book to me the day before yesterday.

53. He ________ why people built ugly homes,when they could have beautiful ones.

54. The teacher told us ________ our exercise books at the end of the lesson.

55. The biology teacher told us about the _______ of the brain today.

56. When you go to the ________, please buy some medicines for me.

◆语法专练

宾语从句

用适当的疑问代词或疑问副词填空。

1. I don’t decide _______ one I will choose.

2. Can you tell me ________ the film will begin?

3. Do you know ________ your friend is so worried?

4. He told me _______ he was reading a newspaper.

5. Could you tell me ______ is the man over there?

6. Do you know ________ CDs are these?

7. I don’t understand ________ you said just now.

8. Can you tell me _______ there’s a good place to eat?

9. Will you please tell me _______ I can get to the post office?

10. Can you show us ________ we can turn on the computer?

be supposed to“应该”

A)根据句意,用方框内所给动词的适当形式填空。

What are you supposed to do; I was supposed to;You’re supposed to

1. __________________________ when you visit a

friend’s house?

2. ___________________ when you are invited to a party?

3. _____________________ brush your teeth every time you finish a meal.

4. _____________________ when you have a bowl of rice in China?

5. _____________________ bow when I met someone for the first time in Korea.

B)根據所给汉语,用英语完成下列句子,每空一词。

6. 你不应该用筷子指着任何人。

You _______ _______ _______ point at anyone with your chopsticks.

7. 我们不应该在这里抽烟。

We’re _______ _______ _______ _______ here.

8. 她上课又迟到了,她应该向老师说对不起。

She is late for class again and she _________ _______ sorry to the teacher.

9. 当你被邀请参加聚会时,你应该做什么?

What are you ________ ________ _______ when you are invited to a party?

10. 在韩国,人们第一次见面时经常应该鞠躬。

In Korea, people _______ _______ _______ _______ when they meet for the first time.

动词时态

用所给动词的正确形式填空。

1. _______ you ________ (finish) ________ (read) thebook yet?

2. ________ you ever ________(be) to West China?

Great changes _______(take) place in West China inthe last few years.

3. By the time I _______(return) home yesterday, they _______ already _______(have) dinner.

4. Though he had often made his sister ______(cry),today he was made ______ (cry) by his sister.

5. He ______(meet) by my father as soon as he_______(arrive) last week.

6. I visited my uncle for a few days last week. When I _______(get) to his house, he _______(mend) a bike.

7. What _______ Tom _______(do) while his mother_______(cook) a meal yesterday evening?

8. The little boy _______(sleep). You’d better _______(not wake) him up now.

9. It’s your turn _______(speak). ______ you ______(get ) ready yet?

10. She _______ already _______(sing) several songs.

研英语语法练习及答案 篇4

2. Drather than起并列作用,使merciful与criminal形成平行结构,表示对比。

3. Anone but相当于no one but“只有”,通常接表示人的词;nothing but接表示物的词;none other than和no other than两者的意思都是“(不是别的)……正是……”,与本题全句意思不符。

4. Aas在句中是关系代词,引导非限定性定语从句,其先行词是precautions,其他几个选项都不是关系代词,所以是错误的。

5. Dwhat是关系代词,引导名词性从句,同时又在从句中充当一个成分,如在本句中做从句的主语,整个名词性从句做介词of的宾语;which只能引导形容词性从句;that引导名词性从句时,只是连词;whatever用在句中不通。

6. D时间状语thus far“到目前为止”,与现在完成时连用,据此排除B、C。比较从句完整的结构应该是…than the thought which has been given thus far,可以把than 看做关系代词在从句中做主语,也可以把主语看做是省略了。

7. A题句由于主语较长,采用了倒装结构,可还原为:the nation-wide movement to support the Kampuchean people in their heroic struggle against the aggression of the Vietnamese is of great significance。movement要求不定式做定语,其他选项均不符合语法规则。

8. Alooking for…分词短语做came的伴随状语,如果选to look for做目的状语的话,不该有逗号。

9. B动词request要求其主语从句、宾语从句或同位语从句中谓语动词用(should+)原形表示虚拟。该句中that引导的是主语从句。

考研英语语法练习题(含答案) 篇5

A. before B. until C. after D. since

2. He is off to Paris again tomorrow. He tells me that, with this journey, he ________ there and back twenty times.

A.will be B. will have been

C.will go D. will have gone

3. Many ways have been found_____small and simple machine to process large and complicated machine parts.

A. by using B. to use C. using D. used

4. I walked down the corridor, my footsteps_______frighteningly through the empty deserted building.

A. echoing B. echoed C. to echo D. having echoed

5. Apart from personal preferences, social context also affects―both directly and indirectly―the media and the media content to which you become exposed. For example, other members of the family often select media content that you _____, and you become exposed to it.

A. would not have selected B. should not have selected

C. must not select D. cannot have selected

1. Abefore应该理解成“(几百年过去了,人们) 才……”; 如果用after应该是…after centuries passed they took note of the fact…; 如果用until, 应该是they didn’t take note of the fact that…until centuries passed。

2. B此句意为:“他明天去巴黎,加上这次, 他就去了二十次了。”根据句意,应用将来完成时态。句中有back一词, 故D不合适。

3. Bto use…, 不定式短语做way的定语, 只是因为定语太长,故将谓语前移,使句子避免头重脚轻。by using表示方式, 做状语用; using为动名词, 不能做way 的定语, way要求不定式做定语; used, 无论从语法结构上还是从意义上都讲不通。

4. A分词短语做伴随状语, my footsteps与echo的关系是主动的,因此用现在分词。另外, 分词做伴随状语表示与谓语动词的动作同时发生, 所以用其一般式。

六级词汇语法考前训练答案与详解 篇6

31.答案A。?

【参考译文】这是他的最低价,他拒绝再降价了。?

【试题分析】近义词辨析。?

【详细解答】minus负的;small指面积、数量等“小的,少的”,不可表示价格,价格要用high(高)或low(低)来表示miniature微小的,缩小的?

32. 答案D。?

【参考译文】你若注意遵守交通规则,你就能把开车的危险降低到最低限度。?

【试题分析】词义辨析。?

【详细解答】minimize=casuse to diminish to the minimum,切合题意。maximize使增加到最大极限,与题意相矛盾;theorize用理论证明;standardize使标准化?

33.答案A。?

【参考译文】“这个星期末来告诉我你工作了多长时间,那时我会跟你结帐的”,他的雇主说。?

【试题分析】本题为词组意义辨析题。?

【详细解答】settle up结帐;draw up起草;work up激起(感情);come up走近、被提出。?

34. 答案C。?

【参考译文】 有些人把货物偷运到中国以逃避关税。?

【试题分析】本题是近义名词的辨析题。?

【详细解答】steal 偷, 窃取, 偷窃, 偷盗; transport 传送, 运输, 流放, 放逐; smuggle走私;import输入, 进口。只有smuggle符合题意。?

35. 答案D。 ?

【参考译文】为了组建政党,他正设法动员他能得到的.支持者。?

【试题分析】词义辨析。?

【详细解答】mobilize动员;paralyze使瘫痪,使麻木;mechanize使…机械化;standardize使…标准化。根据句意,D为最佳选择。?

36. 答案B。?

【参考译文】 店员的脏话冒犯了帕尔默先生。?

【试题分析】形近词辨析。?

【详细解答】nasty淫秽的,下流的,符合题意。tasty好吃的,美味的;misty有雾的,多雾的;muddy泥泞的?

37. 答案C。?

【参考译文】买套装时,十分钱的差价无关紧要。?

【试题分析】同根易混词辨析。?

【详细解答】negligible 和negligent是同根易混词,要注意区分,前者表示“微不足道的”,后者表示“疏忽的,粗心的,例如;Because the mechanic was negligent about fixing the brakes on her car,she was involved in a serious accident.ignorant无知的,不知道的;negative否定的?

38. 答案C。?

【参考译文】 当票价上升后,参加音乐会的人数减少了。?

【试题分析】本题为名词词义辨析题。?

英语语法讲座英语语法详解 篇7

1)主语:

To go or not to go is a question.

去还是不去是一个问题。

It is not easy to learn English well.

学好英语是不容易的。

2)宾语:

He decided to give up the job.

他决定放弃这项工作。

Tell me how to do it.

告诉我该怎样做。

3)表语:

My job is to look after the baby.

我的工作是照顾宝宝。

4)定语:

I have a lot of things to do.

我有很多事情要做。

5)状语:

He often comes to see us.

他常来看我们。

不定式还可构成复合宾语(即作宾语的补语):

She told me not to go out.

她让我别出去。

2.不定式有时不带to:

I saw a man enter the room.

我看见一个人进屋来了。

3.有时还有被动(a)完成(b)及进行形式(C):

a.She like to be praised.

她喜欢受人赞扬。

I was glad to have been invited.

受到邀请我很高兴。

b.I’m sorry to have given you so much trouble.

对不起给你添了这么多麻烦。

c.She seemed to be talking with somebody.

她似乎在和人谈话。

看过英语语法讲座的人还看了:

1.英语语法大全之16种时态讲解

2.英语语法讲解

3.英语语法讲解

4.英语语法辅导英语语法讲解

英语语法知识详解 篇8

Shall we meet again tonight? 咱们今晚要不要再碰碰头?

Shall they wait for you? 要不要他们等你?

2. 在陈述句中表示说话者的允诺、告诫、威胁、命令、规定、必然性等,主要用于第二、三人称。如:

You shall suffer for this. 你会为此事吃苦头的。(表威胁)

That day shall come.那一天一定会来。(表必然性)

You shall hear everything directly you come. 你一来就可听到所有情况了。(表允诺)

注:用于第一人称,则表示决心。如:

英语语法练习答案详解 篇9

图3 A.落到盘上的声音时间间隔越来越大 B.落到盘上的声音时间间隔相等

C.依次落到盘上的速率关系为1∶D.依次落到盘上的时间关系为1∶(∶∶2

-)∶(2-)

-1)∶(2、为了研究蹦床运动员跃起的高度,可在弹性网上安装压力传感器,利用传感器记录运动员运动过程中对弹性网的压力大小,并由计算机作出压力—时间图象(如图所示)。运动员在空中运动时可视为质点,则可依据传感器描绘的2F—t图象估算出运动员跃起的最大高度为(g取10m/s)

A.1.5m

B.1.8m

C.5.0m

D.7.2m

3、甲、乙两物体质量之比为m甲∶m乙 = 5∶1,甲从高H处自由落下的同时乙从2H处自由落下,不计空气阻力,以下说法错误的是()

A.在下落过程中,同一时刻二者速度相等

B.甲落地时,乙距地面的高度为H

C.甲落地时,乙的速度的大小为

D.甲、乙在空中运动的时间之比为1∶2

4、小球从靠近竖直砖墙的某位置由静止释放,用频闪方法拍摄的小球位置如图中1、2、3和4所示。已知连续两次闪光的时间间隔均为T,每块砖的厚度为d。由此可知小球

A.下落过程中的加速度大小约为B.经过位置3时的瞬时速度大小约为

C.经过位置4时的瞬时速度大小约为

D.从位置1到4过程中的平均速度大小约为

5、在地质、地震、勘探、气象和地球物理等领域的研究中,需要精确的重力加速度g值,g值可由实验精确测定。近年来测g值的一种方法叫“对称自由下落法”,它是将测g归于测长度和时间,以稳定的氦氖激光的波长为长度标准,用光学干涉的方法测距离,以铷原子钟或其他手段测时间,能将g值测得很准,具体做法是:将真空长直管沿竖直方向放置,自其中O点向上抛小球又落至原处的时间为T2,在小球运动过程中经过比O点高H的P点,小球离开P点至又回到P点所用的时间为T1,测得T1、T2和H,可求得g等于

A.

B.

C.

D.

6、在反恐演习中,中国特种兵进行了飞行跳伞表演。某伞兵从

静止的直升飞机上跳下,在t0时刻打开降落伞,在3 t0时刻以速度v2着地。伞兵运动的速度随时间变化的规律如图所示。下列结论不正确的是()A.在0 ~ t0时间内加速度不变,在 t0 ~ 3t0 时间内加速度减小 B.降落伞打开后,降落伞和伞兵所受的阻力越来越小

C.在t0 ~ 3t0的时间内,平均速度

D.若第一个伞兵在空中打开降落伞时第二个伞兵立即跳下,则他们在空中的距离先增大后减小

7、救灾人员从悬停在空中的直升机上跳伞进入灾区救灾,伞打开前可看作是自由落体运动,开伞后减速下降,最后匀速下落。在整个过程中,下列图像可能符合事实的是(其中t表示下落的时间、v表示人下落的速度、F表示人受到的合外力、h表示离地面的高度、E表示人的机械能)8、2013年6月8日,空降兵某部官兵使用新装备从超低空跳伞成功。若跳伞空降兵在离地面224 m高处,由静止开

2始在竖直方向做自由落体运动,一段时间后,立即打开降落伞,以12.5 m/s的平均加速度匀减速下降。为了空降兵

2的安全,要求空降兵落地速度最大不得超过5 m/s(g取10 m/s)。则()A.空降兵展开伞时离地面高度至少为125 m,相当于从2.5 m高处自由落下 B.空降兵展开伞时离地面高度至少为125 m,相当于从1.25 m高处自由落下 C.空降兵展开伞时离地面高度至少为99 m,相当于从1.25 m高处自由落下 D.空降兵展开伞时离地面高度至少为99 m,相当于从2.5 m高处自由落下

9、如图4所示,一个小球从地面竖直上抛。已知小球两次经过一个较低点A的时间间隔为TA,两次经过较高点B的时间间隔为TB,重力加速度为g,则A、B两点间的距离为()图4 A.B.C.D.10、一条悬链长7.2 m,从悬点处断开,使其自由下落,不计空气阻力。则整条悬链通过悬点正下方12.8 m处的一2点所需的时间是(g取10 m/s)()A.0.3s

B.0.54s C.0.7s

D.1.2s

11、科技馆里有一个展品,该展品放在暗处,顶部有一个不断均匀向下喷射水滴的装置,在频闪光源的照射下,可以看到水滴好像静止在空中固定的位置不动,如图2所示。某同学为计算该装置喷射水滴的时间间隔,用最小刻度为毫

2米的刻度尺测量了空中相邻三滴水滴间的距离,由此可计算出该装置喷射水滴的时间间隔为(g取10 m/s)()

图2 A.0.01s

B.0.02 s C.0.1s

D.0.2 s

12、人从发现情况到采取相应行动经过的时间叫反应时间。我们可以采用下面的实验测出自己的反应时间。请一位同学用两个手指捏住木尺顶端,你用一只手在木尺下部准备握住木尺;同学放开手时,你立即握住木尺,根据木尺下降的高度,可以算出你的反应时间。若某次测量中木尺下降了约11 cm,由此可知此次你的反应时间约为()

图1 A.0.2 s

B.0.15 s C.0.1s

D.0.05 s

13、对于自由落体运动,下列说法中正确的是

A.由静止开始下落的运动叫自由落体运动 B.物体刚下落时,速度和加速度都为零

C.在任意一段时间内,公式都适用

D.在任意一段路程内,公式都适用

14、从地面竖直上抛一物体A,同时在离地面某一高度处有一物体B自由下落,两物体在空中同时到达同一高度时速度大小均为v,则下列说法正确的是()A.A上抛的初速度与B落地时速度大小相等,都是2v

B.两物体在空中运动的时间相等

C.A上升的最大高度与B开始下落时的高度相同

D.两物体在空中同时达到的同一高度处一定是B开始下落时高度的中点

15、以下四个图像,能正确反映自由落体运动规律的是(g取10 m/s)()

2图8

16、关于自由落体运动(g=10 m/s),下列说法中正确的是()A.它是竖直向下,v0=0、a=g的匀加速直线运动 B.在开始连续的三个1 s内通过的位移之比是1∶3∶5 C.在开始连续的三个1 s末的速度大小之比是1∶2∶3 D.从开始运动到距下落点5 m、10 m、15 m所经历的时间之比为1∶2∶3

17、伽利略为了研究自由落体的规律,将落体实验转化为著名的“斜面实验”,对于这个研究过程,下列说法正确的是()2

图5 A.斜面实验放大了重力的作用,便于测量小球运动的路程 B.斜面实验“冲淡”了重力的作用,便于小球运动时间的测量 C.通过对斜面实验的观察与计算,直接得到自由落体的运动规律 D.根据斜面实验结论进行合理的外推,得到自由落体的运动规律

18、一物体自距地面高H处自由下落,经时间t落地,此时速度为v,则

()A.时物体距地面高度为 B.时物体距地面高度为

C.物体下落时速度为 D.物体下落时速度为

19、某晚,美军在伊拉克进行的军事行动中动用了空降兵,美机在200m高处超低空水平飞行,美兵离开飞机后先自

2由下落,运动一段时间后立即打开降落伞,展伞后美兵以16.5m/s的平均加速度匀减速下降。为了安全要求,美兵落地的速度不能超过5m/s(g=10m/s)。伊方地面探照灯每隔10s扫描一次,通过计算判断美兵能否利用探照灯的照射间隔安全着陆。

20、如下图所示,跳伞员从350 m的高空自由下落一段距离后才打开伞.设打开伞后以2 m/s的加速度减速下降,到达地面时的速度为4 m/s,求他下降的总时间及自由下落的距离.

参考答案

一、选择题

1、B 垫圈之间的距离分别为12 cm、36 cm、60 cm、84 cm,满足1∶3∶5∶7的关系,因此时间间隔相等,A项错误,B项正确。垫圈依次落到盘上的速率关系为1∶2∶3∶4∶„,垫圈依次落到盘上的时间关系为1∶2∶3∶4∶„,C、D项错误。

2、C 【解析】

试题分析:当蹦床的压力为0时,即运动员在空中,当再次出现压力时,说明运动员再次落回蹦床,观察图像,从离开蹦床到落回蹦床,运动员在空中运动时间最长为为2s,此时上升的高度最高。根据上升下降的对称性,下降的最长时间为,最大高度,对照选项C对。

考点:竖直上抛运动

3、D

4、C

5、A

6、C

7、B

8、C 设空降兵做自由落体运动的高度为h时速度为v,此时打开伞开始匀减速运动,落地时速度刚好为5 m/s,这

222种情况空降兵在空中运动时间最短,则有v=2gh,vt-v=2a(H-h)解得h=125 m,v=50 m/s,为使空降兵安全着地,他展开伞时的高度至少为H-h=224 m-125 m=99 m,选项A、B错误;他以5 m/s的速度着地时,相当于从h′高处自由落下,由vt=2gh′,得h′=

2=m=1.25 m,选项D错误,C正确。

9、D 设小球上抛的最高点距A点的距离为hA,距B点的距离为hB,根据竖直上抛运动规律,hA=g(),hB=

2g(),A、B两点间的距离为hA-hB=

2,选项D正确。

10、B 设链条的长度为L,经t1链条的下端经过该点,经t2链条的上端经过该点,则h=t=t2-t1;解得Δt=0.54 s;选项B正确。

2-2

gt12,h+L=gt22,Δ

11、C 自上而下第一、二和三点之间的距离分别为x1=(10.00-1.00)×10m=9.00×10m,x2=(29.00-10.00)×10m=19.00×10m,根据公式Δx=aT得x2-x1=gT,故T=-2-22

2= s=0.1 s。

12、B 由h=

13、C gt2,可得:t=≈0.15 s,故选B。

二、多项选择

14、AC

15、BD 自由落体运动的速度与时间成正比,位移与时间的二次方成正比,选项B正确,A、C错误。由v=2gx,速度的二次方与位移x成正比,选项D正确。

16、ABC 自由落体运动是竖直向下,v0=0、a=g的匀加速直线运动;根据匀变速直线运动规律,在开始连续的三个1 s内通过的位移之比是1∶3∶5;在开始连续的三个1 s末的速度大小之比是1∶2∶3;从开始运动到距下落点5 m、10 m、15 m所经历的时间之比为1∶

∶,选项A、B、C正确,D错误。

217、BD “斜面实验”中小球运动的加速度较小,便于运动时间的测量,A错误、B正确;斜面倾角增大到90°时,斜面运动外推为自由落体运动,C错误、D正确。

18、BD 解析 由于物体自由下落,所以v0=0,H=gt2 所以h′=正确. g()2=,距地面为H,选项B正确.根据v2=2gH及v′2= 2g·知v′=v,选项D

三、计算题 19、20、答案:18.6 s;59 m 解析:设跳伞员自由下落h距离时速度为V 则由题意可知

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