备战2010高考：情态动词精讲精练

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I 情态动词的定义

情态动词是一种本身有一定的词义，表示说话人的情绪、态度或语气的动词，但不能单独作谓语，只能和其他动词原形构成谓语。

情态动词数量不多，但用途广泛，主要有： can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) .

II 情态动词的位置

情态动词在句中放在谓语动词之前，谓语动词前若有助动词，则在助动词之前，疑问句中， 情态动词放在主语之前。

? ? ? ?

I can see you. Come here. 我能看见你，过来吧。 He must have been away. 他一定走了。 What can I do for you? 你要什么？

How dare you treat us like that! 你怎么敢那样对待我们!

Ⅲ 情态动词的语法特征

1） 情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。 2） 情态动词除ought 和have 外，后面只能接动词原形。

3） 情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。 4） 情态动词没有非谓语形式，即没有不定式，分词，等形式。 Ⅳ 情态动词的用法 A. can; could; be able to can

1. 表示―能力‖(此时过去时是could) What can you do?

2. 表示许可、请求，“可以”。 在口语中，can可以代替may表示许可，而may比较正式。（此时用could或might语气更委婉） --Can/Could I go now? --Yes, you can.

3 表示推测（否，疑），把握很大,could也可表推测（肯，否，疑）,把握比can小。 --Look! Someone is coming! Who can it be? --It can‘t be him. He has gone to Paris.（不可能）

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 He could be here soon. 他很快就来。

4 表示感情（惊异/不耐烦）―究竟，到底‖（主要用于否定句，疑问句和感叹句中。） How can you be so foolish?

What can it possibly be? 到底那是怎么一回事? They can‘t be working at this time of day.

5 肯定句中客观存在的可能性。―有时会，偶尔‖

It can be quite windy there, especially in spring.

Could

1.表示能力， can 的过去式，过去能够

Could you speak English then? 那时候你会说英语吗?

Looking down from the plane, we could see lights on the runway. 从飞机上向下看，我们可以看见机场跑道上的点点灯火。

2. 请求允许（委婉语气）（问句的答语不用could，而用can，） Could [Can] I use your pen? ‖ ―Yes, of course you can.‖/ No, I‘m afraid not. 3. 表示推测可能性（肯，否，疑）

We could go there this summer. 今年夏天我们可能要去那儿。(将来可能性)

You could be right, but I don‘t think you are. 你可能是对的，但我并不认为你是对的。(现在可能性) 4. could have done ①对过去推测，可能已经。。。

②本来能够却没做，差点就

He can‘t [couldn‘t] have seen her there. 他不可能在那儿见到她。 He could have gone home. 他可能已回家了

He could have told her, but he didn‘t choose to. 他本来可以告诉她的，但他却没有。 You could ask me before you use my phone. 你打电话之前本来可以问我一声。 I was so angry I could have killed him. 我是那样生气，差点把他杀了。

☆ can 和 be able to 都可以表示能力，意思上没有区别，但can 只有现在式和过去式(could)，而be able to 则有更多的形式。

过去时：were/was able to 将来时：will/shall be able to 完成时：have /has been able to

★ 如果要表达将来的能力时，一般要用 will/shall be able to．

?

No one is able to do it.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 ? ?

We shall be able to finish the work next week. I haven‘t been able to finish the book

☆Could与 was/ were able to的区别：could 只表有能力， was/were able to 意含‖过去某时经过努力设法做成了某事‖, 还可以表示结果

They worked hard, so they were able to do more for the company. He could cure the old man‘s illness. (能治好) He was able to cure the old man‘s illness. (治好了) B. may 和 might

may （过去式might）

1.表示允许﹑许可，might提问更委婉。口语中可用can/ could.

?

---May/Might I watch TV after supper? ---Yes, you may./ Yes, please./ Certainly.

---No, you mustn't. / No, you may not. / No, you can‘t. --- No, you‘d better not.

2. 表示推测(肯，否)，有―或许‖、―可能‖的意思。might把握更小。疑问句用can/ could

? ? ? ?

He may be right.

I hear there may be a few copies left. He may come today (tomorrow). He might come today (tomorrow).

3. 表示祝愿，倒装。 May you succeed!

May you have many more days as happy as this one. might 1. may 的过去式

He said that I might borrow this book. 2. 许可(委婉语气) Might I ...

3. 表示推测（肯，否） “或许”“可能”把握比may小。疑问句用can/could He might get there in time, but I‘m not sure.

☆may [might] (just) as well…

意为―不妨‖、―还是…为好‖等，用 might 比用 may 语气更委婉。如： I‘m ready，so I might as well go now．我已准备好，因此不妨现在就走。

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 There‘s nothing to do, so I may [might] as well go to bed. ☆may well... 完全可能

C. must, have to must 1. must 表示―必须‖。否定式must not (mustn‘t)表示―不应该‖、―不许可‖、―不准‖、―禁止‖等。

? ? ? ?

Everybody must obey the rules.

The work must be finished as soon as possible. You mustn‘t lend it to others.

You mustn‘t speak like that to your mother.

☆在回答有―must‖ 的询问时，否定式常用need not (needn‘t) / don‘t have to表示―不必‖, 而不用must not, 因为must not 表示―禁止‖“不可以”

--- Must I go now? --- Yes, you must.

---No, you needn‘t. / No, you don‘t have to.

2. must 表示推测（―一定‖、―必定‖），只用在肯定句中, 其否定形式为can‘t，表示“不可能”

? ?

You must be hungry after the long walk.

The Chinese language must have the large number of speakers.

3．must 表示说话人不耐烦的态度，“干嘛偏要”

☆ must + have + done，表示对过去事物的肯定推测。 ―一定做过...‖ He must have told my parents about it. 他一定把这件事情告诉我父母亲了。 ☆ must表示推测时，其反意疑问句应根据动词的实际时态而变化。如：

? ?

It must be nice to take a walk here, isn‘t it?

Tom buys a lot of apples ,he must like eating them, doesn't he？

Must have done 的反意疑问句有三种情况:

①从句中含有过去的时间状语,反意疑问句用过去时. ?

The ground is wet , it must have rained last night, didn‘t it? ②从句中含有过去完成时的时间状语,反意疑问句用过去完成时. ?

By the end of last term, we must have learnt 2000 words, hadn‘t we? ③若从句中不含任何时间状语,反意疑问句用现在完成时 ?

We must have been met somewhere (before), haven‘t we?

☆must 表示―必须‖ ―有必要‖时，反义疑问句部分用mustn‘t...? 或 needn‘t ...? You must go home right now, needn‘t you? 选校网 www.xuanxiao.com 专业大全 历年分数线 上万张大学图片 大学视频 院校库

选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 ☆must 用否定形式 mustn‘t时，附加疑问句部分用may或must…?

You mustn‘t cheat in the examination, must you? 3. 表示与说话人愿望相反及不耐烦．意为―偏要‖．

-____you make so much noise? （A） -Sorry, I will take care not to.

A Must B Can C May D Would

4. must 和 have to 的区别: must 表示说话人的主观看法, have to ―不得不, 必须‖，表示客观需要、客观条件只能如此。have to 比 must 有更多形式。mustn‘t表示―决不能，禁止，一定不要‖，而don‘t have to表示―不必要‖．（英国英语常用needn‘t) .

? ? ? ?

I don‘t like the TV set. I must buy a new one. （主观看法） The TV set is broken. I have to buy a new one. （客观需要）

He had to spend his childhood in hard work, helping his father on their small farm. You will have to do it again。(将来)

D. ought to/ should/ shall ought to ought to用于反映客观情况或涉及义务和规定时，常译作―应该‖、―应当‖(和should差不多， 只是语气较强)，有时表示非常可能的事情。

? ? ?

There ought not to be much noise in a hospital. --- Ought he to go? --- Yes, he ought to.

If she is completely well, she ought to be back at school today.

ought to have done指过去动作,表示一件事情该做而未做。 ought not to have done 表示一件不该做的事情却做了。 should 1.用于表示劝告和建议，―应该‖．表示自己的主观看法,语气比ought to弱。 You should keep your promise.

☆ should + have done 指过去动作,表示一件事情该做而未做。

should not + have done 表示一件不该做的事情却做了。 --- Who did it sound like? Anybody you know?

--- Well, perhaps Jeff. I should have asked who was calling before he hung it up. 2.表推测，“按道理，按常理应该”

They should have arrived by two o‘ clock.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 3.表示惊讶,赞叹，不满，责备 ―竟然‖

I am sorry that you should do such a thing.

4. 用于if引导的虚拟条件句中，表示一件事听起来可能性小，但也不是完全不可能。有―万一‖的意思

Should I be free tomorrow, I‘ll come Ask Tom to ring me up if you should see him. shall 1. shall 作为情态动词，用于第二、第三人称，陈述句，表示说话人的意愿，有―命令‖、―警告‖、―威胁‖、―强制‖、―允诺‖等意思。―必须，应，可以‖．

? You shall do as I say. （命令）

? Tell him that he shall have the book tomorrow. （允诺） ?

You shall be punished if you break the law. (表警告)

2. 用于第一、第三人称, 在疑问句中，shall 用来征询对方意见。“……好吗？”“要不要……？”

? Where shall I wait for you? ? Shall he come at once? ?

Shall we start the meeting now?

3.在条约﹑规定﹑法令等文件中表示义务或规定，用于第三人称 The new regulation shall take effect on June 1st E. will 和 would will (1) will 表示―意志‖、‖决心‖ 、―意愿‖，可用于多种人称。will 指现在，would 指过去。

? I will tell you all about it. ?

He won‘t go.

(2) will 在疑问句中用语第二人称时，表示询问对方的意愿或向对方提出请求.委婉语气would

? I‘m going to go shopping after school. Will you go with me? ?

Will you please give him a message when you see him?

(3) 表示习惯动作，有―总是‖、―惯于‖的意思。过去式would He‘ll talk for hours if you give him the chance. (4) 表示功能，―能‖

The door won‘t open. / The car won‘t start. (5)用于叙述真理,客观规律时“会”

Oil will float on water. / Fish will die without water.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 would

(1) Would是will的过去式，表示过去时间的―意愿‖、―愿望‖，用于多种人称。

? ?

They said that they would help us. I promised that I would do my best.

(2) 表示说话人的意愿或向对方提出请求，语气比will 委婉。指的是现在时间。

? ? ? ?

Would you like some bananas? I‘d like to see your new bicycle.

--- Would you like to see a film? --- Yes, I‘d like to. --- Thanks. I‘m afraid not. / I‘m afraid I won‘t be able to.

(3) 表示过去的习惯动作。

? ?

She would sit like that for hours.

Everyday she would get up at six o‘clock and light the fire.

☆would和used to区别：Would ―过去常常‖可用来表示过去反复出现的动作，但不能表示过去存在的状态，所以，不能说：She would be a quiet girl. Used to 则着眼于过去和现在的对比，隐含“现在已不复如此”之意，动作或状态都可表示．She used to be a girl.

When young, he would go out for a trip on Sundays. (Now maybe still does)

?

When young, he used to go out for a trip. (But now he doesn‘t)

Near the village, there _____ be a stream. （B） A. would B. used to F. need 和 dare

1. need 表示―需要‖、―必须‖。通常用在否定句或疑问句中。

? ?

He needn‘t pay for it.

--- Need you go now? --- Yes, I must. --- No, I needn‘t.

2. dare 表示―敢‖。通常用于否定句、疑问句、条件从句和if/whether 引出的宾语从句中。

? ? ?

How dare you say I‘m unfair? She dare not do so.

He asked me if I dared speak English in public.

☆ need 和 dare 也可用作行为动词，变化与一般动词相同

? ?

She didn‘t need to go.

--- Who dares to go? - -- I don‘t dare (to) go.

☆ I dare say …作插入语,我想, 大概, 可能, 或许

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 ☆ ―needn?t + have done‖ 表示过去做了没必要做的事情。 You needn't have taken it seriously.

这件事情你不必太认真。 G. had better/ had best ―最好‖，如： — We had better go now.

— Yes, we had (we'd better / we had better).

Hadn't we better stop now? (Had we better not stop now?) I think I'd better be going. （用于进行时态，表―最好立即‖） You had better have done that. （用于完成时态，表未完成动作）

注：①had best与had better同意，但较少用。②You had better … 用于同辈或小辈，对长辈不可用 Ⅵ 情态动词+ have done

must have done,―一定做过/一定已经．．．‖，表示对过去情况极大把握地推测，仅用于肯定句 may/might have done 也许做过某事 may/ might not have done 也许没做过某事(之用肯、否) might have done 本来可以做某事却没做

can与have done 连用时, 为否定句或疑问句,对过去的推测“不可能，一定没做过某事” could have done本来可以做某事却没做

needn‘t have done 表示‖本来不必做(却做了)‖而needn‘t do 则表示‖不必做(也没做)‖ ought to /should have done 表示‖本来应当做的却没做‖ oughtn‘t / shouldn‘t have done 本来不应该做某事却做了

would/could/might/should + have done 用来表示与过去事实相反的虚拟语气

would rather have done 表示‖当时宁愿做了某事‖，否定形式：would rather not have done

e.g. If I had been free that day, I would have gone with you.

would like/love to have done 表示‖ 本想做某事‖ 而实际上未做。

情态动词+be doing 表示根据推测，现在正在进行或可能正在进行的动作。 Eg. His mother must be waiting at the school gate. 情态动词+be done 表示现在或将要发生的被动的动作。 Men must not be judged by their looks.

情态动词+have been done 表示对过去已经发生的被动动作的猜测，有时含有指责，抱怨等不满的情绪。 I can‘t find my recorder . it may have been taken away by someone.

情态动词+have been doing 表示根据猜测，从过去到现在一直在进行的动作，具有“应该一直在??”或“想必一直在??”等意思。

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 They may have been discussing the problem this morning .

( ) 1. You ____ return the book now. You can keep it till next week if you like. A. can’t B. mustn’t C. needn’t D. may not ( ) 3. I wish I ___you yesterday. A. seen B. did see C. had seen D. were to see ( ) 4. I didn’t hear the phone. I _____ asleep.

A. must be B. must have been C. should be D. should have been ( ) 5. If my lawyer _____ here last Saturday, he _____ me from going. A. had been; would have prevented B. had been; would prevent C. were; would prevent D. were; would have prevented ( ) 6. He _____ you more help, even though he was very busy.

A. might have given B. might have C. may have given D. may give ( ) 7. If it _____ for the snow, we _____ the mountain yesterday. A. were not; could have climbed B. were not; could climb C. had not been; could have climbed D. had not been; could climb ( ) 8. Without electricity human life _____ quite difficult today.

A. is B. will be C. would have been D. would be ( ) 9. A computer _____ think for itself, it must be told what to do.

A. can’t B. couldn‘t C. may not D. might not ( ) 10. Jenny _____ have kept her word. I wonder why she changed her mind. A. must B. should C. need D. would ( )11. We _____ last night, but we went to the concert instead.

A. must have studied B. might study C. should have studied D. would study ( ) 12. — Could I borrow your dictionary? — Yes, of course you _____. A. might B. will C. can D. should ( ) 13. Tom ought not to _____ me your secret, but he meant no harm. A. have told B. tell C. be telling D. having told

( ) 14.If he _____, he _____ that food.— Luckily he was sent to the hospital immediately.

A. was warned; would not take B. had been warned; would not have taken C. would be warned; had not taken D. would have been warned; had not taken ( ) 15. Peter _____ come with us tonight, but he isn‘t very sure yet.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 A. must B. may C. can D. will ( ) 16. I told Sally how to get here, but perhaps I _____ for her.

A. had to write it out B. must have written it out C. should have written it out D. ought to write it out

( ) 17. I didn‘t see your sister at the meeting. If she _____, she would have met my brother.

A. has come B. did come C. came D. had come ( ) 18. — Shall I tell John about it?— No, you _____. I’ve told him already. A. needn’t B. wouldn’t C. mustn’t D. shouldn’t ( ) 19. When a pencil is partly in a glass of water, it looks as if it _____. A. breaks B. has broken C. were broken D. had been broken ( ) 20. It’s nearly seven o’clock. Jack _____ be here at any moment.

A. must B. need C. should D. can 典型例题

1、The teacher __________ have thought Johnson was worth it or she wouldn‘t have wasted time on him, I suppose. A. should B. can C. would D. must 2、30. –May I smoke here?

- If you ____, choose a seat in the smoking section. A. should B. could C. may D. must

3、__________ fired, your health care and other benefits will not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 4、-- Must he come to sign this paper himself? -- Yes, he .

A. need B. must C. may D. will 5、As you worked late yesterday, you_________ have come this morning. A.mayn‘t B.can‘t C.mustn‘t D.needn‘t 6、 — Could I have a word with you, mum? — Oh dear, if you _______.

A. can B. must C. may D. should 7、—What does the sign over there read?

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 —―No person _________ smoke or carry a lighted cigarette, cigar or pipe in this area.‖ A. will B. may C. shall D. must

8、We ______ have proved great adventurers, but we have done the greatest march ever made in the past ten years. A. needn‘t B. may not C. shouldn‘t D. mustn‘t

9、24. The weather turned out to be fine yesterday. I the trouble to carry my umbrella with me. A. should have taken B. could have taken C. needn't have taken D. mustn't have taken

10、32.Some aspects of a pilot‘s job__________be boring, and pilots often____________work at inconvenient hours. A.can;have to B.may;can C.have to;may D.ought to;must

11、I told your friend how to get to the hotel, but perhaps I have driven her there. A. could B. must C. night D. should 12、—What's the name?

— Khulaifi. _______ I spell that for you?

A. Shall B. Would C. Can D. Might

13、Black holes ______ not be seen directly, so determining the number of them is a tough task. A. can B. should C. must D. need

14、In crowded places like airports and railway stations, you__________ take care of your luggage. A. can B. may C. must D. will 15、－She looks very happy. She_________have passed the exam. －I guess so. It‘s not difficult after all.

A.should B.could C.must D.might 16、 ---Turn off the TV, Jack. ____ your homework now? ---Mum, just ten more minutes, please.

A. Should you be doing B. Shouldn't you be doing C. Couldn't you be doing D. Will you be doing

17、—Where is my dictionary? I remember I put it here yesterday. —You it in the wrong place.

A. must put B. should have put C. might put D. might have put

18、10. We hope that as many people as possible join us for the picnic tomorrow. A. need B. must C. should D. can 19、--- I think I‘ll give Bob a ring.

--- You _______. You haven‘t been in touch with him for ages.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 A. will B. may C. have to D. should 20、If it were not for the fact that she_______sing, I would invite her to the party. A.couldn‘t B.shouldn‘t C.can‘t D.might not 21、-Is Jack on duty today?

-It ______ be him. It‘s his turn tomorrow. A.mustn‘t B.won‘t C.can‘t D.needn‘t

22、The biggest problem for most plants, which ________ just get up and run away when threatened, is that animals like to eat them.

A. shan‘t B. can‘t C. needn‘t D. mustn‘t 23、--- Guess what! I have got A for my term paper.

--- Great! You ______ read widely and put a lot of work into it.

A. must B. should C. must have D. should have 24、—What do you think we can do for our aged parents？

—You_________ do anything except to be with them and be yourself. A. don‘t have to B. oughtn‘t to C. mustn‘t D. can‘t

25、You know he is not going to let us leave early if we ___ get the work done. A. can't B. may not C. shouldn't D. mustn't 26、There's no light on—they______ be at home.

A. can't B. mustn't C. needn't D. shouldn't 27、When I was young, I was told that I ______ play with matches A. wouldn‘t B. needn‘t C. mustn‘t D. daren‘t

28、John promised his doctor he _____not smoke, and he has never smoked ever since. A. might B. should C. could D. would

29、It is usually warm in my hometown in March, but it ________be rather cold sometimes. A. must B. can C. should D. would

30、 You don't have to know the name of the author to find a book. You find the book by the title. A. must B. need C. can D. would 31、—I‘m sorry. I ______ at you the other day. —Forget it. I was a bit out of control myself.

A. shouldn‘t shout B. shouldn‘t have shouted

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 C. mustn‘t shout C. mustn‘t have shouted

32、What a pity. Considering his ability and experience, he ____ better. A. need have done B. must have done C. can have done D. might have done

33、 Liza ___ well not want to go on the trip --- she hates traveling. A. will B. can C. must D. may

34、 Thank you for all your hard work last week. I don‘t think we ____ it without you. A. can manage B. could have managed C. could manage D. can have managed 35、 --What sort of house do you want to have? Something big? --Well, it be big--that‘s not important. A. mustn‘t B. needn‘t C. can‘t D. won‘t

36、 Although this ____ sound like a simple task, great care is needed. A. must B. may C. shall D. should

37、 You ______ be hungry already — you had lunch only two hours ago! A. wouldn‘t B. can‘t C. mustn‘t D. needn‘t

38、 Peter _______________be really difficult at times even though he‘s a nice person in general． A．shall B．should C．can D．must

39、 According to the air traffic rules, you ______________switch off your mobile phone before boarding． A．may B．can C．would D．should 40、 She ______________have left school, for her bike is still here． A．can‘t B．wouldn‘t C．shouldn‘t D．needn‘t 41、—I can‘t find my purse anywhere．

—You _______________have lost it while shopping． A．may B．can C．should D．would 参考答案与解析： 1. D

解析:―must have +动词+ed形式‖表示―一定做了某事‖。根据所提供的情景or she wouldn‘t have wasted time on him可判断出老师一定认为Johnson值得教，要不她不会在他身上浪费那么多时间。―should have +动词+ed形式‖表示―本来应该做某事，而没有做‖，常用于表示责备。―can have +动词+ed形式‖表示―可能做了某事‖。would用于表示虚拟、假设、条件等，有―要、将要、会、就会‖等意思。 主要考察知识点：情态动词

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 2、D

解析：本题要根据前后句的关系来判断。问句：―我能在这里抽烟吗？‖―如果你一定要抽，应该坐在抽烟区‖。must在这里表示主观原因。should是应该的意思；could表示可能；may是可以。 主要考察知识点：情态动词 3、B

解析：这道题是虚拟条件句的倒装。虚拟条件句的从句部分含有were, should, 或had时, 可省略if，再把were, should或had 移到从句的句首，实行倒装。意思是―即使你被解雇了，医疗保障和其他福利也不会受到影响‖ 主要考察知识点：情态动词 4、 B

解析：must引导的一般疑问句，答复如果是肯定的，用must，如果是否定的，用needn‘t。 主要考察知识点：情态动词 5、D

解析：―needn‘t have + 动词+ed形式‖表示过去做了没必要做的事情。根据所提供的情景as you worked late yesterday可判断出今天早上没有必要来这么早。―can‘t have + 动词+ed形式‖表示―过去不可能‖，表示对过去发生的动作的猜测。mustn‘t不与have + 动词+ed形式连用，只与动词原形连用，表示―禁止，不准‖。主要考察知识点：情态动词 6、B

解析：must表示一定要，主观愿意。can表示有能力；may表示可能；should表示应该。由于是想和妈妈说话，所以用must。

主要考察知识点：情态动词 7、C

解析：shall在陈述句中用于第二人称或第三人称，表示说话者的意志、命令、约定、决心、警告、威胁、预言等，意为―必须，应该，要，得，给‖，表示任何都不准在这个区域吸烟或携带点着的香烟、雪茄或烟斗。will表示现在的意志、愿望等，意为―要，希望‖；may表示许可，或用于请求许可，意为―可，可以‖；must意为―必须,要,应当‖。 主要考察知识点：情态动词 8、 B

解析：―may not + have + 动词 + ed形式‖，意为―不可能‖，用于对过去或已经发生的事进行猜测。―needn‘t have + 动词+ed形式‖表示―不需要‖，表示过去不需要做某事。―shouldn‘t + have + 动词+ed形式‖表示本来不应该做而做了某事。mustn‘t不与have + 动词+ed形式连用，只与动词原形连用，表示―禁止，不要‖。 主要考察知识点：情态动词 9、 C

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 解析：天气转晴了，所以就不用带伞了。Needn‘t have taken the trouble是不必要，should have taken the trouble是应该；could have taken the trouble是可能；mustn‘t have taken the trouble是必须不，都与题意不符。 主要考察知识点：情态动词 10、A

解析：can表示可能性，意为―可能‖，表示飞行员的工作在一些方面可能是枯燥乏味的。have to意为―不得不‖，表示由于受客观条件的限制不得不做某事。表示飞行员不得不在不方便的时间进行工作。 主要考察知识点：情态动词 11、D

解析：―should+have+动词+ed形式‖意为―本来应该做某事而没有做‖。根据所提供的情景―I told your friend how to get to the hotel,but perhaps‖可判断出本来应该用车把她带到这里。―could+have+动词+ed形式‖意为―本来能够做某事‖。 ―must+have+动词+ed形式‖意为―一定做了某事‖。 ―might+have+动词+ed形式‖意为―可能已经做了某事‖。 主要考察知识点：情态动词 12、A

解析：shall意为―……吗；……好吗；叫……好吗；是不是想……‖，用于征求对方的同意或意见。would用于第二人称，表示―愿意‖。can用于征得对方的同意，意为―可以，可能‖。might用于征得对方的同意，意为―可以‖，用于疑问句和建议时比may更委婉和礼貌。 主要考察知识点：情态动词 13、A

主要考察知识点：情态动词 14、C

解析:must意为―应该,必须,一定‖,表示出于主观意识而必须要做某事。根据所提供的情景―in crowded places like airports and railway stations‖可判断出在拥挤的地方像飞机场和火车站必须看管好自己的行李。can意为―能,会‖,用于表示能力。也可表示可能性,意为―(可)能,会得，(偶然,有时)会‖。may意为―或许,也许,可能,也说不定‖,表示可能性。will构成一般将来时,作情态动词的意思是―要,希望‖,用于表示现在的意志愿望等。 主要考察知识点：情态动词 15、C

解析:―must have+动词-ed形式‖表示―一定做了某事‖,根据所提供的情景―She looks very happy.‖可判断出她一定通过了考试。―should have+动词-ed形式‖表示―本来应该做某事,而没有做‖,常用于表示责备。―could have+动词-ed形式‖在肯定句型中,往往用作委婉地批评，表示本应该做什么,而没做，有时也用作猜测。―might have+动词-ed形式‖表示推测过去做过某事，―也许‖发生了。 主要考察知识点：情态动词

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 16、B

解析:Shouldn‘t you be doing your homework now?表示―难道你现在不应该做作业吗？‖是一种责备的口吻。根据答语，应选B项。Should you be doing your homework now?表示―你现在应该做作业吗？‖暗示现在不应该做作业。所以是错误的。 主要考察知识点：情态动词 17、 D

解析：―might have +动词+ed形式‖表示过去可能完成的动作。根据所提供的情景Where is my dictionary? I remember I put it here yesterday.可判断出把词典放在某个地方发生在过去，所以要用―might have +动词+ed形式‖。―should have + 动词+ed形式‖表示―(过去)本来应该做某事‖。must意为―一定‖，是肯定的推测，与所提供的情景的矛盾。might put表示现在发生的事。

主要考察知识点：情态动词 18、D

解析：can表示可能性，意为―能够‖，希望尽量多的人能够参加明天的野餐。need意为―需要‖，表示需要或有必要做某事。must意为―必须‖。should意为―应该‖。 主要考察知识点：情态动词 19、D

解析：should意为―应该‖，多表示某事宜做、应当做或必须做，强调主观方面，用得多一些。根据所提供的情景You haven‘t been in touch with him for ages.可判断出由于多年没有联系，应该给Bob打电话。will意为―将‖。may意为―可以‖。have to意为―不得不‖，表示因客观原因不得不做某事。 主要考察知识点：情态动词 20、 C

解析：fact后接that引导的同位语从句，用于对其作进一步的解释。她不会唱歌是一个事实，所以要用陈述语气。can‘t意为―不会‖，表示不具备某种能力。 主要考察知识点：情态动词 21、 C

解析：can‘t表猜测，意为―不可能‖。根据所提供的情景It‘s his turn tomorrow.可判断出Jack明天值日，所以今天不可能是Jack值日。needn‘t表示不必；won‘t表示将来不会；mustn‘t表示必须不，禁止。 主要考察知识点：情态动词 22、 B

解析:can‘t意为―不能‖。根据常识可判断出植物不会站起来和逃跑。故选B项。shan‘t 是shall的否定形式,作情态动词在陈述句中用于第二人称或第三人称,表示说话者的意志、命令、约定、决心、警告、威胁、预言等,意为―不应该,不要‖。needn‘t 意为―不需要‖。mustn‘t 意为―不准,禁止‖。

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 主要考察知识点：情态动词 23、 C

解析：―must have + 动词+ed形式‖表示―一定做了某事‖。根据所提供的情景―Guess what! I have got A for my team paper.‖可判断出一定进行了广泛阅读并做了大量工作。must意为―一定，必须‖，后接动词原形表示―一定或必须做某事‖。should意为―应该‖，后接动词原形表示―应该做某事‖。都是对对方的要求。―should have + 动词+ed形式‖表示―本来应该做某事，而没有做‖，常用于表示责备。 主要考察知识点：情态动词 24、A

解析:don‘t have to意为―不必‖。根据所提供的情景―except to be with them and be yourself‖可判断出除了和他们在一起表现好不必做其他任何事。oughtn‘t to 意为―不应该‖；mustn‘t 意为―不准,禁止‖；can‘t 意为―不能够,不可能‖。 主要考察知识点：情态动词 25、A

主要考察知识点：情态动词 26、A

解析：―can‘t + 动词原形‖表示对现在情况的猜测或判断，意为―不可能‖。根据所提供的情景There‘s no light on可判断出他们不可能在家。mustn‘t后接动词原形表示―禁止，不准‖，不用于表示猜测、推测或判断。needn‘t意为―没必要‖，表示没有必要做某事。shouldn‘t意为―不应该‖，表示不应该做。 主要考察知识点：情态动词 27、C

主要考察知识点：情态动词 28、 D

句意为―约翰向医生许诺他不会抽烟，并且他从此不再抽烟‖。would表示意愿或决心。 主要考察知识点：情态动词 29、 B

这里的意思是有时天气可能会相当冷。can用在此处表示可能性。must―必须，肯定‖；should―应该‖；would―过去常常‖。

主要考察知识点：情态动词 30、 C

句意为―你不必非知道作者的名字，你可以按标题查找‖。can―可以，能‖；must―必须‖；need―需要‖，would表习惯性。 主要考察知识点：情态动词 31、B

选校网 www.xuanxiao.com 专业大全 历年分数线 上万张大学图片 大学视频 院校库

选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 根据句意可知，说话者对以前做过的事情感到后悔，应用shouldn‘t have done，意为―本来不该做某事，但做了‖。A、C和D项均不合题意。 主要考察知识点：情态动词 31、 D

本题考查情态动词表可能性的判断。根据―What a pity! Considering his ability and experience‖可知，他原本可以做得更好。might have done表示原本可以做某事但事实上没有做到。 主要考察知识点：情态动词 32、 D

根据后半句she hates traveling可知，空格处表示推测。may well为固定搭配，意为―很可能‖;will不能表示推测；can not表推测意为―一定不‖；must not不能表示推测，意为―禁止‖。 主要考察知识点：情态动词 34、 B

第二句意为―如果没有你的话，我想我们不可能设法完成‖。could have done在此处表示对过去的虚拟假设。 主要考察知识点：情态动词 35、 B

needn‘t意为―不必‖,表示房子不必太大,由句中that‘s not important可知大小不重要 主要考察知识点：情态动词 36、 B

句意为―尽管这听起来可能是一项简单的任务,但是仍需要小心翼翼‖。根据句意可知,此处表示不确定的推测。must―一定‖；may―可能‖；shall―必须,应该‖；should―应该‖ 主要考察知识点：情态动词 37、 B

此题考查情态动词表示推测意义的用法。句意为―你不可能（现在就已）饿了——你两个小时前刚吃的午饭‖。can‘t+do表示对现在情况的推测，常用于否定句和疑问句中；must表推测只用于肯定句中，mustn‘t意为―禁止，一定不能‖。wouldn‘t+do常表示对现在或将来情况的虚拟，needn‘t do意为―没必要做‖ 主要考察知识点：情态动词 38、 C

句意为―尽管Peter一般情况下是个很友好的人，但有时候他也可能会变得难以共处‖。考查情态动词表推测，注意题干中at times表示―有时候‖，是信息提示，与后面的in general (通常，一般情况下)形成对比，can用于肯定陈述句表示一时的可能性。A、B、D三项均无此用法。 主要考察知识点：情态动词

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 39、D

考查情态动词。句意为―根据航空管理条例，你应该在登机之前关掉手机‖。may意为―可能，可以‖，can ―能够，可能‖，would ―会，将要‖，只有D项should意为―应该‖，表示必须履行义务或者遵守规定。 主要考察知识点：情态动词 40、A

此题考查情态动词表示推测意义的用法。句意为―她不可能已离开学校，因为她的自行车还在这儿‖。根据句意可选择can‘t，can/could have done 表示对过去的推测，常用于否定句、疑问句中。wouldn‘t have done 常表示虚拟。shouldn‘t have done 意为―本来不应该做而做了……‖；needn‘t have done意为―本来没必要做而做了……‖。 主要考察知识点：情态动词 41、 A

may have done表示对过去情况不太肯定的推测。can have done一般不用于肯定句；should have done表示本应该做而没做。

主要考察知识点：情态动词

专项练习：

1. What do you mean, there are only ten tickets? There be twelve. A. should B. would

C. will D. shall

2. I can‘t leave. She told me that i_______ stay here until she comes back. A. can B. must C. will D. may

3. One of the few things you ___ say about English people with certainty is that they talk a lot about the weather. A. need B. must C. should D. can

4. This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense. A. would B. should C. could D. might

5. The doctor recommended that you _______ swim after eating a large meal. A. wouldn’t B. couldn’t C. needn’t D. shouldn’t

6. The traffic is heavy this day, I ________ arrive a bit late, so could you save me a place? A. can B. must C. need. D. might

7.We ______ last night, but we went to the concert instead.

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选校网 www.xuanxiao.com 高考频道 专业大全 历年分数线 上万张大学图片 大学视频 院校库 A. must have studied. B. might study C. should have studied. D. would study

8. What do you mean, there are only ten tickets? There be twelve A. should B. would C. will D. shall

9.. But for the help of my English teacher, I the first prize in the English Writing Competition. 21cnjy A. would not win B. would not have won C. would win D. would have won 21cnjy 10.—Hi, Tom . Any idea where Jane is?

— She _____in the classroom . I saw her there just now. A. shall be B. should have been C. must be D. might have been

11. He did not regret saying what he did but felt that he it differently.

A. could express B. would express C. could have expressed D. must have expressed

12. It ______ have been Tom that parked the car here, as he is the only one with a car.

A. may B. can C. must D. should

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