高一情态动词导学案
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高一情态动词导学案
情态动词记忆口诀:
情态动词两要点;动词原形跟后面,说话语气较委婉,can表"能力"may"许可",must"责任"或"义务",否定回答"needn't"换;should"应该",would"愿",have to "被迫"表客观.
注释:对must构成的一般疑问句作否定回答只能用needn't.
情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语
一． can和could
情态动词 用法 例句
can/could 表示能力 1．“I don’t think Mike can type.” “Yes, he can.”2．I can speak fluent English now , but I couldn’t last year.
在肯定句中，表示客观可能性 1.As a human being, anyone can make a mistake.2． I’m confident that a solution can be found.3． He can be very forgetful sometimes.
表示请求和允许。表示请求，口语中常用could代替can，使语气更委婉。 1． Can we turn the air conditioner on 2． Could you have her call me back when she gets home, please 3． I wonder if I could just ask you to sign this.
表示惊异、怀疑、不相信等态度，主要用在否定句、疑问句和感叹句中。 1.Can this be an excuse for not giving them help 2． This can’t be true.3． How can you be so crazy.
表示对现在的动作或状态进行主观的猜测，主要用在否定句和疑问句中。 1． It can’t be easy caring for a man and a child who are not your own.2． Can the man over there be our head master
特别说明：
（1） could用来表示请求时，语气委婉，主要用于疑问句，不能用于肯定句，答语应用can（即：could不能用于现在时态的简略答语中）。如：
——Could I use your dictionary
——Yes, you can.(否定回答可用：No, I’m afraid not.)
(2) can和be able to辨析
can(could)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，而be able to则有更多的形式。如：
I’ve always wanted to able to speak fluent English.
Those bags look really heavy, are you sure you’ll be able to carry them on your own
但是，表示在过去某时的某一场合经过一番努力，终于做成了某事，通常不用could，而用was/were able to来表示。这时，was/were able to相当于managed to do或succeed in doing。如：
After the accident it was a long time before she was able to walk again.
The fire was very big, but most people were able to escape from the building.
惯用形式“cannot …too…”或“cannot/never…..enough 表示“无论怎么……也不（过分）”。如：
You can’t think too highly of him.
You cannot be too careful.= You can never be careful enough.你越小心越好。
I really cannot thank you enough.It’s been an amazing day.
(4) 惯用形式“cannot but+ 不定式（不带to）”表示“不得不，只好”。如：
I cannot but admire her determination.我不得不钦佩你的决心。
(5) 惯用形式 cannot help but do sth cannot help (doing )sth 作“不得不，不能避免，不禁”讲。 如：
The girl couldn’t help but live on herself. 小女孩不得不自食其力。
When I try to speak,I can’t help making mistakes. 我一开口说话，就禁不住犯错误。
二．may和 might
情态动词 用法 例句
may/might 表示允许、许可。否定回答一般用must not/mustn’t,表示“禁止、阻止”之意，但也可以用had better not (最好别)或may not（不可以），语气较为委婉。 1． May I come in and wait 2． ——May I smoke here ——No, you mustn’t(或No, you’d better not.)
在表示请求、允许时，might比may语气更委婉些。用May I征询对方许可在文体上比较正式，在口气上比较客气，在日常用语中，用Can I征询对方意见更为常见。 1．Might I borrow your pen 2． I wonder if I might speak to your son.
表示可能性的推测，通常用在肯定句和否定句中，含有“或许”“大概”“可能”之意；用might代替may时，则语气显得更加不肯定。 1．It may rain this afternoon.2． She might come to join us this afternoon.3． I suppose he might have missed the train.
may用于祈使句表示祝愿，倒装。 1． May you succeed.2． Long may he live! 愿他能持续住下去。3． May she rest in peace.愿她安息。
惯用句式：“may well+ 动词原形”，表示“有充分的理由可以”或“有可能”。相当于to be very likely to“may as well或might(just)as well+动词原形”表示有礼貌地劝告，意为“还是。。。的好” 1．You may well say so. 你很有理由这样说。2． There may well be a real problem here.3． There is nothing to do, so I may as well go to bed.4． You may as well tell us now, we’ll find out sooner or later..
三．must和have to
情态动词 用法 例句
must 表示“必须，应该”之意，语气比should，ought to强烈。其否定形式mustn’t表示“不准，不应该，禁止”等意 1． You must come to school on time.2. Everybody must obey the law.3． You mustn’t drive so fast in the street.4． We mustn’t waste any more time.
在回答带有must的问句时，否定回答常用needn’t或don’t have to. 1．—Must I come back before ten —Yes，you must.(No, you needn’t)
表示有把握的推测，意为“一定、准是、相必”，只用于肯定句中 1． It must be my mother.2． You must be hungry after a walk.3． There must be a hole in the wall.
表示说话人不满的语气。“偏偏”“偏执”“固执” 1. Why must you always interrupt me 2. It can't help.He must go with me.
have to “必须，不得不”，意义与must相近。但must表示的是说话人的主观看法，而have to则往往强调客观需要。 1． The film is not interesting. I really must go now.2． I have to go now, because my mother is in hospital.
must只有一种形式，即现在式与过去式都是一种形式，而have to则涉及各种人称、时态等方面的变化形式。 1．I had to work hard when I was your age.2．I will have to learn how to use a computer.3．In order to take the exam, we’ll have to finish the whole book by the end of this month .
两者的否定意义不同，mustn’t表示“禁止，不许”，don’t have to表示不必。 1． You mustn’t go there.2． You don’t have to go there.
特别说明：
1. 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？
2. 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
3. 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
4. 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
四．shall和should
情态动词 用法 例句
shall 用于第一、三人称构成的疑问句，表示征求对方意见或请求指示 1． Shall I open the window 2． Shall we say 6 o’clock, then 3． What shall I get for dinner
用于第二、三人称陈述句中，表示说话人给对方的命令、警告、允诺或威胁。 1． Don’t worry, you shall get the answer this afternoon.(允诺)2． He shall be sorry for it one day, I tell you. （警告）3． You shall do as I say. (命令)4． If you children don’t do as I tell you, you shall not go to the party. (威胁)
在条约﹑规定﹑法令等文件中表示义务或规定，“应……，须……，得……”用于第三人称。 1.The new regulation shall take effect on June 1st2..Don't worry,sir! All payments shall be made by the end of the month.3. The fine shall be given in cash.罚款须以现金缴纳。
情态动词 用法 例句
should 表示劝告或建议，意为“应该” 1． What should I do 2． Should I trust him 3． You should read his new book.
表示推测，用在肯定句中，通常指有事实依据，常理推断。意为“想必，大概，或许” 1. It should be a nice day tomorrow.2.Try phoning Robert, he should be home now.3．He should be around sixty years old.
还可以用在if引导的条件状语从句中，表示语气较强的假设，译作“万一，竟然”，这时也可将should置于从句之首，省略if..主句谓语动词用虚拟语气：would/could/should/might +动词原形 Ask Tom to ring me up if you should see him. 2．Should I be free tomorrow, I’ll come. (万一我明天有时间，我就过来)3.If things should change suddenly, please let me know. (万一情况突变，请通知我)4.If it should snow tomorrow,we could take photos outside.
用于疑问句或感叹句中，表示意外、惊异的情绪，意为“竟会”，与why，what，how，who连用，如果是疑问句，则不需要回答。 1． Why should anyone want to marry Tony 2． Don’t ask me. How should I know
用于第一人称时，可表示客气的请求，提出意见或建议。表示说话人的一种谦逊、客气、委婉的语气。 1. You are mistaken.I should say. 依我看是你搞错了。2. I should like to call my lawyer.3. ---Will you require anything else ---Yes,I should like a whiskey.
五．will和would
情态动词 用法 例句
will/would 用于表示意志或意愿。will指现在，would指过去。 1． He is the man who will go his own way. (他首歌自行其是的人。)2． They said they would meet us at 10:30 at the station.
表示请求、建议等，用would比用will委婉、客气。 1.Will you please take a message for him 2． Would you please tell me your telephone number
表示习惯或倾向，意为“总是，惯于”。will至现在，would指过去。 1． This old man is strange.She will sit for hours without saying anything.2．People will talk. (人们总会说闲话。)3．When we worked in the same office, we would often have coffee together.
表示推测，意为“很可能，大概”。will表示推测比should把握大，比must把握小。 1．These things will happen.2．This will be the house you're looking for. 这大概就是你找的那所房子了。3． It would be about ten o’clock when he left home.
表示规律性的“注定会”。 1.People will die without air. 没有空气，人就会死去。2. Oil will float on water.
表示功能，意为“能，行”。惯用形式：will do/would do表示“解决问题”、“就行”。 1． That will be all right.2． Either pen will do.3． It would not do to work too late.（工作太晚不行。）
用于否定句中，意为“不肯”、“不乐意” 1．I won’t listen to your nonsense.2．No matter what I said, he wouldn’t listen to me.
特别说明：would与used to辨析
would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，所以我们不能说：“she would be a quiet girl.”
另外，would强调过去某种特定情况下的活动，是完全过去的事情，同现在没有联系。而used to则着眼于过去和现在的对比，隐含现在已不存在，动作或状态都可表示。Would可以表示不规则的习惯，used to则不可。如：
He used to be a naughty boy and cause trouble.
I used to get up at six in the morning.
Sometimes she would take a walk in the neighboring woods.
In those days, whenever I had difficulties, I would go to Mr. Chen for help.
need和dare
情态动词 用法 例句
need 用于表示“需要，必要”之意。做情态动词时，仅用于否定句和疑问句，只有现在时，过去式要用needn't have，疑问式用need+人称,否定式用need not(即needn't）， 1．—Need we leave soon —Yes, you must.(No, you needn't)2．You needn't have hurried.(=It was not necessary for you to hurry，but you did).你当时不必这么匆忙。
做实义动词时，其变化与一般的实义动词相同，后接带to的不定式（need doing = need to be done ）,过去式用needed、did you need 和didn't need,肯定式用needs/needed/need,疑问式用do、does、did提问，否定式要在前面加don't、doesn't、didn't 1. A job like nursing needs patience and understanding.(need+名词，need understanding=need to be understood,需要被理解)2．He needs to see a doctor.(need to do)3．Do you still need volunteers to help clean up after the party (need somebody to do something) 4．They didn't need to start so early.(do not need to do)
情态动词 用法 例句
dare 用于表示“敢于”之意。做情态动词，没有人称和数的变化，主要用于否定句、疑问句和条件状语从句中 1．—Dare you tell her the truth —Yes, I dare. /No, I daren’t.3． How dare you accuse me of lying!4． He daren’t admit this.
用作实义动词时，其变化与一般的实义动词相同。在肯定句中，dare后接带to的不定式；否定句中，dare后既可接带to的不定式，也可接不带to的不定式。 1． Only a few journalists dared to cover the story.2． He doesn’t dare (to) go there alone.3． Don’t you dare (to) touch it
I dare say …作插入语,我想, 大概, 可能, 或许 1.You are tired.I dare say. 我想你是累了。2.I dare say you've spent all your money by now. 我估计你的钱现在已经用完了。
七．ought的用法：
情态动词 用法 例句
ought to do 表示“应该”之意，同should,。表示义务或责任，比should语气重。 1． You ought to take care of him.2． —Ought I go now —Yes, you ought to. /No, you oughtn’t to.
表示推测。注意与must表示推测时的区别ought to (客观推测), must(主观推测)。 1． He must be home by now. (断定他已到家)2． He ought to be home by now. (不十分肯定)3． This is where the oil must be. (比较直率)4． This is where the oil ought to be. (比较含蓄)
说明：should与ought to 表示“应该”时的区别
should 表示自己的主观看法，而ought to的语气中，含有“按道理应该……”之意。若要反映客观情况或涉及法律义务和规定，一般用ought to。如：
You should help them with their work.
You are his father. You ought to get him to receive good education.
八．“情态动词+have done”用法
情态动词+have done 用法 例句
must have done 表示主观上对过去已经发生的行为进行推测，意为“想必，准是，一定做了某事” 1.She must have gone through a lot.2.He must have visited the White House during his stay in the United States.
may/might have done 表示对过去已发生行为的推测，意为“也许/或许已经（没有）……“。一般用于肯定句或否定句中，不用于疑问句。用might则表示语气更加不肯定。 1.You may have learnt the news.2.He may not have heard his name called.3.Sorry I’m late. I might have turned off the alarm clock and gone back to sleep again.
can…have donecannot have done 表示对过去发生的行为的怀疑和不肯定，通常用在否定句和疑问句中。（can换成could时语气委婉） 1.Where can she have gone 2.Could he have done such a foolish thing 3.The boy can’t have finished reading the book so soon because it is difficult even to an adult.
could have done 可用于肯定句中，表示“可能已经……”之意，此外，还可以表示过去能做而没做的事，有一种对过去为付诸实施的事情的惋惜。 1.He could have killed himself driving at a dangerous speed.2.You could have been more considerate.3.You could have done better, but you were too careless.
might have done 表示“本来可能……，但实际上没有发生的事情”。另外，还可以表示“本来应该或可以做某事”之意，含有轻微的责备语气。 1． You should not swim in that sea. You might have been eaten by a shark.2． He might have given him more help, thought he was busy.
should/ought to have done 用于肯定句时，表示本该做某事，而实际上未做；用于否定句时，则表示不该做的事反而做了。 1.He should have known that the police would never allow this sort of thing.2.You shouldn’t have done it so carelessly.3.You ought not to have refused his offer.
needn’t have done 表示做了本来不必去做的事。注意：didn’t need to do表示“没必要做而实际上也没有做某事” 1.You needn’t have watered the plants, for it is going to rain.2． I didn’t need to buy the dictionary. I had a copy at home.
had better have done 用于事后的建议，含轻微责备的口吻，意为“当时最好做了某事”，其否定式had better not have done表示相反的含义。 1．You had better have started earlier.2． You had better not have scolded her.
would rather have done 表示“当时宁愿做了某事”，其否定式would rather not have done表示相反的含义，两者都表示“后悔”之意。 1．I would rather have taken his advice.2．I would rather not have told him the truth.
总结:
一、猜测: must, may, might, can, could
只能用于肯定句,非常肯定的猜测的是 __________
只能用于肯定句,表示可能的猜测 __________
只能用于否定句，疑问句 ____________过去时用 ____________
表示预测，主观推测或期待 “应当” ____________
二、情态动词否定式的常考点有：
mustn’t 禁止、严禁、不准 needn’t 不必要、没必要(=don’t have to)
can’t不可能 may not 可能不、或许不
shouldn’t 不应该（=ought not to )
三、情态动词+ have done
表示对过去发生的事情的推测,批评,反悔等意
should have done _________________
ought to have done _________________
could have done __________________
needn’t have done ___________________
may/ might have done _______________________
must have done ________________________
can’t have done _________________________
四．情态动词表推测的三种时态
1.对将来情况的推测，用“情态动词 + 动词原形”。
2.对现在或一般情况的推测，用“情态动词 + be”，“情态动词 +be doing”或
“情态动词 + 动词原形”。
3.对过去情况的推测，用“情态动词 + have +过去分词”。
五．补充强调：推测的句型特点（对某一次的推测句型有两部分：语气和时态）
（1）语气部分：（以下情态动词语气由强至弱）
肯定句：must、may、might（=could）
否定句：can’t（=couldn’t）、mayn’t、mightn’t
疑问句：can、could（语气更加委婉不确定）
（2）时态部分：
be表示对现在的推测 have done表示对过去的推测 be doing表示对正在进行的推测
语气部分写在前时态部分写在后，组合在一起就是推测
六．情态动词表推测的解题关键： 时间决定形式 语气决定选词
解答情态动词表示推测的试题时，一要清楚被推测的时间，二要清楚有无客观事实根据。若有客观事实根据，无论是肯定还是否定的推测，推测语气最强且符合时间要求的为最佳答案；若无客观事实根据，则推测语气符合时间要求的为最佳答案。
情态动词练习题 （一）
1)A computer ___think for itself, it must be told what to do.
A. can’t B. couldn’t C. may not D. might not
2).The fire spread through the hotel very quickly but everyone ____ get out.
A. had to B. would C. could D. was able to
3)--Where is my uncle, Mary
--He ___ in the bedroom.
A. must have been B. must be C. may have been D. should have been
4)Peter ___ come with us tonight, but he isn’t very sure yet.
A. must B. may C. can D. will
5) --That must be a mistake.
--No, it ___ a mistake.
A. must not be B. needn’t be C. can not be D. would not be
6) It’s nearly 7 o’clock. Dad ___ come home soon.
A. can B. could C. would D. should
7)--Are you coming to Jeff’s party
--I’m not sure. I ___ go to the concert tonight.
A. must B. would C. should D. might
8)You ___ return the book now. You can keep it till next week if you like.
A. can’t B. mustn’t C. needn’t
9)Johnny, you___ play with the knife, you ___ hurt yourself.
A. won’t; can’t B. mustn’t; may C. shouldn’t, must D. can’t; shouldn’t
10).I didn’t hear the phone. I ___ asleep.
A. must be B. must have been C. should be D. should have been
11).I didn’t see her in the meeting room this morning. She ___ at the meeting.
A. mustn’t have spoken B. shouldn’t have spoken C. needn’t have spoken D. couldn’t have spoken
12).I can’t find Mr. Smith anywhere in the office building. Where ___ he have gone
A. must B. can C. should D. need
情态动词练习题（二）
1. —______ it be Li Ping who broke the glass
—No. It ______ be Wu Dong who did it.
A. Can; must B. Must; need C. May; must D. Need; can
—Don’t forget to visit me when you come to Beijing.
—_________.
A. I don’t B. I won’t C. I can’t D. I haven’t
3. —Could I use your bike —Yes, surely you ______.
A. might B. will C. can D. should
4. Her brother __ be at home now, because he was seen playing basketball in the stadium just now.
A. mustn’t B. needn’t C. can’t D. shouldn’t
5. —When can you get my car repaired I need it tomorrow morning.
—It ______ be ready by 8:00.
A. can B. need C. might D. should
6. —Are you coming for dinner
—I’m not quite sure. I ______ go to my uncle’s instead.
A. must B. would C. Should D. might
7. Don’t believe him. What he said ______ be true.
A. mustn’t B. needn’t C. shouldn’t D. may not
8. —______ I go home now, sir
—No, you ______. You should finish the composition first.
A. Might; wouldn’t B. May; had better not C. Must; mustn’t D. Need; mustn’t
—______ he use your bike —Certainly. Here is the key.
A. Shall B. Must C. Will D. Does
10. Mr Bush is on time for everything. How ______he be late for the important meeting
A. would B. should C. might D. need
情态动词练习题（三）
1. I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.
A. was able to B. would C. could D. should
2. I promised to get there before 5 o’clock, but now the traffic is still so heavy. They _____ for me impatiently.
A. may wait B. must be waiting C. could wait D. ought to wait
3. I ______ her, but I never could.
A. ought to help B. must help C. must have helped D. ought to have helped
4. The Smiths went to the country for the weekend as they ______ to the office.
A. needn’t have gone B. mustn’t go C. may not go D. didn’t have to go
5. My parents never remember my telephone number, and they always ______ look it up.
A. should B. can C. have to D. must
6. Bobby ______ me your secret, but he meant no harm.
A. shouldn’t have told B. should tell C. mustn’t have told D. could tell
7. If you ______ go, at least wait until the rain stops.
A. can B. must C. should D. would
8. You ______ follow me if I am wrong.
A. must B. don’t have to C. wouldn’t D. ought to
9. _____ you like to have a walk with us this evening
A. Could B. Will C. Would D. Can
10. —Mr Wang, I will go and fetch four chairs for the meeting.
—You ______ fetch four; two will do.
A. won’t B. couldn’t C. shouldn’t D. needn’t
情态动词高考考题:
1. I thought you _____like something to read, so I have brought you some books.
A. may B. might C. would D. must
2. Where is my pen I ____it.
A. might lose B. would have lost C. should have lost D. must have lost
3. I didn’t hear the phone. I ___asleep.
A. must be B. must have been C. should be D. should have been
4. ---There were already five people in the car, but they managed to take me as well.
----It ____a comfortable journey
A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been
5. It’s nearly seven o’clock . Jack ___be here at any moment.
A. must B. need C. should D. could
6. They will ______ run this machine on their own in three months.
A. can B. could C. may D. be able to
7. That big cinema ______ seat 2,000 people.
A. can B. should C. ought to D. is able to
8. — Could I borrow your dictionary
— Yes, of course you _______.
A. might B. will C. can D. should
9. — Might I watch TV after supper
— Yes, you ________.
A. may B. must C. might D. can
10. --Will you stay for lunch
--Sorry, _____. My brother is coming to see me.
A. I mustn’t B. I can’t C. I needn’t D. I won’t
11. --May I pick a flower in the garden
-- ________.
A. No, you needn’t B. Not, please. C. No, you mustn’t D. No, you won’t
12. Put on more clothes. You ________ be feeling cold with only a shirt on.
A. can B. could C. must D. would
13. "Must I drive to his house and pick up the children "
"No, ________ ."
A. you shouldn't B. you might not C. you needn't D. you mustn't
14. We didn't see Tom at the meeting yesterday. He ________it.
A. mustn't have attended B. cannot have attended
C. needn't have attended D. would have not attended
15. We ________ play chess than bridge. Some of us don't know how to play bridge.
A. had better B. would better C. would rather D. had rather
16. There is someone knocking at the door. ________ it be Tom
A. can B. must C. should D. ought to
17. Two years ago, my husband bought me a bicycle. If you live in town, it is often faster than a car and you ________ worry about parking.
A. must not B. may not C. should not D. don't have to
18.--Is John coming by train
-- He should, but he ____ not. He likes driving his car. (2002高考题）
A. must B. can C. need D. may
19.It has been announced that candidates(候选人)____ remain in their seats until all the papers have been collected. (2002上海高考题）
A. can B.will C. may D. shall
20.--I heard they went skiing in the mountains last winter.
--It ____ true because there was little snow there. (2002北京高考题）
A. may not be B. won’t be C. couldn’t be D. mustn’t be
情态动词强化练习 (作业)
1.–May I sit beside you, sir
--- No, you ______. My girlfriend is coming soon.
A. can’t B. mustn’t C. needn’t D. shouldn’t
2.-- _____ I speak to Mary, please
--Sorry, she____ come to the phone because she isn’t in.
A. Might; won’t B. Can’t; mustn’t C. May; can’t D. Couldn’t; shouldn’t
3. --- I want to know if I _ smoke here.
--- No, you____ . Could you see the sign “NO SMOKING” there
A. can; needn’t B. must; can’t C. shall; won’t D. may; mustn’t
4. My wife never remembers my telephone number. She always ____ look it up.
A. must B. should C. would D. has to
5. --- ____ you pass me the English magazine, please
--- Sure. Here you are.
A. Could B. Need C. Must D. Might
6. ---Must I go to work with you
--- No, you_____. Linda ______ go with me.
A. mustn’t; can B. can’t; has to C. daren’t; should D. needn’t; may
7. --- __ I tell Mary the test results
--- No, you____. She’s already got the score.
A. Will; won’t B. Shall; needn’t C. May; mustn’t D. Can; don’t
8. You ____ be careful when crossing here. The traffic lights aren’t working.
A. might B. ought to C. could D. may
9. ---Could I borrow your bicycle
--- Yes, of course you_____.
A.will B. should C. can D. need
10. Joan_____ come with us this afternoon, but she isn’t very sure yet.
A. can B. may C. must D. will
11. I _____ ask you the question because I think I _____ be wrong.
A. daren’t; must B. mustn’t; can C. needn’t; may D. can’t; should
12. It’s nearly eight o’clock. Mike _____ be here at any moment.
A. need B. has to C. should D. can
13. The fire spread through the building very quickly but everyone ____ get out.
A. had to B. would C. could D. was able to
14.---What do you think of this answer
---I don’t think it ____ be right.
A.should B. might C. must D. can
15. --- Is John coming by train
--- He should, but he ___. He likes driving his car.
A. can’t B. needn’t C. may not D. mustn’t
16. He doesn’t have to work tomorrow, but you have got to, ____ you
A. don’t B. haven’t C. haven’t got D. can’t
17. You_____ wake me up when I fall asleep, ______ you
A. haven’t better; have B. would not rather; would
C. had better not; should D. had not better; must
18. ---Why! I couldn’t get you on the phone this morning.
--- We _____ tennis in the yard when you phone me.
could be playing B. must be playing
C. must have been playing D. should have played
19. --- We didn’t see him at the lecture.
--- Neither did anybody else. He _____ it.
A. may not have attended B. mustn’t attend C. can’t have attended D. couldn’t attend
20. ---I came here by taxi and the driver charged me 50 yuan.
---Really You _____ have come by bus.
A. could B. must C. may D. should
21. --- Do you still remember when we went to the Great Wall
--- I can’t remember it well, but _____ it have been sometime last May
A. should B. must C. could D. would
22. ---I wonder why Mr Lin didn’t come to work.
--- He____ have been ill.
A. needn’t B. should C. might D. can
23. ---No one passed the mathematics examination today.
---I guess we ____ the exercise last night.
A. could review B. should review C. might review D. should have reviewed
24. She_____ the hospital so soon, for she hasn’t yet recovered.
A. wouldn’t have left B. shouldn’t have left C. needn’t leave D. hadn’t left
25. Why didn’t you tell me there was no meeting today
I ______ all the way here through the heavy snow.
A. needn’t have driven B. can’t have driven
C. must have driven D. shouldn’t have driven.
26. The book is neither yours nor mine. Whose ______ it be
A. must B. may C. should D. can
27. It is surprising that he ____ have been so foolish.
A. must B. could C. should D. can
28. It must have rained last night, _____ it
A. mustn’t B. can’t C. hasn’t D. didn’t
29.---Will you stay for lunch
--- Sorry, I _____. My brother is coming to see me.
A. mustn’t B. can’t C. needn’t D. won’t
30. --- Are you coming to Jeff’s party
--- I’m not sure. I ____ go to the concert instead.
A. must B. would C. should D. might.
31. Michael ____ be a policeman, for he’s much too short.
A. needn’t B. can’t C. should D. may
32. Mr Bush is on time for everything. How ___ it be that he was late for the ceremony
A. can B. should C. may D. must
33. –I stayed at a hotel while in New York
-- Oh did you You ____ with Barbara.
A. could have stayed B. could stay C. must have stayed D. would stay
34. If I ___go with you, I would feel very glad.
A. can B. could C. should D. may
35.There was a lot of fun at yesterday’s party. You___ come, but why didn’t you
A. must have B. Should C. need have D. ought to have
36.—When can I come for the photos I need them tomorrow afternoon.
--They ___ be ready by 12:00.
A. can B. should C. might D. need
37. I didn’t hear the phone. I ____ asleep.
A. must be B. must have been C. should be D. should have been
38. I ___ do all the difficult work for you.
A. haven’t got to B. not have got to C. have got not to D. have got to not
39. Sorry I’m late. I ___ have turned off the alarm clock and gone back to sleep again.
A. might B. should C. can D. will
40. If I had time, I ____ go with you.
A. can B. will C. may D. might
参考答案
练习题
1-5 ADBBC 6-10 DDCBB 11-12 DB
高考考题
1-5 BDBDC 6-10 DACAB 11-15 CCCBA 16-20 ADDDC
情态动词强化练习
1-5 ACDDA 6-10 DBBCB 11-15 ACDDC 16-20 BCCCD
21-25 CCDBA 26-30 DCDBD 31-35 BAABD 36-40 BBAAD
4
情态动词记忆口诀:
情态动词两要点;动词原形跟后面,说话语气较委婉,can表"能力"may"许可",must"责任"或"义务",否定回答"needn't"换;should"应该",would"愿",have to "被迫"表客观.
注释:对must构成的一般疑问句作否定回答只能用needn't.
情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语
一． can和could
情态动词 用法 例句
can/could 表示能力 1．“I don’t think Mike can type.” “Yes, he can.”2．I can speak fluent English now , but I couldn’t last year.
在肯定句中，表示客观可能性 1.As a human being, anyone can make a mistake.2． I’m confident that a solution can be found.3． He can be very forgetful sometimes.
表示请求和允许。表示请求，口语中常用could代替can，使语气更委婉。 1． Can we turn the air conditioner on 2． Could you have her call me back when she gets home, please 3． I wonder if I could just ask you to sign this.
表示惊异、怀疑、不相信等态度，主要用在否定句、疑问句和感叹句中。 1.Can this be an excuse for not giving them help 2． This can’t be true.3． How can you be so crazy.
表示对现在的动作或状态进行主观的猜测，主要用在否定句和疑问句中。 1． It can’t be easy caring for a man and a child who are not your own.2． Can the man over there be our head master
特别说明：
（1） could用来表示请求时，语气委婉，主要用于疑问句，不能用于肯定句，答语应用can（即：could不能用于现在时态的简略答语中）。如：
——Could I use your dictionary
——Yes, you can.(否定回答可用：No, I’m afraid not.)
(2) can和be able to辨析
can(could)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，而be able to则有更多的形式。如：
I’ve always wanted to able to speak fluent English.
Those bags look really heavy, are you sure you’ll be able to carry them on your own
但是，表示在过去某时的某一场合经过一番努力，终于做成了某事，通常不用could，而用was/were able to来表示。这时，was/were able to相当于managed to do或succeed in doing。如：
After the accident it was a long time before she was able to walk again.
The fire was very big, but most people were able to escape from the building.
惯用形式“cannot …too…”或“cannot/never…..enough 表示“无论怎么……也不（过分）”。如：
You can’t think too highly of him.
You cannot be too careful.= You can never be careful enough.你越小心越好。
I really cannot thank you enough.It’s been an amazing day.
(4) 惯用形式“cannot but+ 不定式（不带to）”表示“不得不，只好”。如：
I cannot but admire her determination.我不得不钦佩你的决心。
(5) 惯用形式 cannot help but do sth cannot help (doing )sth 作“不得不，不能避免，不禁”讲。 如：
The girl couldn’t help but live on herself. 小女孩不得不自食其力。
When I try to speak,I can’t help making mistakes. 我一开口说话，就禁不住犯错误。
二．may和 might
情态动词 用法 例句
may/might 表示允许、许可。否定回答一般用must not/mustn’t,表示“禁止、阻止”之意，但也可以用had better not (最好别)或may not（不可以），语气较为委婉。 1． May I come in and wait 2． ——May I smoke here ——No, you mustn’t(或No, you’d better not.)
在表示请求、允许时，might比may语气更委婉些。用May I征询对方许可在文体上比较正式，在口气上比较客气，在日常用语中，用Can I征询对方意见更为常见。 1．Might I borrow your pen 2． I wonder if I might speak to your son.
表示可能性的推测，通常用在肯定句和否定句中，含有“或许”“大概”“可能”之意；用might代替may时，则语气显得更加不肯定。 1．It may rain this afternoon.2． She might come to join us this afternoon.3． I suppose he might have missed the train.
may用于祈使句表示祝愿，倒装。 1． May you succeed.2． Long may he live! 愿他能持续住下去。3． May she rest in peace.愿她安息。
惯用句式：“may well+ 动词原形”，表示“有充分的理由可以”或“有可能”。相当于to be very likely to“may as well或might(just)as well+动词原形”表示有礼貌地劝告，意为“还是。。。的好” 1．You may well say so. 你很有理由这样说。2． There may well be a real problem here.3． There is nothing to do, so I may as well go to bed.4． You may as well tell us now, we’ll find out sooner or later..
三．must和have to
情态动词 用法 例句
must 表示“必须，应该”之意，语气比should，ought to强烈。其否定形式mustn’t表示“不准，不应该，禁止”等意 1． You must come to school on time.2. Everybody must obey the law.3． You mustn’t drive so fast in the street.4． We mustn’t waste any more time.
在回答带有must的问句时，否定回答常用needn’t或don’t have to. 1．—Must I come back before ten —Yes，you must.(No, you needn’t)
表示有把握的推测，意为“一定、准是、相必”，只用于肯定句中 1． It must be my mother.2． You must be hungry after a walk.3． There must be a hole in the wall.
表示说话人不满的语气。“偏偏”“偏执”“固执” 1. Why must you always interrupt me 2. It can't help.He must go with me.
have to “必须，不得不”，意义与must相近。但must表示的是说话人的主观看法，而have to则往往强调客观需要。 1． The film is not interesting. I really must go now.2． I have to go now, because my mother is in hospital.
must只有一种形式，即现在式与过去式都是一种形式，而have to则涉及各种人称、时态等方面的变化形式。 1．I had to work hard when I was your age.2．I will have to learn how to use a computer.3．In order to take the exam, we’ll have to finish the whole book by the end of this month .
两者的否定意义不同，mustn’t表示“禁止，不许”，don’t have to表示不必。 1． You mustn’t go there.2． You don’t have to go there.
特别说明：
1. 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？
2. 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
3. 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
4. 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
四．shall和should
情态动词 用法 例句
shall 用于第一、三人称构成的疑问句，表示征求对方意见或请求指示 1． Shall I open the window 2． Shall we say 6 o’clock, then 3． What shall I get for dinner
用于第二、三人称陈述句中，表示说话人给对方的命令、警告、允诺或威胁。 1． Don’t worry, you shall get the answer this afternoon.(允诺)2． He shall be sorry for it one day, I tell you. （警告）3． You shall do as I say. (命令)4． If you children don’t do as I tell you, you shall not go to the party. (威胁)
在条约﹑规定﹑法令等文件中表示义务或规定，“应……，须……，得……”用于第三人称。 1.The new regulation shall take effect on June 1st2..Don't worry,sir! All payments shall be made by the end of the month.3. The fine shall be given in cash.罚款须以现金缴纳。
情态动词 用法 例句
should 表示劝告或建议，意为“应该” 1． What should I do 2． Should I trust him 3． You should read his new book.
表示推测，用在肯定句中，通常指有事实依据，常理推断。意为“想必，大概，或许” 1. It should be a nice day tomorrow.2.Try phoning Robert, he should be home now.3．He should be around sixty years old.
还可以用在if引导的条件状语从句中，表示语气较强的假设，译作“万一，竟然”，这时也可将should置于从句之首，省略if..主句谓语动词用虚拟语气：would/could/should/might +动词原形 Ask Tom to ring me up if you should see him. 2．Should I be free tomorrow, I’ll come. (万一我明天有时间，我就过来)3.If things should change suddenly, please let me know. (万一情况突变，请通知我)4.If it should snow tomorrow,we could take photos outside.
用于疑问句或感叹句中，表示意外、惊异的情绪，意为“竟会”，与why，what，how，who连用，如果是疑问句，则不需要回答。 1． Why should anyone want to marry Tony 2． Don’t ask me. How should I know
用于第一人称时，可表示客气的请求，提出意见或建议。表示说话人的一种谦逊、客气、委婉的语气。 1. You are mistaken.I should say. 依我看是你搞错了。2. I should like to call my lawyer.3. ---Will you require anything else ---Yes,I should like a whiskey.
五．will和would
情态动词 用法 例句
will/would 用于表示意志或意愿。will指现在，would指过去。 1． He is the man who will go his own way. (他首歌自行其是的人。)2． They said they would meet us at 10:30 at the station.
表示请求、建议等，用would比用will委婉、客气。 1.Will you please take a message for him 2． Would you please tell me your telephone number
表示习惯或倾向，意为“总是，惯于”。will至现在，would指过去。 1． This old man is strange.She will sit for hours without saying anything.2．People will talk. (人们总会说闲话。)3．When we worked in the same office, we would often have coffee together.
表示推测，意为“很可能，大概”。will表示推测比should把握大，比must把握小。 1．These things will happen.2．This will be the house you're looking for. 这大概就是你找的那所房子了。3． It would be about ten o’clock when he left home.
表示规律性的“注定会”。 1.People will die without air. 没有空气，人就会死去。2. Oil will float on water.
表示功能，意为“能，行”。惯用形式：will do/would do表示“解决问题”、“就行”。 1． That will be all right.2． Either pen will do.3． It would not do to work too late.（工作太晚不行。）
用于否定句中，意为“不肯”、“不乐意” 1．I won’t listen to your nonsense.2．No matter what I said, he wouldn’t listen to me.
特别说明：would与used to辨析
would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，所以我们不能说：“she would be a quiet girl.”
另外，would强调过去某种特定情况下的活动，是完全过去的事情，同现在没有联系。而used to则着眼于过去和现在的对比，隐含现在已不存在，动作或状态都可表示。Would可以表示不规则的习惯，used to则不可。如：
He used to be a naughty boy and cause trouble.
I used to get up at six in the morning.
Sometimes she would take a walk in the neighboring woods.
In those days, whenever I had difficulties, I would go to Mr. Chen for help.
need和dare
情态动词 用法 例句
need 用于表示“需要，必要”之意。做情态动词时，仅用于否定句和疑问句，只有现在时，过去式要用needn't have，疑问式用need+人称,否定式用need not(即needn't）， 1．—Need we leave soon —Yes, you must.(No, you needn't)2．You needn't have hurried.(=It was not necessary for you to hurry，but you did).你当时不必这么匆忙。
做实义动词时，其变化与一般的实义动词相同，后接带to的不定式（need doing = need to be done ）,过去式用needed、did you need 和didn't need,肯定式用needs/needed/need,疑问式用do、does、did提问，否定式要在前面加don't、doesn't、didn't 1. A job like nursing needs patience and understanding.(need+名词，need understanding=need to be understood,需要被理解)2．He needs to see a doctor.(need to do)3．Do you still need volunteers to help clean up after the party (need somebody to do something) 4．They didn't need to start so early.(do not need to do)
情态动词 用法 例句
dare 用于表示“敢于”之意。做情态动词，没有人称和数的变化，主要用于否定句、疑问句和条件状语从句中 1．—Dare you tell her the truth —Yes, I dare. /No, I daren’t.3． How dare you accuse me of lying!4． He daren’t admit this.
用作实义动词时，其变化与一般的实义动词相同。在肯定句中，dare后接带to的不定式；否定句中，dare后既可接带to的不定式，也可接不带to的不定式。 1． Only a few journalists dared to cover the story.2． He doesn’t dare (to) go there alone.3． Don’t you dare (to) touch it
I dare say …作插入语,我想, 大概, 可能, 或许 1.You are tired.I dare say. 我想你是累了。2.I dare say you've spent all your money by now. 我估计你的钱现在已经用完了。
七．ought的用法：
情态动词 用法 例句
ought to do 表示“应该”之意，同should,。表示义务或责任，比should语气重。 1． You ought to take care of him.2． —Ought I go now —Yes, you ought to. /No, you oughtn’t to.
表示推测。注意与must表示推测时的区别ought to (客观推测), must(主观推测)。 1． He must be home by now. (断定他已到家)2． He ought to be home by now. (不十分肯定)3． This is where the oil must be. (比较直率)4． This is where the oil ought to be. (比较含蓄)
说明：should与ought to 表示“应该”时的区别
should 表示自己的主观看法，而ought to的语气中，含有“按道理应该……”之意。若要反映客观情况或涉及法律义务和规定，一般用ought to。如：
You should help them with their work.
You are his father. You ought to get him to receive good education.
八．“情态动词+have done”用法
情态动词+have done 用法 例句
must have done 表示主观上对过去已经发生的行为进行推测，意为“想必，准是，一定做了某事” 1.She must have gone through a lot.2.He must have visited the White House during his stay in the United States.
may/might have done 表示对过去已发生行为的推测，意为“也许/或许已经（没有）……“。一般用于肯定句或否定句中，不用于疑问句。用might则表示语气更加不肯定。 1.You may have learnt the news.2.He may not have heard his name called.3.Sorry I’m late. I might have turned off the alarm clock and gone back to sleep again.
can…have donecannot have done 表示对过去发生的行为的怀疑和不肯定，通常用在否定句和疑问句中。（can换成could时语气委婉） 1.Where can she have gone 2.Could he have done such a foolish thing 3.The boy can’t have finished reading the book so soon because it is difficult even to an adult.
could have done 可用于肯定句中，表示“可能已经……”之意，此外，还可以表示过去能做而没做的事，有一种对过去为付诸实施的事情的惋惜。 1.He could have killed himself driving at a dangerous speed.2.You could have been more considerate.3.You could have done better, but you were too careless.
might have done 表示“本来可能……，但实际上没有发生的事情”。另外，还可以表示“本来应该或可以做某事”之意，含有轻微的责备语气。 1． You should not swim in that sea. You might have been eaten by a shark.2． He might have given him more help, thought he was busy.
should/ought to have done 用于肯定句时，表示本该做某事，而实际上未做；用于否定句时，则表示不该做的事反而做了。 1.He should have known that the police would never allow this sort of thing.2.You shouldn’t have done it so carelessly.3.You ought not to have refused his offer.
needn’t have done 表示做了本来不必去做的事。注意：didn’t need to do表示“没必要做而实际上也没有做某事” 1.You needn’t have watered the plants, for it is going to rain.2． I didn’t need to buy the dictionary. I had a copy at home.
had better have done 用于事后的建议，含轻微责备的口吻，意为“当时最好做了某事”，其否定式had better not have done表示相反的含义。 1．You had better have started earlier.2． You had better not have scolded her.
would rather have done 表示“当时宁愿做了某事”，其否定式would rather not have done表示相反的含义，两者都表示“后悔”之意。 1．I would rather have taken his advice.2．I would rather not have told him the truth.
总结:
一、猜测: must, may, might, can, could
只能用于肯定句,非常肯定的猜测的是 __________
只能用于肯定句,表示可能的猜测 __________
只能用于否定句，疑问句 ____________过去时用 ____________
表示预测，主观推测或期待 “应当” ____________
二、情态动词否定式的常考点有：
mustn’t 禁止、严禁、不准 needn’t 不必要、没必要(=don’t have to)
can’t不可能 may not 可能不、或许不
shouldn’t 不应该（=ought not to )
三、情态动词+ have done
表示对过去发生的事情的推测,批评,反悔等意
should have done _________________
ought to have done _________________
could have done __________________
needn’t have done ___________________
may/ might have done _______________________
must have done ________________________
can’t have done _________________________
四．情态动词表推测的三种时态
1.对将来情况的推测，用“情态动词 + 动词原形”。
2.对现在或一般情况的推测，用“情态动词 + be”，“情态动词 +be doing”或
“情态动词 + 动词原形”。
3.对过去情况的推测，用“情态动词 + have +过去分词”。
五．补充强调：推测的句型特点（对某一次的推测句型有两部分：语气和时态）
（1）语气部分：（以下情态动词语气由强至弱）
肯定句：must、may、might（=could）
否定句：can’t（=couldn’t）、mayn’t、mightn’t
疑问句：can、could（语气更加委婉不确定）
（2）时态部分：
be表示对现在的推测 have done表示对过去的推测 be doing表示对正在进行的推测
语气部分写在前时态部分写在后，组合在一起就是推测
六．情态动词表推测的解题关键： 时间决定形式 语气决定选词
解答情态动词表示推测的试题时，一要清楚被推测的时间，二要清楚有无客观事实根据。若有客观事实根据，无论是肯定还是否定的推测，推测语气最强且符合时间要求的为最佳答案；若无客观事实根据，则推测语气符合时间要求的为最佳答案。
情态动词练习题 （一）
1)A computer ___think for itself, it must be told what to do.
A. can’t B. couldn’t C. may not D. might not
2).The fire spread through the hotel very quickly but everyone ____ get out.
A. had to B. would C. could D. was able to
3)--Where is my uncle, Mary
--He ___ in the bedroom.
A. must have been B. must be C. may have been D. should have been
4)Peter ___ come with us tonight, but he isn’t very sure yet.
A. must B. may C. can D. will
5) --That must be a mistake.
--No, it ___ a mistake.
A. must not be B. needn’t be C. can not be D. would not be
6) It’s nearly 7 o’clock. Dad ___ come home soon.
A. can B. could C. would D. should
7)--Are you coming to Jeff’s party
--I’m not sure. I ___ go to the concert tonight.
A. must B. would C. should D. might
8)You ___ return the book now. You can keep it till next week if you like.
A. can’t B. mustn’t C. needn’t
9)Johnny, you___ play with the knife, you ___ hurt yourself.
A. won’t; can’t B. mustn’t; may C. shouldn’t, must D. can’t; shouldn’t
10).I didn’t hear the phone. I ___ asleep.
A. must be B. must have been C. should be D. should have been
11).I didn’t see her in the meeting room this morning. She ___ at the meeting.
A. mustn’t have spoken B. shouldn’t have spoken C. needn’t have spoken D. couldn’t have spoken
12).I can’t find Mr. Smith anywhere in the office building. Where ___ he have gone
A. must B. can C. should D. need
情态动词练习题（二）
1. —______ it be Li Ping who broke the glass
—No. It ______ be Wu Dong who did it.
A. Can; must B. Must; need C. May; must D. Need; can
—Don’t forget to visit me when you come to Beijing.
—_________.
A. I don’t B. I won’t C. I can’t D. I haven’t
3. —Could I use your bike —Yes, surely you ______.
A. might B. will C. can D. should
4. Her brother __ be at home now, because he was seen playing basketball in the stadium just now.
A. mustn’t B. needn’t C. can’t D. shouldn’t
5. —When can you get my car repaired I need it tomorrow morning.
—It ______ be ready by 8:00.
A. can B. need C. might D. should
6. —Are you coming for dinner
—I’m not quite sure. I ______ go to my uncle’s instead.
A. must B. would C. Should D. might
7. Don’t believe him. What he said ______ be true.
A. mustn’t B. needn’t C. shouldn’t D. may not
8. —______ I go home now, sir
—No, you ______. You should finish the composition first.
A. Might; wouldn’t B. May; had better not C. Must; mustn’t D. Need; mustn’t
—______ he use your bike —Certainly. Here is the key.
A. Shall B. Must C. Will D. Does
10. Mr Bush is on time for everything. How ______he be late for the important meeting
A. would B. should C. might D. need
情态动词练习题（三）
1. I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.
A. was able to B. would C. could D. should
2. I promised to get there before 5 o’clock, but now the traffic is still so heavy. They _____ for me impatiently.
A. may wait B. must be waiting C. could wait D. ought to wait
3. I ______ her, but I never could.
A. ought to help B. must help C. must have helped D. ought to have helped
4. The Smiths went to the country for the weekend as they ______ to the office.
A. needn’t have gone B. mustn’t go C. may not go D. didn’t have to go
5. My parents never remember my telephone number, and they always ______ look it up.
A. should B. can C. have to D. must
6. Bobby ______ me your secret, but he meant no harm.
A. shouldn’t have told B. should tell C. mustn’t have told D. could tell
7. If you ______ go, at least wait until the rain stops.
A. can B. must C. should D. would
8. You ______ follow me if I am wrong.
A. must B. don’t have to C. wouldn’t D. ought to
9. _____ you like to have a walk with us this evening
A. Could B. Will C. Would D. Can
10. —Mr Wang, I will go and fetch four chairs for the meeting.
—You ______ fetch four; two will do.
A. won’t B. couldn’t C. shouldn’t D. needn’t
情态动词高考考题:
1. I thought you _____like something to read, so I have brought you some books.
A. may B. might C. would D. must
2. Where is my pen I ____it.
A. might lose B. would have lost C. should have lost D. must have lost
3. I didn’t hear the phone. I ___asleep.
A. must be B. must have been C. should be D. should have been
4. ---There were already five people in the car, but they managed to take me as well.
----It ____a comfortable journey
A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been
5. It’s nearly seven o’clock . Jack ___be here at any moment.
A. must B. need C. should D. could
6. They will ______ run this machine on their own in three months.
A. can B. could C. may D. be able to
7. That big cinema ______ seat 2,000 people.
A. can B. should C. ought to D. is able to
8. — Could I borrow your dictionary
— Yes, of course you _______.
A. might B. will C. can D. should
9. — Might I watch TV after supper
— Yes, you ________.
A. may B. must C. might D. can
10. --Will you stay for lunch
--Sorry, _____. My brother is coming to see me.
A. I mustn’t B. I can’t C. I needn’t D. I won’t
11. --May I pick a flower in the garden
-- ________.
A. No, you needn’t B. Not, please. C. No, you mustn’t D. No, you won’t
12. Put on more clothes. You ________ be feeling cold with only a shirt on.
A. can B. could C. must D. would
13. "Must I drive to his house and pick up the children "
"No, ________ ."
A. you shouldn't B. you might not C. you needn't D. you mustn't
14. We didn't see Tom at the meeting yesterday. He ________it.
A. mustn't have attended B. cannot have attended
C. needn't have attended D. would have not attended
15. We ________ play chess than bridge. Some of us don't know how to play bridge.
A. had better B. would better C. would rather D. had rather
16. There is someone knocking at the door. ________ it be Tom
A. can B. must C. should D. ought to
17. Two years ago, my husband bought me a bicycle. If you live in town, it is often faster than a car and you ________ worry about parking.
A. must not B. may not C. should not D. don't have to
18.--Is John coming by train
-- He should, but he ____ not. He likes driving his car. (2002高考题）
A. must B. can C. need D. may
19.It has been announced that candidates(候选人)____ remain in their seats until all the papers have been collected. (2002上海高考题）
A. can B.will C. may D. shall
20.--I heard they went skiing in the mountains last winter.
--It ____ true because there was little snow there. (2002北京高考题）
A. may not be B. won’t be C. couldn’t be D. mustn’t be
情态动词强化练习 (作业)
1.–May I sit beside you, sir
--- No, you ______. My girlfriend is coming soon.
A. can’t B. mustn’t C. needn’t D. shouldn’t
2.-- _____ I speak to Mary, please
--Sorry, she____ come to the phone because she isn’t in.
A. Might; won’t B. Can’t; mustn’t C. May; can’t D. Couldn’t; shouldn’t
3. --- I want to know if I _ smoke here.
--- No, you____ . Could you see the sign “NO SMOKING” there
A. can; needn’t B. must; can’t C. shall; won’t D. may; mustn’t
4. My wife never remembers my telephone number. She always ____ look it up.
A. must B. should C. would D. has to
5. --- ____ you pass me the English magazine, please
--- Sure. Here you are.
A. Could B. Need C. Must D. Might
6. ---Must I go to work with you
--- No, you_____. Linda ______ go with me.
A. mustn’t; can B. can’t; has to C. daren’t; should D. needn’t; may
7. --- __ I tell Mary the test results
--- No, you____. She’s already got the score.
A. Will; won’t B. Shall; needn’t C. May; mustn’t D. Can; don’t
8. You ____ be careful when crossing here. The traffic lights aren’t working.
A. might B. ought to C. could D. may
9. ---Could I borrow your bicycle
--- Yes, of course you_____.
A.will B. should C. can D. need
10. Joan_____ come with us this afternoon, but she isn’t very sure yet.
A. can B. may C. must D. will
11. I _____ ask you the question because I think I _____ be wrong.
A. daren’t; must B. mustn’t; can C. needn’t; may D. can’t; should
12. It’s nearly eight o’clock. Mike _____ be here at any moment.
A. need B. has to C. should D. can
13. The fire spread through the building very quickly but everyone ____ get out.
A. had to B. would C. could D. was able to
14.---What do you think of this answer
---I don’t think it ____ be right.
A.should B. might C. must D. can
15. --- Is John coming by train
--- He should, but he ___. He likes driving his car.
A. can’t B. needn’t C. may not D. mustn’t
16. He doesn’t have to work tomorrow, but you have got to, ____ you
A. don’t B. haven’t C. haven’t got D. can’t
17. You_____ wake me up when I fall asleep, ______ you
A. haven’t better; have B. would not rather; would
C. had better not; should D. had not better; must
18. ---Why! I couldn’t get you on the phone this morning.
--- We _____ tennis in the yard when you phone me.
could be playing B. must be playing
C. must have been playing D. should have played
19. --- We didn’t see him at the lecture.
--- Neither did anybody else. He _____ it.
A. may not have attended B. mustn’t attend C. can’t have attended D. couldn’t attend
20. ---I came here by taxi and the driver charged me 50 yuan.
---Really You _____ have come by bus.
A. could B. must C. may D. should
21. --- Do you still remember when we went to the Great Wall
--- I can’t remember it well, but _____ it have been sometime last May
A. should B. must C. could D. would
22. ---I wonder why Mr Lin didn’t come to work.
--- He____ have been ill.
A. needn’t B. should C. might D. can
23. ---No one passed the mathematics examination today.
---I guess we ____ the exercise last night.
A. could review B. should review C. might review D. should have reviewed
24. She_____ the hospital so soon, for she hasn’t yet recovered.
A. wouldn’t have left B. shouldn’t have left C. needn’t leave D. hadn’t left
25. Why didn’t you tell me there was no meeting today
I ______ all the way here through the heavy snow.
A. needn’t have driven B. can’t have driven
C. must have driven D. shouldn’t have driven.
26. The book is neither yours nor mine. Whose ______ it be
A. must B. may C. should D. can
27. It is surprising that he ____ have been so foolish.
A. must B. could C. should D. can
28. It must have rained last night, _____ it
A. mustn’t B. can’t C. hasn’t D. didn’t
29.---Will you stay for lunch
--- Sorry, I _____. My brother is coming to see me.
A. mustn’t B. can’t C. needn’t D. won’t
30. --- Are you coming to Jeff’s party
--- I’m not sure. I ____ go to the concert instead.
A. must B. would C. should D. might.
31. Michael ____ be a policeman, for he’s much too short.
A. needn’t B. can’t C. should D. may
32. Mr Bush is on time for everything. How ___ it be that he was late for the ceremony
A. can B. should C. may D. must
33. –I stayed at a hotel while in New York
-- Oh did you You ____ with Barbara.
A. could have stayed B. could stay C. must have stayed D. would stay
34. If I ___go with you, I would feel very glad.
A. can B. could C. should D. may
35.There was a lot of fun at yesterday’s party. You___ come, but why didn’t you
A. must have B. Should C. need have D. ought to have
36.—When can I come for the photos I need them tomorrow afternoon.
--They ___ be ready by 12:00.
A. can B. should C. might D. need
37. I didn’t hear the phone. I ____ asleep.
A. must be B. must have been C. should be D. should have been
38. I ___ do all the difficult work for you.
A. haven’t got to B. not have got to C. have got not to D. have got to not
39. Sorry I’m late. I ___ have turned off the alarm clock and gone back to sleep again.
A. might B. should C. can D. will
40. If I had time, I ____ go with you.
A. can B. will C. may D. might
参考答案
练习题
1-5 ADBBC 6-10 DDCBB 11-12 DB
高考考题
1-5 BDBDC 6-10 DACAB 11-15 CCCBA 16-20 ADDDC
情态动词强化练习
1-5 ACDDA 6-10 DBBCB 11-15 ACDDC 16-20 BCCCD
21-25 CCDBA 26-30 DCDBD 31-35 BAABD 36-40 BBAAD
4
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