高中情态动词用法详解
高中情态动词用法详解 LEKIBM standardization office【IBM5AB- LEKIBMK08- LEKIBM2C】
情态动词
一、情态动词的特点:
1.没有人称和数的变化。
2. 有些情态动词有过去式的变化:
. will → would , can → could , may→ might , dare → dared
二、情态动词的否定式:
情态动词+ not +动词原形
can not: can't , must not: mustn't , need not : needn't
三、情态动词的用法及相互区别, 是考试的内容之一。
1. can , be able to be able to 表示经过努力后, 能够做到; be able to 有多种形式的变化。
can
1). 表示体力或脑力方面的能力;
2). 表示允许、可能性。
could 是can的过去式, 表示过去有能力及过去存在的可能性 ; 用于疑问句表示委婉地提出问题。
1) The fire spread through the hotel very quickly but everyone ____ get out.
A. had to
B. would
C. could
D. was able to
2) -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
表示询问或说明一件事可不可做; 表示某事有可能发生。might是may的过去式; 用在疑问中比may委婉、客气。
1) -May I take this book out of the reading-room?
-No, you mustn't. ( Yes, you may.)
2) -Might I make a suggestion -Yes, you may.
3. must
1). 表示必须要做的事: 必须
2) 表示很有把握的推断: 一定, 准是。have (has)to : have (has)got to
必须, 不得不。
过去式: had to
3) -Must I get to the station before three o'clock?
-Yes, you must. ( No, you needn't. )
4) I'm afraid you will have to wait a while.
5) She must be in the classroom now.
6) Mary ____ be in Paris, I saw her in town only a few minutes ago.
A. mustn't
B. shouldn't
C. can't
D. may not
4. shall
1) 在疑问句中, 用于第一、三人称表示说话人征求对方的意见或向对方请求。
2) 用于二、三人称,表示说话人给对方的命令、警告、允诺等概念。
1) - Shall I place an order with you now -No, you needn’t.
-Shall he turn down the radio a bit -
Yes, please.(No, please don't.)
2) You shall have the English book as soon as I finish it.
3) Everything that he owns shall be taken away from him.
4) Your brother seldom comes to see you, ____
A. does he
B. doesn't he
C. will he
D. isn't he
5) It's a fine day. Let's go fishing, ____
A. won't we
B. will we
C. don't we
D. shall we
5. should 应该 ; 应当
1) You should listen to the doctor's advice.
2) You should study the article carefully.
6. will, would
1) 在疑问句中用于第二人称,表示说话人向对方提出请求或询问。用would语气更加婉转。
2) will 表示现在的习惯性动作或状态; would 表示过去的习惯性动作或状态。
3) will 用于各种人称, 表示意志、意愿、决心、允诺; would 表示过去时间的意志、意愿、......。
(1) Don't smoke in the meeting room, ___ you
A. do you
B. will you
C. can you
D. could you
-Will you come with me -Yes, I will.(I am sorry , I can't.)
(2) -Would you tell us something about yourself -Yes, I will.
(3) - It's my birthday tomorrow. Don't forget to come to my party.
- _____ .
A. I don't
B. I won't
C. I can't
D. I haven't
7. ought to 应该; 应当
1) You oughtn't to smoke too much.
2) She ____ for what she has done.
A. ought to praise?
B. ought be praised
C. ought to have praised?
D. ought to be praised
8. dare
9.
dare to come 2. dare come
1) He dare not tell the truth.
2) He doesn't dare to come out at night.
3) I don't know whether he ____ try.
A. dare
B. needs
C. wants
D. is allowed
9. need
1). 作为情态动词:必须
2). 作为实义动词: 需要
A.主语是人 need( to do something ; to be done by somebody)
B. 主语是事物 need ( doing; to be done)
1) -Do they need to take any books with them?
-No, they don't need to.
2) -Need we buy any new equipment -No, we needn't.
3) This farm tool needs repairing.
This farm tool needs to be repaired.
4) -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
5) It's a fine day. You ____ take a raincoat with you.
A. can't
B. mustn't
C. needn't
D. may not
情态动词 + 不定式的完成式是高考的考试要点
1. can(could) + have + 过去分词
2. can't (couldn't) + have + 过去分词
3. must + have + 过去分词
4. may (might) + have + 过去分词
5. needn't + have + 过去分词
6. should (ought to) + have + 过去分词
7. shouldn't (oughtn't to) + have + 过去分词
1). Can (Could) they have completed their work so soon
2) She can't (couldn't) have make a mistake.
3) Since the ditch is full of water , it ____ (rain) last night.
4) He said that she might have misunderstood him.
1 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，后面只能接不带to 的不定式。
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。
2 比较can 和be able to
1）can could 表示能力；可能 (过去时用could),
只用于现在式和过去式(could)。be able to可以用于各种时态。
They will be able to tell you the news soon. 他很快就能告诉你消息了。
2）只用be able to
a. 位于助动词后。
b. 情态动词后。
c. 表示过去某时刻动作时。
d. 用于句首表示条件。
e. 表示成功地做了某事时，只能用was/were able to，不能用could。
He was able to flee Europe before the war broke out.
= He managed to flee Europe before the war broke out.
注意：could不表示时态
1）提出委婉的请求，（注意在回答中不可用could）。
--- Could I have the television on?
--- Yes, you can. / No, you can't.
2）在否定，疑问句中表示推测或怀疑。
He couldn't be a bad man.
他不大可能是坏人。
3 比较may和might
1）表示允许或请求；表示没有把握的推测；may 放在句首，表示祝愿。
May God bless you!
He might be at home.
注意： might 表示推测时，不表示时态。只是可能性比may 小。
2）成语： may/might as well，后面接不带to 的不定式，意为"不妨"。
If that is the case, we may as well try.
典型例题
Peter ___come with us tonight, but he isn't very sure yet.
A. must
B. may
C. can
D. will
答案B. 表可能性只能用may.此句意可从后半句推出。
4 比较have to和must
1)两词都是'必须'的意思，have to 表示客观的需要， must 表示说话人主观上的看法，既主观上的必要。
My brother was very ill, so I had to call the doctor in the middle of the night.我弟弟病得很厉害，我只得半夜里把医生请来。(客观上需要做这件事)
He said that they must work hard. 他说他们必须努力工作。（主观上要做这件事）
2)have to有人称、数、时态的变化，而must只有一种形式。但must 可用于间接引语中表示过去的必要或义务。
He had to look after his sister yesterday.
3）在否定结构中： don't have to表示"不必"
mustn't表示"禁止"，
You don't have to tell him about it.你不一定要把此事告诉他。
You mustn't tell him about it.你一定不要把这件事告诉他。
5 must表示推测
1) must用在肯定句中表示较有把握的推测，意为"一定"。
2) must表对现在的状态或现在正发生的事情的推测时， must 后面通常接系动词be 的原形或行为动词的进行式。
You have worked hard all must be tired.你辛苦干一整天，一定累了。（对现在情况的推测判断）
He must be working in his office. 他一定在办公室工作呢。
比较：
He must be staying there.
他现在肯定呆在那里。
He must stay there.
他必须呆在那。
3) must 表示对已发生的事情的推测时，must 要接完成式。
I didn't hear the phone. I must have been asleep.我刚才没有听到电话，我想必是睡着了。
4) must表示对过去某时正发生的事情的推测，must 后面要接不定式的完成进行式。
---Why didn't you answer my phone call?
---Well, I must have been sleeping, so I didn't hear it.
5) 否定推测用can't。
If Tom didn't leave here until five o'clock, he can't be home yet.如果汤姆五点才离开这儿，他此时一定还未到家。
6 表示推测的用法
can, could, may, might, must 皆可表示推测，其用法如下：
1）情态动词+动词原形。
表示对现在或将来的情况的推测，此时动词通常为系动词。
I don't know where she is, she may be in Wuhan.
2）情态动词+动词现在进行时。
表示对现在或将来正在进行的情况进行推测。
At this moment, our teacher must be correcting our exam papers.
这时，我们老师想必在批改试卷。
3）情态动词+动词完成时。
表示对过去情况的推测。
We would have finished this work by the end of next December.
明年十二月底前我们很可能已完成这项工作了。
The road is wet. It must have rained last night.
地是湿的，昨天晚上一定下雨了。
4）情态动词+动词的现在完成进行时。
表示对过去正在发生事情的推测。
Your mother must have been looking for you.
你妈妈一定一直在找你。
5）推测的否定形式，疑问形式用can't, couldn't表示。
Mike can't have found his car, for he came to work by bus this morning.
迈克一定还没有找回他的车，因为早上他是坐公共汽车来上班的。
注意：could, might表示推测时不表示时态，其推测的程度不如can, may。
7 情态动词+ have +过去分词
1) may(might) have + done sth, can (could) have + done sth表示过去，推测过去时间里可能发生的事情。
Philip may (might) have been hurt seriously in the car accident.
Philip can (could) have been hurt seriously in the car accident.
2)must have +done sth，对过去时间里可能发生的事情的推测，语气较强，具有"肯定"，"谅必"的意思。
---Linda has gone to work, but her bicycle is still here.
---She must have gone by bus.
3) ought to have done sth, should have done sth
本应该做某事，而事实上并没有做。否定句表示"不该做某事而做了"。
You ought to (should) have been more careful in this experiment.
He ought not to have thrown the old clothes away.（事实上已扔了。）
ought to 在语气上比should 要强。
4) needn't have done sth本没必要做某事
I dressed very warmly for the trip, but I needn't have done so. The weather was hot.
5) would like to have done sth本打算做某事
I would like to have read the article, but I was very busy then.
8 should 和ought to
should 和ought to 都为"应该"的意思，可用于各种人称。
---Ought he to go?
---Yes. I think he ought to.
表示要求，命令时，语气由 should（应该）、had better最好）、must（必须）渐强。
9 had better表示"最好"
had better 相当于一个助动词，它只有一种形式，它后面要跟动词原形。
had better do sth
had better not do sth
It is pretty cold. You'd better put on my coat.
She'd better not play with the dog.
had better have done sth表示与事实相反的结果，意为"本来最好"。
You had better have come earlier.
10 would rather表示"宁愿"
would rather do
would rather not do
would rather… than…宁愿……而不愿。
还有would sooner, had rather, had sooner都表示"宁愿"、"宁可"的意思。
If I have a choice, I had sooner not continue my studies at this school.
I would rather stay here than go home. = I would stay here rather than go home.
典型例题
----Shall we go skating or stay at home?
----Which ___ do?
A. do you rather
B. would you rather
C. will you rather
D. should you rather
答案B。本题考查情态动词rather的用法，would rather +do sth 意为"宁愿"，本题为疑问句，would 提前，所以选B。
11 will和would
注意：
1）would like； Would like to do = want to 想要，为固定搭配。
Would you like to go with me?
2）Will you…Would you like…表示肯定含义的请求劝说时，疑问句中一般用some, 而不是any。
Would you like some cake?
3）否定结构中用will，一般不用would, won't you是一种委婉语气。
Won't you sit down
12 情态动词的回答方式
问句肯定回答否定回答
Need you…Yes, I must.No,I needn't
Must you…/don't have to.
典型例题
1）---Could I borrow your dictionary?
---Yes, of course, you____.
A. might
B. will
C. can
D. should
答案表示委婉的语气，并不为时态。答语中of course，表示肯定的语气，允许某人做某事时，用can和 may来表达，不能用could或might。复习： will 与you连用，用来提出要求或下命令。should与you 连用，用来提出劝告。
2）---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
答案A。needn't 不必，不用。 wouldn't 将不, 不会的。 mustn't 禁止、不能。 shouldn't不应该。本题为不需要，不必的意思，应用needn't。
3）---Don't forget to come to my birthday party tomorrow.
---______.
A. I don't
B.I won't
C. I can't
D. I haven't
答案B.will既可当作情态动词，表请求、建议、也可作为实义动词表"意愿、意志、决心"，本题表示决心，选B。
13 带to 的情态动词
带to 的情态动词有四个：ought to, have to, used to, be to, 如加上have got to ,(=must), be able to，为六个。它们的疑问，否定形式应予以注意：
Do they have to pay their bill before the end of the month?
She didn't use to play tennis before she was fourteen.
You ought not to have told her all about it.
Ought he to see a heart specialist at once.
ought to 本身作为情态动词使用。其他的词作为实义动词使用，变疑问，否定时，须有do 等助动词协助。
典型例题
Tom ought not to ___ me your secret, but he meant no harm.
told telling D. having told
答案A。由于后句为过去时，告诉秘密的动作又发生在其前因，此地应用过去完成时，但它在情态动词 ought to 后，所以用have。
14 比较need和dare
这两词既可做实义动词用，又可做情态动词用。作为情态动词，两者都只能用于疑问句，否定句和条件句。 need 作实义动词时后面的不定式必须带to，而dare作实义动词用时, 后面的to 时常可以被省略。
1) 实义动词： need（需要, 要求）
need + n. / to do sth
2) 情态动词： need，只用原形need后加do，否定形式为need not。
Need you go yet
Yes, I must. / No, I needn't.
3) need 的被动含义：need, want, require, worth（形容词）后面接doing也可以表示被动：
need doing = need to be done
练习.情态动词
1. She passed me in the street without speaking, she ____ me.
A. can't see?
B. can't have seen
C. shouldn't have seen?
D. shouldn't see
2. -They 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
3. He ____ you more help even though he was very busy.
A. might have given
B. might give
C. may have given
D. may give
4. She quickened her pace in order that she ____ with the others.
A. may catch up?
B. might catch up
C. could have caught up?
D. might have caught up
5. There was plenty of time, she ____ .
A. mustn't have hurried?
B. couldn't have hurried
C. must not hurry?
D. needn't have hurried
6. I didn't hear the phone, I ____ asleep.
A. must be
B. must have been
C. should be
D. should have been
7. He was a good runner so he ____ escape from the police.
A. might
B. succeeded
C. would
D. was able to
8. We ____ last night, but we went to the concert instead.
A. must have studied
B. might study
C. should have studied
D. would study
9. The young man has made so much noise that he ____ not have been allowed to attend the concert.
A. could
B. must
C. would
D. should
10. A solider got him out of danger. He ____ hurt.
A. may not
B. can have got
C. might have got
D. might get
11. -Could I use your pen
-Yes, of course you ____ .
A. must
B. could
C. can
D. might
12. 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
13. Sir, you ___ be sitting in this waiting room. It is for this woman and children only.
A. oughtn't to
B. can't
C. won't
D. needn't
14. I ____ tell her the truth.
A. cannot help
B. can't but
C. may not help
D. could but
15. I have neither a raincoat nor an umbrella. That's why I ____ wait until the rain stops.
A. must
B. should
C. ought to
D. have to
16. A traffic accident happened yesterday and a driver ____ .
A. may hurt
B. may be hurting
C. may have been hurt?
D. may be hurt
17. A dog ran in front of my mother's car and she ____ stop very quickly.
A. ought to
B. had better
C. must
D. had to
18. - I stayed at a hotel while in New York .
-Oh , did you You ____ with Barbara .
A. could have stayed
B. could stay
C. would stay
D. must have stayed
19. The plant is dead. I ___ it more water.
A. will give
B. would have given
C. must give?
D. should have given
20. A computer ___ think for itself ; it must be told what to do.
A. can't
B. couldn't
C. may not
D. might not
21. It's nearly seven o' clock. Jack ___ be here at any moment.
A. must
B. need
C. should
D. can
22. Tom ought not to ___ me your secret, but he meant no harm.
A. have told
B. tell
C. be telling
D. having told
23. -Alice, you feed the bird today, ____
-But I fed it yesterday.
A. do you
B. will you
C. didn't you
D. don't you
24. -Do you think I could borrow your dictionary
- ____ .
A. Yes, you may borrow?
B. Yes, you could
C. Yes, help yourself?
D. Yes, go on
25. I was really anxious about you . You ____home without a word.
A. mustn't leave?
B. shouldn't have left
C. couldn't have left?
D. needn't leave
Key:
1-5 BDABD 6-10 BDCDC 11-15 CBABD
16-20 CDADA 21-25 CAACB
全国各省市高考试卷中的情态动词试题
1 A(全国卷I）24. There's no light on -- they______ be at home.
A. can't
B. mustn't
C. needn't
D. shouldn't
2 (全国卷2)10. We hope that as many people as-possible _______ join us for the picnic tomorrow.
A. need
B. must
C. should
D. can
3 (北京卷)25. -- What's the name?
--Khulaifi. _______ I spell that for you?
A. Shall
B. Would
C. Can
D. Might
4 (上海春)26. 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
5 (天津卷)11. 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
6 (四川卷)32. ---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
7 (江西卷)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
8 (陕西卷) you worked late yesterday, you _________ have come this morning.
A. mayn't
B. can't
C. mustn't
D. needn't
9 (福建卷) 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
10 (湖北卷)31. __________ 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
11 (湖南卷) 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
12 (江苏卷)21. --- I think I'll give Bob a ring.
--- You _______. You haven't been in touch with him for ages.
A. will
B. may
C. have to
D. should
13 (广东卷)22. -- Must he come to sign this paper himself?
-- Yes, he___.
A. need
B. must
C. may
D. will
14 (浙江卷)19. --- Could I have a word with you, mum?
--- Oh dear, if you ________.
A. can
B. must
C. may
D. should
15 (山东卷)30. --May I smoke here
--If you ____, choose a seat in the smoking section.
A. should
B. could
C. may
D. must
Keys:
1-10 ADCAB CCDCB 11-15 ADBBD
高考英语陷阱题总结归纳——情态动词
◆典型陷阱题分析◆
1. “Mike is often absent from class.” “Tell him he _____ answer for it if he goes on behaving like that.”
A. shall
B. will
C. would
D. can
【陷阱】几个干扰项均有可能误选。
【分析】最佳答案选用作情态动词主要有以下两个用法：
（1）用于疑问句中征求意见。如：
Shall I help you 要不要我帮帮你？
Shall I open the window 要我把窗子打开吗？
（2）用于陈述句中表示允诺、告诫、警告、威胁、命令、规定、必然性等（可用于各类人称）。如：
You shall suffer for this. 你会为此事吃苦头的。（表威胁）
Each competitor shall wear a number. 每个参赛者要戴一个号码。（表规定）
You shall hear everything as soon as you come. 你一来就可听到所有情况了。（表允诺）
请做以下试题（答案均选 shall）：
（1）“I promise that she _____ get a nice present on her birthday.” “Will it be a great surprise to her”
A. should
B. must
C. would
D. shall
2. You _______ pay too much attention to your reading skill, as it is so important.
A. cannot
B. shouldn’t
C. mustn’t
D. needn’t
【陷阱】几个干扰项均有可能误选。
【分析】最佳答案选…too…是英语中一个十分有用的表达，意为“不可能太……，无论怎样……也不算过分，越……越……”。如：
You can’t be too careful. 你越仔细越好。
You can’t praise the too much. 这本书值得大加赞扬。
We cannot work too much for the people. 我们为人民做工作是不可能做过头的。
A woman cannot have too many clothes. 女人买的衣服再多也不算多。
注：有时也可用 can never, impossible 等与too连用来表示类似意思。如：
It is impossible to get there too soon. 去那儿越早越好。
3. “Is John coming by train” “He should, but he _____ not. He likes driving his car.”
A. must
B. can
C. need
D. may
【陷阱】可能误选B或C.
【分析】最佳答案为表推测，may not 意为“可能不（会坐火车来）”。句中的 He should 为He should come by train 之省略，由于其后出现转折连词 but，说明语意有变化，再结合下文的 He likes driving his car，便可决定此题选D.注意，不能选B，因为can表示推测时通常不用肯定陈述句。
4. “I heard they went skiing in the mountains last winter.” “It ____ true because there was little snow there.”
A. may not be
B. won’t be
C. couldn’t be
D. mustn’t be
【陷阱】几个干扰项均有可能误选。
【分析】此题最佳答案为C，主要由下文的 because there was little snow there 这一语境所决定，既然“没下什么雪”，那么“滑雪”就应是“不可能”，所以选couldn’t be，即选C.
5. “Do you think he is lazy” “I _____ so once, but I don’t now.”
A. may have thought
B. can have thought
C. may think
D. might think
答案选A.从答话人的语境可知，空格处的意思“曾经这样想过”，即对过去情况作推测，故应用“情态动词+动词完成式”；又因为 can 表推测不用于肯定句，故选A.请看类例：
Their answers are exactly the same — one of them ______ from the other.
A. must copy
B. must have copied
C. should copy
D. should have copied
答案选B，既然两人的答案完全一样，说明“抄袭”已经发生，故用“情态动词+动词完成式”，根据句意，应选B而不能选D.
6. You _____ be right, but I do n’t think you are.
A. can
B. could
C. must
D. should
【陷阱】几个干扰项均有可能误选。
【分析】从语境上看，C、D不宜选，在剩下的A和B中，许多同学想当然地选了A，认为整个句子为现在时态，所以选can，而不选过去式 could，但是最佳答案却是B而不是A.按照英语语法，情态动词can 用于推测表示可能性时，通常只用于否定句或疑问句中，而不用于肯定句中；但 could 用于表推测时，却不仅可用于否定句和疑问句，也可用于肯定句，且此时的 could 并不是 can 的过去式，与 can 也没有时间上的差别，只是 could 比 can语气更委婉，所以答案选B.注：can 在以下特殊情况下，也可用于肯定句。一是表示抽象的可能性，即从理论上或逻辑上分析是可能的，但是实际上未必会发生。如：Anyone can make mistakes. 任何人都可能会犯错误。二是后接“be （get, seem, become）＋形容词”，表示“有时会”、“时常会”等。如：My father can be very unreasonable. 我父亲有时候很不讲道理。
◆精编陷阱题训练◆
1. “I thought you wouldn’t mind.” “Well, as a matter of fact I don’t, but you _____ me first.”
A. should ask
B. should have asked
C. must ask
D. must have asked
2. “I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
A. must be
B. must have been
C. might be
D. can have been
3. That car nearly hit me; I ______.
A. might be killed
B. might have been killed
C. may be killed
D. may been killed
4. It’s a very kind offer, but I really _____ accept it.
C. can’t
D. don’t
5. The police still haven’t found her, but they’re doing all they _____.
A. may
B. can
C. must
D. will
6. You _____ practise the drums while the baby is sleeping.
A. needn’t
B. mightn’t
C. mustn’t
D. won’t
7. You _____ him the news; he knew it already.
A. needn’t tell
B. needn’t have told
C. mightn’t tell
D. mightn’t have told
8. As she’s not here, I suppose she _____ home.
A. must go
B. must have gone
C. might go
D. might be going
9. Are you still here You ______ home hours ago.
A. should go
B. should have gone
C. might go
D. may have gone
10. “I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
A. must be
B. must have been
C. might be
D. can have been
11. I _______ have met him a long time ago. Both his name and face are very familiar.
A. may
B. can
C. would
D. should
13.“Shall we go shopping” “Sorry, we _______ buy anything now because none of the shops are open.”
A. mustn’t
B. needn’t
C. can’t
D. shouldn’t
14. They often go to the restaurants for meals. They _____ be very poor.
A. mustn’t
B. can’t
C. may not
D. needn’t
15. I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.
C. needn’t
D. couldn’t
17. He ______ the test again, in which case, his mother will be very disappointed.
A. might fail
B. must have failed
C. should fail
D. could have failed
18. “Why didn’t she come to the meeting yesterday” “I’m not so sure. She ______ ill.”
A. should be
B. should have been
C. must be
D. might have been
19. Why did you just sit and watch You _______ me.
A. could help
B. should help
C. could have helped
D. must have helped
20. “You ______ your teacher for help. He is kind-hearted.” “Yes. A whole day _______.”
A. can ask, will waste
B. must have asked, had wasted
C. could have asked, was wasted
D. shouldn’t have asked, would be wasted
21. “Is there a flight to London this evening” “There _______ be.I’ll phone the airport and find it out.”
A. must
B. might
C. would
D. can
22. “Show me your permit, please.” “Oh, it’s not in my pocket. It ______.”
A. might fall out
B. could fall out
C. should have fallen out
D. must have fallen out
23. “Look at these tracks. It _______ be a wolf.” “Don’t be so sure. I think it _______ be a fox.”
A. must; could
B. may; might
C. need; must
D. could; need
25. “Did Jim come” “I don’t know. He _______ while I was out.”
A. might have come
B. might come
C. mush have come
D. should have come
◆答案与解析◆
(英语)高一英语情态动词解题技巧及练习题(含答案)
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英语情态动词的用法大全附解析
英语情态动词的用法大全附解析 一、初中英语情态动词 1．—We've got everything ready for the picnic. —Do you mean I __________ bring anything with me? A. can't B. mustn't C. couldn't D. needn't 【答案】 D 【解析】【分析】句意：—我们已经为野餐准备好了一切。—你的意思是我不必带任何东西吗？A. can't 不能；B. mustn't 表示禁止，一定不要；C. couldn't不能，表示过去时态；D. needn't不必。结合句意，故选D。 【点评】本题考查情态动词的用法。 2．—How amazing this robot is! —Wow, it has video cameras in its eyes, so it “see” and interact with pe ople. A. may B. can C. must D. should 【答案】 B 【解析】【分析】句意：—这个机器人多么惊人啊！—哇，在它的眼睛里有摄像机，因此它能看见和人打交道。A. may 可以，可能；表示许可，B. can 能；表示能力，C. must 必须；D. should应该；根据it has video cameras in its eyes,可知是有能力看见，故选B。 【点评】考查情态动词辨析。熟记情态动词的含义和用法。 3．—Where is George? —He _______ be here just now. His coffee is still warm. A. need B. can't C. must D. shouldn't 【答案】 C 【解析】【分析】句意：——乔治在哪里？——他刚才一定在这里，他的咖啡还是热的。A. need需要； B. can't 不能，不可能（表示推测）； C. must 必须，一定（表示推测）； D. shouldn't不应该；根据His coffee is still warm.可知表示肯定推测一定在这儿；故答案为C。 【点评】考查情态动词。掌握情态动词表推测时的意义和用法。 4．— Sorry, I forgot to take money with me. Maybe I can't buy the book you like. — Mum, you ______ worry about it. We can pay by Alipay （支付宝）. A. can't B. needn't C. mustn't D. shouldn't 【答案】 B 【解析】【分析】句意：——对不起，我忘记带钱了。也许我不能买你喜欢的书。——妈妈，你不用担心。我们可以用支付宝支付。A. can't不能，指不允许或否定推测；B. needn't 不需，指没必要；C. mustn't不能，表禁止；D. shouldn't不应该，表建议。根据句意语境，本句是说妈妈不需要担心，故答案为B。 【点评】考查情态动词。理解句意并掌握情态动词的意义和用法区别。
英语情态动词用法详解
英语情态动词用法详解 一、单项选择情态动词 1．Look! There are so many mistakes in your composition. You ________ have fixed full attention on it. A．can B．should C．need D．might 【答案】B 【解析】 【详解】 考查情态动词。句意：看！你的作文里有那么多的错误。你本应该把所有的注意力都集中在它上面的。表示“本应该做但实际上没有做”应该用should have done结构，can have done 表示可能；need表示需要；might have done表示可能做过某事；故选B。 2．---Hi, Johnson, any idea where Susan is? ---It is class time, so she __________ in the classroom now. A．can be B．must have been C．might have been D．should be 【答案】D 【解析】 考查情态动词的用法。A. can be可能，可以是；B. must have been一定（对过去事实肯定的推测）；C. might have been可能（对过去事实肯定的推测）；D. should be应该是。句意：—知道苏珊在哪里吗？—现在是上课时间，她应该在教室里。故答案选D。 3．The room is so clean. He ________ have cleaned it yesterday evening. A．will B．need C．can D．must 【答案】D 【解析】 【详解】 考查情态动词表推测。句意：房间如此干净，他一定是昨天晚上打扫过了。must have done 表示对过去发生的事情有把握的猜测，意思是“一定（做过）”，故D项正确。 4．— Excuse me, do you mind if I open the window? — Well, if you __________. I can put on more clothes. A．can B．may C．must D．shall 【答案】C 【解析】
高中英语情态动词的常用用法归纳(超详细)
英语情态动词的常用用法归纳 1概念 在英语的动词当中，凡是用来刻画人的情感动作的动词，我们称之为情态动词，情态动词有着具体的汉语意思。但却不能独立作谓语和后面的行为动词一起构成和成谓语。区别于其他的行为动词，情态动词没有人称和数的变化，有少数的时态现象——一般时、过去时、将来时等。 2应用 一.Can 1、can表示说话人的能力，常译作能、能够、会。 eg：I can speak English very well. Can you swim across the river? Yes, I can/ No, I can’t. 2、can可以用来表示说话人的客观可能性，通常应用于否定疑问句式中。 eg：People can’t live without water. Can you finish the jobs in three hours? Can this be true. 3、在口语里，can表示允诺、允许、可以。等于may，但是may的语气
重于can。 eg：Can I come in? = May I come in? Can I use your bike? = May I use your bike ? *表示允许可以may mightcould can 4、在“过去时”的语境里，通常用could 表示它的过去式，用be able to 短语（was/were） 而could通常用来在一般现在时的语境里表示委婉语气 eg：Could（can）you show me the way to the supermarket? 5、can表示猜测 （1）对现在状态的一种猜测，只能用在否定疑问句中。 eg：Zhang can’t be ill really? This can’t be done by him. （2）对现在动作的猜测 eg: The boy can’t be telling lies. Mary works so hard, now, she can’t be sleeping.
高中英语情态动词讲解
一、情态动词用法 1.情态动词的具体用法 A.能干can/could do; (经过努力)能干be able to (have the ability to do, be capable of doing) B.必须干/不得不干must / have to do; 不许干：mustn’t do C.(经允许)可以干may/ might do; 不可以干：may not do D.应该干should /ought to/ be to/ be supposed to do E.将要干will/would/shall do; (按法律，许诺，命令，威胁，第二三人称中) 将干shall do F.(某段具体时间)常干would do; (现在不做，过去常做) used to do G.宁愿做would rather do; 最好做had better do; 不妨做might as well do H.需要做need do ; 敢做dare do 2.情态动词表猜测 A.一定是must be ;一定已经干了某事must have done sth.; 一定不是can’t/couldn’t be ; 一定没干过某事can’t/couldn’t have done sth. B.可能（不）是may/might (not ) be; 可能已经（没）干某事may/might (not) have done sth. 3.情态动词与虚拟语气 A.本应该干某事（带有批评责备之意）should/ ought to have done sth.；本不该做了某事而做了shouldn’t /oughtn’t to have done sth B.本不必干某事needn’t have done sth. C.本可以干某事can/could have done sth. D.本（不会）干某事would (not) have done sth. E.真希望做过某事would like to have done sth. F.Should 在表建议的从句中： (a)It’s high time that sb. should do/did sth (b)It’s important sb. (should) do sth. (c)I suggest sb. (should ) do sth. 二、理解情态动词 Lucy is an outgoing lady. She can play many kinds of musical instruments. Actually, she could play the piano when she was 8 years old. Lucy also keeps taking exercise every day. She says that she has to do some sports because she must keep slim. “You shall get fat soon if you don’t take exercise every day.” She usually says to her friends. As for her, an elegant lady should try to keep fit. However, last week, she found that she might put on weight and she worried and decided to lose her weight. And these days she is always thinking that she may succeed soon if she tries all her best. However, she is always lack of time because she ought to take care of her children. One night after supper, she walked quickly in order to go dancing at the Tomorrow Park and she was late. On her way, she thought that the dancing must have
高中英语情态动词的用法详解
高中英语情态动词用法归纳与练习 A: can / could = be able to 1 表示能力两种时态can (could)，其他时态要用be able to的形式 He can speak French. Was/were able to 可以表示成功做成某事的含义* managed to do / succeeded i n doing With our help, he was able to build the house. 2 表示请求或许可Could 比Can 更加客气* may Can I go now? Yes, you can. 3 表示推测或可能性，常用于否定句和疑问句 Can he be at school? Today is Sunday. He can't be at school. Can’t couldn’t/ Can ? Could? have done There is no light in the room. Can she have gone to bed? She can’t have gone to school----- it’s Sunda y. Could have done 可用在肯定句中表示过去存在的可能性* may have done She could have gone out with some friends yesterday. Could have done 可以表示虚拟语气 某事可能发生（并没有发生） It was silly to throw the TV out of the window. It could have hit somebody. 批评某人没有完成某事(本可以做某事) You are late again. You could have got up earlier. 4 can 表示客观上的可能性* Anybody can make mistakes. B: may and might 1 表示请求和允许类似用法can could(更加口语化) May I watch TV now? Yes, you may. 2 表示可能性; 猜测might比may更加不确定may/might have done 对过去的揣测* He may be busy these days. May not 可能不；不可能；一定不可 3 表示祝愿Wish you success! May you succeed!* C: must and have to 1 表示必须；一定要可以用have to 代替 must 现在；将来的必须而且是主观看法* have to 有多种时态而且强调客观情况 I really must stop smoking now. I had to leave early because I wasn’t feeling well. Must I come here?
高中情态动词讲解
情态动词专项讲解 1. China is developing its high-speed train technology fast, so it _____be good enough to catch up with the best. A. may B. might C. must D. should 2. Then some other interesting reasons appear, such as “It's so smoggy that I ______find my way to office." A. mustn’t B. won’t C. can’t D. shouldn’t 3. "The world is big, and I want to see it," wrote a teacher in her resignation letter. _____ you quit your job to travel the world A. Must B. Might C. Should D. Would 【答案揭晓】CCD 一、情态动词的定义 情态动词是一种本身有一定的词义，但要与动词原形或其被动语态一起使用，给 谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可 能.应该或必要等。情态动词后面加动词原形。 1. No driving electric motorbikes in some areas is a rule that we shall obey in Fuzhou.
必须.一定（法律.法规等）动 词原形 2. Women who are exposed to second-hand smoke during their pregnancy can be at risk of abortion.能，会，可以(表示有能力或机会) 动词原形 二、常考情态动词的关键用法 (一) can 1. －Jim，it is time you went to bed．You need to get up early tomorrow. －It’s not f air，Mary can stay up till ten hut I have to go to bed at eight. 可以(表示允许) it were not for the fact that she can't sing，I would invite her to the party. 能，会，可以(表示有能力) 3. Luckily, iron can be reworked and mistakes don't have to be thrown away 能够，可以(表示某事物的特点) can be really difficult to get along with at times even though he’s a
(完整word版)高中英语情态动词详细讲解及例句
一、情态动词无人称和数的变化，不能单独做谓语，只能和行为动词或状态动词构成谓语 二、情态动词分为：情态助动词：can(could)、may(might)、must、have to (had to )、ought to 、 shall(should)、will(would) 12个 半情态助动词：dare、need、used to、had better、would better(5个) 三、情态助动词 1.can and could 1)ability：be able to do /manage to do/succeed in doing sth. eg.The army can defeat their enemy. eg.The army is able to defeat their enemy. eg.The army succeed in defeating their enemy. 2)permission:eg.Can I smoke here? eg.You can’t smoke here. 3)possibility:用在否定句、疑问句、感叹句中- eg.This can’t be done by him. 当被用在肯定句中时，表达的是理论上的可能性，不涉及是否真的会发生 eg.even expert drives can make mistakes. 要表达现在或者将来的可能性，用may /might或could. eg.I may leave for Beijing next month. 但在特殊疑问句中，或与副词hardly、only等连用的陈述句中表达可能 性只用can/could Eg.where can the noise be coming from? eg.It can hardly be the postman,he comes only in the morning. 4)有时会：the road can be blocked. 5)could 表示轻微的怀疑或委婉的看法 I’m sorry I couldn’t lend you the book now. His story could be true,but I hardly think it is. 6)could 表示委婉的请求，主要用于疑问句，不用于肯定句 Could you lend me some money? Yes,I can /No,I am afraid not. 7)could 的常用结构：could+动词+比较级“非常，再.....不过了” It couldn’t be better. Couldn’t +过去分词+比较级“非常，再.....不过了” They couldn’t have tried harder to make me eel welcome. Can’t..too..=can never too“无论怎样...也不为过,越...越好” I can’t thank you too much.I owe my progress to you. Can’t (help/choose) but do/can but +动词原形“不得不，只好” We can but agree with him. Can’t help doing 忍不住，不得不 I can’t help laughing Can’t be (it) 控制不住，没有办法 It can’t be helped Can’t....without 没有...就不能 One can’t succeed without perseverance.
高中英语语法总结大全之情态动词
高中英语语法总结大全之情态动词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,后面只能接不带to 的不定式。 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。 比较can 和be aｂlｅto １)cancould 表示能力；可能(过去时用ｃould)， 只用于现在式和过去式（ｃould)。be ａble ｔｏ可以用于各种时态。 Tｈey will ｂe aｂlｅｔo ｔeｌｌyou tｈe ｎews ｓｏon．他很快就能告诉你消息了。 ２）只用bｅablｅto a. 位于助动词后。 b.情态动词后。 c．表示过去某时刻动作时。 d. 用于句首表示条件。 ｅ. 表示成功地做了某事时,只能用wａs/were able to, 不能用cｏuld。 Ｈeｗas ablｅto ｆlee Eurｏpｅbefｏre tｈeｗar broｋe ｏut. =He ｍaｎａgeｄtｏfｌee Euroｐeｂefore thｅwar broke out. 注意:could不表示时态 1)提出委婉的请求，(注意在回答中不可用cｏｕｌd)。 ---CoulｄI haｖe tｈｅtｅlｅｖiｓioｎon? --－Yes,ｙou ｃan. / Nｏ，you can'ｔ. 2）在否定,疑问句中表示推测或怀疑。 Hｅcouldn't be a bａd ｍaｎ. 他不大可能是坏人。
比较ｍay和might 1）表示允许或请求;表示没有把握的推测;mａｙ放在句首,表示祝愿。 May Gｏd bｌｅss yｏu！ Ｈｅmiｇht be aｔhome． 注意：might 表示推测时,不表示时态。只是可能性比may 小。 2) 成语: may/might as well,后面接不带to 的不定式，意为"不妨"。 Ifｔhａt is thｅcase, we may ａs ｗell try. 典型例题 Ｐetｅｒ_＿＿come wｉｔh us tonighｔ，but ｈe iｓn't ｖery sｕrｅyet. A. mｕstB．ｍayC. canD. wｉll 答案Ｂ. 表可能性只能用may.此句意可从后半句推出。 比较hａｖe ｔo和mｕst 1)两词都是＇必须＇的意思，ｈave tｏ表示客观的需要，ｍｕｓｔ表示说话人主观上的看法，既主观上的必要。 My ｂroｔher ｗas ｖery ilｌ, ｓo Ｉhａd toｃaｌl tｈe docｔｏr iｎtｈｅmiddlｅof tｈｅniｇhｔ.我弟弟病得很厉害，我只得半夜里把医生请来。(客观上需要做这件事） He said that theyｍust wｏrｋｈａrd．他说他们必须努力工作。(主观上要做这件事) 2)hａve to有人称、数、时态的变化,而must只有一种形式。但must 可用于间接引语中表示过去的必要或义务。 Hｅｈaｄtｏlｏok after ｈｉｓｓisterｙｅsｔerday． 3) 在否定结构中：dｏn＇t hａvｅto表示"不必" mustｎ＇t表示"禁止"， You ｄｏn'ｔhａvｅto tell hiｍabout iｔ．你不一定要把此事告诉他。 Ｙｏu mustn＇ｔｔｅlｌhim aboｕt ｉt.你一定不要把这件事告诉他。 must表示推测 1)muｓｔ用在肯定句中表示较有把握的推测，意为"一定＂。
高中英语情态动词的用法
高中英语情态动词的用法 一概述情态动词的共性 1) 情态动词一般直接加动词原形, 除ought + to do sth .在否定句或疑问句中to 可以省略 2) 情态动词不会因为主语的人称与数的变化而发生变化 3) 当情态动词表达与说话同时或说话之后的情况,直接加动词原形(do sth/be done) .在简略回答时直接用情态动词 (---Can you drive a car? ---- Yes, I can) (1)She said he might come to the farewell party (表达说话之后的情况) (2)She told me that he must be ill, for his face was pale(表达与说话同时情况) 4) 当情态动词表达说话时已发生的情况,加动词完成式( have pp/have been pp) 在简略回答时用情态动词+ have (---- Did he go to the cinema? ---- No, he should have, but he had to finish a report) (1) She may have been there yesterday (2) She should have come to his rescue when he was trapped in the elevator last night (3) He must have been praised at the meeting the other day 二情态动词用法 1 can 1)表示现在或将来的能力, 2)表示可能性“可能”