情态动词（附参考答案）
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 i t.
A. mustn’t
B. needn’t
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.
A. mustn’t
B. shouldn’t
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.” “Y es. 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
1. 选B，should 后接动词完成式表示“本来应该做某事，结果未做”，此处含有责备之意。
2. 选B，对过去情况的肯定推测，宜用“情态动词 + 动词完成式”，再根据句意，可确定答案为B。注：can 表示推测通常不用于肯定陈述句。
3. 选B，表示过去可能发生而实际上未发生的事，用might + 动词完成式。若只是推测过去可能已经发生的事，则可用 may [might] + 动词完成式，如 He may [might] have gone. 他可能已经走了。
4. 选C。由句意可知。
5. 选B，do all one can 意为“尽力”或“竭尽全力”。
6. 选C，mustn’t 在此相当于can’t，且语气更强。
7. 选B，“needn’t + 动词完成式”的意思是：本来不必做某事，但实际上做了。上句意思是“你本来不必告诉他这个消息的，因为他(当时)已经知道了”。注意，句中 knew 为过去式。
8. 选B，must 后接动词完成式表示对过去情况的肯定推测，意为“一定已经做了某事”。
9. 选B，should 后接动词完成式表示“本来应该做某事，结果未做”。
10. 选B，对过去情况的肯定推测，宜用“情态动词 + 动词完成式”，再根据句意，可确定答案为B。注：can 表示推测通常不用于肯定句。
12. 选A。may have done sth 表示对过去可能发生的事进行推测，意为“可能曾经”。
13. 选C。根据上下文的语境推知。can’t 意为“不能”。
14. 选B。根据上下文的语境推知。can’t 表推测，意为“不不能”
15. 选D。couldn’t have done sth 表示对过去情况进行推测，意为“过去不可能发生过某情况”。
17. 选A。根据下文的 will be 可知，“他考试再不及格”是将来的事，据此可排除B和D。再根据语意，排除C。
18. 选D。从时间上看，由于是昨天没来开会，所以推测他生病也应指昨天，故排除A和C。从语境上看，既然上文说I’m not so sure，那么说明说话者对自己的推测没有很大把握，故选D。
19. 选C。根据上文的过去时态可知，此句谈的是过去的事，故排除A和C。根据语境排除D。
20. 选C。couldn’t have done sth 结构在此表示责备，指过去本来可以做某事但实际上未做。第二空填 was wasted，陈述的是过去的一事实。
情态动词专题(含答案)经典 一、初中英语情态动词 1．——Do you have any plans for this summer vacation? ——I'm not sure. I ___ take a trip to Taiwan. A. must B. need C. may D. should 【答案】C 【解析】【分析】句意:一今天暑假你有什么计划吗?一我还不确定。我可能去台湾去旅行。A.必须，一定;B.需要，必要;C.可能;D.应该。根据句中I'm not sure可知，说话人还没有确定的计划，所以这只是一个可能，应选C。 2．—Where is Monica? I can't find her anywhere. —She be in the library. She loves reading books when she is free. A. must B. need C. can't 【答案】 A 【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。 【点评】考查情态动词，注意情态动词表推测的用法。 3．You be tired after walking for such a long time. Sit down and have a rest. A. can B. can't C. mustn't D. must 【答案】 D 【解析】【分析】句意：走了这么长时间你一定很累了。坐下休息一下吧。can能，能够，can't不能，对事物进行否定推测；mustn't一定不是，禁止，must一定，对事物进行肯定推测，根据after walking for such a long time，可以肯定你一定很累，所以是进行肯定推测，情态动词使用must，故选D。 【点评】此题考查情态动词。弄清每个情态动词的使用规则，根据句意确定所使用的情态动词。 4．—Where is Mom now? —I'm not sure. She _________ be in the kitchen. A. shall B. may C. need D. must 【答案】 B 【解析】【分析】句意：—妈妈现在在哪里？—我不确定，她也许在厨房。A. shall 将要； B. may 可以，可能； C. need 需要； D. must必须，一定；根据I'm not sure可知是不确定；故选B。
高中英语语法练习-情态动词 一、基础练习 1.He ___ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside. A. should B. must C. wouldn't D. can't 2. I _____ have been more than six years old when the accident happened. A. shouldn't B. couldn't C. mustn't D. needn't 3. This cake is very sweet. You ____ a lot of sugar in it. A. should put B. could have put C. might put D. must have put 4. He paid for a seat, when he ____ have entered free. A. could B. would C. must D. need 5. I was on the highway when his car went past followed by a police car. They ____ at least 150 kilometers an hour. A. should have been doing B. must have been doing C. could have done D. would have done 6. — Tom is never late for work. Why is he absent today? — Something __________ to him. A. must happen B. should have happened C. could have happened D. must have happened 7. - Do you know where David is? I couldn't find him anywhere. - Well. He _______ have gone far-his coat is still here. A. shouldn't B. mustn't C. can't D. wouldn't 8. -Lucy doesn't mind lending you her dictionary. - She __________. I've already borrowed one. A. can't B. mustn't C. needn't D. shouldn't 9. - Catherine, I have cleaned the room for you. - Thanks. You _____ it. I could manage it myself. A. needn't do B. needn't have done C. mustn't do D. shouldn't have done 10. There________ be any difficulty in passing the road test since you have practised a lot in the driving school. A. mustn't B. shan't C. shouldn't D. needn't 11. - The woman biologist stayed in Africa studying wild animals for 13 years before she returned. -Oh, dear! She ________ a lot of difficulties! A. may go though B. might go through C. ought to have gone through D. must have gone though 12. -I've taken someone else's green sweater by mistake. -It ______ Harry's. He always wears green. A. has to be B. will be C. mustn't be D. could be 13. Helen _______ go on the trip with us, but she isn't quite sure yet. A. shall B. must C. may D. can 14. If I ________ plan to do anything I wanted to, I'd like to go to Tibet and travel through as much of it as possible.
情态动词should的用法 情态动词should和can ，may ，must一样，没有人称和数的变化，有词意，但都不能单独作谓语，必须和后面的动词原形一起构成谓语。基本意思是“应当，应该”，常用来表示建议或命令等。如： You should work harder. 你应该更努力地工作。 否定式和疑问式的构成与can ，may ，must一样。如： You shouldn’t play soccer in the street.你们不应该在街上踢足球。 Who should pay the taxi driver? 谁应该付出租车钱？ 注意： 常用句型You should /shouldn’t do sth 表示“建议某人（不）做某事”。其他表示“建议”的句型还有：Why not do sth? /Why don’t you do sth? /How about doing sth? /What about doing sth? /It’s a good idea to do sth /You’d better do sth等。 should作为情态动词用，常常表示意外、惊奇、不能理解等，有“竟会”的意思，例如： How should I know? 我怎么知道？ Why should you be so late today? 你今天为什么来得这么晚？ should有时表示应当做或发生的事，例如： We should help each other.我们应当互相帮助。 我们在使用时要注意以下几点： 1. 用于表示“应该”或“不应该”的概念。此时常指长辈教导或责备晚辈。例如： You should be here with clean hands. 你应该把手洗干净了再来。 2. 用于提出意见劝导别人。例如： You should go to the doctor if you feel ill. 如果你感觉不舒服，你最好去看医生。 3. 用于表示可能性。should的这一用法是考试中常常出现的考点之一。例如： We should arrive by supper time. 我们在晚饭前就能到了。 She should be here any moment. 她随时都可能来。 1. We _________ keep the new traffic law(交通法). A. may B. should C. can D. need 2.I’d like to buy a new shirt , but I don’t know __________ . A. where could buy it B. I should take which C. which I should take D. where can I get it 写出同义表达 Why not have a rest? (1) Why _______ ________ have a rest? (2) You’d _________ _________ a rest. (3) You _______ ________ a rest. (4) ________ _________ having a rest?
情态动词练习题及配套参考答案 一、单项选择情态动词 1．—Can I pay the bill by check? —Sorry，sir．But it is the management rules of our hotel that payment _____ be made in cash． A．shall B．need C．will D．can 【答案】A 【解析】 【详解】 考察情态动词用法。句意：——我能用支票付账吗?——对不起,先生。但这是我们酒店的管理规定,支付要用现金。shall可以表示命令，警告，强制，或者指规则和法律要求做的事情。本题正是考察了shall表示按照规则和法律要求做的事情。故A正确。 2．Using AI， many companies are now conducting experiments that__________ possible just a few years ago． A．would have been B．might have been C．shouldn't have been D．couldn't have been 【答案】D 【解析】 【详解】 考查情态动词表推测。句意：很多公司现在使用人工智能进行试验，这在几年前是不可能的。根据“a few years ago”可知，此处表示“过去不可能”，应该用couldn’t have done，故D 项正确。 3．Most of the top leaders expressed a common desire at the UN conference, ______ that different cultures ______ coexist with tolerance. A．the one ; must B．the one ; should C．one ; must D．one ; should 【答案】D 【解析】 【详解】 考查替代和情态动词。句意：大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。大多数高层领导人在联合国大会上表达了一个共同的愿望，即不同的文化应该与宽容共存。替代表泛指的单数名词，通常用one替代。此处用one替代前面的a desire，是同位语；结合句意第二空用情态动词should“应该”。故选D。【点睛】 that ,it ,one 代指前面的名词时的用法 1.one 指代前面出现的可数名词，是泛指。可以和冠词连用，也可以有自己的定语。一般不能用做特指，但和定冠词连用时可以是特指。如： Please show me the cup, the red one on
情态动词归纳及专项练习题 一、单项选择情态动词 1．If we had paid enough attention to the issue of the heavily-overloaded vehicles, the tragedy of the collapse of an overpass in Wuxi _____ avoided. A．should B．could be C．should have been D．could have been 【答案】D 【解析】 【详解】 考查情态动词用法。句意：如果我们对超载车辆问题给予足够的重视，就可以避免无锡立交桥垮塌的悲剧。本句为“情态动词+have done”结构，结合句意表示“本来可以；本来能够”应用could have done结构，且主语与谓语动词avoid构成被动关系，故应用be done形式。故选D。 【点睛】 情态动词+have done的结构和用法有以下几种： 一、must have done sth.“一定做了某事”。表示对过去事情的较有把握的推测，这时只能用在肯定句中，“肯定/必须已经干过……”，在否定句和疑问句中用can’t或co uldn’t或can/ could，例如： 1.From what you said, she must have told you all about it. 从你的话看，她一定告诉了你所有的事情。 二、can/could have done sth.本来能够做某事，而实际上未做； 1.But we could have done it all so much better. 但是，我们本可以把这一切做得更好。 三、can't/couldn't have done sth.不可能做过某事； 1. We could't have done it without you. 没有你我们办不成这事。 四、ought to/should have done sth.过去本应该做某事而实际上并没有做。 You should have done it when you first saw them blooming this spring. 你应该在今年春天第一次看到它们盛开的时候就挖一些的。 2.Even if it’s something you should have done earlier in the wee k or missed a detail on. 甚至你在一个星期前的就提早完成了一件事或者忽略了一个小细节。 2．—I don’t really like Janes. Why did you invite him? —Don’t worry. He come. He said he was’t certain what his plans were. A．must not B．need not C．would not D．might not 【答案】D 【解析】 考察情态动词，题干中的he wasn’t certain说明他可能不来，可能来，因此使用不完全否定，might not。 3．--- Oh, my God! I just missed the last bus back home.
高中英语情态动词经典习题(含答案) 一、单项选择情态动词 1．-- Catherine, I have cleaned the room for you. ---Thanks. You _______ it. I could manage it myself. A．needn’t do B．shouldn’t have done C．mustn’t do D．needn’t have done 【答案】D 【解析】 【详解】 考查情态动词辨析。句意: ---凯瑟琳，我已经为你打扫了房间。 - - -谢谢。你本不必这么做的。我自己能行。A. needn’t do不必做某事；B. shouldn’t have done本不应该做某事； C. mustn’t do禁止做某事；D. needn’t have done本不必做某事。由“Thanks. I could manage it myself”可知，needn’t have done“ 本不必做某事，而实际上做了某事”符合句意。故选D 项。 2．Paul did a great job in the speech contest. He many times last week. A．need have practised B．might practise C．must have practised D．could practise 【答案】C 【解析】 【详解】 考查情态动词。句意：保罗在演讲比赛中表现得很好。他上星期一定练习了很多次。must have done是对过去发生的动作最有把握的猜测，意思是“一定”。故C选项正确。 3．It is really cold and the ground is wet; it ________ have rained last night. A．might B．must C．can D．should 【答案】B 【解析】 【详解】 考查情态动词辨析。句意：天气很冷而且地面是湿的，昨晚一定下了雨。根据上文the ground is wet可知，“昨晚下了雨”是肯定的，故用must have done“必定做了……”表示对过去十分有把握的推测，故选B。 【点睛】 must have done用法辨析 must have done：表示对过去的肯定的逻辑推测，推定某件事情、动作或状态可能在过去发生过（存在过）。 He must have been a doctor, for he knows medicine so well. 他过去肯定是一位医生，他对医学如此了解。 Somebody must have stolen the ring. 肯定有人偷了这枚戒指. [该句所推断的偷窃动作发生在
一、情态动词should的用法 情态动词should有自己的意义，但不能单独作谓语，只能和其他动词一起构成谓语，表示说话人的态度或看法，后接动词原形。常见用法有以下几点： 1.表示劝告、建议等，意为“应该”，常指根据常理认为对的事或应该去做的事。 当劝某人做或不做某事时，常用“should do sth.”或“shouldn't do sth.”。should 比must 和ought to 语气更加委婉。 例句:You should brush your teeth before you go to bed.你在睡觉前应该刷牙。 You shouldn't watch TV every day.你不应该每天看电视。 2.通常用来表示现在或将来的责任或义务。 例句:Children should obey their parents.孩子们应该听从他们的父母。 We should respect the old.我们应该尊敬老人。 3.表示推断，意为“应该；可能”。 例句:They should be there by now，I think.我觉得现在他们应该都已经到了。 4.用于第一人称疑问句，询问对方的意愿，表示说话人的一种谦
逊、客气、委婉的语气。 例句:Should I open the window? 我可以打开窗户吗？ What should we do now? 我们现在该干什么呢？ 5.表示某种感情色彩，意为“竟会”，常用于以how, why开头引导的特殊疑问句中。 例句:Why should you be so early today? 你今天为什么会如此早
【英语】情态动词专项练习综合经典1 一、初中英语情态动词 1．——Do you have any plans for this summer vacation? ——I'm not sure. I ___ take a trip to Taiwan. A. must B. need C. may D. should 【答案】C 【解析】【分析】句意:一今天暑假你有什么计划吗?一我还不确定。我可能去台湾去旅行。A.必须，一定;B.需要，必要;C.可能;D.应该。根据句中I'm not sure可知，说话人还没有确定的计划，所以这只是一个可能，应选C。 2．—Where is Monica? I can't find her anywhere. —She be in the library. She loves reading books when she is free. A. must B. need C. can't 【答案】 A 【解析】【分析】句意：——莫妮卡在哪？我到处都找不到她。——她肯定在图书馆，她喜欢空闲时看书。A肯定，肯定句中表示推测，B需要，C不可能，否定句中表示推测，根据 She loves reading books when she is free ，可知是肯定句表示推测，故选A。 【点评】考查情态动词，注意情态动词表推测的用法。 3．A hard-working man ______ become a great scientist, but a great scientist _______ be a hard-working man. A. can't; can B. may not; must C. can't; must D. may not; can 【答案】 B 【解析】【分析】句意：一个勤奋的人可能不会成为一位伟大的科学家，但是一位伟大的科学家一定是一个勤奋的人。can't不可能，不会；can可能，能，会；may not 可能不；must 必须，一定；结合句意，可知，第一个空为“可能不”，第二个空为“一定”，故答案为B。 【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．—Shall we meet at the station at 9 a.m.? —In fact we ______. The train ______until 11a.m. A. needn't; will leave B. needn't; won't leave C. mustn't; leaves D. mustn't; doesn't leave 【答案】 B 【解析】【分析】句意：—我们上午9点在车站见面好吗？—事实上我们不需要。火车直到11点才离开。needn't情态动词，不需要，没必要；mustn't情态动词，不允许，语气强
（英语）高一英语情态动词解题技巧及练习题(含答案) 一、单项选择情态动词 1．—It’s so hot and uncomfortable here! Why are your windows still closed? —Oh, I’m not to blame. They ________ open. A．shan’t B．mustn’t C．won’t D．wouldn’t 【答案】C 【解析】 【详解】 考查情态动词辨析。句意：---这里又热又不舒服！你的窗户怎么还关着？ ---哦，不该责备我啊。窗户打不开了。shan’t= shall not意为“不可, 不应”；mustn’t=must not意为“不要”；wouldn't=would not 意为“不会，不愿意”。won’t=will not意为“不会, 不能”， will在这里表示能力、功能。例如：This auditorium will seat one thousand people. 这个礼堂能容纳一千人。这句话意思是“这扇窗不能打开”，故选C项。 2．—What’s wrong with you? —Oh, I am sick. I ________ so much ice cream just now. A．shouldn’t eat B．mustn’t eat C．couldn’t have eaten D．shouldn’t have eaten 【答案】D 【解析】 【详解】 考查情态动词和虚拟语气。句意：——你怎么了？——我生病了，我刚才不应该吃那么多冰激凌。A. shouldn’t eat不应该吃；B. mustn’t eat禁止吃；C. couldn’t have eaten不可能吃；D. shouldn’t hav e eaten本来不应该吃。根据just now可知，是发生在过去，故选D。 3．No student ________ go out of school to have lunch without permission of the headteacher. A．might B．must C．shall D．could 【答案】C 【解析】 【详解】 考查情态动词。句意：未经校长允许，任何学生不得离开学校去吃午饭。might可能；must一定，必须；shall会，将；could能够。本句是一条禁令。shall用于肯定句并且主语是第一、三人称时，表示允诺，警告，劝告等语气。故选C。 4．Mark ______ have hurried. After driving at top speed, he arrived half an hour early. A．needn’t B．wouldn’t C．mustn’t D．couldn’t 【答案】A 【解析】
should的用法： should用来提出建议和忠告，后边加动词原形，否定句直接在should后边加not. 例如：I think you should eat less junk food. 我认为你应该少吃垃圾食品。 She drives a lot and she seldom walks. So I think she should walk a lot. 她经常开车，很少走路。所以我认为她应该多走路。 Students shouldn’t sp end too much time playing computer games. 学生们不应当花太多的时间玩计算机游戏。 学习向别人提建议的几种句式： （1）I think you should… （2）Well, you could… （3）Maybe you should … （4）Why don’t you…? （5）What about doing sth.? （6）You’d better do sth. 练一练 用should或shouldn’t填空 1. I can’t sleep the night before exams. You ______ take a warm shower before you go to bed. 2. Good friends ______ argue each other. 3. There is little milk in the glass. We _______ buy some. 4. They didn’t invite you? Ma ybe you ______ be friendlier. 5. I am a little bit overweight. So I think I _______ do exercises every day. 答案：1. should 2. shouldn’t 3. should 4. should 5. should
情态动词练习题带答案 一、单项选择情态动词 1．—I feel a little nervous. —Take it easy. You __________ have difficulty passing the exam when you have prepared for it well. A．mustn’t B．needn’t C．may not D．shouldn’t 【答案】D 【解析】 【详解】 考查情态动词。句意：——我觉得有点紧张。——不要着急。当你准备充分时，通过考试应该不会有困难。A. mustn’t禁止，不允许；B. needn’t不必；C. may not可能不会；D. shouldn’t不应该。结合句意可知答案为D。 2．—I have something important to tell John. But I can’t find him. —His cell phone is here, so he ________ have gone too far. A．mustn’t B．needn’t C．wouldn’t D．can’t 【答案】D 【解析】 【详解】 考查情态动词。句意：——我有重要的事情要告诉John，但是我找不到他。——他的手机在这儿，所以他不可能走得太远。根据句意可知，此处是对过去的一种猜测，此处是表达不可能……，用can’t have done。故选D。 3．It has been announced that all the candidates ___________ remain in their seats until all the papers have been collected. A．shall B．could C．would D．ought 【答案】A 【解析】 【详解】 考查情态动词用法。句意：据宣布，所有的候选人都要坐在位置上，直到所有的试卷都被收齐。根据句意可知本句是考试规则，情态动词shall可以表示“按照规则/规定/法律要做的事情”，符合本句语境。故A项正确。 4．—It’s really great to have a computer to store my photos. —Don’t count on it too much. It ________ break down and you’d better mak e a copy of them. A．must B．can C．should D．will
最新情态动词专项练习及答案详解 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．Keep up your spirits even if you _____ fail hundreds of times. A．must B．need C．may D．should 【答案】C 【解析】 【详解】 考查情态动词。A. must必须；B. need需要；C. may可能，或许；D. should应该。句意：即使失败了几百次，也要振作起来。此处表示一种不确定的推测，故选C。 3．Using AI， many companies are now conducting experiments that__________ possible just a few years ago． A．would have been B．might have been C．shouldn't have been D．couldn't have been 【答案】D 【解析】 【详解】 考查情态动词表推测。句意：很多公司现在使用人工智能进行试验，这在几年前是不可能的。根据“a few years ago”可知，此处表示“过去不可能”，应该用couldn’t have done，故D 项正确。 4．Mr. Baker, some students want to see you. ______ they wait here or outside? A．May B．Should C．Shall D．Will 【答案】C 【解析】 【详解】
高中英语情态动词练习 1、Many a time，the Chinese government urged that American government stop selling advanced weapons to Taiwan，but it__________ listen，__________Sino-US relations. A. won’t；damaging B. wouldn’t；damaging C. shouldn’t; to damage D. wouldn’t：to damage 2、it have been the failure to pick up directions from the ground control that caused the air crash? A. Must B. Could C. Would D. Should 3、— Look! It’s raining again. — Why _____ it rain on Sundays? We are always staying inside! What a nuisance! A．need B．must C．does D．should 4、 ---Why ______ you stay in the countryside, where it is not convenient to go shopping? ---- But I’ve found it rather valuable for my health. A .can B. must C. may D. shall 5、一What does the sign over there read? 一“No person ________ smoke or carry a lighted cigarette，cigar or pipe in this area．” A.will B. may C. shall D.must 6、—Have you checked the engine? —Yes, I did twice; there be anything wrong with the car. A. won’t B. mustn’t C. needn’t D. shouldn’t 7、The doctor recomm ended that you swim after eating a large meal. A.wouldn’t B.couldn’t C.needn’t D.shouldn’t 8、His failure in the exam suggested that he _______ the teacher's instructions. A. can't have followed B. needn't have followed C. mustn't have followed D. shouldn't have followed 9、The missing children haven’t been found yet. Something terrible ________ to them. A. may happen B. should have happened C. must happen D. might have happened 10、I don't know how he _______that I'm lazy , _______he's been in bed all day. A. dare to say , that B. dares say , while C. dare say , as D. dares to say, when 11、— You didn’t wait for Elizabeth last night, did you? — Yes, but we ______. She didn’t come at all. A. don’t have to B.needn’t have C. need to D. should have 12、I’m glad that you have managed to come, but you _____ have brought wine．We’ve got plenty. A wouldn’t B．needn’t C．mustn’t D．couldn’t 13、The school rules state that no child ____________ be allowed out of the school during the day, unless accompanied by an adult. A. could B. shall C. might D. should 14、The famous writer often says that he ________ so much without the support and encouragement from his wife. A. shouldn’t achieve B. shouldn’t have achieved C. couldn’t achieve D. couldn’t have achieved 15、—Did you lock the door？—No, I ____, but I forgot. A. should B. must have C. must D. should have 16、 ----Who’s the man giving the speech?
must. (表示必要、命令或强制)必须,得 You mustn't talk like that. 你可不能这样说话。 You must do as you are told. 你必须遵嘱行事。 We must be home by six. 我们必须在六点以前回家。 2. (表示肯定的推测)一定是,谅必,八成 This must be your room. 这一定是你的房间了。 He must be eighty now. 他现在很可能有八十岁了。 3. (表示不可避免性)必然要,必定会 All men must die. 人总有一死。 4. (表示主张)一定要,坚持要 If you must go, at least wait till the rain stops. 如果你坚持要走,至少也要等雨停了再走。 5. (表示与说话人愿望相反)偏要 The machine must break down at this busy hour. 正忙的时候机器偏偏坏了。n.[S] 1. 必须做的事;不可少的事物 A walking stick is a must for me now. 如今我行走离不开手杖了。 2. 一定要看(或听、读)的东西 a. 1. 绝对必要的,必须的[B] Shall 1. (shall的过去式,表示过去将来)将 We hoped that we should be able to do that.我们希望我们能这样做。 2. (表示语气较强的假设)万一,竟然 If the car should break down on the way, you would have to walk back. 万一汽车中途抛锚,你就得走回来。 3. (表示可能性、推测、推论或期待)可能,该 She should be here any minute.她该马上就到。 Dinner should be ready by now.此刻晚饭应该做好了。 4. (表示义务、责任)应该,应当 You should do as she says.你应当照她说的去做。 He should work harder.应该更加努力。 You should help your mother with the housework.你应该帮你母亲做家务。 5. (表示委婉、谦逊)可,倒 6. (表示感情、意志等)竟然会;应该 I'm sorry it should be this way.很遗憾,事情竟会是这个样子。 It's strange that he should be absent.真奇怪,他竟会缺席。 You shouldn't have told him about it.你不该把这件事告诉他的。 7. (表示建议、命令、决定等)应该,必须 Crime should be punished.犯罪应受惩罚。 8. (表示目的)会,可以 He stood away so that we should enter the room first.他让开一步,让我们先进屋。 9. (表示结果、意愿等)就,该