情态动词详解+例句.docx

1、情态动词详解+例句情态动词详解+例句一、单项选择情态动词1We _ take clean drinking water for granted. One day we may run out of it.Aneednt BcantCwont Dshouldnt【答案】D【解析】【详解】考查情态动词。句意：我们不应该把拥有洁净的饮用水看作是理所当然的。也许有一天，我们会用完它。shouldnt“不应该”，符合句意。neednt不必；cant不可能；wont将不。故选D。2I dont really like Janes. Why did you invite him?Dont worry. He

2、 come. He said he wast certain what his plans were.Amust not Bneed not Cwould not Dmight not【答案】D【解析】考察情态动词，题干中的he wasnt certain说明他可能不来，可能来，因此使用不完全否定，might not。3They were abroad during the months when we were carrying out the investigation, or they _to our help.Awould have come Bcould comeChave come

3、 Dhad come【答案】A【解析】试题分析：本句考查的是一个含蓄的虚拟条件句，句中的or相当于if they had not gone abroad.因为前面句中使用的是were，说明这个虚拟语气是与过去事实相反，所以主句中使用的是“情态动词+have done”的形式。句意：当我们在做调查的那几个月里，他们一直在国外，否则的话他们早就来帮助我们了。故A正确。4Keep up your spirits even if you _ fail hundreds of times.Amust BneedCmay Dshould【答案】C【解析】【详解】考查情态动词。A. must必须；B. ne

4、ed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。5Using AI， many companies are now conducting experiments that_ possible just a few years agoAwould have been Bmight have beenCshouldnt have been Dcouldnt 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

5、”可知，此处表示“过去不可能”，应该用couldnt have done，故D项正确。6- Did Jim come?- I dont know. He _ while I was out.Amight have come Bmight comeCmust have come Dshould have come【答案】A【解析】【详解】考查情态动词推测用法。句意：Jim来了吗？-我不知道，在我不在的时候，可能来过。根据前文I dont know.可知，说话者不知道Jim来没来，因此后文推测来过，但是语气很不确定，故可知选A。对过去情况的推测 为情态动词+have done，must have

6、done 一定做了某事，should have done 应该来过，不符合，故选A。【点睛】情态动词+have+过去分词的用法，表示推测或判断过去的情况。can/could+have+过去分词用法：多用于否定句和疑问句中。表示对过去某事发生的可能性的否定或质疑，意为：不可能（已经）.了-（否定句）/可能（已经）.了嘛？-（疑问句）用于肯定句中。表示对过去没有做某事的遗憾，含有轻微的责备，意为：本来可以.的（但实际上没有.）。You could have done better, but you were too careless.（肯定句。他能做得更好的）should/ought to+hav

7、e+过去分词用法：用于肯定句中。表示对过去没有做某事的遗憾，含有责备的意思，意为：本来应该.的（但实际上没有.）。用于否定句中-表示对过去已经做了某事的责备，意为：本来不应该.的（但实际上已经.了）。He should have been asleep.（肯定句，他本应去睡觉的）He shouldnt have been asleep.（否定句，他本来不应该去睡觉的）。may/might+have+过去分词用法：用于肯定句和否定句中，表示对过去发生某事的可能性的推测，意为：或许（已经）./或许还没有.。It is too late. He may have gone to bed.must+h

8、ave+过去分词用法：表示对过去发生的事情十分肯定的推测。must表示推测时，不能用在否定句和疑问句中。I must have forgotten to tell you.（must 的引入，表达了说话者对过去忘记告诉你的这件事肯定推测）neednt+have+过去分词用法：表示对过去已经做了某事的后悔，意为：本来可以不必.的（可实际上却已经.）You neednt have taken a taxi here, for it was very near to my home.7It has been announced that all the candidates _ remain in

9、their seats until all the papers have been collected.Ashall BcouldCwould Dought【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。8-He was satisfied with the result, wasnt he?-No. It was so difficult that he _have passed it.Ashouldnt Bmus

10、tntCcouldn t Dwouldnt【答案】C【解析】【详解】考查情态动词。A. shouldnt 不应该；B. mustnt禁止，不允许；C. couldn t 不可能；D. wouldnt不会。句意：-他对结果很满意，是吗? -不。考试太难了，他不可能通过。固定结构：couldn t have done“不可能做某事”，此处是对过去事情有把握的否定推测。故选C。【点睛】情态动词+ have done结构：1.“must + have + 过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句.如：It must have rained last night,fo

11、r the ground is wet.2.“can / could + have + 过去分词”表示对过去某种情况的怀疑或不确定.can和could一般用于否定句和疑问句,could的语气较can弱.如：He cant have finished the work so soon.3.“may / might + have + 过去分词”表示对已发生的动作或存在的状态进行不肯定的推测,might的语气比may弱一点.这种结构主要用于肯定句和否定句,疑问句改用can或could.如：They may not have known it beforehand.4.“need + have + 过

12、去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如：I neednt have bought so much wineonly five people came.5.“should / ought to + have + 过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些.如：You ought to / should have studied harder.你本应该更努力学习的.（但没有） He oughtnt to / shouldnt have done that.他本来就不该做那

13、件事.（可是做了） 6.“would have 过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意.如：I guess the poet would have been about twenty when she wrote her first poem.Another worker wouldnt have acted like that.9would可以表达过去常常做的事，过去习惯发生的动作：Pirates would bury gold in a cave. 海盗们常常把黄金藏在山洞中。W

14、e would take a walk along the river. 我们过去常常沿河散步。3. would后接like、love、mind等动词，表示要求、邀请、希望或询问，此时不是说过去，而是对现在的询问：Would you like to come to my party? 你愿意来我的派对吗？Would you mind coming with us? 你介意和我们一起吗？比如本题，would 表示婉转的请求，征求对方的意见，故选A。10What happened to the young trees we planted last week?The trees _ well, b

15、ut I didnt water them.Amight grow Bneednt have grownCwould have grown Dwould grow【答案】C【解析】考查虚拟语气。我们上周种的小树怎么了?这些小树本来会长得很好,但是我们没有给 它们浇水。根据语境可知,此处是对过去的事实进行假设,故本题选C。11-Can I pay the bill by credit card?-Sorry, sir. But it is the management rules of our hotel that payment _ be made in cash.Ashall BneedCw

16、ill Dmust【答案】A【解析】【详解】考查情态动词词义辨析。A. shall用于法律法规或条文中，表示义务、规定等；B. need需要；C. will会；D. must必须。句意：我能用信用卡支付么？对不起，先生，现金支付是我们酒店的管理规定。故A项正确。12 Excuse me, could you please tell me how to get to the nearest Wenfeng Supermarket? OK, Its two blocks straight ahead. You _ miss it.Acant BmustntCneednt Dwouldnt【答案】A

17、【解析】【详解】考查情态动词。句意：劳驾，你能告诉我最近的Wenfeng Supermarket怎么走吗?好的，一直往前走两个街区就到了。你不会错过的。A. cant不可能；B. mustnt禁止，不允许；C. neednt不必；D. wouldnt不会。故选A。13I still find it hard to imagine that such a clever child _ make such a foolish mistake.Ashall BmustCcan Dshould【答案】D【解析】【详解】考查情态动词。 句意：我仍然难以想象这样聪明的孩子竟然犯这样愚蠢的错误。should

18、 作为情态动词，可以用来表示意外、惊喜或者在说话人看来是不可思议的，常常译为竟会、居然，这么聪明的孩子竟然犯这样愚蠢的错误。表示意外，shall表示允诺，命令等，must表示必须，can表示能力及可能性。所以答案选D。14It _ be the postman at the door. Its only six oclock.Amustnt BcantCwont Dneednt【答案】B【解析】D考查虚拟语气。句意：不可能是邮递员在门口，才六点钟呢。mustnt 禁止，不允许；cant 不可能；wont 不愿意，就是不，偏不；neednt 不需要。15What a pity! Consider

19、ing his ability and experience, he _ it better.Aneed have done Bmust have doneCcan have done Dmight have done【答案】D【解析】【详解】考查虚拟语气中的情态动词。句意：真遗憾啊！考虑到他的能力和经验，他也许可以做得更好。can have done较少使用此结构，表示对过去行为的怀疑；用于疑问句时意为“难道真的做了吗”，表示怀疑；need have done需要做某事，实际上却未做（表示虚拟语气）；must have done一定做了某事（表示对过去发生的事情的肯定推测）；might ha

20、ve done表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中。故D正确。【点睛】本题是高考必考考点，一定要牢记句型意思。must have done过去肯定做了某事。should have done本应该做而实际未做。cant have done过去不可能做了某事；shouldnt have done 本不应该做而实际做了。need have done本有必要做某事而没做；neednt have done本没有必要做某事；注意没有mustnt have done的形式。16You cant imagine that a well behaved gentleman _

21、 be so rude to a lady.Amight Bneed Cshould Dwould【答案】C【解析】【详解】考查情态动词辨析。句意: 你无法想象一个行为良好的绅士会对一位女士如此粗鲁A. might可能；B. need需要 ；C. should竟然； D. would会。由You cant imagine that a well behaved gentleman. 可知，should“竟然”符合句意。故选项C项。17Students _ remain in their seats until all the papers have been collected accordi

22、ng to the regulation.Awould Bshall Cwill Dcould【答案】B【解析】【详解】考查情态动词。句意：学生们必须呆在自己的座位上，直到所有的试卷都被收回。根据句意，“学生们呆在自己的座位上”是一项规定。shall 可表示某种规定或义务，用于第二、三人称的句子中。而其他情态动词无此用法。故正确答案为B。18The door _ open, no matter how hard she pushed.Ashouldnt BcouldntCwouldnt Dmightnt【答案】C【解析】【详解】考查情态动词。句意：无论她怎么使劲推，门就是打不开。A. shou

23、ldnt不应该；B. couldnt不能够；C. wouldnt不愿意；D. mightnt可能不。will及其过去式would均可表示一种倾向性、习惯。故选C。19- Difficulties always go with me!- Cheer up! If God closes door in front of you, there be a window opened for you.Amust BwouldCcould Dcan【答案】A【解析】【详解】考查情态动词辨析。句意：困难总是伴随着我！高兴点! 如果上帝在你面前关上了门，一定有一扇窗户为你打开。A. must必须；B. wou

24、ld将要；C. could能，会；D. can能，会。must表示对现在的状态推测时，意为“一定”，表示可能性很大的推测。符合语境。故选A。【点睛】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。 3) must 表示对已发生的事情的推测时，must 要接完成式。4) must表示对过去某时正发生的事情的推测，must 后面要接完成进行式。5) 否定推测用cant。本句中的。must表示对现在的状态推测时，意为一定，表示可能性很大的推测。符合第2点用法。20If we h

25、ad paid enough attention to the issue of the heavily-overloaded vehicles, the tragedy of the collapse of an overpass in Wuxi _ avoided.Ashould Bcould be Cshould have been Dcould 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 d

26、one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cant或couldnt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.

27、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、cant/couldnt have done sth.不可能做过某事；1. We couldt 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

28、 if its something you should have done earlier in the week 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。21Its so hot and uncomfortable here! Why are your windows still closed? Oh, Im not to blame. They _ open.Ashant Bmustnt Cwont Dwouldnt【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

29、。窗户打不开了。shant= shall not意为“不可, 不应”；mustnt=must not意为“不要”；wouldnt=would not 意为“不会，不愿意”。wont=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。22He _ writing the paper now. He hadnt written a single word when I left him ten minutes ago

30、.Ashouldnt be Bcant have finishedCcant be Dmustnt have finished【答案】B【解析】【详解】考查推测句。句意：他现在不可能写完了卷子。我十分钟之前留下他时，他还没有写一个字。根据句意可知，此处考查对过去情况的否定推测，其表达为cant have done不可能做某事，故选B项。【点睛】本题考查推测句对过去情况的肯定推测是must have done对过去情况的否定推测是cant/couldnt have done例如:The ground is wet, so it must have rained last night.He cant have finished his work, because he played basketball all day yesterday.23Peter searched all the places where he_