专题六情态动词、虚拟语气
情态动词
一、can和could的用法
1．表示能力
Her mother can speak French.
2．表示客观可能性
Anybody can make mistakes.
3．表示许可(多用于口语)
Can I go now?
4．表示惊异、怀疑、不相信的态度(主要用于否定句、疑问句或感叹句中) How can you be so careless!
5．can的特殊用法
can but只有；can’t but不得不；can’t...too再怎样也不为过，越……越好。
I can but wait.
I can’t but wait.
You can’t be too patient to the customers.
二、may和might的用法
1．表示允许、请求
—May I watch TV now?
—Yes，you may.(Yes，please.)
—No，you mustn’t.(No，you’d better not.)
2．表示可能性(主要用于陈述句、肯定或否定句，疑问句用can代替)
The story may not be true.
3．表示祝愿(不用might)
May you succeed!
4．may/might as well最好还是……
You might as well do it now.
5．may/might well很可能
He may well be late for class.
三、must，have to和ought to的用法
(1)must表示“必须，应该，一定要”。强调主观看法，只有现在时形式，否定式是must not(mustn’t)。must开头的问句，其否定回答要用needn’t或don’t have to代替。
(2)must表示必然的结果。
All men must die.
(3)must还可表示主语固执、偏要做他人不希望做的事。
It can’t help；he must do that.
2．have to着重客观需要，能用于更多时态(过去时或将来时)。
He will have to be there before ten.
3．ought to表示义务和责任，“应该”，比should语气要强。
You ought to take care of yourself.
四、need和dare的用法
1．need表示“需要，必要”，只能用于否定句和疑问句。在肯定句中，常用must和have to代替。
2．dare表示“敢”，通常用于否定句、疑问句和条件状语从句中。
Dare you go home alone at eleven in the evening?
3．need和dare的特殊用法
(1)need表“需要”时，可用want，require代替。
The desk needs to be repaired./The desk needs repairing.
(2)dare作实义动词时，在肯定句中要接to，在疑问句和否定句中to可省去。
He dares to catch a snake.
五、will和would的用法
1．will
(1)表示请求、建议，常用于第二人称。
Will you please go with me?
(2)表示意愿、决定、允许。
I will never do that again.
(3)表示习惯性动作或某种倾向，“总是，惯于”，通常用于第三人称。
Fish will die out of water.
2．would
(1)表示请求、建议，比will委婉，指现在时间，多用于第二人称。
Would you like a cup of tea?
(2)表示过去习惯性动作或某种倾向。
We would play badminton on Sundays.
六、shall和should的用法
(1)用于第一、三人称，在问句中表示征求对方意见或请求。
(2)用于第二、三人称表示命令或威胁。
You shall do as your father says.
2．should
(1)表示责任、义务，意为“应该”。
(2)表示惊讶语气，意为“竟然”。
You should wear slippers in class.
(3)用于条件句，表示“假如，万一”，省去if，should可提至句首。
Should you be late，apologize to the teacher.
七、“情态动词＋have done”的用法
1．must have done sth.；can(could) have done sth.
(1)must have done sth.表示对过去已经发生的事情的有把握的推测，意思是“想必、准是、一定做了某事”，只用在肯定句中。
It must have rained last night，for the ground is wet.
(2)can(could) have done sth.表示对过去发生的动作的怀疑和不肯定，通常用在否定句和疑问句中。
He can’t have forgotten it.
2．needn’t have done sth.；didn’t need to do sth.
(1)needn’t have done sth.表示已完成不需要完成的动作。
You needn’t have waken me up.I don’t have to go to work today.
(2)didn’t need to do sth.表示没有必要做而实际上也没有做某事。
I didn’t need to clean the windows.My brother did it.
3．may/might have done sth.
may/might have done sth.表示对过去已发生的动作的推测，意为“也许/或许已经……”。
I’m not sure.He might have said so at the conference.
4．should have done sth.
should have done sth.表示本来应该做某事而实际上未做。
You should have told him about it.
5．had better have done sth.；would rather have done sth.；would like/love to have done sth.
(1)had better have done sth.表示事后的建议，含轻微责备的口吻，意为“当时做了某事就好了”，其否定形式had better not have done sth.表达相反的含义。
(2)would rather have done sth.表示“宁愿当时做某事”，其否定形式would rather not have done sth.表达相反的含义，两者都含有“后悔”之意。
I would rather have taken his advice.
(3)would like/love to have done sth.表示过去愿意做某事，但未做成。
I would love to have gone to the party last night，but I had to work extra hours to finish my report.
虚拟语气
一、以if条件从句为虚拟语气标志
1．含蓄条件句
有时虚拟语气并不总是用if引导的条件句来表示，而是通过一些词或短语表示出来。这些词或短语引出的条件与if引导的条件句意义相似，如but for，with，without，otherwise，or，but等。其中but for相当于if it were not for/if it had not been for，表示“要不是……”。
He wouldn’t have survived but for the neighbour’s timely help.
2．在虚拟条件句中有时if是可以省略的，当if被省略后，要将从句中的were，had，should置于句首，构成倒装结构。
Were he here，he could settle the issue.
二、虚拟语气在名词性从句中的用法
1．宾语从句
(1)suggest等表示建议、愿望、命令等的动词后跟的宾语从句要使用虚拟语气，从句谓语的结构为“should＋动词原形”，其中should可以省略。类似用法的动词还有order，request，advise，require，insist，demand，command等。
The doctor suggested that he (should) take more rest.
(2)would rather后的宾语从句
would rather后的从句常用一般过去时表示与现在或将来相反的情况；用过去完成时表示与过去相反的情况。
I’d rather you left tomorrow.
2．主语从句
在“It is/was/has/had been suggested＋that引导的主语从句”中，主语从句要用虚拟语
气，即“should＋动词原形”结构，其中should可以省略。和suggest用法一样的动词还有demand，order，advise，require，propose等。
另外，在“It is/was important(necessary，desirable，advisable等)＋that引导的主语从句”中，从句也常用虚拟语气，谓语用“should＋动词原形”结构，其中should可以省略。
It is suggested that the building (should) be pulled down.
It is necessary that a doctor (should) be sent for at once.
3．表语从句
当suggestion，order，proposal，demand等名词作主语时，其后的表语从句中要用虚拟语气“should＋动词原形”结构，其中should可以省略。
My advice is that you (should) give up smoking.
4．同位语从句
在suggestion，advice，order，proposal，demand等名词后跟的同位语从句中要用虚拟语气，谓语用“should＋动词原形”结构，其中should可以省略。
His suggestion that we (should) set off at 5∶00 a．m.is not good enough.
三、虚拟语气的特殊句型
It is (high/about) time (that) sb. did sth.(that可以省略)表示“是某人做某事的时候了”，此句型应用虚拟语气，从句用一般过去时。另外，也可使用It is (high/about) time (that) sb.should do sth.结构，其中should不能省略。
It is 11∶00 now.It is high time (that) you went/should go to bed.
情态动词答题技巧
技巧1意义判断法
所谓意义判断法就是分析语境并确定应填情态动词的含义。因此熟练掌握每个情态动词的意义和用法是做题的前提。
[考题印证]
You________park here！It’s an emergency exit.(2010·重庆，21)
A．wouldn’t B．needn’t
C．couldn’t D．mustn’t
答案 D
解析句意为：你不能把车停在这里！这是一个紧急出口。wouldn’t不会；needn’t没有必要；couldn’t不能够；mustn’t不准，禁止。故选D项。
技巧2句型判断法
有些情态动词需要用在特定的句型中，如may表示推测时，往往用在肯定或否定句中；must 表示推测只能用于肯定句中。运用此法就是通过分析所给句子的句型特点，选用具有特定句型特点的情态动词。
[考题印证]
—May I take this book out of the reading room?
—No，you________.You read it here.(2010·陕西，23)
A．mightn’t B．won’t
C．needn’t D．mustn’t
答案 D
解析句意为：——我可以把这本书带出阅览室吗？——不可以，你一定不能带出去。你就在这里读。mustn’t表示强烈的禁止。
技巧3语气判断法
情态动词主要表示说话人的语气、情感或态度，所以在解答此类试题时，一定要注意说话者的语气(这也是解题的难点)，这就要求正确理解句子，从说话者的角度去考虑问题，结合具体的语境来分析和判断，最后确定所需情态动词是否符合特定的情感需要。
[考题印证]
Just as we were sitting down to have dinner，the telephone________ring.
A.must
B.could
C.might
D.need
答案 A
解析考查情态动词。must在此表示说话人的愿望或感到不耐烦，意为“偏要”。句意为：正当我们要坐下来吃饭时，偏偏电话铃响了。
技巧4人称判断法
有些情态动词在表达某个意义时，要与特定的人称连用，这为我们选择正确答案提供了方向。[考题印证]
—I haven’t got the reference book yet，but I’ll have a test on the subject next month. —Don’t worry.You________have it by Friday.(2010·江苏，25)
A．could B．shall
C．must D．may
答案 B
解析句意为：——我还没有弄到参考书，但是下个月我将参加这门学科的测试。——不要担心，到星期五时你就有了。could能够；shall在句中表示“允诺”；must必须；may也许，
可以。
虚拟语气答题技巧
技巧1句型提示法
虚拟语气可以用在状语从句、名词性从句、定语从句中，在不同的从句中，虚拟语气用不同的动词形式来体现，如if非真实条件句(分三种情形)，wish后的宾语从句，It is time that...的定语从句等。所以，掌握了各类从句中虚拟语气的动词形式，就基本上掌握了虚拟语气的用法。
[考题印证]
If we________the other road，we might have arrived here in time for the meeting.
(2010·陕西，15)
A.take
B.had taken
C.took
D.have taken
答案 B
解析句意为：如果我们走另一条路的话，我们或许能够及时到达这里参加这次会议了。根据主句的谓语动词might have arrived可以推出，本句是与过去事实相反的虚拟语气，所以if条件句中应该用过去完成时。
技巧2特定词汇暗示法
英语中某些短语如If it were not for/had not been for, but for..., if only..., without等，往往要采用虚拟语气，它们对于解答试题有很大的帮助，掌握了这些要点知识，做起题来也就很容易了。
[考题印证]
Thank you for all your hard work last week.I don’t think we________it without you.
A．can manage B．could have managed
C．could manage D．can have managed
答案 B
解析could have done表示本能够做某事(但没做)。
1．Churchill warned Hitler，“If you dare to invade Britain，you ________pay for it with great cost.”
A．will B．shall
C．may D．should
答案 B
解析考查情态动词的用法。句意为：丘吉尔警告希特勒，“如果你胆敢侵略英国，你要为此付出巨大的代价。”shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。故选B项。
2．—What’s your feeling now?
—I am terribly sorry.If only I ________here yesterday!
A．came B．would have come
C．have come D．had come
答案 D
解析考查if only的用法。if only要是……就好了，从时间状语yesterday来看，这是对过去所发生事情的虚拟，所以用过去完成时。
3．If you________smoke，you could at least go to the smoking area.
A．can B．must C．will D．shall
答案 B
解析考查情态动词的特殊用法。must在这里表示“偏偏，非要”。句意为：要是你非吸不可的话，至少得到吸烟区里吸。
4．At a construction site in our city the workers have uncovered an ancient wall that ________ to keep the enemy out of the city，but it requires further evidence.
A．might have functioned B．would have functioned
C．must have functioned D．should have functioned
答案 A
解析might have done是对过去不太肯定的猜测。句意为：在市里的一处工地上，工人们挖出了一道可能是以前用来御敌的城墙，但这还有待进一步验证。根据句意选A。
5.—Johnson，come and look at the sea！It is beautiful，isn’t it?
—Absolutely！If only I ________here by the sea.
A.lived
B.live
C.had lived
D.will live
答案 A
解析由语境可知，if only后的情形是与现在的事实相反，此时的谓语动词用过去时。6．I’m surprised that your story ________ the first prize.
A．should win B．can win
C．should have won D．can have won
答案 C
解析句意为：你的小说竟然获得了一等奖太让我吃惊了。should在此处意为“竟然”；由语境知win这一动作发生在主句的谓语动词前，故should后接动词的完成时。7．—What is a left-luggage office?
—It is a place where luggage________be left for a certain period of time，especially at a bus or
a train station.
A．can B．should
C．must D．will
答案 A
解析考查情态动词的用法。句意为：——什么是行李寄存室？——它是行李在某一段时间被存放的地方，尤其是在公共汽车站或火车站。由句意知选A。
8．—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
解析考查情态动词。shall用在条约、规章、法令等文件中表示义务或规定，一般用于第三人称，意为“应该，必须”。句意为：——我可以用支票付账吗？——对不起，先生。只是这是我们旅馆的管理规定：付账必须使用现金。
9．If passers-by ________ a blind eye to the injured little Yueyue in Foshan，Guangdong，she ________ alive now.
A．didn’t turn；would be
B．hadn’t turned；would be
C．didn’t turn；would have been
D．hadn’t turned；would have been
答案 D
解析考查虚拟语气。由常识可知，小悦悦事件已是过去的事情，所以这是对过去发生的事情的虚拟，所以从句用过去完成时，即had done，主句用would have done。
10．It ________have been her to leave her child alone.She isn’t such a person.
A．couldn’t B．mustn’t
C．mightn’t D．wouldn’t
答案 A
解析考查情态动词的用法。由语境可知，leave应该是过去的一个动作，很显然这是对过去发生事情的否定猜测，所以应该用couldn’t have done。句意为：她不可能把孩子单独留在家里。她不是那种人。
11．The government urged that every effort ________ to bring down house prices.
A．should make B．would be made
C．be made D．must be made
答案 C
解析考查虚拟语气。此处urge后的宾语从句用“(should＋)动词原形”的形式，should 被省略；宾语从句为make every effort to do sth.的被动形式。句意为：政府紧急督促要尽一切努力降低房价。
12.They must have enjoyed themselves there，otherwise they ________ so long.
A.can’t have stayed
B.wouldn’t have stayed
C.can’t stay
D.wouldn’t stay
答案 B
解析由“must have enjoyed”可知otherwise后的情况是与过去的事实相反的，故谓语动词应用would have done。
13．He ________ the first place again，in which case，his mother will be more than happy.
A．can’t win B．would have won
C．might win D．could have won
答案 C
解析考查情态动词的用法。此处might表推测。句意为：他可能又获得了第一名，如果那样的话，他的母亲会很高兴。
14．________more energy to my study instead of being crazy about Internet games，I would be sitting in a comfortable office now.
A．If I devoted B．Had I devoted
C．Would I be devoted D．Should I be devoted
答案 B
解析考查错综虚拟句。此处从句用过去完成时，表示与过去的事实相反，如果省略if
要用倒装句；主句用“would＋动词原形”的形式，表示与现在的事实相反。15．She________well let out the secret，for she looked very upset when seeing me.
A．can B．may C．must D．shall
答案 B
解析考查情态动词的用法。may well很可能，极有可能。句意为：她很可能说出了这个秘密，因为她看见我时她看起来很难过。
情态动词精品学案 情态动词解读: ①本身有一定的词义，表示说话人的情绪、态度或语气的动词。 ②不能单独作谓语。 ③和其他动词原形构成谓语。 ④谓语动词之前。 ⑤无人称和数的变化。 ⑥否定式构成是在情态动词后面加“not”。 ⑦个别情态动词有现在式和过去式两种形式，过去式可以用来表达更加客气、委婉的语气，时态性不强，可用于过去，现在或 将来。 经典例句： We can be there on time tomorrow. 我们明天能按时去那儿。 May I have your name? 我能知道你的名字吗？ Shall we begin now? 我们现在就开始吗？ How dare you treat us like that! 你怎么敢那样对待我们! We can't carry the heavy box. 我们搬不动那箱子。 情态动词考点： 1.情态动词表示推测。 2.情态动词的基本用法。 3.情态动词的答语。 1 / 17
常见情态动词： 情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词的基本用法： 一、can, could 1) 表示能力（体力、知识、技能）时，等于be able to 。 a)Can you lift this heavy box?（体力） b)Are you able to lift this heavy box? c)Mary can speak three languages.（知识） d)Is Mary able to speak three languages? e)Can you skate?（技能） 此时可用be able to代替。 2) can表示请求和允许。 -----Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换。在疑问句中还可用could, might代替，不是过去式，只是语气更委婉，不能用于肯定句和答语中。（特别注明：这是在表示请求和允许的时候。） ---- Could I come to see you tomorrow? ---- Yes, you can. (No, I’m afraid not. ) can't在否定句中可以表示命令，不允许，但是语气比mustn't弱，具有劝慰的意思. 3)can表示“有时会”： A kind person can lose temper sometimes. 4）表示与五种感官和知觉的动词连用。 I can hear/ see you clearly from here. You can imagine how annoyed she was ! 2 / 17
英语情态动词专项练习题及答案含答案解析 一、初中英语情态动词 1．— _______ you play tennis? —Yes, and I'm a good player. A. Can B. May C. Must D. Should 【答案】 A 【解析】【分析】句意：——你会打网球吗？——会，我是一名优秀的网球员。Can能，表示能力；may可以，表示允许；must必须，表示要求；should应该，表示建议；结合句意，此处表示能力，故用情态动词can，故选A。 【点评】此题考查情态动词的用法。 2．All passengers ______ go through safety check before they take a plane. A. can B. may C. must D. could 【答案】 C 【解析】【分析】句意：所有乘客登机前必须接受安全检查。A. can能够，表示能力；B. may可以，表示许可；C. must必须；D. could可能，可以。登机前必须安检。故选C。【点评】情态动词词义辨析。以及can、may、must、could四个词的词义和用法。 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。 【点评】此题考查情态动词表推测的用法。 5．—Who it be that is knocking at the door? —It be father, but I'm not sure.
高中英语情态动词精讲与解析 概说 助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词有十三个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to. 上述两类助动词的共同特征是，在协助主动词构成限定动词词组时，具有作用词的功能： 1）构成否定式： He didn't go and neither did she. The meeting might not start until 5 o'clock. 2）构成疑问式或附加疑问式： Must you leave right now? You have been learning French for 5 years, haven't you? 3）构成修辞倒装： Nowhere can he obtain any information about his sister. Hardly had he arrived when she started complaining. 4）代替限定动词词组： A: Who can solve this crossword puzzle? B: Tom can. A: Shall I write to him? B: Yes, do. 情态助动词的特征 基本助动词与情态助动词最主要的区别之一是，基本助动词本身没有词义，而情态助动词则有自己的词义，能表示说话人对有关动作或状态的看法，或表示主观设想： What have you been doing since? （构成完成进行体，本身无词义） I am afraid I must be going. （一定要） You may have read some account of the matter. （或许已经） 除此之外，情态助动词还有如下词法和句法特征： 1）除ought和used以外，其他情态动词后面只能接不带to的不定式。如果我们把ought
高考英语情态动词知识点难题汇编含答案 一、选择题 1．–Do you know where David is? He is not in the office. –Well, he ______ have gone far—his coat is still here. A．shouldn’t B．mustn’t C．can’t D．wouldn’t 2．—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 3．What a pity! Considering his ability and experience, he ___________ it better. A．need have done B．must have done C．can have done D．might have done 4．You ______ feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it. A．may B．can C．should D．would 5．---We want someone to design the new art museum for me. ---_____ the young fellow have a try? A．Shall B．May C．Will D．Need 6．—Where is my dictionary?I remember I put it here yesterday. —You___it in the wrong place. A．must put B．should have put C．might put D．might have put 7．His opinion was shared by Chinese director Feng Xiaogang.“Some young actors are feminine （女性化的） and they _____ be more man ly,” he said during the Shanghai International Film Festival in June 2017. A．can B．must C．may D．should 8．Home is not just the place where you grow up. It ________ be a warm smile, a sincere hug, and a shoulder for you to cry on. A．must B．can C．will D．should 9．If you behave well from now on, you ___ have an Apple Watch for your 18th birthday. A．will B．shall C．can D．must 10．—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 11．I didn’t hear the phone. I ___ asleep. A．must be B．must have been C．should be D．should have been 12．Schools have been lengthening the school day to raise test marks, which ________ be costly if schools need air conditioning on hot days. A．might B．can C．dare D．need 13．There are still 30 minutes ____, so we ____ hurry with lunch.
（一） 情态动词常考点 （一） 表能力 can be able to will be able to could was/ were able to could have + ?? ???? ?? ?????? ?表示现在的能力 ：表示将来的能力 表示过去的能力 过去分词：表示过去有能力做但未做 如：I am starving to death 。I can eat two bowls of rice now 。 （现在的能力）我快饿死了，现在我能吃两碗米饭。 If you have a good sleep ，you will be able to work out this problem 。 （将来的能力）如果你好好睡一觉，你将能够解出这道题。 The fire spread through the hotel very quickly but everyone was able to get out 。 （过去有能力做并且成功的做了某事）尽管这场大火迅速蔓延到了整个宾馆，但是每个人都能够逃出 去。 I could have worked out the problem ，but I didn ’t 。 （过去有能力做但未做）我本来可以解决这个问题，但没有解决。 （二） 表推测（可能性） 1. 可能性可分为客观的可能性和具体事情实际发生的可能性两种。所谓客观的（理论的）可能性即并不涉及具体某事是否会发生，此种用法常常可以说明人或事物的特征。情态动词can 可用于肯定句中表示客观的（理论的）可能性，而表示具体事情实际发生的可能性时，can 一般不用于肯定句。如： Accident can happen on such rainy days 。 这样的多雨天气有可能会发生事故。（客观的可能性） Peter may come with us tonight ，but he isn ’t sure yet 。 彼得今晚可能和我们来，但他还没确定。（实际可能性，不用can ） 2. 表示具体事情实际发生的可能性： （1）表示具体事情实际发生的可能性的层次比较 （2）表示具体事情实际发生的可能性时，may ，must 常用于肯定句，一般不用于否定句和疑问句（may not 表示“可能不”）；can 常用于否定句、疑问句或感叹句中，表示疑惑、惊讶或不相信等意思；could 既可用于肯定句，又可用于否定句、疑问句中。如： This can ’t/ couldn ’t be done by him 。（表不相信） 这不可能是他做的。 This may not be done by him 。（表不确定） 这可能不是他做的。 He could be on his way home now 。（could 不如may/ might 常用） 他现在可能在回家的路上。 Can this be done by him ？（表示疑惑、惊讶） 这可能是他做的吗？ Mr. Bush is on time for everything 。How can it be that he was late for the opening ceremony ？（表示疑惑、惊讶） 布什先生做每件事都很按时。他怎么可能在开幕仪式上迟到呢？ I didn ’t hear the phone 。I must have been asleep 。（表肯定） 我没听到电话。我肯定已经睡着了。 3. would ，could ，might 并不一定与过去时间有关，而是表示可能性弱于他们相应的现在时形式。另外should 也不一定与过去时间有关。如： This may/ might be done by him 。（后者比前者语气弱）
高考英语情态动词讲解Newly compiled on November 23, 2020
（一）情态动词常考点 （一）表能力 如：I am starving to death。I can eat two bowls of rice now。 （现在的能力）我快饿死了，现在我能吃两碗米饭。 If you have a good sleep，you will be able to work out this problem。 （将来的能力）如果你好好睡一觉，你将能够解出这道题。 The fire spread through the hotel very quickly but everyone was able to get out。 （过去有能力做并且成功的做了某事）尽管这场大火迅速蔓延到了整个宾馆，但是每个人都能够逃出去。 I could have worked out the problem，but I didn’t。 （过去有能力做但未做）我本来可以解决这个问题，但没有解决。 （二）表推测（可能性） 1.可能性可分为客观的可能性和具体事情实际发生的可能性两种。所谓客观的（理论的）可能性即并不涉及具体某事是否会发生，此种用法常常可以说明人或事物的特征。情态动词can可用于肯定句中表示客观的（理论的）可能性，而表示具体事情实际发生的可能性时，can一般不用于肯定句。如： Accident can happen on such rainy days。 这样的多雨天气有可能会发生事故。（客观的可能性） Peter may come with us tonight，but he isn’t sure yet。 彼得今晚可能和我们来，但他还没确定。（实际可能性，不用can） 2.表示具体事情实际发生的可能性： （1）表示具体事情实际发生的可能性的层次比较
历年全国高考英语情态动词试题汇总及答案 一、单项选择情态动词 1．The door ________ open, no matter how hard she pushed. A．shouldn’t B．couldn’t C．wouldn’t D．mightn’t 【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. shouldn’t不应该；B. couldn’t 不能够；C. wouldn’t不愿意；D. mightn’t可能不。will及其过去式would均可表示一种倾向性、习惯。故选C。 2．He is a bad-tempered fellow, but he ________ be quite charming when he wishes. A．shall B．should C．can D．must 【答案】C 【解析】 【详解】 考查情态动词辨析。句意：他是个脾气不好的家伙，但当他希望自己有魅力的时候，他可以变得相当可爱。此处表示“能、可以”，故C项正确。 3．— Mum, little Ray broke his toys again! —It doesn't matter. You see, accidents _____happen. A．shall B．should C．must D．will 【答案】D 【解析】 【详解】 考查情态动词辨析。句意：——妈妈，小雷又弄坏了他的玩具。——没事的，你看，意外总会发生。A. shall将要，会；B. should应当；C. must必须；D. will总是。Will可以表示习惯，意思为“惯于，总是”。故D选项正确。 【点睛】 will/would是情态动词，其表达的意思如下。 (1)表示意志或意愿：决心，愿意，……好吗? We will do our best to save the child. 我们会尽力抢救这个孩子。 I told her to stop crying, but she just wouldn’t listen. 我叫她别哭，可她就是不愿听。 注：表示请求、建议或征求对方意见时，用Would you…? 比用Will you…?更婉转。如：Will/Would you please keep the door open? 请让门开着好吗? Will/Would you go with me? 你愿意和我一起去吗? (2)表示真理或习惯：惯于，总是。如：
高考英语情态动词专项练习 Ⅰ. 单项选择 1.I thought you______like something to read, so I have brought you some books. A. may B. might C. could D. must 2. You____to the meeting this afternoon if you have something important to do. A. needn't to come B. don't need come C. don't need coming D. needn't come 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.─_______I help you with some shoes, madam? ─ Yes, I would like to try on those brown ones. A. Will B. Should C. May D. Must 5. The reason why they ____leave wasn't explained to us. A. had B. had to C. must D. might 6. I searched for my wallet and it wasn't there. I thought I___it at home. A. left B. have left C. might have left D. could have left 7. I_____asleep because it took me a long time to realize that the telephone was ringing. A. could have fallen B. should have fallen C. must have fallen D. mustn't have fallen 8. The only thing that really matters to the children is how soon they ______return to their school. A. can B. must C. have to D. ought to 9. I want to go to the chemist's, but you _____go with me.
高考英语情态动词及其解题技巧及练习题(含答案) 一、单项选择情态动词 1．It_____ have been Tom that parked the car here, as he is the only one with a car. A．may B．can C．must D．should 【答案】C 【解析】 【详解】 考查情态动词表猜测的用法。句意：一定是汤姆把车停在这儿的，因为他是唯一有车的人。A. may可能；B. can可能；C. must一定；D. should应该。由as he is the only one with a car.可知一定是他把车停在这里的，非常有把握的肯定推测，故选C。 2．We’ll make the final decision on our scheme. ______ you change your mind, please inform us as soon as possible. A．Should B．Were C．Would D．Had 【答案】A 【解析】 【分析】 【详解】 考查虚拟语气。句意：我们将对我们的计划做最后决定。如果你改变主意，请尽快通知我们。根据语境，此处用虚拟语气，表示与将来相反，从句用should+动词原形，省略if，should提前，陈述句是：If you should change your mind……。故选A。 【点睛】 虚拟语气中的倒装 当虚拟条件句中含有 were，had，should时，可以将if省略，然后将 were，had，should，移至句首： 1）If he should fail, he would kill himself. →Should he fail, he would kill himself. 万一失败，他就会自杀。 2）If I were you, I would do it at once. →Were I you, I would do it at once. 假若我是你，我就会马上做。 要是我能做此事，我一定会做。 3）If he had seen you yesterday, he would have asked you about it. →Had he seen you yesterday, he would have asked you about it. 他昨天要是看到了你，他就会问你这事了。 该小题属于上述的第一种情况。should作为情态动词，有一种特殊的用法：在虚拟条件状语从句中表示与将来事实相反的虚拟语气，可以把should放在句首，即主语前，从而省略从属连词if。原来的表述为：If you should change your mind。故选A。
高考英语情态动词知识点真题汇编及答案解析(4) 一、选择题 1．Skills like critical thinking and analysis ________ be found on the Internet, because they must be acquired in the context of facts. A．can’t B．needn’t C．mustn’t D．shouldn’t 2．—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 3．——I called you last night, but no one answered. ——Sorry, I____________ sleeping. A．need have been B．would have been C．must have been D．should have been 4．You ______ feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it. A．may B．can C．should D．would 5．—Where is my dictionary?I remember I put it here yesterday. —You___it in the wrong place. A．must put B．should have put C．might put D．might have put 6．For all of the diligent students here, I give you my promise: Work hard, and you ________ be rewarded! A．can B．need C．shall D．could 7．Home is not just the place where you grow up. It ________ be a warm smile, a sincere hug, and a shoulder for you to cry on. A．must B．can C．will D．should 8．You ________ give me a lift. I want to walk home for exercise. A．needn’t B．couldn’t C．can’t D．mustn’t 9．-Jenny took the 8：00 bus to Guangzhou this morning. -Really? He＿＿the 9:00 train. It's much more comfortable and safer to travel by train. A．could have taken B．should take C．must have taken D．can take 10．--Is Jack still in hospital? --Yes. He _________ the bad food. A．wouldn’t eat B．shouldn’t eat C．wouldn’t have eaten D．shouldn’t have eaten 11．–Will you read me a story, Mummy? --OK. You ______have one if you go to bed as soon as possible. A．might B．must C．could D．shall 12．—I can’t think why he________ so angry. I mean no harm. —It’s typical of him to be sensitive(敏感的).
高考英语真题专项汇编卷（2017-2019）： 知识点03 情态动词和虚拟语气 1、The workers were not better organized, otherwise they ____________ the task in half the time. A. accomplished B. had accomplished C. would accomplish D. would have accomplished 2、What a pity! You missed the sightseeing, or we _________a good time together. A. had B. will have C. would have had D. had had 3、In today’s information age, the loss of data _________ cause serious problems for a company. A.need B.should C.can D.must 4、They might have found a better hotel if they _________ a few more kilometers. A.drove B.would drive C.were to drive D.had driven 5、I can’t find my purse. I___________ it in the supermarket yesterday, but I’m not sure. A.should leave B.must have left C.might leave D.could have left 6、If we ___________the flight yesterday, we would be enjoying our holiday on the beach now. A.had caught B.caught C.have caught D.would catch permission. 7、It’ｓ strange that he _______ have taken the books without the owner’ｓ A.would B.should C.could D.might 8、There is a good social life in the village, and I wish I _______ a second chance to become more involved. A.had B.will have C.would have had D.have had 9、My room is a mess, but I ___________ clean it before I go out tonight. I can do it in the morning. A.daren't B.shouldn't C.needn't D.mustn't 10、—Do you have Betty’s phone number? —Yes. Otherwise, I ___________ able to reach her yesterday. t have been A.hadn’t been B.wouldn’ C.weren’ｔ D.wouldn’t be 11、Samuel, the tallest boy in our class, ___________ easily reach the books on the top shelf.
【英语】高三英语情态动词专项训练及答案及解析 一、单项选择情态动词 1．It wasn’t right to me that such near neighbors not know one another. A．could B．would C．should D．might 【答案】C 【解析】 【详解】 考查情态动词。句意：对我来说，很不正常，如此近的邻居居然不认识。A. could可能，能够；B. would将；C. should竟然；D. might可能，也许。should 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"，住的这么近的邻居居然不认识。表示意外，所以答案选C。 【点睛】 should的用法 1、should 作为情态动词,通常用来表示现在或将来的责任或义务,译作“应该”、“应当”,这时它可以和 ought to, be supposed to 互换使用.例如：You should （= ought to ） tell your mother about it at once. 2、should 作为情态动词,可以用在条件状语从句中,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,即将 should 放在主语前面,而省略从属连词 if。例如：If you should fail to come, ask Mrs Chen to work in your place. （= Should you fail to come, ask Mrs Chen to work in your place. ） 3、should 作为情态动词,可以表示谦逊、客气、委婉之意,译为“可……”、“倒……”。例如：I should say that it would be better to try it again. 4、should 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.尤其在以 why, who, how 等开头的修辞疑问句或某些感叹句中常常译为“竟会”、“居然”。例如：How should I know it ? 我怎么会知道这件事? 5、should 作为情态动词,可以用来表示有较大可能实现的猜测、推论,通常译为“可能”、“总该……吧”,相当于 be expected to 。例如：They should be home by now, I think. 我想现在他们总该到家了吧。 6、should 作为情态动词,用在由 so that, for fear that, lest 引导的目的状语从句和 in case （that）引导的条件状语从句中,有“能够”、“可能”、“会”之意。例如：They got up early so that they should （= could/ might） catch the first bus in time. 7、should 作为情态动词,可以用于下列虚拟语气句中： (1）用在表示与将来事实相反的条件状语从句中,构成“ If …… should （do sth）……, …… would/ could/ might （do sth.）…… ”句式。 (2) 用在 suggest （propose）, arrange, plan, decide, advise, order, demand, request, desire, insist 等表示“建议”、“要求”、“命令”、“决定”、“安排”、“计划”、“主张”的动词后面接的宾语从句中。这里的 should 也可以省略。 本句中should 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，
2019高考英语专题复习情态动词（附答案） I. 考点分析 1. 情态动词有can , may , must , have to ,ought to , should ,need ,dare, used , had better ,would rather 等，可表示命令、允诺、请求、拒绝、愿望、愿意、义务、必要、可能、能力、需要、敢于等情态。 2. 情态动词没有人称和数的变化。Must , should , had better , would rather , 与ought to 没有时态的变化，只有一个形式。 3. 情态动词本身有词义，用来表示说话人的语气或情态，但因为词义不完全，所以不能单独用作谓语，必须和不带to 的不定式一起构成合成谓语。 4. 有些情态动词有过去式：can----could dare----dared may----might 5. 情态动词的否定式，一般是在情态动词后+not，如can not.也有例外：have not to , ought not to, had better not ,would rather not. used to有两种否定形式：used not to , didn’t use to,后者用的较多。 6. 注意情态动词+不定式的完成式的用法。这种结构表示过去发生的动作或状态。 Must + have +done ：表示对过去情况的一种肯定的推测与判断 May(might) + have + done：表示对已发生的事情的不太肯定的推测。might比may语气弱，表示把握更小。 Should(ought to)+ have + done：肯定句表示过去本应发生的事却没有发生；否定句表示不该发生的事却发生了。 Could + have + done：有时表示过去的时间，说明某事可能已发生，有时也表示过去本来可以作的事却未作。 Needn’t + have + done：表示本不必做的事却做了。 7. 情态动词也可以和动词的进行形式构成谓语，表示应当正在作某事，或想必正在作某事或既将、将要做某事。 You oughtn’t to be talking so much. He can’t be swimming all day.
（英语）高三英语情态动词专项训练100(附答案)含解析 一、单项选择情态动词 1．The professor warned the students that on no account ________ use mobile phones in his class. A．should they B．they should C．dare they D．they dare 【答案】A 【解析】 【详解】 考查部分倒装和情态动词。句意：这位教授警告学生们，在他的课堂上，决不应该使用手机。on no account意为“决不”，否定词放在句首，句子使用部分倒装，排除B、D项；这里表示应该，故选A。 2．—Did you attend the meeting for the experiment project yesterday? —Yes, but I don’t think I ____ because my director was there. A．need to have B．need to C．needed to D．need have 【答案】D 【解析】 【分析】 【详解】 考查情态动词+have done。句意：——你昨天参加实验项目的会议了吗?——是的，但我想我（本来）不需要，因为我的主管在那里。Think/suppose等宾语从句中如果有否定词时，要把从句的否定词not前移，即“否定前移”。所以not是从句中的否定词。“need have done”意为“本来有必要做而未做”；“needn’t have done”指过去本来没必要做而做了。根据上一句时间状语“yesterday”可知本句指的是过去发生的事。结合第二句“because my director was there(我的主管)在”可推断出，我本来不必要去。故选D。 3．Our English teacher is considerate，helpful，and warm-hearted，but sometimes she________________ be angry at our silly mistakes. A．should B．must C．can D．shall 【答案】C 【解析】 【详解】 考查情态动词。句意：我们的英语老师很体贴、乐于助人、热心肠，但有时她可能为我们愚蠢的错误而发火。can表示一种客观的可能性，但不一定会发生，故C项正确。 4．—It’s already 11 o’clock , and he ______ have been here half an hour ago. —Maybe he got caught in the rain.