1.【2015·北京】29．—Can’t you stay a little longer?
—It’s getting late. I really _____go now, My daughter is home alone.
A .may
B .can
C . must
D .dare
【答案】C
【考点定位】考查情态动词辨析
【名师点睛】本题是考查情态动词，这里考查的是语气的强度，在这里结合语境是“一定”的意思，所以要做好此类辨析题需掌握情态动词选项的语气并结合语境。34. If I _____it with my own eyes, I wouldn’t have believed it.
A . didn’t see
B. weren’t seeing
C. wouldn’t see
D. hadn’t seen
【答案】D
【解析】
试题分析：句意：如果不是我亲眼看到，我不会相信。根据后半句wouldn’t have believed可以判断是对过去的虚拟。所以从句是if+主语+ had+done的形式。故选D。
【考点定位】虚拟语气
【名师点睛】条件句中有if引导时,首先要根据句意和句子结构判断是真实条件句还是虚拟条件句,如果符合虚拟的结构,就可以根据句子中的时间和语意判断应该用哪种虚拟语气。7. Without his wartime experiences, Hemingway____ his famous novel A Farewell to Arms.
didn’t write
B. hadn’t written
C. wouldn’t write
D. wouldn’t have written
【答案】D
【解析】
试题分析：句意：没有他战时的经验，海明威就不可能写出著名的小说永别了武器。根据without his wartime experience没有战时的经历，可知表示对于过去的否定猜测，故主句用would have done，因此选D项。
【考点定位】 考查虚拟语气
【名师点睛】虚拟语气是一种动词形式，表示说话人的一种愿望，假设，怀疑，猜测建议等含义，表示的含义不是客观存在的事实，此类的题目一般难度不大，主要找对时间状语，并且看分清时间状语与主句还是从句有关系，再来确定用对现在，过去还是将来的虚拟。
4.【2015·重庆】12. You ____ be Carol. You haven’t changed a bit after all these years.
A. must
B. can
C. will
D. shall
【答案】A
【解析】
试题分析：句意：你肯定是卡罗，这些年你一点也没有变化。 must表示对现在的肯定推测。 故选A。
【考点定位】考查情态动词。
【名师点睛】must 表推测的用法 must 表示很有把握的推测，其意为“一定会”“肯定会”，只用于肯定句，一般不用于否定句或疑问句。表示对现在或未来的情况作推测，后接动词原形。You have worked hard all day. You must be tired 你辛苦一整天，一定累了（对现在情况的推测判断）I didn’t hear the phone. I must have be asleep. 我刚才没有听到电话，我想必是睡着了。
5.【2015·浙江】4.
It was so noisy that we
hear ourselves speak.
A. couldn’t
B. shouldn’t
C. mustn’t
D needn’t
【答案】A
【考点定位】考查情态动词
【名师点睛】7.
I ______ have worried before I came to the new school, for my classmates here are very friendly to me.
A. mightn’t
B. mustn’t
C. needn’t
D. couldn’t
【答案】C
【解析】
试题分析：句意：我来新学校之前本没有必要担心，因为在这里我的同学对我非常友好。needn’t have done本没有必要做某事，表示实际上已经做了某事。根据句意可知选C。
【考点定位】考查情态动词。
【名师点睛】本题考查情态动词。分析此题需抓住后句for my classmates here are very friendly to me.可知此处为本没有必要做某事，mightn’t也许不；mustn’t不允许；couldn’t不可能。再根据句意可以选出正确答案。
13.
I wish I ______ at my sister’s wedding last Tuesday, but I was on a business trip in New York then.
A. will be
B. would be
C. have been
D. had been
【答案】D
【考点定位】考查虚拟语气。
【名师点睛】本题考查wish引导的虚拟语气。由wish引起的表示愿望的虚拟语气：1．用wish表示对现在的愿望时，它所引起的宾语从句中谓语动词形式为：过去式（be动词用were）。2．用wish表示对将来的愿望时，它所引起的宾语从句中谓语动词形式为：would, could, might+ 动词原形。3．wish用于对过去的事实表示一种不可能实现的愿望时，宾语从句中的谓语动词形式为：had+动词过去分词或could, would + have +动词过去分词。分析此题需抓住时间状语last Tuesday，可以判断出此题wish用于对过去的事实表示一种不可能实现的愿望。
8.【2015·四川】2.You _____be careful with the camera. It costs!
A .must
B. may
C. can
D. will
【答案】A
【解析】
试题分析：考查情态动词。根据下文的it costs可知，照相机很昂贵，故选择A，意为：你一定要非常小心对待照相机，它很昂贵。
【考点定位】考查情态动词
【名师点睛】考查情态动词的用法。情态动词是每年高考的热点也是难点，此题主要考查情态动词基本意义的辨析。因此考生需要熟知选项中每个选项的具体意义以及之间的用法区别，然后根据句意选择正确的选项。选项B意为可能；选项C意为能够、有时会；选项D意为会、愿意等。根据句意，是说话人提出的要求，故选择A，表示必须。
9.【2015·陕西】21. 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. should
B. need
C. shall
D. may
【答案】D
【解析】
试题分析：句意：你可能觉得所有的训练都是浪费时间，但是我有100%的把握你以后会感激它的。should应该；need需要；shall将会；may（不确定）可能。所以选D。
【考点定位】考查情态动词
【名师点睛】情态动词主要考查句意和说话人的语气的强弱，结合上下文语境不难理解。23. Ellen is a fantastic dancer. I wish I
as well as her.
A. dance
B. will dance
C. had danced
D. danced
【答案】C
【考点定位】考查虚拟语气
【名师点睛】虚拟语气表示一些事与愿违或和事实不符的情况。有一些规则要记忆，如一些固定句型，还有要记住这些句型中动词的形式。I wish“但愿”后面接宾语从句用虚拟语气，和现在相反用一般过去时，
11.【2015·福建】27.—Sorry, Mum! I failed the job interview again.
—Oh, it's too bad. You have made full preparations.
must B. can C. would D. should
【答案】D.
【解析】
试题分析：考查情态动词+have done结构。A.must必须B.can可以；C.would将会；D.should应该。这里是情态+have done的结构的虚拟语气，can+have+done”表示对过去行为的怀疑，用于疑问句，译成“可能做过……吗？”；could+have+done，表示对过去事情的假设，意思是本来能够做某事而没有做；must+have+done”表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句；should+have+done”意思是“本来应该做某事，而实际没做。该对话意思为：--对不起，妈妈，我面试又失败了----噢，那太糟糕了，你应该做好充分准备的。故选D
【考点定位】考查考查情态动词+have done结构
12.【2015·江苏】28. It might have saved me some trouble ______ the schedule.
A. did I know
B. have I known
C. do I know
D. had I known
【答案】
【】【名师点睛】
13.【2015·安徽】32.It is lucky we booked a room, or we ______nowhere to stay now.
A. had
B. had had
C. would have
D. would have had
【答案】C
【解析】
试题分析：句意：我们很幸运地订到了房间，否则的话，我们现在就会无处可去了。or引导含蓄虚拟条件句，or后面是主句，相当于if we hadn’t booked a room, we would have nowhere to stay now.，根据“now”可知，是对现在进行虚拟，因此用would+动词原形，故选C。
【考点定位】考查虚拟语气
【名师点睛】本题考查含蓄虚拟语气和错综时间虚拟语气。比较常见的是if引导的虚拟条件句，由otherwise, or, without等引出的相反的情况被称为“含蓄虚拟语气”。or引出相反的情况，对过去虚拟，主句用would+have done，但是主句中有“now”，表示与现在相反，因此用would+动词原形。
2017年高考英语分项解析精编版
1.【2017·全国大纲卷】30.Although you ______ find bargains in London, it，s not generally a cheap place to shop.
A. should
B. need
C. must
D. can
【答案】D
【解析】
试题分析：考查情态动词的用法。句意：尽管你能在伦敦找到便宜货，但是一般不是购物便宜的地方。此处can意为：能。根据句意选D。
【考点定位】考查情态动词的用法。
2.【2017·重庆卷】3. I’ve ordered some pizza, so we _______ worry about cooking when we get home tired.
A. can’t
B. dare not
C. needn’t
D. may not
【答案】C
【考点定位】考查情态动词的基本用法。
3.【2017·重庆卷】10. --- I spent two weeks in London last summer.
--- Then you must have visited the British Museum during your stay, _______ you?
A. mustn’t
B. haven’t
C. didn’t
D. hadn’t
【答案】C
【解析】
试题分析：题意：逗留伦敦期间肯定去看过大英博物馆。题中last summer表示的是一个确定的过去时间，可认定must have visited是对“过去”的推断。故C项正确。
【考点定位】考查情态动词的推断用法。
4.【2017·重庆卷】13. It was John who broke the window. Why are you talking to me as if I _______ it?
A. had done
B. have done
C. did
D. am doing
【答案】A
【考点定位】考查虚拟语气的用法。
5.【2017·北京卷】34. We __________
back in the hotel now if you didn’t lose the map.
A. are
B. were
C. will be
D. would be
【答案】D
【解析】
试题分析：本题考查虚拟语气。句意：如果你不丢失地图，我们就已经到旅馆了。根据条件状语从句中“if we didn’t lose the map”可知，主从句都是对现在情况的假设，所以选用D。
【考点定位】考查虚拟语气的用法
6.【2017·北京卷】_______ I have a word with you? It won’t take long.
A. Can
B. Must
C. Shall
D. Should
【答案】A.
【解析】
试题分析：本题考查情态动词，考查方式为情态动词词义辨析。句意：我能和你谈话吗？不会很长时间的。根据上下文可知，说话人在请求听话人允许不长时间的一个交谈，所以选择表示“能不能或可以不可以”的A
【考点定位】考查情态动词的用法。
7.【2017·江西卷】30. Life is unpredictable; even the poorest ________become the richest.
A. shall
B.
must
C.
need
D. might
【答案】D
【解析】
试题分析： 根据句子意思，后句讲的是一种可能性。Need 需要；must 一定；shall 表较大的可能性，如：With an early start he should be here by noon. 动身得早，他中午就该到这里了。shall表示推断时，语气较肯定，通常是指非常可能的事(因为暗示有一定的事实依据或合乎常理)，而may, might, could等表示推测时，则语气较不肯定，尤其是might, could。 因此D选项正确。句意为“ 人生是不可预测的；甚至最穷的也可能变得最有钱。”
【考点定位】考查情态动词的用法
8.【2017·四川卷】6. I still remember my happy childhood when my mother ______ take me to Disneyland at weekends.
A. might B. must C. would
D. should
【答案】C
【解析】
试题分析: A可能；B必须；C将；D应该。Would可以表示“过去常常”，强调过去经常发生的事情。根据语境判断此处指过去妈妈经常在周末带他去，所以选C。句意：我仍然记得我幸福的童年，那时妈妈经常带我在周末的时候去迪士尼乐园。
【考点定位】考查情态动词和虚拟语气。
9.【2017·福建卷】32.
no modern telecommunications, we would have to wait for weeks to get news from around the world.
A. Were there
B. Had there been
C .If there are
D. If there have been
【答案】A
【】(be通常用were)，主句谓语用“should (would, could, might)+动词原形”。二、与过去事实相反。若与过去事实相反，虚拟语气的条件从句的谓语用过去完成时(had+过去分词)，主句谓语用“should (would, could, might)+have+过去分词”。三、与将来事实相反。若与将来事实相反，条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”。
【考点定位】考查虚拟条件句。
31. It was sad to me that they, so poor themselves, ________ bring me food.
A. might
B. would
C. should
D. could
【答案】C
【解析】
试题分析：考查用于表示必要、适当、惊奇、遗憾等。故正确。25. My book, The House of Hales, is missing. Who ________ have taken it?
A. need
B. must
C. should
D. could
【答案】D
【解析】试题分析：考查情态动词辨析及语境理解。Need用在情态动词，只用在否定句和疑问句中，“必要”；must“必须”，表示肯定推测，用在肯定句中；should“应该、竟然”；could“能够、可能”。题干中的说话人书丢了，应该是猜测可能是谁拿走了，故选D。
考查情态动词辨析及语境理解。
30．People are recycling many things which they
away in the past.
A. had thrown
B. will be throwing
C. were throwing
D. would have thrown
【答案】D
【知识拓展】
所谓含蓄条件句就是利用语境不直接说出条件的句子。这种句子可以分为两类：一种是广义的含蓄条件句，另一种是狭义的含蓄条件句。1. 广义含蓄指的是不用连词 if 或 unless 介绍条件，而是改用其他方式。事实上这些表达方式也是同样是条件状语。（1）用介词引入条件： * but for（如不是, 如没有）：注意，凡是出现这个复合介词的句子，必须要用虚拟语气， * without/with (在不具备/具备…的条件下), * under （在…条件下）（2）分词短语充当条件（分词短语本身就具有充当条件状语的功能），（3）表示不具备条件的连词连词：but,but that,or或otherwise，2. 狭义含蓄指的是不用任何语言方式显示条件，而是把条件隐藏在具体的原环境中，（1）用上下文暗示条件，（2）用委婉语气暗示条件，（3）用表示愿望的语气暗示条件。
考查含蓄虚拟语气
If Mr. Dewey _____ present, he would have offered any possible assistance to
the people there.
A. were B. had been G. should be D. was
【答案】B
【考点定位】考查动虚拟语气用法
【知识拓展】
1. 表示与现在事实相反或不可能发生：条件状语从句：一般过去时（虚拟语气中be→were）主句用：would(should, could, might)+动词原形。
If we had time now, we would read it again.
If I were you, I would work hard.
2. 表示与过去事实相反或不可能发生：条件状语从句：had+过去分词；主句：would(should, could, might)+have+过去分词。
If I had known your telephone number then, I would have called you.
3. 表示与将来的事实可能相反或不可能发生：条件状语从句：①一般过去时②should +动词原形③were to+动词原形；主句：would(should, could, might)+动词原形。
If it should rain, the crops would be saved.
14.【2017·湖南卷】25. — I’ve prepared all kinds of food for the picnic.
—Do you mean we_____ bring anything with us?
A. can’t B. mustn’t C. shan’t
D. needn't
【答案】D
【解析】
试题分析：考查A. can’t不能够；B. mustn’t 不许，不可以；C. shan’t将不；D. needn't不必。故正确。16. They were abroad during the months when we were carrying out the investigation, or they _____ to our help.
A. would have come B. could come C. have come D. had come
【答案【2017浙江】3. I ________ myself more—it was a perfect day.
A. shouldn’t have enjoyed
B. needn’t have enjoyed
C. wouldn’t have enjoyed
D. couldn’t have enjoyed
【答案】D
考查情态动词。 2017·陕西卷]21The children
lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
A. must have got
B. must get
C. should have got
D. should get
【答案】A
【解析】由otherwise后的would have been可知时对过去情况的推测。而此处情态动词表示猜测，意思是：一定，肯定，用must；表示对过去发生的动作的猜测，其形式是must +have done，故选A。句意是：孩子们一定是在树林里迷路了，否则他们会按计划到达湖边的营地。
考查虚拟语气。2017·重庆卷]29 —It rained cats and dogs this morning.I'm glad we took an umbrella.
—Yeah, we would have got wet all over if we
________.
A．hadn't
B．haven't
C．didn't
D．don't
【答案】A
考查虚拟语气。
2017·重庆卷] 26—What are
you doing this Saturday?
—I'm not sure, but I
________ go to
the Rolling Stones concert.
A．must
B．would
C．should
D．might
【答案】D
【解析】由前面的I'm not sure 可知是不太确定，因此用might表示有可能。句意：—这个周六你打算做什么？—我不确定，但我有可能去看滚石乐队的演唱会。
考查情态动词。2017·天津卷] 9No one
________
be more generous; he has a heart of gold.
A. could
B. must
C．dare
D．need
【答案】A
【解析】后句说他有一颗金子般的心，前句表达的是“没人比他更慷慨”；此句是“否定词＋形容词的比较级”相当于形容词的最高级。句意：没人比他更慷慨了；他有一颗金子般的心。
考查情态动词。
2017·课标全国卷Ⅱ] 6Since nobody gave him any help, he
________
have done the research on his own.
A. can
B. must
C. would
D. need
【答案】B
【解析】句意：既然没有人给他任何帮助，他一定是自己做的那项研究。此处用must表示接近事实的推测。can能够，也可以用在一般疑问句或否定句中表示推测，意为“怎么可能或不可能”；would过去常常，愿意；need需要。
考查情态动词。2017·江西卷] 29
When I was a child, I ________ watch TV whenever I wanted to.
A. should
B. could
C. must
D. need
【答案】B
考查情态动词的用法。2017·四川卷] 5—Why are your eyes so red? You ________
have slept well last night.
—Yeah, I stayed up late writing a report.
A. can't
B. mustn't
C. needn't
D. won't
【答案】A
【解析】can't＋have done对过去发生的事的否定推测。句意：——为什么你的眼睛那么红？你昨晚可能睡得不好。——是啊，我熬夜写报告。
考查情态动词。2017·湖南卷] 32He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.
A. wouldn't
B. shouldn't
C. couldn't
D. mustn't
【答案】C
【解析】句意：尽管他想睡，但是却睡不着，当时他一直在拼命想着一件事，一直到想清楚为止。此处couldn't意为 “不能”，符合题意。
考查情态动词辨析。2017·江苏] 30I should not have laughed if I
________
you were serious.
A．thought
B．would think
C．had thought
D．have thought
【答案】C
【解析】句意为：如果我认为你是认真的话，我就不会笑了(实际上我笑了)。根据主句的谓语动词可知是与过去是相反的虚拟，所以if从句的谓语动词用过去完成时，故选C项。
考查虚拟语气。2017·福建卷] 30—Do you think George has passed the driving test?
—No. If so, he ________his car to our college yesterday.
A. would drive
B. drove
C. would have driven
D. had driven
【答案】C
考查虚拟语气的用法。 2017·北京卷] 34 If we ________
a table earlier, we wouldn't be standing here in a queue.
A. have booked
B. booked
C. book
D. had booked
【答案】D
【解析】条件句“如果我们早订了桌子”是对过去的假设，所以用过去完成时的形式，选D。
考查虚拟语气。2017·北京卷] 35—You needn't take an umbrella. It isn't going to rain.
—Well, I don't know. It
________
do.
A. might
B. need
C. would
D. should
【答案】A
【解析】对于下雨与否不知道，所以选用语气最弱的情态动词might，仅仅表示非常不肯定的猜测。
考查情态动词。2017·安徽卷]It
________
be the vocabulary that caused you the problem in the exercise because you know a lot of words.
A．may
B．couldn't
C．should
D．needn't
【答案】B
【解析】由语境“因为你知道很多词汇”可知，“你练习中的问题不可能是词汇量不够造成的”，故用couldn't表示否定推测，意思是“不可能”。
考查情态动词表推测的用法。2017·安徽卷] I
________
to my cousin's birthday party last night, but I was not available.
A．went
B．had gone
C．would go
D．would have gone
【答案】D
【解析】前一分句使用了含蓄条件虚拟语气，表示与过去事实相反的假设，主句应该用would have done结构。完整表达是：I would have gone to my cousin's birthday party last night if I had been available。
考查虚拟语气。
2017·辽宁卷]31 Harry is feeling uncomfortable.He
________ too much at he party last night.
A．could drink
B．should drink
C．would have drunk
D．must have drunk
【答案】D
【解析】must have done表示对过去肯定推测，句意“他昨晚在派对上一定喝多了”。
考查情态动词。
2017·天津卷] 14If he had spent more time practicing speaking English before, he ________
able to speak it much better now.
A. will be
B. would be
C．has been
D．would have been
【答案】B
考查虚拟语气。
2017·新课标全国卷Ⅰ] 29The 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】此处would not用来表达：即使某人努力让某事发生，某事就是不发生。即为“偏不”的意思。故C正确。句意：无论她怎么用力推，门就是打不开。
本题考查情态动词的用法。
2017·陕西卷]12My mom suggests that we
eat out for a change this weekend.
A. should
B. might
C. could
D. Would
【答案】A
【解析】题干中主句的谓语动词是suggest，其后跟宾语从句时用虚拟语气，即从句谓语动词用should+动词原形，should可以省略，故选A。句意：我妈妈建议说本周末改变一下，我们出去吃饭。
考查虚拟语气。
【2017浙江】8. Eye doctors recommend that a child’s first eye exam ______ at the age of six months old.
A. was
B. be
C. were
D. is
【答案】B
【解析】从前面recommend……知，此处是recommend后面宾语从句中的虚拟考查点，根据语法规则知，从句中谓语动词用should do，其中should可以省略，选B项。
考查虚拟语气。
【2017江西卷】22．We
have bought so much food now that Suzie won’t be with us for dinner.
A．may not B．needn’t C．can’t D．mustn’t
【答案】B
考察情态动词的用法
【2017湖南】29. Sorry, I am too busy now. If I ____ time, I would certainly go for an outing with you.
A. have had B. had had C. have D. had
【答案】D
【解析】从句中用一般过去时表现在的假设。动词的时态 条件状语从句中的虚拟语气 一般过去式表对现在的假设
【考点定位】此题考查条件状语从句中的虚拟语气。
【2017重庆卷】25.——____you interrupt now? Can’t you see I’m on the phone?
——Sorry Sir, but it’s urgent.
A. Can
B. Should
C. Must
D. Would
【答案】 C
情态动词用法
【2017辽宁卷】24.
One of our rules is that every student
wear school uniform while at school.
A.
might
B.
could
C.
shall
D.
will
【答案】C
【解析】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。这儿是说根据学校规定学生在校时都必须要穿校服。
情态动词
【2017四川卷】19. I got close enough to hear them speaking Chinese, and I said “Ni Hao ” just as I ____ do in China.
A. must
B. might
C. can
D. should
【答案】 B
【解析】句意为：我靠他们足够的近以听见他们说汉语，而且我会像我在中国可能做的那样说“你好”。might表示“可能”。故选B。
本题考查情态动词。
【2017陕西卷】17. If may car _________more reliable, I would have driven to Lhasa instead of flying last summer.
A. was
B. had been
C. should be
D. would be
【答案】B
【解析】根据主语的谓语动词可知题干是表示与过去事实相反的虚拟语气，从句谓语动词用had done，选B。
考查虚拟语气。
【2017陕西卷】23.I______ thank you too much for all your help to my son while we were away from home.
A. won’t
B. can’t
C. can
D. will
【】B
【解析】所填情态动词与too 构成固定句型can’t/couldn’t …too…，意思是：再……都不为过，选B。
考查情态动词。
【2017北京卷】33. We ______ the difficulty together, but why didn’t you tell me?
A. should face
B. might face
C. could have faced
D. must have faced
【答案】C
【考点定位】本题考查虚拟语气的用法。
【2017北京卷】35. Don’t handle the vase as if it ____ made of steel.
A. is
B. were
C. has been
D. had been
【答案】B
【解析】as if引导的方式状语从句中一般使用虚拟语气。对现在的假设用一般过去时，其中be动词用were。句意：别把那个花瓶当成钢制的来拿。
【考点定位】本题考查虚拟语气。
【2017全国II】17. I’m going to Europe on vacation together with John if I _______ find the money.
A. can
B. might
C. would
D. need
【答案】A 【解析】此处考查了can的本意“能”，表示“能力”。句意：我要和John一起去欧洲度假，如果我能找到钱。
考查情态动词的用法。
15. 【2017天津卷】 We wouldn’t have called a taxi yesterday if Harold __________us a ride home.
A. didn’t offer B. wouldn’t offer
C. hasn’t offered D. hadn’t offered
【答案】D
【解析】句意：如果昨天Harold不开车送我们回家，我们可以打的。虚拟语气中若表达与过去的事实相反，从句中用过去完成时，主句中用would have done，故选D。
【考点定位】此题考查虚拟语气。
8【2017天津卷】 It’s quite warm here; we __________turn the heating on yet.
couldn’t
B. mustn’t
C. needn’t
D. wouldn’t
【答案】C
【解析】句意：这里很暖和，我们不需要打开暖气。needn’t不必要。故选C。
【考点定位】此题考查情态动词。
【2017全国新课程】30. I
use a clock to wake me up because at six o'clock each morning the train comes by my house.
A. couldn't
B. mustn't
C. shouldn't
D. needn't
【答案】D 【解析】此处考查情态动词，needn’t+动词原形表示：没有必要做某事。句意：我没有必要用闹钟唤醒我，因为每天早上6点火车都经过我的房子。
考查情态动词的用法。
【2017山东卷】30. If we _______ adequate preparations, the conference wouldn’t have been so successful.
A. haven’t made
B. wouldn’t make
C. didn’t make
D. hadn’t made
【答案】D
【解析】，，，would have done的形式。句意：如果我们没有做好充分的准备，会议就不会这样成功。
【考点定位】考查虚拟语气的用法。
【2017福建卷】31. We lost our way in that small village, otherwise we________ more places of interest yesterday.
A. visited B. had visited C. would visit
D. would have visited
【答案】D
本题考查虚拟语气的用法
【2017江苏卷】35. — Happy birthday!
—Thank you! It’s the best present I for.
A. should have wished B. must have wished
C. may have wished D. could have wished
【答案】D
【解析】AB项意为“一定希望”；C项意为“也许希望”；D项意为“可能希望”。句意为：——生日快乐！——谢谢你！这是我所能期望的最好的礼物了。根据句意可知，应选D项。
【举一反三】情态动词＋have+过去分词表示与过去事实上相反的情况，也是高考单项选择题涉及到情态动词的一个重要方面。高考对情态动词表示虚拟‘用法，表示与过去事实相反的情况。近几年高考，主要侧重should （not）have done 这一句式上，表示本来不该做却做了或本来该做却未做的事，在复习时，还应关注其它几种虚拟形式，如need (not)have done 表示本来需要做而未做或本来不需要而做的事等等，以做到有备无患。
【解析】该句所表达的意思是刚才我不因该吃那么多炸鸡，而实际上是吃了那么多，可以判断用shouldn’t have eaten. 答案是 C。
+完成式
【2017江苏卷】28. Days later, my brother called to say he was all right, butsay where he was.
A. mustn't B. shouldn't C. wouldn't D. mightn't
【答案】C
情态动词—would
【2017安徽卷】31. Grace doesn't want to move to New York because she thinks if she
there, she wouldn't be able to see her parents very often.
A. lives
B. would live
C. having asked
D. Were to
live
【答案】D
【解析】在表示将来的情况下，主句中第一人称可用should，其他人称用would；从句中任何人称都用should,不可用would.此处were to live用于虚拟语气，表示与将来的事实相反。
考查情态动词。
【2011全国卷,32】They
have arrived at lunchtime but their flight was delayed.
A.will
B.can
C.must
D.should
【答案】D
【解析】句意为“他们本该午饭时到达，但他们的航班推迟了。”will have done将来可以完成；can have done可能做过……吗？表示对过去行为的怀疑，用于疑问句；must have done一定做过某事，表示对过去事情的肯定推测；should have done本来应该做某事，而实际没做。but their flight was delayed这样的结果，说明他们本来该到达却没有到达，因此选D。
考查虚拟语气的用法。
【2011全国卷II,8】If you
smoke, please go outside.
A. can
B. should
C. must
D. may
【答案】C
【解析】句意为“如果你非得要抽烟，请到外面去抽。”must (表示主张)一定要，坚持要。根据后一句please go outside的要求，选C。
考查情态动词的用法。
【2011北京卷,24】——I don’t really like James. Why did you invite him?
——Don’t worry. He
come. He said he wasn’t certain what his plans were.
A. must not
B. need not
C. would not
D. might not
【答案】D
考查情态动词的用法。
【2011北京卷,28】——Where are the children? The dinner’s going to be completely ruined.
——I wish they
always late.
A. weren’t
B. hadn’t been
C. wouldn’t be
D. wouldn’t have been
【答案】A
【解析】句意为“——孩子们哪儿去了？这顿饭快要吃不起来了。——我但愿他们不要老是迟到。”wish引出虚拟语气，题干中出现always，从句虚拟使用一般过去时。选A。
考查虚拟语气的用法。
【2011北京卷,30】Maybe if I
science, and not literature then, I would be able to give you more help.
A. studied
B. would study
C. had studied
D. was studying
【答案】C
【解析】句意为“或许当初我要是学了理科而不是文科，现在就能给你更多的帮助。”then表示过去的时间，if引导的从句是对过去的虚拟，因此使用过去完成时。选C。
考查虚拟语气的用法。
【2011天津卷,15】I ______ sooner but I didn’t know that they were waiting for me.
A. had come
B. was coming
C. would come
D. would have come
【答案】D
【解析】句意为“我本来可以早点来，但我真不知道他们在等我。”but I didn’t know表示了过去时间，因此前句是对过去的虚拟，用主语+should / would / could / might + have done表达，故选D。
考查虚拟语气的用法。
【2011上海春招,27】Some young people these days just ______ go out of their homes to contact the real world.
A. mustn’t B. won’t C. mightn’t D. shouldn’t
【答案】B
【解析】句意为“现在一些年轻人就是不愿意走出家门接触真正的世界。”mustn’t禁止，不允许；won’t不愿意，就是不，偏不，具有主观性；mightn’t可能不；shouldn’t不应该。根据句意选B。
考查情态动词的用法。
【2011江苏卷,34】——I left my handbag on the train, but luckily someone gave it to a railway official.
——How unbelievable to get it back! I mean, someone ______ it.
A. will have stolen
B. might have stolen
C. should have stolen
D. must have stolen
【答案】B
考查虚拟语气的用法。
【2011福建卷,25】——Shall I inform him of the change of the schedule right now?
——I am afraid you
, in case he comes late for the meeting .
A.will
B.must
C.may
D.can
【答案】B
【解析】句意为“——需要我现在就通知他计划有变吗？——恐怕你得这样做，以防他开会迟到。”must (表示必要、命令或强制)必须,得。根据后半句，选B。
考查情态动词的用法。
【2011福建卷,34】——Pity you missed the lecture on nuclear pollution.
——I
it, but I was busy preparing for a job interview.
A.attended
B.had attended
C.would sttend
D.would have attended
【答案】D
【解析】句意为“——真可惜你错过了那场有关核污染的讲座。——我本可以去听的，但我当时忙于工作面试。”对过去的虚拟，用主语+should / would / could / might + have done表达，故选D。
考查虚拟语气的用法。
【2011安徽卷, 26】——What do you think of store shopping in the future?
——Personally, I think it will exist along with home shopping but _____.
A. will never replace
B. would never replace
C. will never be replaced
D. would never be replaced
【答案】C
考查情态动词的用法。
【2011浙江卷,11】——How’s your new babysitter?
——We ________ask for a better one. All our kids love her so much.
A. should
B. might
C.
mustn‘t
D. couldn’t
【答案】D
【解析】句意为“——你的新保姆怎么样？——找不到更好的了。我们的孩子们很喜欢她。”should应该；might可能，可以；mustn‘t禁止；couldn’t不可能。根据句意选D。
考查情态动词的用法。
【2011四川卷,20】The police still haven’t found the lost child, but they’re doing all they
.
A.can
B.may
C.must
D.should
【答案】A
【解析】句意为“警方依然没有找到失踪的孩子，但他们现在正在做他们所能做的一切。”can可以，能够；may可能，许可；must必须；should应该。根据句意，选A。
考查情态动词的用法。
【2011重庆卷,25】——Why didn’t you come to Simon’s party last night?
—— I wanted to ,but my mom simply _________ not let me out so late at night.
A. could
B. might
C. would
D. should
【答案】C
考查情态动词的用法。
【2011陕西卷,22】I__________through that bitter period without your generous help.
A. couldn’t have gone
B. didn’t go
C. wouldn’t go
D. hadn’t gone
【答案】A
【解析】句意为“没有你的慷慨帮助，我是不可能度过那段痛苦的时期的。”that bitter period表示过去的时间，对过去的虚拟语气用主语+should / would / could / might + have done表达，故选A。
考查虚拟语气的用法。
【2011陕西卷,24】——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
【答案】D
【解析】句意为“——妈妈，可以读一个故事给我听吗？——好的，如果你马上上床睡觉的话。”shall 用于陈述句中的第二、第三人称时,表示说话人的意图、允诺、警告、命令、决心等，题中是母亲对儿子的承诺，故选D。
考查情态动词的用法。
【2011湖南卷,28】No one ________ be compared with Yao Ming in playing basketball.
A. can
B. need
C. must
D. might
【答案】A
【解析】句意为“在打篮球方面没人能比得上姚明。”can可以，能够；need需要；must必须；might可能。故根据题意，选A。
考查情态动词的用法。
【2011辽宁卷,21】If you
go, at least wait until the storm is over.
A. can
B. may
C. must
D. will
【答案】C
【解析】句意为“如果你非得走话，至少也要等到这暴风雨过去后。”can可以，能够；may 可能，许可；must(表示主张)一定要，坚持要；will将要，愿意。根据后句的劝告，选C。
考查情态动词的用法。
【2011江西卷23】It _______ be the postman at the door. It’s only six o’clock.
A. mustn’t
B.can’t
C.won’t
D.needn’t
【答案】B
考查虚拟语气的用法。
【2011江西卷28】We _____John’s name on the race list yesterday but for his recent injury.
A.will put
B. will have put
C. would put
D. would have put
【答案】B
【解析】句意为“要不是因为他最近受伤，我们本应该把John的名字加进昨天的比赛名单中。”but for 是虚拟语气的提示，yesterday表示过去的时间。对过去的虚拟，用主语+should / would / could / might + have done表达，故选B。
考查虚拟语气的用法。