2017最新命题题库大全2005-2011高考英语试题分项解析汇编 专题05 情态动词与虚拟语气
（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
【考点】考查虚拟语气的用法。
【解析】句意为“——我把我的手提包落在火车上了。但幸运的是，有人拾到交给了铁路部门。——失而复得，简直难以置信！我是说，本来可能有人会偷了去。”will have done将来可以完成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might have stolen 过去可能做过，语气比较婉转或不肯定福建卷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
【考点】考查情态动词的用法。
【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B。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
【考点】考查虚拟语气的用法。
【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
【考点】考查情态动词的用法。
【解析】句意为“——你对将来的商店购物怎么看？——我个人认为会与在家购物并存，但商店购物不会被取代。”根据I think it will exist along with home shopping，排除虚拟的选项D，这是表示将来的时间，考虑到被动语态，选C。
（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
（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
【考点】考查情态动词的用法。
【解析】句意为“——我真不喜欢James。你为何请了他？——别担心。他可能来不了。他说他的计划还没安排好。”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。选D。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
【考点】考查虚拟语气的用法。
【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。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
【考点】考查虚拟语气的用法。
【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。卷’t know that they were waiting for me.
A. had come
B. was coming
C. would come
D. would have come
【答案】D
【考点】考查虚拟语气的用法。
【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上海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
【考点】考查情态动词的用法。
【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。
（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
【考点】考查情态动词的用法。
【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。
（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
【考点】考查情态动词的用法。
【解析】句意为“——昨晚你为什么没来参加Simon的聚会？——我想来的，但我妈妈是不愿我这么晚出来。”could可以，能够，表示可能性或用于婉转语气；might可能，表示不确定；would愿偏要，表示意志；should应该，表示建议、命令、决定等。根据题意选C。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
【考点】考查虚拟语气的用法。
【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
【考点】考查情态动词的用法。
【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。
（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
【考点】考查情态动词的用法。
【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。
（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
【考点】考查情态动词的用法。
【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。
（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
【考点】考查虚拟语气的用法。
【解析】句意为“不可能是邮递员在门口，才六点钟呢。”mustn’t 禁止，不允许；can’t 不可能；won’t 不愿意，就是不，偏不；needn’t 不需要。根据后一句中“现在仅仅是六点”，only一词肯定语气强烈，前一句为门外的绝不可能是邮递员。故选B。
（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
【考点】考查虚拟语气的用法。
【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安徽Jack described his father, who _______a brave boy many years ago, as a strong– willed man
A. would be
B. would have been
C. must be
D. must have been
【答案】D
【考点】本题考查情态动词推测用法。
句意为 “杰克把他的父亲描述为一个意志坚强的人, 他的父亲多年前肯定很勇敢。”用must have been表示对过去事情的肯定推测。
Bob would have helped us yesterday, but he-_______
A. was busy
B. is busy
C. had been busy.
D. will be busy
【答案】A
【考点】本题考查虚拟语气与时态。
【解析】前句表示对过去的虚拟, 而but之后表示过去的客观事实, 故用一般过去时态。
（2010湖南You
buy a gift, but you can if you want to.
A. must
B. mustn’t
C. have to
D. don’t have to
【答案】D
【考点】本题考查情态动词don’t have to 意为 “没有必要”, 符合语境, 句意为：“你没有必要买礼物, 但如果你想买的话, 你也可以买。”
If he
my advice, he wouldn't have lost his job.
A. followed
B. should follow
C. had followed
D. would follow
【答案】C
【考点】考查虚拟语气。
【解析】根据 “wouldn’t have lost”可判断if引导的状语从句表示与过去事实相反的虚拟, 故选C项。
（2010江西I have told you the truth. ______ I keep repeating it?
A Must
B Can
C May
D Will
【答案】A
【考点】考查情态动词的用法。
must 必须, 一定 can 可以, 能够 may 也许 will 意愿, 倾向性动作, 前半句说我告诉你事实了, 这里用的是现在完成时, 表示过去的动作对现在造成了影响, 既然我已经说了, 我还必须重复一遍吗？
山东I_______ have watched that movie —it’ll give me horrible dreams.
A. shouldn’t
B. needn’t
C. couldn’t
D. mustn’t
【解析】句意：约翰独自去了医院。如果他告诉我的话, 我会跟他一起去的。前一句是陈述语气, 说明动发生在过去, 而且后一句的主句已经是would have gone说明是与过去事实相反的虚拟语气。与之对应的从句结构, 应该用had +过去分词。
（2010四川—
I take the book out? w_w w. k#s5_u.c o*m
—I’m afraid not.
A. Will
B. May
C. Must
D. Need
【答案】B
【考点】考查情态动词。
表请求可用情态动词can, may, could, might ,表允许用can, may.句意为： “我可以将这本书带出去吗？” “恐怕不行”。故应选表情请求的情态动词may。正确【答案】为B。
全国ⅠJust be patient .You ______ expect the world to change so soon
A. can’t
B. needn’t
C. may not
D. whether
【答案】A
【考点】考查情态动词。
句意：耐心一点儿, 你不能期望世界变化如此快。通过选项此题考查情态动词, can’t在否定句中可以表示推测, 译为不可能,可以表示能力, 译为不能够, 也可以表示命令, 不允许, 但是语气比mustn’t弱, 具有劝慰的意思, 根据句意此题中选择A, can’t表示劝慰。
江苏—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.
A. could
B. shall
C. must
D. may
w_
【答案】B
【考点】考查情态动词。
shall在第二人称中表示允诺, 还可以表示强制, 命令, 威胁, 警告。还有在法律条文中的要求或规定。
George is going to talk about the geography of his country, but I’d rather he_______ more on its culture.
A. focus
B. focused
C. would
focus
D. had focused
【答案】B
【考点】本题考查虚拟语气。
【解析】would rather后应用虚拟语气, 表示与现在时间相反, 用动词的过去式
陕西May I take this book out of the reading room?
No, you
. You read it in here.
A. mightn’t
B. won’t
C. needn’t
D. mustn’t
【答案】D
【考点】考查情态动词。
英语中用could, might表示询问或征求意见的问句中, 肯定性应答要用can或may来代替could或might, 而may或might征求意见的问句否定应答时要用mustn’t, 故本题选D。
陕西If we ___ the other road, we might have arrived here in time for the meeting.
A. take
B. had taken
C. took
D. have taken
【答案】B
【考点】考查虚拟语气。
【解析】所填词做虚拟语气中条件状语从句的谓语, 根据主句的谓语动词形式might have ar rived可知题干是与过去事实相反, 故所填部分用had+过去分词形式, 选B。
（2010全国ⅡI’m afraid Mr. Harding _________see you now. He’s busy.
A. can’t
B. mustn’t
C. shouldn’t
D .needn’t
【答案】A
【考点】情态动词考查。
结合语境, 根据情态动词用于疑问或否定推测时, 要用can’t。
湖北It’s said that they have swum to the island from the continent, but they ________（不可能做到）because the ocean in between is too wide. (do)
can’t/ couldn’t have done it
【考点】情态动词
当要对过去进行肯定的推测时, 要用 “can’t/couldn’t+have+done”的结构
Mr. Johnson insisted that the problem worthy of attention ________ (讨论) at the meeting. (discuss)
(should) be discussed
【答案】D
【考点】本题考查虚拟语气中过去的虚拟。
第二个说话人的If条件句是我们选择正确【答案】的关键。要是当时下雨了, 现在的情况就好的多了！我的蔬菜也就不会死了。过去没有下雨, 所以我的蔬菜干死了也是发生在过去。而将句子还原则为If it had rained even a drop, my vegetables wouldn't have died.If+ had done, 主句为couldn’t/ shouldn't/ wouldn't have done.
浙江Had I known about this computer program, a huge amount of time and energy
.
A．would have been saved
B．had been saved
C．will be saved
D．was saved
【考点】本题考查虚拟语气。
根据句子的倒装特征判断此处是省略了if的虚拟语气, 原形是：If I had known about this computer program, a huge amount of time and energy
.故选择A。句意为：如果我早知道这个电脑程序, 就可以节省大量的时间和精力了。
浙江 “You ____ have a wrong number,” she said. “There’s no one of that name here.”
A. need
B. can
C. must
D. would
【答案】C
【考点】本题考查情态动词肯定的猜测, 用must
---Sorry, Professor Smith. I didn't finish the assignment yesterday.
---Oh, you
have done it as yesterday was the deadline.
A. must
B. mustn't
C. should
D. shouldn't
【答案】C
【考点】本题考查的是虚拟语气
【解析】此处表示和过去事实相反的情况, 应该用should + have + 过去分词。本来应该做, 而未做
（2010重庆﹚You
park here! It’s an emergency exit.
A. wouldn’t B. needn’t C. couldn’t D. mustn’t
【答案】D
【考点】本题考查情态动词“这是一个紧急出口”可知, 这儿是禁止某人停车, 所以用mustn’t表示禁止某人做某事。符合语境。
（2009安徽Some people who don’t like to talk much are not necessarily shy；they
just be quiet people.
A. must
B. may
C. should
D. would
【考点】本题考查情态动词的用法。
【解析】有些人不喜欢讲话are not necessarily shy, 他们可能是安静的人, 表示 “可能”之意。
北京One of the few things you ____ say about English people with certainty is that they talk a lot about the weather.
A. need
B. must
C. should
D. can
【答案】D
【考点】本题考查情态动词的用法。
【解析】关于英语的话题中, 你绝对有把握谈论的极少几个话题之一, 就是很多时候都在谈论天气。
湖南— It’s the office! So you
know eating is not allowed here.
— Oh, sorry.
A. must
B. will
C. may
D. need
【答案】A
【考点】本题考查情态动词的用法。
【解析】句意为：这是办公室！因此你必须知道吃的不允许带到这里。must表示 “绝不”的意思。
海南What do you mean, there are only ten tickets? There
be twelve
A. should
B. would
C. will
D. shall
【答案】A
【考点】本题考查情态动词的用法。
【解析】你这是什么意思, 只有十张票吗?应该有十二人。should表示 “应该, 应当”。
上海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
【考点】考查情态动词表推测通过意思我们知道是表示可能的推测, 而且是过去的可能, 表达的是一定是…比较肯定的推测, 所以我们用must have done 的形式。
四川—I don’t care what people think.
—Well, you _______
A. could
B. would
C. should
D. might
【答案】C
【考点】考查情态动词的用法。
答话的人提了一个建议——你应该关注别人对你的评价的。should可以用来向别人提建议, 所以【答案】为：C
天津This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.
A. would
B. should
C. could
D. might
【答案】B
【考点】考查情态动词的用法。
句意为：重庆—Hi, Tom. Any idea where Jane is?
—She_____in the classroom. I saw her there just now.
A. shall be
B. should have been
C. must be
D. might have been
【答案】C
【考点】考查情态动词的用法。
（2009全国III can’t leave. She told me that I
stay here until she comes back.
A. can
B. must
C. will
D. may
【答案】B
【考点】考查情态动词的用法。
“我不能走”, 可以判断她告诉我 “必须”呆在这儿。
（2009江苏He did not regret saying what he did but felt that he it differently.
A. could express B. would express
C. could have expressed D. must have expressed
【答案】C
【考点】虚拟语气。
【解析】could have expressed it differently.他要是用另一种方式来说该多好呀。
（2009福建But for the help of my English teacher, I
the first prize in the English Writing Competition.
A. would not win
B. would not have won
C. would win
D. would have won
【答案】B
【考点】虚拟语气。此处虚拟语气表示与过去事实相反, 句子谓语动词用would/should/could/might + have done结构, 故选B。（2008全国Ⅱ﹚Liza
well not want to go on the trip—she hates traveling.
A.will
B.can
C.must
D.may
（2008北京﹚John promised his doctor he not smoke, and he has never smoked ever since.
A.might
B.should
C.could
D.would
“可以, 能够”。
（2008陕西﹚—What sort of house do you want to have? Something big?
—Well, it
be big—that’s not important.
A.mustn’t
B.needn’t
C.can’t
D.won’t
“你想要什么样的房子？要大的吗？” “噢, 它不需要很大, 那不重要。”由...that’s not important.这一语境可知, 空格处应表示 “不需要”, 故须用needn’t。
（2008四川﹚Although this
sound like a simple task, great care is needed.
A.must
B.may
C.shall
D.should
（2008重庆﹚—I can’t find my purse anywhere.
—You
have lost it while shopping.
A.may
B.can
C.should
D.would
“可能……”。
（2008浙江﹚You
be hungry already— you had lunch only two hours ago!
A.wouldn’t
B.can’t
C.mustn’t
D.needn’t
’t指不可能；mustn’t表猜测时, 不能用于否定句；Needn’t指没有必要。
（2008福建﹚It is usually warm in my hometown in March, but it be rather cold sometimes.
A.must
B.can
C.should
D.would
【答案】B
【考点】本题考查情态动词的用法。
【解析】must必然, 一定；can可能；should应该；would（过去）将, 总会。本题提供的语境是 “有时可能会……”。
（2008辽宁﹚Peter
be really difficult at times even though he’s a nice person in general.
A.shall
B.should
C.can
D.must
（2008江苏﹚—I’m sorry.I
at you the other day.
—Forget it.I was a bit out of control myself.
A.shouldn’t shout
B.shouldn’t have shouted
C.mustn’t shout
D.mustn’t have shouted
“对不起, 几天前我本不应该朝你大喊大叫的。” “不要放在心上。我自己有点情绪失控。”shouldn’t have done sth.本不应该做某事(但已经做了)。
（2008山东﹚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
（2007全国Ⅰ﹚—How’s your tour around the North Lake? Is it beautiful?
—It
be, but it is now heavily polluted.
A.will
B.would
C.should
D.must
“意愿；客观必然性等”；would可表示 “意愿；过去常常（现
在也可能是那样的）”；should表示 “应该, 理应”；must表示 “必然；一定, 准是”。结合语境可知, 此处用should表示虚拟。句意为： “这本来应该是美丽的, 但是现在它被严重污染了。”
（2007北京﹚In crowded places like airports and railway stations, you
take care of your luggage.
A.can
B.may
C.must
D.will
（2007重庆﹚—What do you think we can do for our aged parents?
—You
do anything except to be with them and be yourself.
A.don’t have to
B.oughtn’t to
C.mustn’t
D.can’t
’t have to不必；oughtn’t to不应当；mustn’t禁止, 不允许；can’t不可能。答语句意为：“除了与父母呆在一起和做你自己以外, 你不必做任何事情。因此A项符合题意。
（2007浙江﹚—My cat’s really fat.
—You
have given her so much food.
A.wouldn’t
B.couldn’t
C.shouldn’t
D.mustn’t
’t have done sth本不应该做某事（暗含做了）。
（2007福建﹚My MP4 player isn’t in my bag.Where
I have put it?
A.can
B.must
C.should
D.would
“我的MP4不在我包里。我可能把它放哪儿了？”可知应选A。can have done过去可能做过而must have done “过去肯定做过”, 只能用于肯定陈述句；should have done本应该做过（而事实上没做）；would have done只能用于虚拟语气。
（2007江苏﹚—She looks very happy.She
have passed the exam.
—I guess so.It’s not difficult after all.
A.should
B.could
C.must
D.might
“happy”和下句中的 “not difficult after all”可以推知。
（2007山东﹚They
two free tickets to Canada, otherwise they’d never have been able to afford to go.
A.had got
B.got
C.have got
D.get
“otherwise they’d never have been able...”这一句用了与过去事实相反的虚拟语气；而 “他们弄到了两张去加拿大的免费票”却是事实, 故用一般过去时。
（2007上海﹚—Guess what？ I have got A for my term paper.
—Great!You
read widely and put a lot of work into it.
A.must
B.should
C.must have
D.should have
“have got A”可知是对过去发生事情的推测, 故用 “情态动词+have done”结构。must have done表示 “必定做过某事”, 符合题意。
（2007安徽﹚The teacher
have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose.
A.should
B.can
C.would
D.must
“一定……”。
（2007江西﹚—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
（2006全国Ⅰ﹚There’s no light on—they
be at home.
A.can’t
B.mustn’t
C.needn’t
D.shouldn’t
“肯定不……”, 故can’t符合要求。must表推测时不用于否定句, mustn’t表示
“禁止, 不许”；needn’t表示 “不需要”；shouldn’t表示 “不应当”, 故A项符合要求。
（2006全国Ⅰ﹚Eliza remembers everything exactly as if it
yesterday.
A.was happening
B.happens
C.has happened
D.happened
（2006全国Ⅱ﹚We hope that as many people as possible join us for the picnic tomorrow.
A.need
B.must
C.should
D.can
【答案】D
【考点】本题考查情态动词的用法。
【解析】句意为：我们希望尽可能多的人能参加我们明天的野餐。用can.表示可能性。
（2006北京﹚— What’s the name?
— Khulaifi.
I spell that for you?
A.Shall
B.Would
C.Can
D.Might
“我给你拼写一下好吗？”
（2006天津﹚We
have proved great adventurers, but we have done the greatest march ever made in the past ten years.
A.needn’tB.may not
C.shouldn’t
D.mustn’t
【答案】B
【考点】本题考查情态动词的用法。
【解析】句意为：我们或许还没有证明是伟大的探险者, 但我们已取得了在过去的10年里的最伟大的进展。故应用may not。
（2006浙江﹚— Could I have a word with you, mum?
— Oh dear, if you
.
A.canB.must
C.may
D.should
【答案】B
【考点】考查情态动词的用法。
【解析】句意为：妈妈, 我可以和你说句话吗？” “噢, 亲爱的, 如果你非要说的话。”must表示必须要做的事。
（2006福建﹚If 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
“she can’t sing”是一个事实, 是指在能力、技能等方面不能、不会。
（2006湖南﹚Some 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
“不得不”。
【考点】本题考查情态动词的基本用法。
【解析】will用于第二人称常用来表示命令、指示, 意为 “务必, 必须”；may表示 “可能, 也许”, 常用于请求许可；have to表示 “不得不”；should可用于表示主观看法、建议、劝说, 意为 “应当, 应该”。在此句中, 答话者表示同意对方的想法。答语句意为：你应该（打个电话）, 你好长时间没与他联系了。故D项符合情景要求。
（2006广东﹚— Must he come to sign this paper himself?
— Yes, he
.
A.need
B.must
C.may
D.will
’t。
（2006四川﹚—Is Jack on duty today?
—It
be him.It’s his turn tomorrow.
A.mustn’tB.won’t
C.can’t
D.needn’t
【答案】C
【考点】本题考查情态动词的用法。
【解析】can’t表示否定推测, must表示肯定推测。
（2006陕西﹚As you worked late yesterday, you
have come this morning.
A.mayn’t
B.can’t
C.mustn’t
D.needn’t
“没必要……”。
（2005全国Ⅰ﹚Tom, you
leave all your clothes on the floor like this!
A.wouldn’t
B.mustn’t
C.needn’t
D.may not
’t用以提示客气的请求；mustn’t表示禁止, 不允许；needn’t表示没必要；may not表示不可以。根据语境要求Tom不许把衣服放在地板上。
（2005全国Ⅲ﹚John, look at the time.
you play the piano at such a late hour?
A.Must
B.Can
C.May
D.Need
“难道非要”的意思。
（2005北京﹚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
“他一定是已经完成工作了；否则, 他就不会在海边玩得那么高兴。”可知是对过去发生事情的肯定推测。
（2005上海﹚There
be any difficulty about 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
’t表示 “禁止, 不允许”, 表示警告或命令; shan’t表示 “将不会”；shouldn’t表示据情况推测 “理应……”；needn’t表示 “不必……”。
（2005天津﹚I
have been more than six years old when the accident happened.
A. shouldn’t
B.couldn’t
C.mustn’t
D.needn’t
’t have done是对过去发生情况的否定推测, 其肯定形式同样是对过去发生情况的推测, 意为 “可能已……”。shouldn’t have done本来不应该……, 但实际已经……；needn’t have done本来不需要……, 但实际上已经……；must表示推测时, 只用在肯定句中。故选B项。
（2005辽宁﹚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
“他肯定没走远”, 此处是对过去的否定推测, 而且语气最强, 故用can’t have done。
（2005江苏﹚—Don’t you think it necessary that he
to Miami but to New York?
—I agree, but the problem is
he has refused to.
A.will not be sent;that
B.not be sent;that
C.should not be sent;what
D.should not send;what
本题考查虚拟语气中情态动词的用法。He paid for a seat, when he ______ have entered free.
A. could
B. would
C. must
D. need
【答案】A
【考点】本题考查虚拟语气中情态动词的用法。根据题干可看出此处句意为 “他本来可以免费入场”, 因此应用could have done。（2005湖北﹚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.
A.would
B.could
C.had to
D.ought to
“假如我们现在能够……”, could表示不存在的可能性。
（2005重庆﹚I was on the highway when this 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
“想必是, 一定是”。否定句、疑问句中对过去情况的推测, 要用can/could have done的形式。
（2005山东﹚He paid for a seat, however, he
have entered free.
A.could
B.would
C.must
D.need
据题干可看出此处句意为 “他本来可以免费入场”, 因此应用could have done。（2005江西﹚—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
“一定发生了某事”。由对话所提供的情景可知：汤姆从不迟到, 所以他 “一定有事”。因此D项正确。
（2005安徽﹚Helen
go on the trip with us, but she isn’t quite sure yet.
A.shall
B.must
C.may
D.can