高中英语情态动词+have done 真题直击知识点分析
高中英语情态动词+have done 真题直击
“情态动词＋have done”表示对过去情况的推测或估计，是历年高考的热点。现就这一语言现象作如下归纳：
1. should （ought to）have＋过去分词
表示过去应该做而（实际）没有做的事情，含有责备或遗憾的语气，意为“本应该……”；其否定形式为“should not／ought not to have ＋过去分词”，表示某种行为不该发生但却发生了。
Mr. White _____ at 8：30 for the meeting ，but he didn‘t’ show up.（04‘广西卷）
A. should have arrived
B. should arrive
C. should have had arrived
D. should be arriving
[解析]本题中的一个关键词but暗示了“Mr. White按道理理应到了，而他没有到”。故答案选[A].
2.needn't have＋过去分词
表示过去没有必要做某事，但实际上做了某事。
As you worked late yesterday，you_________ have come this morning. （06‘陕西卷）
A. mayn‘t
B. can’t
C. mustn‘t
D. needn’t
[解析] He needn't have come，表示“他本没有必要来（实际却来了）”，根据句意，答
案应选[D].
[注意] He didn't need to come yesterday，意为“他昨天没有必要来（实际也没来）”。
3.must have＋过去分词
用于肯定句，表示“过去一定做过某事”，表示一种很有把握的推测。
[注意] 对过去发生情况的否定推测常用can‘t／couldn’t have ＋过去分词。
I have lost one of my gloves. I ________ it somewhere . （05‘北京春季）
A. must drop
B. must have dropped
C. must be dropping
D. must have been dropped
[解析]本题应选B.本题的前一句说明一个结果，后一句则表示一个原因。
I _______have been more than six years old when the accident happened. （05‘天津卷）
A. shouldn't
B. couldn't
C. mustn't
D. needn't
[解析]从题意上分析，本题的前一句陈述一个理由，后一句则是由前一句得出的结论。故本题选[B] .
4.may／might have＋过去分词
表示对过去情况的一种不太有把握的可能性推测，表示“过去可能／大概已做了某事”；否定句表示“过去可能还没有做某事”。
We _______ have proved great adventurers，but we have done the greatest march ever made in the past ten years. （06‘天津卷）
A. needn‘t
B. may not
C. shouldn’t
D. mustn‘t
Key：[B]
5.can／could have＋过去分词
表示“过去本来可以做某事，但实际上没有做”；否定句表示“不可能已做了某事”；疑问句表示“可能／也许已做了某事吗？”。
—— I stayed at a hotel while in New York .
—— Oh，did you？You ＿＿＿＿with Barbara. （NMET‘98）A. could have stayed B. could stay
C. would stay
D. must have stayed Key：[A]
巩固性练习：从A、B、C、D中选择最佳答案。
1.——You didn‘t wait for Mr. Smith last night，did you？
——No，but we ______. He didn‘t return home at all.
A. couldn‘t have waited
B. needn’t have
C. didn‘t need to
D. should wait
2.Harry ______ have won the Physics competition easily yesterday，but he gave up.
A. could
B. might
C. should
D. must
3.——May I speak to your manager Mr. Smith at six o‘clock tonight ？“——“I‘m sorry，Mr. Smith to a conference before then.”
A. will have gone
B. had gone
C. would have gone
D. has gone
4.——Tom took away our teacher‘s cell phone without being permitted.—— Really？I can‘t imagine that he _______ have done such a thing.
A. must
B. may
C. can
D. should
5.—— Was it you that made the suggestion？
—— It have been. I can‘t remember.
A. need
B. must
C. should
D. may
6.The weather turned out to be fine yesterday. I_________ the trouble to carry my umbrella with me .
A. should have taken
B. could have taken
C. needn't have taken
D. mustn't have taken
7.He paid for a seat，when he ______ have entered free.
A. could
B. would
C. must
D. need
8.I didn‘t see her in the meeting room this morning. She at the meeting .
A. mustn‘t have spoken
B. mightn’t have spoken
C. can‘t have spoken
D. shouldn’t have spoken
9.—— Hi，is that Peter Brown？
——Sorry. You ______ the wrong number .
A. must dial
B. must have dialed
C. should dial
D. should have dialed
10.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
Keys for reference：1——5 CAADD 6——10 CACBB
语法知识—情态动词的知识点总复习附解析
一、选择题 1．It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him. A．may B．can C．must D．need 2．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true. A．must not B．may not C．needn’t D．will not 3．-Listen! A wolf is crying! -It _______ be a wolf, because a wolf never comes out at this time. A．mustn’t B．needn’t C．can’t D．don’t 4．I’ve bought a nice necklace for Jo’s birthday. She _____like it, but I’m not sure. A．can B．may be C．might D．must 5．---Mum, must I finish my homework today? ---No, you . Tomorrow is Sunday and you may have a rest today. A．shouldn’t B．mustn’t C．can’t D．don’t have to 6．You look quite tired. You'd better ________ a good rest. A．stop to have B．stop having C．to stop to have D．to stop having 7．—Tom, we’re going shopping at eight, right? —Yeah, but I ______ be a little late, so don’t wait for me. A．may B．should C．mustn’t 8．You should________ the teacher________being late for school. A．apology to, about B．apologize to, for C．apologies to, for D．apologize to, on 9．—Can you come to my party on Saturday afternoon? —Sorry, I can’t. I ________ meet my friends. A．can’t B．might have to C．needn’t 10．— I wonder if these are Jim's glasses. —They _____his. He doesn't wear glasses. A．might be B．could be C．can't be 11．—The book report is very important. You ________ write it carefully. —But I ________ hand it in now. A．must; must B．have to; must C．must; have to D．have to; have to 12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need 13．—________ I borrow the books from the library, Miss Yang? —Sorry, you________. These books are only for members of the English Club. A．Can; couldn’t B．Could; can’t C．Could; could n’t D．Can; needn’t
高中英语情态动词精讲与解析
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
情态动词+have done
情态动词+ have + done用法 1、“must+have+done”表示对过去事情的肯定推测，译成“_____________”，该结构只用于________。 1). It must have rained last night, for the ground is wet. 翻译： 2). He is playing on the playground, he must have finished his homework. 翻译： 2、“can't/couldn’t+ have+ done”表示对过去事情的否定推测，译成 “___________________”。 1). Mr. Smith can't have gone to Beijing, for I saw him in the library just now. 翻译： 2). Mary can't have stolen your money. She has gone home. 翻译： 3、“could+have+done” 有两种用法，一种表示猜测，“_____________________”，用于疑问句；另一种是虚拟语气，表示对过去事情的假设，意思是________________________。 1）What could have happened? 翻译： 2）He could have passed the exam, but he was too careless. 翻译： 4、“can+have+done”(较少使用)表示对过去行为的怀疑，用于疑问句，译成 “_____________”。 1). There is no light in the room. Can they have gone out? 翻译： 2). There is nowhere to find them. Where can they have gone? 翻译： 5、“may+have+done”表示对发生过的事情的推测，意思是“_______________”，用于肯定句中。 —What has happened to George? —I don't know. He may have got lost. 翻译： 6、“might+have+done”表示对过去事情的推测，might与may意思相同，但可能性更小。多用于虚拟语气结构中。
(完整版)必修三unit2语法讲解情态动词用法
必修三unit2语法讲解情态动词用法（二） 、ought to的用法 1. ought to应该”与should相比较ought to语气重,偏重责任、义务、 道德、法律”等方面，意为应该” ①We ought to stop polluti ng n ature.我们应该停止污染大自然。 2. ought to表示较大的可能性。 ①Mary ought to be here soon.玛丽应该很快就来了。 ［点津］用ought to表示推断时，语气较肯定，通常指的是一种合乎逻辑的 可能性（与should表推断时相似）,有时可译为很可能；准是”语气比must要弱）。 3. ought to的否定形式为ought not to或ought n't to,其一般疑问句形式是将ought置于主语前。 ①We ought not to start so late.我们不该这么晚动身。 4. 在反意疑问句中,常省掉to用ought n't或should n't。 ① He ought to take back what he has said, ought n' t/should n't he? 他应该收回他说的话，是吗？ 1 —1.写出下面句中黑体部分的意义 ① To keep fit, weought to lear n more about our body. _____ ① Youought not to do such a thing. _______ ① Itought to be a close game. _______ 1 —2.用ought完成句子 ①（尔不该责备他。You __________ （scold ）him. ①我明天该动身吗？一_______________ （_leave ［tomorrow? 是的，你应该。一Yes, you ought to ①我们现在应该走，是吗？We ought to go now, ______________ _? 二、have to, don't have to 与must n't 的用法 1. have to（口语中常用have got to）表示客观需要做的事情，意为必须；不 得不”有时态、人称和数的变化，其否定式和疑问式应由助动词do构成。 ① My brother was very ill, so I had to call the doctor in the middle of the ni ght. 我弟弟病了，我不得不半夜里把医生请来。
情态动词+have_done结构(过去推测结构)
情态动词+have_done结构 一、“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。 1. It must have rained last night, for the ground is wet. 昨晚一定下雨了，因为地面还是湿的。 2. You must have been mad to speak to the servant. 你和仆人说话，一定是发疯了。 二、“can't+have+done” 表示对过去事情的否定推测，译成“不可能做过某事”。 1. Mr. Smith can‘t have gone to Beijing, for I saw him in the library just now. 史密斯先生不可能去北京了，我刚才还在图书馆见过他。 2. Mary can't have stolen your money. She has gone home. 玛丽不可能偷你的钱，她回家去了。
三、“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？”。 1. There is no light in the room. Can they have gone out? 屋里没有灯，他们可能出去了吗？ 2. There is nowhere to find them. Where can they have gone? 到处找不到他们，他们可能到什么地方去呢？ 四、“could+have+done” 是虚拟语气，表示对过去事情的假设，译成“本来能够”做某事而没有做。 1. He could have passed the exam, but he was too careless. 本来他能够通过考试，但是他太粗心。 五、“may+have+done” 表示对过去发生的事情的推测，译成“可能已经”，用于肯定句中。——What has happened to George? ——I don't know. He may have got lost. ——乔治发生了什么事？ ——我不知道，他可能迷路了。
高中英语情态动词练习及答案
情态动词专项练习（一） 1. I __________ you, because I thought I must be wrong. A. dare not ask B. dare not to ask C. dare not asking D. dare to not ask 2. There __________ some flowers in the garden. A. were used to be B. used to be C. uses to be D. used to be having 3. ―__________ I take it out?‖―I′m sorry, you __________.‖ A. Could …couldn′t B. Might…might not C. Could…can D. May…can′t 4. You were stupid to climb the tree. You __________ hurt yourself. A. may B. might C. will D. might have 5. You __________ those letters. Why didn′t you ? A. should post B. should have posted C. must have posted D. ought to post. 6. All the lights are on, the Smiths __________ up. A. must get B. is getting C. must be getting D. would get 7. He __________ lead a horse to the water but he __________ not make it drink. A. will…can B. may…can C. may…dares D. dare…can 8. ―Need we do this job now?‖―Yes,__________.‖ A. you need B. you should C. you must D. you can 9. __________ to have lunch with us today? A. Do you likes B. Would you like C. Will you liked D. Have you liked 10. He said that you __________ watch TV all the evening if you wished. A. may B. must C. can D. might 11. –Is John coming by train? --He should, but he __________ not. He likes driving his car. A. must B. can C. need D. may 12. Peter __________ come with us tonight, but he isn′t very sure yet. A. must B. can C. may D. will 13. Michael __________ be a policeman, for he′s much too short. A. needn′t B. can′t C. shouldn′t D. won′t 14. I thought you __________ be hungry, so I have brought you some cakes. A. may B. might C. can D. could 15. I wonder how he __________ that to the teacher. A. dare to say B. dare saying C. not dare say D. dared say 16. Come on! We __________ hurry because there isn′t much time left. A. may B. must C. can D. need 17. Amy did best in the English test. She __________ hard last week. A. must have working B. should have worked C. should work D. must work 18. The fire spread through the hotel very quickly but everyone __________ get out. A. had to B. would C. could D. was able to 19. –--I stayed at a hotel while in New York. ---Oh, did you? You __________ with Barbara. A. could have stayed B. could stay C. would stay D. must have stayed 20. It′s nearly seven o′clock. Jack __________ be here at any moment. A. must B. need C. should D. can 专项练习（二） 1. Jean have kept his promise. I wonder why he changed his idea. A. must B. should C. need D. would
情态动词-have-done的用法
“情态动词+have done”的用法 “情态动词＋have done”表示对过去情况的推测或估计，是历年高考的热点。现就这一语言现象作如下归纳： 1．should (ought to) have＋过去分词 表示过去应该做而（实际）没有做的事情,含有责备或遗憾的语气，意为“本应该……”；其否定形式为“should not／ought not to have ＋过去分词”，表示某种行为不该发生但却发生了。 Mr. White _____ at 8:30 for the meeting , but he didn’t’ show up. （04’广西卷）A. should have arrived B. should arrive C. should have had arrived D. should be arriving [解析]本题中的一个关键词but暗示了“Mr. White按道理理应到了，而他没有到”。故答案选[A]。 2．needn’t have＋过去分词 表示过去没有必要做某事, 但实际上做了某事。 As you worked late yesterday, you_________ h ave come this morning. (06’陕西卷) A. mayn’t B. can’t C. mustn’t D. needn’t [解析] He needn't have come，表示“他本没有必要来（实际却来了）”，根据句意，答案应选[D]。 [注意] He didn't need to come yesterday，意为“他昨天没有必要来（实际也没来）”。3．must have＋过去分词 用于肯定句，表示“过去一定做过某事”，表示一种很有把握的推测。 [注意] 对过去发生情况的否定推测常用can’t／couldn’t have ＋过去分词。
情态动词语法讲解
Modal Verbs 情态动词有can (could), may (might), must (must), have to, shall (should), will (would), need (need), dare (dared), ought to 等。情态动词无人称和数的变化。它不能单独使用，必须跟其后的动词原形构成谓语。情态动词的具体用法如下： 一、can, could 1、表示能力。 a. Can you speak English? b. Can you finish this work tonight? c. Man cannot live without air. Note:
(1) can表示能力时，可用be able to 代替。 a. I’ll not be able to come this afternoon. (2) 当我们要表示“某件事情已经 成功”时，应用was/ were able to , 不能用could a. He saw well and he was able to swim to the river when the flood happened. b. He was able to go to the party yesterday evening and he enjoyed himself very much. 2、表示客观可能性
a. People who live near airports can have their hearing harmed. b. The boy can sometimes be very naughty. （表示某人或某物一时的情况，“有时会。。。”） c. The invention can be improve d. d. Even experts can make mistakes. e. He can’t be in Beijing now because I saw him a moment ago. f. He had a lot of work to do last night, so he couldn’t have gone to see a film. Note: 在肯定句中用can表示可能性时，其含义是理论上的可能性，不表示
高中英语情态动词详解及练习
高中英语情态动词详解 1. 表示请求和允许: can，could ，may，might. 过去式使语气更委婉，答语应用原形。 --- Could I use your computer tomorrow morning? --- Yes，you can.( 否定回答可用：No，I’m afraid not.) 1)can表示理论上的可能性，指某事或情况可能发生，但并不说明实际上真的发生. Children can be very tiring. 2)对现在事情的推测：情态动词+do 对过去事情的推测：情态动词+have done 对已完成事情的推测：情态动词+have done 3)反意问句： He may know the plan，doesn’t he? You must have studied English before，haven’t you? You can’ t have been caught in the rain last night，were you? 3．can & be able to 在肯定句中can表示有“能力”做，be able to表示通过想办法/努力等而能够做成了某一件事，相当于managed to do…或succeeded in doing sth. Birds can fly. The fire spread through the hotel very quickly but everyone was able to get out. 4. may / might as well do sth“还是…好”、“不妨” You might as well tell me the truth. 你还是把真相告诉我的好。 5. must和have to 1) must表示的是说话人的主观看法，而have to强调客观需要。 2）否定形式含义不同。mustn’t禁止，不许可，don’t have to不必 3) must 偏要（做令人不快的事）eg. Must you shout so loudly? 6. shall和should 1)表示说话人征求对方意见和向对方请示，用于第一、三人称。 When shall my father be able to leave hospital? Shall2) 用于第一、三人称2) 用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁以及说话人的决心。 You shall go with me (命令)/ You shall have the book when I finish it.33（允诺） He shall be punished （威胁）/ Nothing shall stop me from doing it. (决心)
情态动词have_done
情态动词+have+done是历年高考的重点和难点之一，现将其用法总结归纳如下： 一、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. 1. It must have rained last night, for the ground is wet. 昨晚一定下雨了，因为地面还是湿的 2. You must have been mad to speak to the servant.你和仆人说话,一定是发疯了 二、“can't+have+done”表示对过去事情的否定推测，译成“不可能做过某事”。 1. Mr. Smith can't have gone to Beijing, for I saw him in the library just now. 史密斯先生不可能去北京了，我刚才还在图书馆见过他。 2.Mary can't have stolen your money. She has gone home.玛丽不可能偷你的钱,她回家去了 三、“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？”。 1.There is no light in the room. Can they have gone out?屋里没有灯,他们可能出去了吗? 2. There is nowhere to find them. Where can they have gone? 到处找不到他们，他们可能到什么地方去呢？ 四、could+have+done’是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做. He could have passed the exam, but he was too careless.本来他能通过考试，但他太粗心 五、“may+have+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。—What has happened to George? —I don't know. He may have got lost. —乔治发生了什么事？ —我不知道，他可能迷路了。 六、“might+have+done”表示对过去事情的推测，might 与may意思相同，但可能性更小。多用于虚拟语气结构中。 1. He might have given you more help, even though he was busy. (MET90) 他或许会多给你一些帮助，即使他很忙。 2. She might have achieved greater progress, if you had given her more chances. 如果你多给她点机会，她可能已经取得更大的成绩。 七、“would+have+done”虚拟语气，表示对过去事情的假设，意思是“本来会做”。 1. I would have told you all about the boy's story, but you didn't ask me. 我本来会告诉你这个小男孩的故事，但是你没有问我。 2. Without your help, I wouldn't have achieved so much. 没有你的帮助，我是不会取得如此大的成绩。 八、“should+have+done”意思是“本来应该做某事，而实际没做。” “shouldn't+have+done”表示本来不应该做某事,而实际做了.含有指责对方或自责的含意 1. Tom, you are too lazy. The work should have been finished yesterday. 汤姆，你太懒惰了，这项工作本来应该昨天就做完的。 2. Look, Tom is crying. I shouldn't have been so harsh on him. 看，汤姆哭了，我本来不应该对他如此严厉。 九、“ought to+have+done”表示过去应该做而实际并没有做，译成“理应做……”，往往表示遗憾。与 “should+have+done”用法基本一样。 I ought to have gone home last Sunday. 我理应上星期日回家。 You ought not to have given him more help. 你不应该帮助他那么多。 十、“need+have+done”表示本来需要做某事而没有做。“needn't+have+done”则表示“本来不需要做某事而做了”。 I needn't have bought so much wine—only five people came. 我本来没有必要买这么多酒，只来了五个人。 He need have hurried to the station. In that case, be wouldn't have missed the train. 他本来需要快点去车站，那样的话，他就不会误了火车。 “情态动词＋have done”表示对过去情况的推测或估计，是历年高考的热点。 1．should (ought to) have＋过去分词 表示过去应该做而（实际）没有做的事情,含有责备或遗憾的语气，意为“本应该……”；其否定形式为“should not ／ought not to have＋过去分词”，表示某种行为不该发生但却发生了。 Mr. White _____ at 8:30 for the meeting , but he didn’t’ show up.（04’广西卷） A.should have arrived B.should arrive C.should have had arrived D.should be arriving [解析]本题中的一个关键词but暗示了“Mr. White按道理理应到了，而他没有到”.故答案选[A] 2．needn’t have＋过去分词表示过去没有必要做某事, 但实际上做了某事。 As you worked late yesterday, you_________ have come this morning.(06’陕西卷) A. mayn’t B. can’t C. mustn’t D. needn’t [解析] He needn't have come，表示“他本没有必要来（实际却来了）”，根据句意，答案应选[D]。 [注意] He didn't need to come yesterday，意为“他昨天没有必要来（实际也没来）”。 3．must have＋过去分词用于肯定句,表示‘过去一定做过某事’,表示一种很有把握的推测 [注意] 对过去发生情况的否定推测常用can’t／couldn’t have ＋过去分词。 I have lost one of my gloves. I ________ it somewhere .（05’北京春季） A. must drop B. must have dropped C. must be dropping D. must have been dropped [解析]本题应选B。本题的前一句说明一个结果，后一句则表示一个原因。 I ____have been more than six years old when the accident happened.(05’天津卷) A. shouldn't B. couldn't C. mustn't D. needn't [解析]从题意上分析，本题的前一句陈述一个理由，后一句则是由前一句得出的结论。故本题选[b] 。 4．may／might have＋过去分词表示对过去情况的一种不太有把握的可能性推测，表示“过去可能／大概已做了某事”；否定句表示“过去可能还没有做某事”。 We have proved great adventurers, but we have done the greatest march ever made in the past ten years. (06’天津卷) A. needn’t B. may not C. shouldn’t D. mustn’t Key:[b] 5．can／could have＋过去分词 表示“过去本来可以做某事，但实际上没有做”；否定句表示“不可能已做了某事”；疑问句表示“可能／也许已做了某事吗？”。 --- I stayed at a hotel while in New York . --- Oh, did you? You ＿＿＿＿with Barbara． A. could have stayed B. could stay C. would stay D. must have stayed Key: [A] 巩固性练习：从A、B、C、D中选择最佳答案。 1．---You didn’t wait for Mr. Smith last night, did you? ---No, but we ______. He didn’t return home at all. A. couldn’t have waited B. needn’t have C. didn’t need to D. should wait 2．Harry ______ have won the Physics competition easily yesterday, but he gave up. A. could B. might C. should D. must 3．---May I speak to your manager Mr. Smith at six o’clock tonight ?” 1
英语情态动词的用法大全附解析
英语情态动词的用法大全附解析 一、初中英语情态动词 1．—We've got everything ready for the picnic. —Do you mean I __________ bring anything with me? A. can't B. mustn't C. couldn't D. needn't 【答案】 D 【解析】【分析】句意：—我们已经为野餐准备好了一切。—你的意思是我不必带任何东西吗？A. can't 不能；B. mustn't 表示禁止，一定不要；C. couldn't不能，表示过去时态；D. needn't不必。结合句意，故选D。 【点评】本题考查情态动词的用法。 2．—How amazing this robot is! —Wow, it has video cameras in its eyes, so it “see” and interact with pe ople. A. may B. can C. must D. should 【答案】 B 【解析】【分析】句意：—这个机器人多么惊人啊！—哇，在它的眼睛里有摄像机，因此它能看见和人打交道。A. may 可以，可能；表示许可，B. can 能；表示能力，C. must 必须；D. should应该；根据it has video cameras in its eyes,可知是有能力看见，故选B。 【点评】考查情态动词辨析。熟记情态动词的含义和用法。 3．—Where is George? —He _______ be here just now. His coffee is still warm. A. need B. can't C. must D. shouldn't 【答案】 C 【解析】【分析】句意：——乔治在哪里？——他刚才一定在这里，他的咖啡还是热的。A. need需要； B. can't 不能，不可能（表示推测）； C. must 必须，一定（表示推测）； D. shouldn't不应该；根据His coffee is still warm.可知表示肯定推测一定在这儿；故答案为C。 【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．— Sorry, I forgot to take money with me. Maybe I can't buy the book you like. — Mum, you ______ worry about it. We can pay by Alipay （支付宝）. A. can't B. needn't C. mustn't D. shouldn't 【答案】 B 【解析】【分析】句意：——对不起，我忘记带钱了。也许我不能买你喜欢的书。——妈妈，你不用担心。我们可以用支付宝支付。A. can't不能，指不允许或否定推测；B. needn't 不需，指没必要；C. mustn't不能，表禁止；D. shouldn't不应该，表建议。根据句意语境，本句是说妈妈不需要担心，故答案为B。 【点评】考查情态动词。理解句意并掌握情态动词的意义和用法区别。
高一英语情态动词专题复习
情态动词 情态动词是高考考查的重点语法项目之一，2005年全国17套高考试题对此都有考查。下面就近几年来高考试题中出现的情态动词的考点进行归纳分析，以便同学们复习掌握。 一、情态动词表推测 1. 肯定的推测一般用must, should, may（might）或could（不用can），其中，must的语气最强，译为“肯定”、“准是”、“想必是”；should的语气次之，译为“很可能”、“应该”，指按常理推测；may（might），could的语气最弱，译为“也许”、“可能”。 ①Helen _______ go on the trip with us but she isn’t quite sure yet. （2005年安徽卷） A. shall B. must C. may D. can ②—I’ve taken someone else’s green sweater by mistake. —It ___ Harry’s. He always wears green. （2005年广东卷） A. has to be B. will be C. mustn’t be D. could be ③I have lost one of my gloves. I _______ it somewhere.（2005年北京春季卷） A. must drop B. must have dropped C. must be dropping D. must have been dropped ④If I ____ plan to do anything I wanted to ,I’d like to go to Tibet and travel through as much of it as possible. （2005年湖北卷） A. would B. could C. had to D. ought to 2. 否定推测分为两种情况： 1）语气不很肯定时，常用may not, might not或could not，译为“可能不”、“也许不”。 You might just as well tell the manufacturer that male customers ______ not like the design of the furniture. （2004年上海春季卷） A. must B. shall C. may D. need 2）否定语气较强时，则用can’t，译为“根本不可能”、“想必不会”，表示惊异、怀疑的感情色彩。 ①—Do you know where David is? I couldn’t find him anywhere. —Well. He ______ have gone far——his coat’s still here.（2005年湖北卷） A. shouldn’t B. mustn’t C. can’t D. wouldn’t ②— Isn’t that Ann’s husband over there? — No, it _______ be him I’m sure he doesn’t wear glasses. （2004年全国卷Ⅰ） A. can’t B. must not C. won’t D. may not 3. 疑问句中的推测，往往用can或could。 Mr. Bush is on time for everything. How ______ it be that he was late for the opening ceremony？（2001年上海春季卷） A. can B. should C. may D. must 4. 对已发生事情的肯定推测常用“must, may, might等+完成式”；否定推测常用“can, could, may, might等+完成式”。 ①I was on the highway when this car went past followed by a police car. They _______ at least 150 kilometers an hour.（2005年重庆卷） A. should have been doing B. must have been doing C. could have done D. would have done ②He _______ have completed his work; otherwise, he wouldn’t be enjoying himself by seaside. （2005年北京卷）