新课标高中英语情态动词的特殊用法
情态动词的特殊用法是历年高考的考查热点。下面我们以实例进行解析，帮助同学们更好地掌握该内容。
1. _____ fired, your health care and other benefits will not be immediately cut off.
A. Would you be
B. Should you be
C. Could you be
D. Might you be
解析：答案为B。Should you be fired = If you should be fired。英语中should是一个常用的情态动词，但它可用于条件状语从句中，表示语气较强的假设，意为“万一，竟然”。
2. —What’s the name?
—Khulaifi. _____ I spell that for you?
A. Shall
B. Would
C. Can
D. Might
解析：答案为A。Shall I/we . . . ? 是用来表示征求对方意见或建议的常用句型，它不表示将来。注意：shall的这一用法也适用于第三人称的疑问句中。例如：Shall he come to see you?（要不要他来看你?）3. John, look at the time. _____ you play the piano at such a late hour?
A. Must
B. Can
C. May
D. Need
解析：答案为A。此题考查must的特殊用法。这里must表示与说话人相反的愿望或语气不耐烦，意为“偏偏，偏要”。注意：近几年must表示“偏偏，偏要”这一用法已成为高考的一个热点。
4. —Must I turn off the gas after cooking?
—Of course. You can never be _____ careful with that.
A. enough
B. too
C. so
D. very
解析：答案为B。can/could not（never）. . . too是一个固定搭配，意为“无论……也不过分，越……越好”。
5. 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
解析：答案为A。考查can表示一时的可能性、偶尔发生的事情，意为“有时会”。这个考点在近几年高考中备受青睐。第二空表示“不得不”。
6. —When can I come for the photos? I need them tomorrow afternoon.
—They _____ be ready by 12:00.
A. can
B. should
C. might
D. need
解析：答案为B。should可用于肯定句中，表示说话人较为婉转的推测，并留有余地，具有“可能；该”之意。
7. When he was there, he _____ go to that coffee shop at the corner after work every day.
A. would
B. should
C. had better
D. might
解析：答案为A。would此处表示过去反复发生的动作或行为，意为“总是，习惯于”。
8. —Excuse me, but I want to use your computer to type a report. —You _____ have my computer if you don’t take care of it.
A. shan’t
B. might not
C. needn’t
D. shouldn’t
解析：答案为A。在表达“许诺、警告、意图、命令、决心”等，且主语为第二、第三人称时，须用情态动词shall。
9. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
A. might
B. need
C. should
D. would
解析：答案为C。should可用在表示惊奇、怀疑、不满等语气的名词性从句中，意为“竟然、竟会”。这一点也是近年高考的热点。10. Many people agree that _____ knowledge of English is a must in _____ international trade today.
A. a；不填
B. the；an
C. the；the
D.不填；the
解析：答案为A。句中的must为名词，意为“必需的物品、不可缺少的东西”。如果同学们对must作名词的用法掌握较好，则非常有助于对该题的理解与解答。
11. How _____ you say that you really understand the whole story if you have covered only part of the article?
A. can
B. must
C. need
D. may
解析：答案为A。can可用在疑问句、否定句中，表示说话者对那人所说的“只看了文章的一部分，就知道整个故事”感到怀疑和惊讶。
12. The fire spread through the hotel quickly but everyone _____ get out.
A. had to
B. would
C. was able to
D. could
解析：答案为C。was/were able to表示经过努力而成功地做成某事，相当于managed to do/succeeded in doing；而could只表示过去具备某种能力。
13. There’s no light on — they ____ be at home.
A. can’t
B. mustn’t
C. needn’t
D. shouldn’t
解析：答案为A。该题考查情态动词表推测。情态动词表推测时，must用于肯定句,can用于否定和疑问句。
14. Tom, you _____ leave all your clothes on the floor like this!
A. wouldn’t
B. mustn’t
C. needn’t
D. may not
解析：答案为B。此处mustn’t表示强烈的否定，意为“千万别，一定不要”。
15. _____ we never forget each other.
A. May
B. Can
C. Must
D. Should
解析：答案为A。此处may用于祈使句中，表示祝愿。整句意为“愿我们彼此永不相忘。”又如：May you return in safety. （愿你平安归来。）练习：
1. Mr. Bush is on time for everything. How _____ it be that he was late for opening ceremony?
A. can
B. should
C. may
D. must
2. Naturally, after I told her what to do, my daughter _____ go and do the opposite!
A. may
B. can
C. must
D. should
3. It has been announced that candidates _______ remain in their seats until all the papers have been collected.
A. can
B. will
C. may
D. shall
4. “The interest ___________ be divided into five parts, according to the agreement made by both sides,” declared the judge.
A. may
B. should
C. must
D. shall
5. You can’t imagine that a top student ______ have failed in the college entrance examination.
A. might
B. need
C. should
D. would
6. Football, as is known to the world, _______ be exciting and inviting.
A. should
B. might
C. can
D. will
7. —_____ he open the door?
—Yes, please.
A. Shall
B. Will
C. Can
D. Would
8. The World Wide Web is sometimes jokingly called the World Wide Wait because it _____ be very slow.
A. should
B. must
C. will
D. can
9. —Isn’t that Ann’s husband over there?
—No, it ______ be him-I’m sure he doesn’t wear glasses.
A. can’t
B. must not
C. won’t
D. may not
10. It’s nearly seven o’clock. Jack _____ be here at any moment.
A. must
B. need
C. should
D. can
11. What should we do if it _____ tomorrow?
A. should snow
B. would snow
C. snow
D. will snow
12. You _____ use my bike on condition that you give it to me before I leave here.
A. should
B. must
C. ought to
D. shall
（Keys: 1. A 2. C 3. D 4. D 5. C 6. C 7. A 8. D 9. A 10.
C 11. A 12. D）
情态动词＂can“的用法 情态动词不能独立作谓语，不以人称和数量的变化而变化，后接动词原形，也就是说情态动词和动词原形一起构成谓语。我们常见的情态动词有：can，must，would等。接下来，我们就来学习一下情态动词"can"的用法。 ①表示能力，"can"译为"能；会" 例句：I can speak English. 译：我会说英语。 She can dance. 译：她会跳舞。 ②表示可能性，"can"译为"可能；会" 例句：Can you sing 译：你会唱歌吗 Can you swim 译：你会游泳吗 ③"can"用在肯定句中：主语＋can＋动词原形 例句：I can play the guitar. 译：我会弹吉他。 I can join the music club. 译：我可以加入音乐俱乐部。 ④"can"用在一般疑问句中：Can＋主语＋动词原形 肯定回答：Yes，主语＋can 否定回答：No，主语＋can't 例句：Can he play chess 译：他会下国际象棋吗 Yes,he can. 译：是的，他会。 NO,he can't. 译：不，她不会。 ⑤"can"用在否定句中：主语＋can't＋动词原形（can't 是 can not 的缩写） 例句：She can't play the piano well. 译：她弹不好钢琴。 I can't sing. 译：我不会唱歌。 ⑥"can"用在特殊疑问句中：特殊疑问词＋can＋主语＋动词原形 例句：What can you see in the room 译：在房间里你能看见什么 ⑦当特殊疑问词是句子的主语时：特殊疑问词＋can＋动词原形 例句：Who can answer my question 译：谁能回答我的问题 注意事项 "can"后一定要接动词原形。 "can" 不以人称和数量的变化而变化。
初中英语情态动词的基本用法讲解 1. can （could） 1）表示能力，could 主要指过去时间。 Two eyes can see more than one. 两只眼比一只眼看得清。 Could the girl read before she went to school? 这女孩上学前能识字吗？ 2）表示可能（理论上或是逻辑判断上）。 The temperature can fall to —60 °C , that is 60 °C below freezing. 气温可降至一60 C，也就是零下60 C。 He can't （couldn't） have enough money for a new car. 他不可能有足够的钱买新车。 You mustn't smoke while you're walking around in the wood. You could start a fire. 在林子里走时勿吸烟，那样可能会引起火灾。 3）表示允许。 Can I have a look at your new pen? 我可以看一看你的新钢笔吗？ He asked whether he could take the book out of the reading-room. 他问他可不可以把书带出阅览室。 4）表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。 Where can （could） they have gone to? 他们会去哪儿了呢？ He can't （couldn't） be over sixty. 他不可能超过六十岁。 How can you be so careless? 你怎么这么粗心？ 5）比较委婉客气地提出问题或陈述看法。 Can （Could） you lend me a hand? 帮我一把好吗？ I' m afraid we couldn 't give you an answer today. 恐怕我们今天不能给你答复。 2. may （might） 1）表允许，might 可以指过去时间，也可指现在时间，语气更委婉。 You may take whatever you like. 你喜欢什么就拿什么。 He told me that I might smoke in the room. 他告诉我可以在房间里抽烟。 May （Might） I ask for a photo of your baby? 我可以要一张你宝宝的照片吗？ 在回答以may引起的问句时，多避免用这个词，而用其它方式，如Yes, please. / Certainly. / Please don' t ./ You' d better not. / No, you mustn ' t.等，以免显得太严峻或不客气。 2）表可能（事实上）。可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. 他可能在家。 She may not know about it. 她可能不知道这件事。 He was afraid they might not agree with him. 他担心他们可能不同意他的意见。 They might be having a meeting, but I ' m not sure. 他们有可能在开会，不过我不肯定。 3. must 1）表示义务。意为“必须” （主观意志）。 We must do everything step by step. 我们一切都必须循序渐进地做。 You mustn' t talk to her like that. 你不可能那样对她说话。 --Must we hand in our exercise —books now? 我们现在就要交练习本吗？ --No, you needn' t. / No, you don' t have to. 不必。（这种情况下，一般不用mustn' t）2）表示揣测。意为“想必、准是、一定”等，只用于肯定句。
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
情态动词表推测用法总结及专项练习 1.can / could用于表推测的用法 (1) 从使用句型上看，can 通常只用于否定句或疑问句，一般不用于肯定句，而could 可用于肯定句、否定句和疑问句。两者没有时间上的差别，只是could 比can 更委婉，更不确定。如：It can’t [couldn’t] be true. 那不可能是真的。 What can [could] they be doing? 他们会在干什么呢? We could go there this summer. 今年夏天我们可能要去那儿。 注：can 有时也用于肯定句中表示推测，主要用于表示理论上的可能性(即从理论上看是可能的，但实际未必会发生)，或表示“有时”之意。如： Even experienced teachers can make mistakes. 即使是有经验的教师也可能出错。 She can be very unpleasant. 她有时很令人讨厌。 (2) 从时间关系看，对现在或将来情况作推测，后接动词原形；对正在进行的情况作推测，后接be doing 结构；对过去情况作推测，后接动词完成式。如： He could have gone home. 他可能已经回家了。 He can’t [couldn’t] have understood. 他不可能理解了。
Why does he know this? Can [Could] someone have told him about it? 他怎么知道? 会是哪个人告诉他了吗? (3) “could+完成式”除表示对过去的推测外，还有以下重要用法： ①表示过去没有实现的可能性，常译为“本来可以”。如： I could have lent you the money．Why didn’t you ask me? 我本来可以借这笔钱给你的。你为什么不向我提出? ②用来委婉地责备某人过去应该做某事而没有去做，常译为“本来应该”。如： You could have helped him. 你本来应该帮助他的。 ③表示“差点儿就要”。如： I could have died laughing. 我差点儿笑死了。 2. may / might用于表推测的用法 表示推测，两者都可用，只是might 比may 语气更不确定，表示的可能性更小。 (1) 在句型使用方面：两者均可用于肯定句和否定句，但用于疑问句时，may通常不用于句首，但可用于疑问句的句中（如特殊疑问句等），而might尽管可以用于疑问句的句首，但不算普通，通常会改用其他句式（如用could等）。如： He may [might] know the answer. 他可能知道答案。
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。
英语情态动词用法总结(完整) 一、单项选择情态动词 1．--- Difficulties always go with me! --- Cheer up! If God closes door in front of you, there be a window opened for you. A．must B．would C．could D．can 【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. would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can't。 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。 2．Paul did a great job in the speech contest. He many times last week. A．need have practised B．might practise C．must have practised D．could practise 【答案】C 【解析】 【详解】 考查情态动词。句意：保罗在演讲比赛中表现得很好。他上星期一定练习了很多次。must have done是对过去发生的动作最有把握的猜测，意思是“一定”。故C选项正确。 3．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
情态动词的一些特殊用法 情态动词本身有语义, 表示说话人的语气或情态, 但语义不完整, 不能单独作谓语动词, 一般只能与动词原形一起构成谓语动词。现就考试中出现频率高的情态动词及其用法作些说明: 一、must 与must有关的题型经常与其后面应跟什么时态有关. 在有must的句中, 常表示说话人在进行依据较充分的推测。至于用哪些时态, 则有两个参考标准: 句中的时间状语和句间的关系。 Y ou look so sleepy. Y ou must have sat up late last night. 你看上去这么困倦, 昨晚一定睡得很晚。 I mailed that letter a week ago. He must have received it. 我一周前就发出了那封信, 想必他一定收到了。 must + have + -ed分词: 用于肯定句, 表示对过去情况的推测, 意为“肯定, 一定”。 Y ou had only a little egg at breakfast today. Y ou must be hungry now. Must 加动词原形的进行式, 表示对现在发生动作和事物的猜测, 有“一定, 准是”的意思。 其它情态动词如may (might), should (ought to), can(could), need的用法分别如下: 二、may(might) may(might) + have + -ed 分词: 用于肯定句和其它否定句, 表示对已发生事情的不肯定的推测, 意为“可能, 大概”, 其中might较may语气更弱, 把握更小。 They may have derived inspiration from these words. 他们可能从这些话语中获得了灵感。 Our manager may (might) have gone to Guangzhuo attending Spring Fair there last week. 我们经理可能已于上周去广州参加春交会了。
情态动词（Modal [‘modl:] verbs） 不能独立作谓语，只能和行为动词一起构成谓语。情态动词用在行为动词前，表示说话人对这一动作或状态的看法或主观设想。 情态动词主要有下列：can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would) must not. 情态动词的特点： 情态动词无人称和数的变化，情态动词后面跟的动词须用原形，否定式构成是在情态动词后面加"not"。 个别情态动词有现在式和过去式两种形式，过去式用来表达更加客气，委婉的语气，时态性不强，可用于过去，现在或将来。 情态动词属非及物动词，故没有被动语态。
一般疑问句General ['d?enr?l] Questions 1.基本结构： ①谓语动词是助动词（do, have和be）、情态动词时，只要直接把这些词置于句首，句末改成问号。★be + 主语+ 其它部分 ★情态动词+ 主语+ 动词原形+ 其它部分 ★肯定回答用“Yes，主语+be\情态动词.”，否定回答用“No，主语+be\情态动词+not.”。
②谓语动词是行为动词时，必须在句首加上助动词Do、Does、Did，句子中谓语动词必须用原形。 ★助动词+ 主语+ 动词原形+ 其它 Do your parents like English Yes，they do. / No，they don’t ③注意：在把肯定句改成否定句或一般疑问句的时候, already要改成yet，some、something、somebody等分别改成any、anything、anybody等。在改成否定句的时候注意把too改成either, both改成neither, all改成none等.把第一人称I、we改成第二人称you。 Are you from Japan﹖Yes, I am．/ No, I'm not． Is her sister doing her homework now﹖Yes, she is．/ No, she isn't． Does he work in a bank﹖Yes, he does．/ No, he doesn't． 2.将陈述句变为一般疑问句 ①含be动词或情态动词的句子(秘诀：一调二改三问号) 一调：即把句中的be或情态动词调到主语前； 二改：改换主语称谓，即将句中的主语I\my \mines\we\our\ours等第一人称分别改为相应的第二人称you\your\ yours等； 三问号：句末的句号改为问号。如： I am an English teacher. →Are you an English teacher We can speak English fluently. →Can you speak English fluently ②含行为动词（或称为实义动词）的句子(秘诀：一加二改三问号) 一加：即在句首加助动词Do或Does； 二改：①把谓语动词改为原形；②、改换主语称谓（同第一组）； 三问号：句末的句号改为问号。 We read English every morning. → Do you read English every morning Tom’s father listens to English on the radio every evening. → Does Tom’s father listen to English on the radio every evening 特殊疑问句The special interrogative sentence 以疑问词开头，对句中某一成分提问的句子叫特殊疑问句。 疑问代词：what（什么）who（谁，作主语） which（哪个，在一定范围内选择） whose（谁的，指附属关系）whom（谁，作宾语） ②疑问副词：when（何时，询问时间）where（何地，询问地点） why（为什么，询问原因） how（如何，询问手段，方式，工具以及程度） 2.语序：
高中英语情态动词用法归纳与练习 A: can / could = be able to 1 表示能力两种时态can (could)，其他时态要用be able to的形式 He can speak French. Was/were able to 可以表示成功做成某事的含义* managed to do / succeeded i n doing With our help, he was able to build the house. 2 表示请求或许可Could 比Can 更加客气* may Can I go now? Yes, you can. 3 表示推测或可能性，常用于否定句和疑问句 Can he be at school? Today is Sunday. He can't be at school. Can’t couldn’t/ Can ? Could? have done There is no light in the room. Can she have gone to bed? She can’t have gone to school----- it’s Sunda y. Could have done 可用在肯定句中表示过去存在的可能性* may have done She could have gone out with some friends yesterday. Could have done 可以表示虚拟语气 某事可能发生（并没有发生） It was silly to throw the TV out of the window. It could have hit somebody. 批评某人没有完成某事(本可以做某事) You are late again. You could have got up earlier. 4 can 表示客观上的可能性* Anybody can make mistakes. B: may and might 1 表示请求和允许类似用法can could(更加口语化) May I watch TV now? Yes, you may. 2 表示可能性; 猜测might比may更加不确定may/might have done 对过去的揣测* He may be busy these days. May not 可能不；不可能；一定不可 3 表示祝愿Wish you success! May you succeed!* C: must and have to 1 表示必须；一定要可以用have to 代替 must 现在；将来的必须而且是主观看法* have to 有多种时态而且强调客观情况 I really must stop smoking now. I had to leave early because I wasn’t feeling well. Must I come here?
英语中情态动词的用法梳理 情态动词是英语中特有的语法现象，学生在学习英语的时候，对情态动词的理解和使用或多或少会有一些不足。这里为大家做一些总结，以帮助大家更好地理解和使用。 首先看一下什么是情态动词。 确切的说，我们平时所提及的”情态动词“，完整的称呼应该叫做”情态助动词“，英语称为Modal Auxiliaries，在这里大家可以顺便回顾一下另外的助动词，语法上称之为基本助动词，包括do、have、be等三个，这个大家都已经很熟悉了，就不再多提了。 1、情态动词有以下9个： will、can、may、must、shall、need、dare、used to、ought to等。 大家常见常用的应该是will、can、may、must、shall等几个，另外几个可能使用相对较少，但都是英语中经常出现的。 2、情态动词也有时态的变化，以下是一些情态动词的过去时： will---would may---might
shall---should can---could dare---dared must和ought to没有过去时，need作为情态动词也没有过去时，当然，used to也没有现在时。 情态动词的时态和时间概念关联不大，更主要的作用是表示意愿或推测。比如：He may live there several years ago. 他几年前可能住在那儿。（可能性相对might较高） He might live there several years ago. 他几年前可能住在那儿。（可能性相对may较低） 3、情态动词的否定式 will not---won't cannot---can't
英语情态动词用法详解 一、单项选择情态动词 1．Look! There are so many mistakes in your composition. You ________ have fixed full attention on it. A．can B．should C．need D．might 【答案】B 【解析】 【详解】 考查情态动词。句意：看！你的作文里有那么多的错误。你本应该把所有的注意力都集中在它上面的。表示“本应该做但实际上没有做”应该用should have done结构，can have done 表示可能；need表示需要；might have done表示可能做过某事；故选B。 2．---Hi, Johnson, any idea where Susan is? ---It is class time, so she __________ in the classroom now. A．can be B．must have been C．might have been D．should be 【答案】D 【解析】 考查情态动词的用法。A. can be可能，可以是；B. must have been一定（对过去事实肯定的推测）；C. might have been可能（对过去事实肯定的推测）；D. should be应该是。句意：—知道苏珊在哪里吗？—现在是上课时间，她应该在教室里。故答案选D。 3．The room is so clean. He ________ have cleaned it yesterday evening. A．will B．need C．can D．must 【答案】D 【解析】 【详解】 考查情态动词表推测。句意：房间如此干净，他一定是昨天晚上打扫过了。must have done 表示对过去发生的事情有把握的猜测，意思是“一定（做过）”，故D项正确。 4．— Excuse me, do you mind if I open the window? — Well, if you __________. I can put on more clothes. A．can B．may C．must D．shall 【答案】C 【解析】
情态动词can的基本用法： 情态动词can有一定的词义，但不能独立存在，它必须与动词原形一起构成谓语。情态动词can没有人称和数的变化。其具体用法如下： 1. 表示"能、会",指脑力或体力方面的"能力"。例如： I can speak En glish. 我会讲英语。 Jim can swim but I can't. 吉姆会游泳，但我不会。 2. 表示"可能",常用于否定句或疑问句中，指某种可能性，此时can 't译为“不可能”。例如： Han Mei ca n't be in the classroom. 韩梅不可能在教室里。 Can he come here today, please? 请问他今天能到这里来吗？ 3. 表示"可以",常用于口语中，指许可或请求做某事，可以代替 may。例如: Can I have a cup of tea, please? 请问我可以喝一杯茶吗？ You can go out. 你可以出去了。 补充：can的过去式could，意为“能、会”，表示过去的能力 女口： He could write poems when he was 10. 他十岁时就会写诗。 could在疑问句中，表示委婉的语气，此时could没有过去式的意思。 如:Could you do me a favour? 你能帮我个忙吗？一 Could I use your pen?我能用一下你的钢笔吗？一Yes, you can.可以。（注意回答） 情态动词can的基本句型:
1. 肯定句型为：主语+can+动词原形+其它。例如： They can play basketball. 他们能打篮球。 She can dance.她会跳舞。 You can go to watch TV. 你可以去看电视了。 2. ........................... 否定句型为：主语+can not（can't/cannot）+ 动词原形+其它。表示"某人不能（不会。不可能）做其中can't是can not的缩略式，英国多写成cannot。例如： You cann ot pass the ball like this. 你不能像这样传球。 I ca n't ride a motorbike. 我不会骑摩托车。 3. 疑问句句型分为：一般疑问句句型和特殊疑问句句型两种类型。 ⑴一般疑问句句型为:Can+主语+动词原形+其它。表示"某人会（能。可以）做吗?",用于口语时，常表示请求或许可。其肯定答语用""Yes,主语+can."作答; 否定答语用"No,主语+can't."作答。注意答语中做主语的人称代词,应根据问句中的主语作相应的变化。其变化规则为：第一人称问，则第二人称答；第二人称问，则第一人称答;第三人称问，第三人称答。例如： ①-Can you sing an En glish song for us? 你可以为我们大家唱一首英语歌吗？
情态动词专项讲解 1. China is developing its high-speed train technology fast, so it _____be good enough to catch up with the best. A. may B. might C. must D. should 2. Then some other interesting reasons appear, such as “It's so smoggy that I ______find my way to office." A. mustn’t B. won’t C. can’t D. shouldn’t 3. "The world is big, and I want to see it," wrote a teacher in her resignation letter. _____ you quit your job to travel the world A. Must B. Might C. Should D. Would 【答案揭晓】CCD 一、情态动词的定义 情态动词是一种本身有一定的词义，但要与动词原形或其被动语态一起使用，给 谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法，认为其可 能.应该或必要等。情态动词后面加动词原形。 1. No driving electric motorbikes in some areas is a rule that we shall obey in Fuzhou.
必须.一定（法律.法规等）动 词原形 2. Women who are exposed to second-hand smoke during their pregnancy can be at risk of abortion.能，会，可以(表示有能力或机会) 动词原形 二、常考情态动词的关键用法 (一) can 1. －Jim，it is time you went to bed．You need to get up early tomorrow. －It’s not f air，Mary can stay up till ten hut I have to go to bed at eight. 可以(表示允许) it were not for the fact that she can't sing，I would invite her to the party. 能，会，可以(表示有能力) 3. Luckily, iron can be reworked and mistakes don't have to be thrown away 能够，可以(表示某事物的特点) can be really difficult to get along with at times even though he’s a
英语情态动词的常用用法归纳 1概念 在英语的动词当中，凡是用来刻画人的情感动作的动词，我们称之为情态动词，情态动词有着具体的汉语意思。但却不能独立作谓语和后面的行为动词一起构成和成谓语。区别于其他的行为动词，情态动词没有人称和数的变化，有少数的时态现象——一般时、过去时、将来时等。 2应用 一.Can 1、can表示说话人的能力，常译作能、能够、会。 eg：I can speak English very well. Can you swim across the river? Yes, I can/ No, I can’t. 2、can可以用来表示说话人的客观可能性，通常应用于否定疑问句式中。 eg：People can’t live without water. Can you finish the jobs in three hours? Can this be true. 3、在口语里，can表示允诺、允许、可以。等于may，但是may的语气
重于can。 eg：Can I come in? = May I come in? Can I use your bike? = May I use your bike ? *表示允许可以may mightcould can 4、在“过去时”的语境里，通常用could 表示它的过去式，用be able to 短语（was/were） 而could通常用来在一般现在时的语境里表示委婉语气 eg：Could（can）you show me the way to the supermarket? 5、can表示猜测 （1）对现在状态的一种猜测，只能用在否定疑问句中。 eg：Zhang can’t be ill really? This can’t be done by him. （2）对现在动作的猜测 eg: The boy can’t be telling lies. Mary works so hard, now, she can’t be sleeping.
一、情态动词无人称和数的变化，不能单独做谓语，只能和行为动词或状态动词构成谓语 二、情态动词分为：情态助动词：can(could)、may(might)、must、have to (had to )、ought to 、 shall(should)、will(would) 12个 半情态助动词：dare、need、used to、had better、would better(5个) 三、情态助动词 1.can and could 1)ability：be able to do /manage to do/succeed in doing sth. eg.The army can defeat their enemy. eg.The army is able to defeat their enemy. eg.The army succeed in defeating their enemy. 2)permission:eg.Can I smoke here? eg.You can’t smoke here. 3)possibility:用在否定句、疑问句、感叹句中- eg.This can’t be done by him. 当被用在肯定句中时，表达的是理论上的可能性，不涉及是否真的会发生 eg.even expert drives can make mistakes. 要表达现在或者将来的可能性，用may /might或could. eg.I may leave for Beijing next month. 但在特殊疑问句中，或与副词hardly、only等连用的陈述句中表达可能 性只用can/could Eg.where can the noise be coming from? eg.It can hardly be the postman,he comes only in the morning. 4)有时会：the road can be blocked. 5)could 表示轻微的怀疑或委婉的看法 I’m sorry I couldn’t lend you the book now. His story could be true,but I hardly think it is. 6)could 表示委婉的请求，主要用于疑问句，不用于肯定句 Could you lend me some money? Yes,I can /No,I am afraid not. 7)could 的常用结构：could+动词+比较级“非常，再.....不过了” It couldn’t be better. Couldn’t +过去分词+比较级“非常，再.....不过了” They couldn’t have tried harder to make me eel welcome. Can’t..too..=can never too“无论怎样...也不为过,越...越好” I can’t thank you too much.I owe my progress to you. Can’t (help/choose) but do/can but +动词原形“不得不，只好” We can but agree with him. Can’t help doing 忍不住，不得不 I can’t help laughing Can’t be (it) 控制不住，没有办法 It can’t be helped Can’t....without 没有...就不能 One can’t succeed without perseverance.
情态动词的特殊用法 1. _____ fired, your health care and other benefits will not be immediately cut off. A. Would you be B. Should you be C. Could you be D. Might you be 2. —What’s the name? —Khulaifi. _____ I spell that for you? A. Shall B. Would C. Can D. Might 3. John, look at the time. _____ you play the piano at such a late hour? A. Must B. Can C. May D. Need 4. —Must I turn off the gas after cooking? —Of course. You can never be _____ careful with that. A. enough B. too C. so D. very 5. 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 6. —When can I come for the photos? I need them tomorrow afternoon. —They _____ be ready by 12:00. A. can B. should C. might D. need 7. When he was there, he ___ go to that coffee shop at the corner after work every day.A. would B. should C. had better D. might 8. —Excuse me, but I want to use your computer to type a report. —You _____ have my computer if you don’t take care of it. A. shan’t B. might not C. needn’t D. shouldn’t 9. You can’t imagine that a well-behaved gentleman _____ be so rude to a lady. A. might B. need C. should D. would 10. Many people agree that _____ knowledge of English is a must in _____ international trade today. A. a；不填 B. the；an C. the；the D.不填；the 11. How _____ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may 12. The fire spread through the hotel quickly but everyone _____ get out. A. had to B. would C. was able to D. could 13. There’s no light on — they ____ be at home. A. can’t B. mustn’t C. needn’t D. shouldn’t 14. Tom, you _____ leave all your clothes on the floor like this! A. wouldn’t B. mustn’t C. needn’t D. may not 15. _____ we never forget each other. A. May B. Can C. Must D. Should 练习： 1. Mr. Bush is on time for everything. How ____ it be that he was late for opening ceremony?A. can B. should C. may D. must 2. Naturally, after I told her what to do, my daughter _____ go and do the opposite! A. may B. can C. must D. should 3. It has been announced that candidates _______ remain in their seats until all the papers have been collected. A. can B. will C. may D. shall 4. “The interest ___________ be divided into five parts, according to the agreement made by both sides,” declared the judge. A. may B. should C. must D. shall 5. You can’t imagine that a top student ______ have failed in the college entrance examination. A. might B. need C. should D. would 6. Football, as is known to the world, _______ be exciting and inviting. A. should B. might C. can D. will 7. —_____ he open the door? —Yes, please. A. Shall B. Will C. Can D. Would 8. The World Wide Web is sometimes jokingly called the World Wide Wait because it _____ be very slow. A. should B. must C. will D. can 9. —Isn’t that Ann’s husband over there? —No, it ______ be him-I’m sure he doesn’t wear glasses. A. can’t B. must not C. won’t D. may not 10. It’s nearly seven o’clock. Jack _____ be here at any moment. A. must B. need C. should D. can 11. What should we do if it _____ tomorrow? A. should snow B. would snow C. snow D. will snow 12. You _____ use my bike on condition that you give it to me before I leave here. A. should B. must C. ought to D. shall 常见的通常只能用主动语态的场合 1. 当谓语动词是不及物动词，又不能构成动词短语接宾语时。 2. 当宾语是反身代词时。如I hurt myself. 3. 当宾语是相互代词时。如We should learn from each other. 4. 当宾语是不定式、动名词时。如I want to watch TV. / They enjoy playing basketball. 5. 当谓语动词是拥有、容纳类动词（have, hold）时。如I have a big family. / The room can hold 40 people. 6. 当谓语动词是开始、结束类动词（start, begin, stop, end, finish）时。如The first class will start at 8:00. / The film ended when I got there. 7. 当谓语动词是开张、关门类动词（open, close）时。如The shop usually opens before 8:30. 8. 当谓语动词是花费类动词（take, cost）时。如The new dress cost her 90 dollars. 9. 当谓语动词是发生类动词（happen, take place）时。如Something strange happened an hour ago. 10. 当谓语动词是保持类动词（keep）时。如The hall keeps quiet now. 11. 当谓语动词是运动、变化类动词（leave, move, change）时。如The train is leaving. / Things have changed a lot. / The car didn’t move. 12. 当谓语动词是变得、成为类动词（become, get, turn）时。如The teacher became angry. / The weather is getting warmer and warmer. 13. 当谓语动词是…起来类动词时。具体细分如下： ○1半系动词（look, sound, feel, smell, taste）。如The building looks very tall. / That piece of music sounds nice. / The dish smells delicious. ○2其它类动词（eat, drink, cook, drive, work, read, write, sell, show, play, clean, wear, wash, burn等）。如This kind of fruit eats crisp (脆). / Orange drinks sweet. / The car drives smoothly. / This text reads easily. / The pen writes well. / The clothes wash hard. 14. 当宾语前有与主语一致的物主代词，且宾语名词为身体的一部分时。如He cut his finger. 15. 当谓语动词是由have / take构成的词组（have a cold, have/take a rest, have/take a walk）时。如I had a cold yesterday. 16. 当谓语动词是need, 且主语是物，后接动名词时。如My bike needs repairing. 17. 当不定式作定语时。如I have a lot of housework to do. / He wants a house to live in. 18. 当不定式作表语形容词的状语时。这里所说的表语形容词即作表语的形容词；所说的状语即修饰该形容词的程度状语。