初中情态动词教案
龙文教育一对一个性化辅导教案
情态动词
一、课前热身：
二、内容讲解：
知识点一、【情态动词】又叫情态助动词。它们具有以下特点：
⑴它们必须与其他动词连用，即：情态动词＋动词原形
表示说话人对所述动作的看法，如需要、可能、意愿或怀疑等。
⑵绝大多数情态动词没有人称和数的变化，即第三人称单数不加-s
（以be和have 开头的情态动词短语除外）。
⑶在意义上，情态动词具有“多义性”。
例：can既可表示能力，又可表示可能、允许等意义。
知识点二、【情态动词的基本用法】
1. can的基本用法：
⑴表示体力或智力上的能力，即“能够，会”，可与be able to转换。
例：He can speak English. = He is able to speak English.
—Can you play basketball?
— No, I can’t.
如果表示将来具备的能力，要用will be able to。
例：If I have a good sleep, I will be able to do the problem.
⑵表示许可，主要用于口语，书面语一般用may。
例：—Can we go home now, please?
— No, you can’t.
You can only smoke in this room.
You can’t keep the library books for more than a month.
⑶表示“可能”，与may同义，但一般用在疑问句中。
例：What can he possibly want?
在否定句中，否定形式can’t表示推测“不大可能”。
例：Anybody can make mistakes.
The news can’t be true.
与第一、二人称连用时，还可以就可能的解决问题的方式或可能的行为提出建议。在这里，也可用could使语气婉转。
例：Can / Could we meet again next week? 下周我们可以再见面吗？
—What shall we do? 我们怎么办呢？
— We can / could try asking Lucy for help. ——我们可以请露茜帮忙试试看。
You can / could help me with the cooking. 你可以帮我做饭。
2. may的基本用法:
⑴表示“许可”，用can比较口语化。
例：You may / can come if you wish. 如果你想来，你就来。
You may not pick flowers in this park. 本公园内不许摘花。
（may not表示按规定不许可，如果用mustn’t则表示说话人不许可。）
我可以在这里抽烟吗？
—mustn’t表示明确的禁止。）
⑵肯定句中表示推测，“可能”。
例：It may rain tomorrow. 明天可能会下雨。
The news may not be true. 这个消息可能不会是真的。
例：Can it be true? 那会是真的吗？
Who can he be? 他究竟是谁呢？
⑶……？
—Yes, you may./—
3. must的基本用法:
⑴表示必须，强调说话人的主观意志。
例：I must go now, or I’ll be late.
You must be here by ten o’clock.
【注意】：表示“必须“时，must的否定式为而不是mustn’t。
也就是：—Must I/we do it now？
—Yes, youmust .
—No, you needn
例：—Must I go with them?
—No, you .
⑵表示推测，一般只用于肯定陈述句,表示非常肯定。
例：She didn’t look at me. She must be angry. 她不朝我看，一定是生气了。
He is good at English. He must know the word. 他英语好，准知道这个词。
You must be Mr. Jones. 想必您就是琼斯先生吧。
4. have to的基本用法：
have to可视为情态动词，但它与其他情态动词在用法上稍有不同。其他情态动词没有人称和数的变化，而have to却有人称和数的变化，要视主语的不同而变化。
例：I / You / We / They have to….
He / She / It has to….
You don’t have to….
Does she have to…?
，意思是“必须，不得不”。
和must不同之处：must强调主观需要
have to强调客观需要。
例：Sorry, I have to leave now. 对不起，现在我得走了。
I’ve got to go to a meeting. 我得去参加一个会议。
Will he have to work deep into the night? 他将不得不工作到深夜吗？
5. need的基本用法：
need的基本词义是“需要”，它既可作情态动词，又可作实义动词。
⑴ need用作情态动词时，只用于否定句和疑问句。它只有一种形式，后接动词原形。
例：I don’t believe you need worry. 我相信你没有必要焦急。
—Need we go so soon? 我们需要这么早就去吗？
— Yes, we must. / No, we needn’t. 是的，必须。／不，不必。
So I needn’t tell him, need I? 所以我不需要告诉他，对吧？
请比较以下两句话的不同意思：
You needn’t buy the coat. 你没有必要买那件外衣。（你还没买）
You needn’t have bought the coat. 你没有必要买这件外衣的。（而你却买了）
……？
—Yes，—No, you needn
⑵ need用作实义动词时，有时态、人称和数的变化。
如果人作主语，一般后接带to的动词不定式。即
如果物作主语，一般后用
例如：I need to look up this word in the dictionary.
My watch needs mending/to be mended. 我的手表需要修理了。
We don’t need to work today. (= We needn’t work today.)
Does he need to go right now? (= Need he go right now?)
6. had better的基本用法：
had better常略作’d better。现代语法认为它是一个助动词，因为它后接不带to的动词不定式。
意思是“最好做某事；还是做某事比较好”。
例：You’d better get some sleep. 你最好睡一会儿。
You’d better not do that again. 你最好别再做那件事。
What had we better do now? 我们现在怎么做才好呢？
Hadn’t we better tell her the truth? 我们是否最好不告诉她真相?
7. could, should, would, might表示推测：
①. must多用于肯定句中表示把握性极大的推测,意思为“一定、肯定”。
如: You have worked hard all day. You must be tired. 你已辛苦工作一整天了,一定累了。
The book must be his. His name is on the cover. 这本书一定是他的,封面上写着他的名字。【注意】 must不表推测时,在肯定句中意思为“必须(强调内在的职责)”,在否定句中意思为“不许、禁止”,以它开头的疑问句否定回答常用needn’t或don’t (doesn’t) have to。
如:We must obey the traffic rules. 我们必须遵守交通规则。
Cars mustn’t be parked here. 此处严禁停车。
—Must we hand in the papers this week? 我们必须本星期交论文吗?
—No, you needn’t. 不,你们不必(本星期交)。
②. can / could多用于否定句、疑问句或感叹句中表示推测、怀疑,两者在时间上没有差别。用can
时不相信的程度更强一些
如:The man under the tree can’t be Tom. He’s gone to England. 这个人不可能是Tom,他已经去英国了。
Can it be true that he was fooled by a five-year-old boy? 他被一个五岁的孩子愚弄了,这能是真的吗?
Could this be an excuse? 这会不会是个借口?
How can you be so careless! 你怎么这样粗心!
③.may / might多用来表示把握性不大的推测,意思为“也许、可能”, might比may的把握性更小
一些。
(注意区分“不可能”与“可能不”在把握性大小上的差异。)
如:Mr. Wang may know Professor Li’s telephone number.王先生也许知道李教授的电话号码。
This might be the key Tom has been looking for.这可能就是汤姆一直在找的钥匙。
She may not be there today. 今天她可能不在那儿。
三、课堂小结
四、作业布置
一、典型例题【中考链接】
（）1．—Who is the man over there? Is it Mr. Li?
— No, it ______ be him. Mr. Li is much taller.
A. mustn’t
B. may no
C. can’t
D. needn’t
（）2．—Must I go with them tomorrow？
— No，you ______.
A. mustn't
B. shouldn't
C. needn't
D. can't
（）3．—______ I take some photos in the hall?
— No, you ______.
A. Can, needn’t
B. Must, mustn’t
C. Could, won’t
D. May, mustn’t
（）4．—Dad, must I finish my homework today?
—No, you ________. You may do it tomorrow.
A. needn’t
B. mustn’t
C. don’t
D. won’t
（）5．—The lake is said to be dry. Is that true?
—It _______.Look, some kids are swimming in it.
A. must be true
B. can’t be true
C. may not be true
（）6．—What is your mother going to do this Saturday?
—I’m not sure. She _____ go to see my grandmother.
A. can
B. must
C. may
（）7．—Susan has bought a large house with a swimming pool.
—It ______ be very expensive. I never even dream about it.
A. must
B. might
C. can’t
D. shouldn’t
（）8．—Listen! Is Professor Johnson giving a report in the hall?
—No, it be him. He has gone to Japan.
A. needn’t
B. may not
C. mustn’t
D. can’t
（）9．—Let’s go to the West Hill Park by taxi.
—Oh, it is not far away from here. We _______take a taxi.
A. couldn’t
B. mustn’t
C. needn’t
D. can’t
（）10．—Can you play the piano?
—Yes, I _______. I often practice it on weekends.
A. needn’t
B. need
C. can’t
D. can
三、课后练习
一、用can, may, must, need, have to, had better的适当形式填空：
1.You ________________ return the library book on time.
2.I ______________ (not) find the way to the hospital. _______________ you show me the way?
3.—________________ I finish the work right now?
— No, you ________________ (not). You ____________ do it later.
4.He said he ________________ (not) come tonight.
5.Her mother was ill. She ________________ stay at home and look after her.
6.It’s time for class. You ________________ stop playing football or you __________be late
for class.
7.We ________________ start right now, or they would get there first.
8.The cloud is lifting, so it ________________ (not) be a rainy day tomorrow.
二、选择填空
（）1.—Do we have to finish our homework this afternoon?
—Yes, you ________.
A. must
B. can
C. may
D. need
（）2. —Must I be in hospital for a week， Doctor?
—No， you . You can go back home tomorrow.
A.mustn’t
B.needn’t
C. must
（）3. The desk is not dirty. You _______clean it.
A. mustn’t
B. shouldn’t
C. needn’t C. can’t
（）4. —May I watch TV for a while？
—No, you _______. You have to finish your homework first.
A. shouldn’t
B. needn’t
C. mustn’t
D. won’t
（）5.—Is Jessica giving us a speech this evening?
—No, it ________be her. She________ to Japan.
A. mustn’t; has gone
B. mustn’t ;has been
C. can’t ;has gone
D. can’
t ;has been
（）6. It’s the library! So you________ know shouting is not allowed here.
A. can
B. must
C. need
D. may
（）7. Boys and girls, don’t forget your report . It ______ today.
A. can’t finish
B. can’t be finished
C. should finish
D. should be
finished
（）8.—Mr Smith must have been to your home this morning.
—No, he ______ ,because he didn’t know my address.
A. couldn’t
B. can’t
C. mustn’t
D. may not
（）9. —Must I mop up the window now?
—No, you________.
A.needn’t
B. can’t
C. shouldn’t
D. mustn’t
（）10. —Is Lucy knocking at the door?
—No. It ________ be Lucy. She is in Japan now.
A. needn’t
B. must
C. can’t
（）11. —Another cup of coffee?
—No, thanks. I _____ be off. Mary is waiting for me.
A. can
B. may
C. must
D. might
（）12. —I’m a little tired. Let’s go to the zoo by taxi.
—We take a taxi. It’s not far from here.
A. can’t
B. mustn’t
C. couldn’t
D. needn’t
（）13. If the traffic light is red, you ________ cross the road. It’s very dangerous.
A. don’t
B. mustn’t
C. needn’t
D. wouldn’t
（）14. —Must I finish watering the flowers now?
—No, you________.
A. must
B. won’t
C. needn’t
D. can’t
（）15. —I can’t give up smoking, doctor.
—For your health, I’m afraid you ________.
A. may
B. can
C. have to
D. must
（）16. It is usually warm in my hometown in March, but it _______ be rather cold sometimes.
A. must
B. can
C. should
D. would
（）17. —Our class won the English speaking contest.
—Congratulations! You _______ be very proud of it.
A. can
B. need
C. would
D. must
（）18. —Excuse me, where are we going to have our class meeting?
—I’m not sure. Ask our monitor, please. He know.
A. can
B. may
C. need
D. shall
（）19. —____________I borrow these magazines?
—Sorry, only the magazines over there can be borrowed.
A. Must
B. Would
C. May
D. Need
（）20. If the traffic light is red, you ________ cross the road. It’s dangerous.
A. don’t
B. needn’t
C. mustn’t
D. wouldn’t
(完整)初中英语情态动词练习题及答案
( )1 John___ come to see us tonight, but he isn't very sure yet. A. may B. can C. has to D. Must 2 They ___ do well in the exam. A. can be able to B. be able to C. can able to D. are able to 3 —May I take this book out? —No, you___. A. can't B. may not C. needn't D. aren't 4 You___ go and see a doctor at once because you're got a fever. A. can B. must C. dare D. would 5 —Can you speak Japanese? —No, I____. A. mustn't B. can't C. needn't D. may not 1. – He___ be in the classroom, I think —No, he ___ be in the classroom. I saw him go home a minute ago. A. can; may not B. must; may not C. may; can't D. may; mustn't 2 —Shall I get one more cake for you, Dad? —Thanks, but you___, I've had enough. A. may not B. must not C. can't D. needn't 3 Even the top students in our class can't work out this problem, so it be very difficult. A. may B. must C. can D. need 4 He isn't at school. I think he ___ be ill. A. can B. shall C. must D. has to 5 ___ I take this one? A. May B. Will C. Are D. Do 1 The children___ play football on the road. A. can't B. can C. mustn't D. must 2 You ___ be late for school again next time. A. mustn't B. needn't C. don't have to D. don't need to 3 —Must I do my homework at once? —No, you___. A. needn't B. mustn't C. can't D. may not 1 His arm is all right. He___ go and see the doctor. A. has not to B. don't have to C. haven't to D. doesn't have to 2 He had to give up the plan, ___ he? A. did B. didn't C. does D. doesn't 3 They had to walk here, ___ they? A. mustn't B. did C. didn't D. hadn't 1 He had better stay here, ___ he? A. doesn't B. don't C. hadn't D. isn't 2 You'd better___late next time. A. not to be B. not be C. won't be D. don't be 3 You'd better ___ your hair ___ once a month. A. had; cut B. had; cutted C. have; cut D. have; cutted 4 You___ ask that man over there. Maybe he knows the way. A. had better not to B. had not better C. had better D. had better not 1 —Shall we go and visit the History Museum next Sunday? —________ A. Here you are B. Sorry, I can't C. Yes, please D. Let me try 2 —Why don't you ask Mike to go with us? —Thanks, ___. A. I will B. I won't C. lean D. I may 3 —___ I take the newspaper away? —No, you mustn't. You____read it only here. A. Must; can B. May; can C. Need; must D. Must; must 1 Excuse me. ___ you please pass me that cup? A.Do B. Should C. Would D. Must 2 ___ you like to have another try? A. Could B. Will C. Would D. Do 3 —Would you like to go boating with us? —Yes, ___. A. I'd like B. I want C. I'd like to D. I do 1 You___ worry about your son. He will get well soon. A. needn't B. can't C. mustn't D. have to 2 The poor man needs our help, ___ he? A. need B. needn't C. does D. doesn't 3 —Must we do our homework first? —No, you___. You may have a rest first. A. mustn't B. needn't C. may not D. can't 1. I told Sally how to get here, but perhaps I _______ for her. A. had to write it out B. must have written it out C. should have written it out D. ought to write it out 2. —There were already five people in the car but they managed to take me as well. —It _______ a comfortable journey. A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been 3. It’s nearly seven o’clock. Jack _______ be here at any moment. A. must B. Need C. should D. can 4. Johnny, you _______ play with the knife, you _______ hurt yourself.
情态动词教案
武汉龙文教育学科辅导教案 学生王梓恒教师陈双莲学科英语 时间2月日星期时间段10:00—12:00 教学目标： 1掌握情态动词can, may, must, need, should…的含义和特点 2 掌握情态动词用法 3 掌握need作为情态动词和实义动词的用法 教学重难点： 1 含有情态动词的疑问句和否定句 2 情态动词表示推测的用法 3 掌握need作为情态动词和实义动词的用法 教学流程及授课提纲 一情态动词 （一）情态动词的定义: 情态动词表示说话人对某一动作或状态的态度。 （二）情态动词的特点 （三）情态动词的结构和意义 1.情态动词的基本句型肯定句、否定句、疑问句 2. 情态动词的意义：must“必须” ；can/could“能，会” ；may/might “可以”；should“应该”；would“愿，要” ；have to“不得不” ；need“需要” （四）情态动词的基本用法 1.can (could主要指过去时间) 2. may (might) 3. must（have to表示客观需要） 4.shall 5.should 6.will 7.would 二need 的用法 （一）用作实义动词 作为实义动词，need后面的宾语可以是名词、动名词、动词不定式或代词，这种情况下，need既可用于肯定句，也可用于否定句和疑问句，构成否定句和疑问句时要借助于助动词do或does. （二）用作情态动词 作为情态动词的need具有情态动词的一般性质，要充分阐释作为情态动词的need的用法，务必首先说明白情态动词的特征。 （三）用作名词
need作为名词，含义为“缺乏，需要”；其复数表示“基本需要”。要掌握两个词组：in (great) need of（急需）与meet the needs of(满足……的需要)。 学生对于本次课的评价： □特别满意□满意□一般□差 学生签字： 教师评定： 1、学生上次作业评价：□好□较好□一般□差 2、学生本次上课情况评价：□好□较好□一般□差 教师签字： 附： 跟踪回访表 家长（学生）反馈意见： 学生阶段性情况分析： 自我总结及调整措施： 龙文教育教务处 主任签字：
初中英语情态动词的基本用法讲解
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。
【英语】高一英语情态动词专项训练及答案含解析
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初中英语情态动词专项讲解
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初中英语情态动词讲解
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2012高一英语教案：情态动词(Modal Verbs)(外研版必修2)
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初中英语情态动词讲解练习和答案解析
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完整初二情态动词精选练习
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初中英语情态动词用法归纳
初中英语情态动词用法归纳 话题：动词情态教育学习 情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。考点一：can，may，must 等情态动词在陈述句中的用法：1. can的用法：（1）.表示能力、许可、可能性。表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力，此时may和must均不可代替它。如：She can swim fast, but I can’t .她能游得很快，但我不能。I can see with my eyes.我用眼睛看。（2）.表示许可，常在口语中。如：You can use my dictionary.你可以用我的字典。（3）.表示推测，意为“可能”，常用于否定句和疑问句中，此时can’t译为“不可能”。如：Can the news be true?这个消息会是真的吗？—Can it be our teacher?那个人有可能是我们老师吗？—No, it can’t be our teacher. He is on a visit to the Great Wall.不可能。咱们老师正在游览长城呢。【例题】—I think Miss Gao must be in the library. She said she would go there.—No. She __be there, I have just been there. A.can’t
B.mustn’t C.needn’t D.wouldn’t【解析】根据下文“我刚去过那儿”可知，应为“不可能”，can’t表示推测[答案] A2. could 的用法：（1）.can的过去式，意为“能、会”，表示过去的能力。如：He could write poems when he was 10.他十岁时就会写诗。（2）. 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？—Could I use your pen?我能用一下你的钢笔吗?—Yes, you can.可以。（注意回答）3. may的用法：（1）.表示请求、许可，比can正式，如：May I borrow your bike?我可以借你的自行车吗？You may go home now.现在你可以回家了。【例题】—_______ I borrow your MP3?—Sure . Here you are.A. May B.Should C.Must D. Would【解析】在此处表示请求，意为“做……可以吗”。答案：A(2) .表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。如：It may rain tomorrow .明天可能会下雨。She may be at home.她可能在家呢.(3) .may的过去式为might，表示推测时。可能性低于may。如：He is away from school. He might be sick.他离开学校了，可能是他生病了。(4) .表示希望、祈求、祝愿，常可译为“祝愿”。通常是用may +主+V例如：May you have a good time.祝你过得愉快。May you be happy!祝你幸福！May you succeed！祝你成功！4. must的用法：(1).must表示主观看法，意为“必须、一定”。如：You must stay here until I come back.
高中英语情态动词教案
情态动词 1．shall (1)表示命令、许诺、警告、强制、威胁、决心等，一般用于第二、三人称中，并用于陈述句。 The school rules state that no child shall be allowed out of the school unless acpanied by an adult. 学校制度规定，除非有家长陪伴，任何孩子不准离开学校。 You shall not get my support if you do such a thing. 假如你做那种事，我就不支持你。 (2)用于征求对方的意见或指示，用在第一、三人称的疑问句中。 —Has Mr Wang arrived? ——王先生到了吗？ —Yes，already.Shall he wait outside or just e in? ——是的，已经到了。他是进来，还是在外面等？ 2．must (1)表示禁止(用于否定句) Smoking must not be allowed in the office. 严禁在办公室吸烟。 (2)表示“偏执”“固执” Why must you be talking so loudly while others are studying? 为什么在别人正学习的时候，你非得这么大声说话呢？ 3．should (1)表示预测可能性，并意为“可能，(按道理)应该”。 It’s nearly 7 o’clock.Jack should be here at the moment. 快7点了，杰克此刻应该在这儿了。 (2)竟然，居然 I am surprised that you should speak in such a way. 我很惊奇你居然用那种口气说话。 4．would 与used to would 可表示过去反复发生的动作或某种倾向，后面接表示动作的动词，不能接表示状态的
初中英语情态动词用法归纳
初中英语情态动词用法归纳 情态动词有具体的词义，但也同助动词一样，需要与其他词语一起构成句子的谓语，另外情态动词没有人称和数的变化，情态动词后必须跟动词原形。 考点一：can，may，must 等情态动词在陈述句中的用法： 1. can 的用法： (1).表示能力、许可、可能性。表示能力时一般译为“能、会”，即有种能力，尤其是生来具备的能力，此时may和must均不可代替它。如：She can swim fast, but lean 她能游.得很快，但我不能。I can see with my eyes我用眼睛看。 (2).表示许可，常在口语中。如：You can use my dictionary. 你可以用我的字典。 (3).表示推测，意为可能”常用于否定句和疑问句中，此时can'译为不可能”女口：Can the news be true?这个消息会是真的吗？一Can it be our teacher那个人有可能是我们老师吗？一No, it can' t be our teacher. He is on a visit to the GreatlW不可能。咱们老师正在游览长城呢。 【例题】一I think Miss Gao must be in the library. She said she would go ther—No. She __be there, I have just been there. A.can ' t B.mustn ' t C.needn ' t D.wouldn 't 【解析】根据下文我刚去过那儿”可知，应为不可能” can'表示推测［答案］A 2. could 的用法： (1).can的过去式，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。 (2). 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) 3. may 的用法： (1) .表示请求、许可，比can正式，如：May I borrow your bike?我可以借你的自行车吗？You may go home now现在你可以回家了。 【例题】一______ I borrow your MP3?- Sure . Here you are. A. May B.Should C.Must D. Would 【解析】在此处表示请求，意为做……可以吗”答案：A (2) .表示推测，谈论可能性，意为“可能，或许”，一般用于肯定句中。如：It may rain tomorrow .