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学员编号： 学员姓名： 年 级： 初一 辅导科目： 英语 课时数及课时进度： 学科教师：
学科组长 / 带头人签名及 日期
课 题 情态动词
授课时间：
教学目标
备课时间：
情态动词 can，must，may 的用法
重点、难点
掌握三个情态动词的用法
考点及考试要求
掌握情态动词的用法并能灵活运用
教学内容
Step 1: homework checking and dictation Step 2: 情态动词
一、概念：情态动词是一种本身有一定的词义，表示说话人的情绪、态度或语气的动词，但不能单独作谓语，只能和其他动词原形构成复合谓语，没有人称和数的变化。
情态动词数量不多， 但用途广泛，主要有： can (could), may (might), must, need, ought to, dare (dared), shall
(should), will (would) .
二、 can/could
1. 表示能力（如体力和脑力方面） ，意为“能、会”
Can you speak Chinese?
Can you play basketball?
2. 表示请求或者允许，多用在口语中，意为“可以、能”等客观条件的允许。用于疑问句中用来提出要求，用于否定句中表示不允许。
Can you help me?
You can’tplay the computer
3. 表示可能，理论上的可能。
He can be out now.
It can’tbu sunny all the time.
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4. 表示说话人的猜测、怀疑、不肯定等，主要用于否定句、疑问句、感叹句中，带哟感情色彩。
How can yo be so rude!
Can he be back?
5. could 可以作为 can 的过去式，也可以在提出请求时表示委婉。
He could save the little boy.
Could you help me?
三、 may, might
1. 表示“许可、准许” ，此时与 can 同义，可以互换使用
You may/can go to the cinema this evening.
☆注意：表许可时其答语可以用“ Yes,you may”.但是由于用 may 做肯定回答语气显得生硬、严肃，因此
一般用 Yes, please. /Certainly. / Of course这.些回答显得热情、客气。
拒绝对方时，其答语可以用 No, you mustn’t. / No, you can’t. / Sorry, you can’t. / No, please don’t等
--May I come in?
--Yes, please
--Certainly. Here you are.
--May I use your ruler?
2. 表示可能性时，常用在肯定句中，意为“可能、也许” He may be very busy now.
He said that she might not be at work today.
3. can 和 may 都可以表示推测。 Can通常用在否定句和疑问句中， may 通常用在肯定句和否定句中。 虽然
两者都可以用于否定句，但是程度不同，
can’t的语气比 may not 更强。
It can’tbe true.
It may not be true.
4. 表示希望、祈求、祝愿，常可以译为“祝愿”
May you have a good time.
May you be happy.
5. might 可以作为 may 的过去式，也可以在提出请求时表委婉；在表示可能性时，
might 的可能性比 may
更小
☆注意： can 和 may 的区别
1. can 和 may 都可以表示“许可” ，在征求对方意见时用 may 比较多
May I go now?
2. 在询问客观上是否可以时，用
can Can we take the books out?
3. 在两者都可以用时， may 更客气一些
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4. 在陈述句中用 can 比较多
You can sit here.
5. can 还可以表示能力， may 无此用法
6. 在否定句中一般不用 may not，常用 can’t表示不可能
He can’tbe at home tonight.
四、 must
1. 表示“必须、一定要” ，多强调说话人的主观看法（表示客观需要时，常用
_____________）
否定式 mustn’t表示“一定不要，禁止”
You must see the doctor.
Must you go soon?
对于 must 开头的一般疑问句，如果要做否定回答，可以用
needn’t, don’thave to，不能用 mustn ’t
--Must I come over tonight?
--No, you needn’t
can’t
2. 表示推测，意为“准是，一定是” ，但是通常只用于肯定句，在否定句、疑问句中通常用 It must be true.
Can it be true?
It can’tbe true
Step 3：Practice
一、用 can，may， must 的适当形式填空
1. __________ I ask you a question?
2. Attending a ball __________ be exciting
3. Michael __________ be a policeman, for he is mush too short.
4. –Are you coming to Jeff’sparty?
--I’m not sure. I __________ go to the concert instead.
5. He never takes a taxi. He __________ be very poor.
6. I thought you __________ like something to read, so I brought you some books.
7. Look! I __________ stand on my hands.
8. He __________ have been to Shanghai.
9. The play is not interesting. I really __________ go now.
10. She __________ like this place.
二、根据汉语提示给出下列句子的回答
1. –Must we hand in our exercise books today?
______________________________不.(，没有必要 )
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2. Can I call you by your first name?
______________________________是(的，可以 )
3. Could I come here again tomorrow?
______________________________是(的，你可以来 )
4. Must we send in our pla this week?
______________________________是(的，必须交 )
5. May I use you pen?
______________________________可(以，给你 )
三、选择
1. Helen __________ go on the trip with us, but she isn’tquite sure yet. A shall
B must
C may
D can
2. Johnny, you __________ play with the knife, you __________ hurt yourself. A won’t,can’t
B mustn’t, may
C shouldn’t, must
D can’t, shouldn’t
3. A computer __________ think for itself; it must be told what to do. A can’t
B couldn’t
C may not
D might not
4. –Could I borrow your dictionary? A must
--Yes, of course you __________.
B might C can D could
5. How __________ you say that you really understand the whole story if you have covered only a part of the article?
A can B must C need D may
6. Oh, dear! What on earth __________ this mean? A could
B can
C may D might
7. –Must I finish my homework today? A can’t
B needn’t
C mustn’t
--No, you __________.
D may not --Speaking.
8. --__________ I speak to Mary? A Must
B Need
C May
D Shall
9. This match problem is too hard. Nobody __________ do it. A may not
B may
C can’t
D can
10. –Can you speak Japanese? --No, I __________. A can’t
B mustn’t C may not D needn’t
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四、在空格处填入适当的词，一空一词
Tom: Excuese me. __________ you tell me the way to No. 3 Middle School?
Wang Hai: __________,I m’a student there. I m’going to school now. You __________follow me.
Tom: Thank you!I m’ new in No. 3 Middle School. My name is Tom. __________ I know you name?
W: Wang Hai. Why __________ your parents send you to school for the first time?
T: Well, I prefer doing things by myself. However,I m’ lucky today. You are so helpful. Thank you!
W: It’s a pleasure. We are schoolmates now. __________ you please help me with my English?
T: __________!I m’ weak in Chinese, __________ you teach me Chinese?
W: Sure! Let’shelp each other.
T: Good idea!
W: By the way, how do you like Chinese traditional music?
T: Very much! Erhu, dizi, and pipa sound really wonderful.
W: There is going to __________ a Chinese traditional music concert at the Capital SatdiumIve’. got two tickets. Would you like to come?
T: __________ love to . thanks so much!
W: Don’tmention it!
Step 4：more practice
Homework
一、单项选择
4. As we know, fish ______ die out of water.
A. may B. is going to C. can D. will
5. –Can you answer my question, Lily?–Yes, I ______.
A. may B. need C. must D. can
6. –Excuse me, ______ you tell me the way to the nearest bus station?
--Sorry, I can
’ t. I ’ m a stranger here.
A. can B. need C. must D. may
10. After such a long journey, the children ______ be very tired now.
A. can B. must C. have to D. need
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初一英语：情态动词canmustmay的用法知识讲解.docx
