情态动词用法导学案

Modal verbs（情态动词的用法）

————课堂导学案

一、Lead in

Watch a video, then answer a question.

---How does Mr. Bean like the man? --- _____________________

二、教学过程

Step 1: 复习情态动词用法一 5 tasks

1.动词的种类：_________________ _________________

_________________ _________________

2.情态动词的定义:___________________________________________________

3.已经学过的情态动词：4-3-2

①能、会____________ 也许，可能___________

应该______________ 将会_________________

②必须___________ 需要________________ 敢_______________

③不得不_________ 最好_____________________

4 情态动词的语法特征：

①后接动词____________He can speak English.

②无_____和______ 的变化They can speak English?

③构成否定句时，在其后加______ 构成疑问句时，将其_____

He can’t speak English Can he speak English?

注意：have to 不遵循以上②、③规则，其有_____ _____的变化，疑问句也要借_____来完成。如：They have to go home . She has to go home.

They don’t have to go home. She doesn’t have to go home.

Do they have to go home? Does she have to go home?

④情态动词的肯定回答, 用开头的词来回答.

--- May I go now? ---Yes, you may.

⑤情态动词疑问句的否定回答，通常用相应的否定形式.

---Can she swim?---No, she can’t.

但may 和must 的一般疑问句的否定回答，分别用____________ ; _____________

5. Have a try(小试牛刀)

( )1. ---Must we clean the classroom before breakfast? ---No, you _____.

A. can’t

B. may not

C. mustn’t

D. needn’t

( )2. ---Can you tell us the story in English? ---No, I_____.

A. needn’t

B. don’t

C. won’t

D. can’t

( )3.---May I take the books out of the room?--- No, you ___.

A. may not

B. mustn’t

C. needn’t

D. don’t

( )4. You _____ go there at once.

A. hav en’t to

B. doesn’t have to B. don’t have to D. not have to

Step 2 情态动词表推（猜）测，4 tasks。

1. He plays basketball every day, so he must be very strong now.

2. must /have to

must 表________________________

2. He looks handsome, he may/might/could be an actor in the future.

may/might /could表___________________

表示“可能性”，三者之间区别不大may 的可能性稍大。

3. can’t / can

①He is riding a bike outside, so he can’t be at home.can’t 表_______________

②Can he be a little clever?can 表________________________

4 活学活用

（）1. Peter ____ come with us tonig ht, but he isn’t very sure yet.

A. must

B. may

C. can

D. will

（）2. I thought you ____ like something to read, so I have brought you some books.

A. may

B. might

C. can

D. must

（）3.---___the man there be our math teacher ? ---He ___be, but I’m not sure.

A. May, can’t

B. Can, can’t

C. Can, may

D. May, mustn’t

（）4.-What’s the time now?- It’s seven. It’s still early. You____ worry about the time.

A. can’t

B. needn’t

C. mustn't

D. may not

（）5.--I’m sorry I didn't win the game. --Well, that’s OK. You___ win every time.

A. mustn’t

B. maynot

C. can’t

D. shouldn't

Step 3 Exercises 2 tasks 一、Best choice

（）1. ---Who is the man over there? Is It Mr Li?

--- No, it_________ be him. Mr. Li is much taller. （河北）

A. mustn’t

B. may not

C. can’t

D. needn’t.

（）2. __ I read the newspaper on your desk? I’d like to read today’s SARS n ews.（北京）

A. Do

B. Must

C. May

D. Need

（）3. ---_________ I take the new magazine(杂志home from the reading-room?

---No, you______.（山东）

A. Can, needn’t

B. May; mustn’t

C. May; may not

D. Must; mustn’t

（）4. ---Where is Jack, please? (杭州）---He ________ be in the reading room.

A. Can

B. need

C. would

D. must

（）5.（福建厦门）Sandra didn’t come to school today. I think she _________ be ill.

A. shall

B. can

C. must

D. should

（）6. --- Would you like to go out for a walk with us?

--- I’d love to. But my mother is ill. I_______ look after her.（湖南）

A. have to

B. could

C. may

D. need

（）7. This key ____be Peter’s. His is still in the lock.

A. may not

B. can’t

C. mustn’t

D. needn’t

（）8. It____ rain this afternoon, but I’m not sure.

A. will

B. can

C. must

D. may

（）9. ---___ he be your best friend? --- No, he is much taller.

A. Shall

B. Can

C. Need

D. Should

（）10. Henry ___be at home because he phoned me from the farm just now.

A. mu stn’t

B. may not

C. can’t

D. needn’t

二、用must, could, might, can’t 填空。

1. ---Look! That woman looks like our English teacher.

---It _____________be her. She has gone to Shenzhen.

2. –Whose pen is this? ---It __________be Jack’s. He did his homework here just now.

3. He likes reading. Now he ___________be reading in the library.

4. –Is that boy Wang Hai?--It _____________be him. He’s much taller.

5. The basketball ___________be Li Dong’s. He often plays basketball.

三、Summary

四、homework 1.Finish a paper of modal verbs 2.Preview Section A.