Grammar and usage(1): Modal verbs: general introduction教学教案设计

Modal verbs-情态动词学案

情态动词的定义：Modal verbs are used to describe one’s e_______

and a_________. 情态动词的特征：_______________,

_____________________, ___________________. 情态动词可以用来表示许可，责任，能力，可能性等，请将左右相应信息配对。

1.The girl can speak now.

permission 2.She might recover her strength soon.

obligation

3.Can we leave now?

ability 4.You must make every effort to help them.

certainty

情态动词的用法要点：

I. can

& be able to 1. My

brother _____ play table tennis very well.

（A. can

B. is able to）

2. The fire spread quickly but everyone ___ escape. （A. could

B. was able to）

3. Being a teacher _____ be difficult.

（A. can

B. is able to）

4. He will ________ tell you the news soon.

（A. can

B. be able to）

5. Mr. Li might _______ arrive here tonight.

（A. can

B. be able to）

6.这种方法使得我们能够节省很多时间。(be able to) __________________________________________________________

II.Shall

&

will 1.

____ I / we/ he wait outside?

（A. Shall

B. Will）

2.

____ you open the door, please? （A. Shall

B. Will）

请指出句中shall的含义：

3.

I promise that you shall get a bike on your birthday. _____________________ 4.

Everyone shall get to school before 6 am. in the morning.

______________________

5.

One of our rules is that every student shall wear school uniforms while at school.__________

III.

must

想必下过雨了，因为地上湿了。(请翻译) _________________________________________________________ 请指出句中must的含义：

All passengers must wear seat belts. ________________________________________________ We were ready to have a holiday, but my baby must fall ill.______________________________ It’s 11:00pm now! Must you play the piano so late? ____________________________________ -- Must we rush to the frontline?

--Need we rush to the frontline? -Yes. You ________.

/ No, you ________.

-Yes. You ________.

/ No, you _______.

情态动词的否定式（请翻译划线部分）

1.

You shouldn’t park here; the street is narrow. 2.

Today is Sunday. You needn’t go to school. 3.

He may not come tonight, but I am not sure. 4.

The old man can’t be her grandpa, because her grandpa died in an earthquake. 5.

You mustn’t play football in the street, because it is quite dangerous. 6.

I tried many times, but the door won’t open.