一般现在时情态动词句型转换

情态动词句型转换

情态动词用法: can, may, must, could, should, would , 后加动词原形。

1. He can play chess. 否定句：一般疑问句：

特殊疑问句：反义疑问句：

选择疑问句：(the guitar )

2. I can （can`t ～.）能力

I can`t work it out/ I can`t come on time./

I can`t carry the heavy box.

--- Can you spell Wendy,please?

---Yes,I can.W-E-N-D-Y,Wendy.

3. Can you ～? (Could you ～?) 能力，许可

Can you help me / swim / come at ten / dance / spell it / sing a song for us/ play with me /do me

a big favor?

4. may(may not)可以，表许可

You may drive my car,but be careful.

Students may not stay out after midnight.

Don`t play with the knife, you may hurt yourself.

5. May I～? 可以，表请求

May I help you / borrow your bike / use your eraser / speak to Sophie,please/have a look?

---May I smoke here?

---Yes, you may.

No, you mustn`t / can`t.

6.must 必须，应当

You must open the door at once, or else I`ll break it.

Work must come first.

---Must I go with them tomorrow?

---No,you needn`t.( No,you don`t have to.)

7. You mustn`t ～.（You can`t ～.）不准，禁止

You mustn`t cross the road when the light is red /smoke here/ do it again.

8. should (ought to) 应该

Maybe,we should tell him the fact.

I think today`s children should learn to respect their elders.

9. Could you～? 请求

Could you do me a favor?

---Could you lend me your dictionary?

---Yes,of course.

10.Will you～? 愿意，表请求

Will you please tell me the secret?

Will you have some coffee?