第一章 情态动词 Lecture 3
一 情态动词含义,种类
二 情态动词用法;
三 经典习题
一 情态动词
情态动词
can
(could)
may
must
should
needn't mustn't
本身有词义。
不能独立作谓语。
can(could)
表示请求、允许
表示推测(疑问和否定句中)
Can you swim?
情态动词用法
表示能力
Can you help me?
This can't be ture.
may
表示推测。
May I come in?
情态动词用法
表示请求和允许。
不用于疑问句。
Yes,you can.
No, you can't./mustn't.
可能是
may be
可能不
may not do
经典例题
1. _____ I use(使用) your bike? Sure. Here is the key.
A. May B. Must C. Should
2. ---May I go surfing alone this afternoon?
---No, you _______ . It's dangerous.
A may not B can't C needn't D don't
must
表示推测。
Must I stand up?
情态动词用法
表示必须、必要。
Yes,you must.
No, you needn't.
一定是,肯定是
不可能是
can't be
mustn't
needn't
/No, you don't have to.
/No,you don't need to.
经典例题
1. ---Must I take a bus?
---No, you . You walk there.
A.needn‘t , can B.mustn’t, may C. can‘t ; can
2. You ________ talk so loudly in the library.
A. mustn't B. can C. not
should
否定:不应该
You should help her.
情态动词用法
表示应该
You shouldn't watch TV now.
She is bleeding (流血). She go to hospital quickly.
A. could B. would C. should D. will
汉译英
你会打篮球吗?
2. 我可以进来吗?
3. 你绝不可以在教室里大喊。
4. 我必须回家。
5. 我应该早点起床吗?
Can you play basketball?
May I come in?
You mustn’t talk loudly in the classroom.
I must go home.
Should I get up early?
谢谢你的观看