资源简介

情态动词
(一)动词分类
助动词
不同时态的助动词有:
2.系动词
系动词包含 be动词，感官动词，表变化、结果的动词，如am/is/are,sound/look/taste/smell/feel,become/grow/go/get/turn,prove，stay/keep/remain,seem/appear
3.实义动词
又称行为动词，可以分为及物动词，不及物动词work,run,walk,listen.
区别：及物动词+宾语，不及物动词后不能直接跟宾语
4.情态动词
1.can：
①表能力，“能，会”
I can speak English
We can take the bus and the metro to school.
We can plant more trees.
We (能拖地).
②表允许，请求 ，could语气更委婉。Could还是can的过去式。
Can I use your computer
— Could I use your mobile phone
— Yes, you can. Here you are.
③用can't，表示“不可能”
Mr Wang can't be at home. He is abroad now.
④表示惊异、不相信等态度“怎么，如何”(主要用于否定句和疑问句中)
Eg:How could he do such a thing
--How could I thank you enough --Don’t mention it.Any other man in that case would have done that.
--How could you eat that alone
How could the man remain such a mystery
How could I get in touch with him with this tricky address
※Why can’t I go to the party
May
①表示许可或征求对方的许可，“可以”的意思
May I use your computer
回答以may 开头的疑问句有如下表达方式：
— May I smoke here 我可以在这儿吸烟吗？
— Yes, you may/can./Yes, please./No, you can't/may not./No, you'd better not.
②表推测
(眉山)— I can't find my phone anywhere.
— You may have lost it while shopping.
3.Must:
①表强制，义务
Eg:You must finish your homework before you play football.
②表推测“一定，必定”
Eg:The T-shirt must be Tom’s--He like black.
③一般疑问句的否定答语：
Eg:--Must I finish my homework now
--No,sb needn’t/don’t have to
. - Must we return the book to the library today
- No, you _________ . You can _________ it for two weeks.
A. mustn't; keep B. mustn't; lend
C. needn't; keep D. needn't; borrow
④mustn’t：“禁止，表示法律法规条文要求的”
Eg:We mustn’t play on the road.
We mustn’t cross the raod when it is red man.
※What mustn’t we do on the road
4.should
①应该
Eg:We should use paper bags and glass bottles.
We should not drive so much.
We should not plastic bags (使用太多的塑料袋，塑料瓶)
We should (保护树木)
②竟然
Mary should love such a person as Jack.
练习：
1.—___ I take my umbrella with me —____better to do so. The weather is changeable.
A. Must; You’d B. Shall; It’s C. Need; You’d D. Would; It’s
2. They think the project needn’t __________again.
A.discussing B.to be discussed C.be discussed D.discuss
3.--- Mum , why do I have to wash hands so many times a day
-- For your health , you be too serious .
A . can ’ t B . shouldn ’ t C . mustn’ t D . needn ’ t
4.---Mum, do you think I ______ take part in the Chemistry competition
---Why not If I were in your shoes, I certainly would.
A. might B. would C. should D. must
5.— I’ve told you many times you _____ put the scissors there. The kids may play with them.
— Sorry, I won’t do it again.
A. wouldn’t B. mustn’t C. couldn’t D. needn’t
6.“As a Chinese, I __________ be too hard-working,” Wang Yaping stressed after returning from space.
A. mustn’t B. shouldn’t C. needn’t D. can’t
7.― Remember what the doctor said You _____take more than two spoons of medicine at a time.
― I know that, Mum. Three is harmful.
A. mustn’t B. needn’t C. wouldn’t D. couldn’t
8.—Mr Zhong, why should we have to wash hands so often a day
—For your health, you ________ be too careful.
A．needn’t B．shouldn’t C．mustn’t D．can’t
9..—The haze is so serious now. It is sure to be harmful to our health.
—Yes, I wonder when we ______ worry about the air we breathe.
A. can't B. needn't C. mustn't D. shouldn't
10.—Dad, come and look! It’s all white outside.
—There ________ be a heavy snow last night.
A. would B. need C. can D. must
11.—How is your new teacher
—We_________ask for a better one. All our classmates love her so much.
A. could B. couldn’t C. should D. shouldn’t
情态动词
1-10--BCACB DAABD 11:--B

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