(共11张PPT)
Revison to modal verbs
(情态动词复习)
Task 1: Homework
1. Correct your homework alone first.
2. Ask your classmates for help if you have trouble.
3. Read all the sentences aloud by yourselves and try to understand them better.
1. would的用法 (苏哲、朱颖静、俞淑婷、陈梦繁、沈凝)
2. can't和mustn't表示许可时的区别?
(蒋云丹、李佳、董子健)
3. can和may在表示可能性上有什么区别?
(伍杨子涵、邓宇浩、张星仪、徐頔)
4. can't和couldn't的区别?(龚雨欣、袁义成、徐沛、朱春莉)
5. 怎么区别need是作情态动词还是行为动词 (杨琳、黄涵宇)
6. 情态动词放句首时的回答是怎样的?
(许天若、朱颖静、张君怡、刘名琦、孙意、岳滢霜、俞淑婷、刘芯璐、苏培成、邵雯洁)
would是will的过去式,可以用于过去将来的时态中。例如:Our teacher said we would have a model P.E. test this Friday aftenoon.
would用于现在时,表示委婉提出请求、建议或看法,常和please连用,和Could you please一样,意为“请你......好吗 ” 例如:Would/Could you please not do it again
中考对would不作要求。
表示许可时,can't意为“不可以”,而mustn't意为“禁止”,“不允许”,语气很强。
表示可能性时,can多用于疑问句和否定句,
may则多用于陈述句,can't意为“不可能”,
may not意为“可能不”。
如:
Can the news be true No, it can not be true(不可能).
Where can they be now
You'd better ask the policeman over there. He may know the way.
What he said may not be right(可能不).
can't可以意为“不可以”(许可),
e.g. You can't take the books out of the reading room.
“不能”(能力),
e.g. My daughter can't swim.
“不可能”(可能性)
e.g. Mr. Li can't be in the room. He has gone to Beijing.
couldn't仅表示“过去不能”(能力)
e.g. I couldn't drive before 2009.
need作情态动词时,其后接动词原形,且只用在疑问句和否定句中。
e.g. You needn't worry about your son. He is old enough to look after himself.
Need I hand in the homework today?
need作行为动词时, 其后跟名词或带to的动词不定式作宾语。可以用于各种句型。
e.g. You need no more help, do you
It's rainy outside. You need to take an umbrella.
You don't need to worry about your son. He is old enough to look after himself.
Do we need to hand in the homework today?
---Can I/Could I ... ---Yes, you can. /Sure./Of course.
---No, you can't/mustn't.
---May I... ---Yes, you may. /Sure./Of course.
---No, you can't/musn't.
---Need I/Must I... ---Yes, you must/have to.
---No, you needn't/don't have to.
Task 2: Further study
1. Don't drive too fast, or you _______________ have an accident.
2. --May I park my car here
--No, you _________________. Look at the sign over there.
3. The man ___________ (not) be Mr. Zhang. He has gone to Beijing on business.
4. ---Must I return the books tomorrow
---No, you _______________________________________.
5. Mr. Green ____________ come to our party tonight because he is very busy. But I'm not sure.
6.----____________ you please tell me something about Mars
----Sorry, I _________. I don't know it very well.
7. Jane __________ sing English songs very well when she was eight years old.
8. There is a book on the playground. It _________ be John's. Look! His photo is in it.
may/might
can't/mustn't
can't
don't need to/don't have to/needn't
may not
Could/Would
could
must
can't
Task 3: Quiz