最新中考英语情态动词讲解PPT课件

must may/might/could can’t/couldn’t
do
be doing have done
What are they doing?
… must...
ቤተ መጻሕፍቲ ባይዱ
What is Ms Wang doing now?
The ground is wet. What happened last night?
Where are they from?
No.1
No.2
No.3
No.4
He/She must be from/come from… He/She may/might be from/come from…
What can it be? -Can it be a…. I think it…
-No, it can’t be a… (Yes, maybe.)
• 3．“猜测”（主要用于否定 句和疑问句）： • He can't be at home. (否 定句) • Can the news be true ? (疑问句)
may 和might 1．表示“许可” You may take a walk. Students may not make noise in the library. (may not 表示不许可或 禁止) May I come in? 否定回答No, you mustn't. /cannot. 也可以 may not 肯定回答sure, certainly, of course
What’s this? BALL
What kind of ball?
It must be... It may/might Can it be... could be...
What’s this?
... might/may/could ….
Young?
Or
Old?
Who can it be?
It must have rained last night.
How did Tom reach the cake?
He must have used a chair.
What is the house for?
Where are they?
Homework:
Finish Ex… in your exercise book. Finish Ex…. in your workbook.
What are they going to do?
No.1
No.2
No.3
No.4
He/She/They may/might/could….
can和 could 1表示“能力”I can swim , but my sister can't.
2．表示“许可”、“请求” Can I go with you ? (请求) Father said I could go to cinema. (表示过去的许可) You cannot smoke in the meeting room. (cannot 表示“禁止”) Could I use your phone?Yes, of course you can.肯定回答，不能用could ，一般是—Yes, please.— Thanks.
Might I trouble you for a light? "You may indeed."
• 2.表示"事实上的可能性" • It may rain tomorrow. (表示可能会发生)
must 1.表示“必须”、“务必”： We must obey orders. Must I pay now ? 肯定回答 Yes, you must 否定回答 No, you needn't 或 No, you don't have to 2.表示“预测” (必定，必会) 一般用于 肯定 句。可用于否定一般疑问句。 There must be a mistake. Mustn't there be another reason for his behavior?
•There must must be some mistakes.
•She can’t can’t be English. •Ask Jim. He may may know the answer.
must
be certain
may/might/could be not certain; be possible can’t be impossible
It may/might/ could be...
What’s in the box?
There may/ might/ could be ...
What do they do?
Policeman Postman Waiter No.1 No.2 No.3 Boss No.4
He must be a ….
can? may? must? could? might ? 1. Jim _________ sing very well. can 2. Hello, can/could/may __________ I speak to Jim? 3. He listened, but he __________ could hear nothing. 4. We are students. We _________ must work hard. 5. __________ I come in? May 6. You __________ talk in class. mustn’t