牛津译林版七年级下册Unit7 Grammar1 can could、may的用法课件(共22张PPT)

(共22张PPT)
Unit7
Abilities
Grammar1
can/could/may的用法
1
2
3
掌握can/could/be able to用来表示能力，can与could用来表示能力时的区别
了解can/could/may可以用来表示许可，明白它们之间的用法区别
学会运用
学习目标
Enjoy a song
Hall of Fame
Task 1 Express our ability(能力)
What can you do now
I can swim now.
I could swim .
ten years ago
Task 1 Learn how to talk about ability
What can she do now
She can go riding now.
She could go riding .
ten years ago
(合作探究）Find some rules!
Can/could表示能力
I can go riding now.
I could go riding .
ten years ago
I can swim now.
I could swim .
ten years ago
我们可以用can/could（能、会）来表示能力
can表示现在的能力；could表示过去的能力
结合课本P122
Take turns to ask and answer questions using “can” or “could”. Try to make dialogues in pairs.
1.____ you speak Japanese
2._______ you play the piano last year
3._______ you cook
4._______ you use a computer when you were 3
5._______ you ride a bicycle when you were very younger
6._______ you understand English TV programmes in 2000
Can
Could
Can
Could
Could
Could
What can he do now
He can play basketball now.
He is able to play basketball now.
He was able to play basketball ten years ago.
What can they do now
They can ride a bike now.
They are able to ride a bike now.
They were able to ride a bike ten years ago.
He is able to play basketball now.
He was able to play basketball ten years ago.
They are able to ride a bike now.
Find some rules!
They were able to ride a bike ten years ago.
我们也可以用 be able to（能、会）来表示能力
am/is/are表示现在的能力
was/were表示过去的能力
Rules
*can表示现在的能力
*could表示过去的能力
can/could可表示能力
can/could+V-原形
be able to可表示能力
* am/is/are able to表示现在的能力
* was/were able to表示过去的能力
be able to do （v-原形）sth.
can/could是情态动词
没有人称变化
不与助动词连用
(用can/could或者can’t/couldn’t填空）
1
2
3
4
—What __________do for you, sir
—I need a pair of glasses.
2. It is hot today, so we_______ wear shorts.
3. She____________swim in the past. But now she can.
4. I _________dance at all. It is difficult for me.
5. My sister___________walk because she is six months old.
Exercises
can
can
couldn’t
can’t
can’t
点此替换文本
Task 2 Ask for permission(请求)
-Can I borrow your car
- Sorry, I’m afraid you can’t.
- Of course, you can.
Daniel wants to borrow a car from his friend.
点此替换文本
Task 2
-Could you borrow me some money, mum
- Sorry, I’m afraid you can’t.（否定回答）
- Of course, you can.（肯定回答）
Daniel wants to borrow money from his mother.
只能用can/can’t回答
点此替换文本
Task 2
-May I use your mobile phone
- Of course, you may.（肯定回答）
Daniel wants to ask the stranger for help.
- No, you can’t.（否定回答）
Can 表示非正式的请求，一般请求对象是家人或者朋友
Could 是can的过去式。could比can的请求更加委婉一些/礼貌，用法比can正式，这时could不表示过去，回答用can；请求对象是长辈或者老师。
1. Can 与could
Can/could/may表请求
2. May
May 表示正式的请求，一般请求对象是陌生人或者尊敬的人
1. _________ I borrow your photos of the fashion show, Millie
Sorry, you ________! I don’t have any.
2. _________ I use your pen, mum
Yes, you _______.
3. _________ I turn on the lights, Miss Yang
Yes, you _______.
Can
can’t
Could/May
can/may
May/Could
may/ can
Practice
用can/could/may填空
A trip to South Hill
Amy: (1)__________________I take my cousin Shirley with us, Mr. Wu
Mr. Wu: Yes, you(2)_______________. But we’ll get there by bike. (3) _________she ride a bike
Amy: Yes, she(4)________. South Hill is a good place to have fun.
Can/Could/May
can/may
Can
can
A trip to South Hill
(5)__________________ we go camping there
Mr. Wu: I’m afraid you(6)___________.
Amy: I see. (7)__________________I make a call on your mobile I left mine at home.
Mr. Wu: Of course you(8）_____________. By the way,
(9)__________you take your camera with you, Amy
Amy: No problem.
can’t
Can/Could/May
can/may
can
Can/Could/May
顺便说一下，顺便说说
没关系
My car is broken. ______ you please give me a lift
A. Must B. Need C. Should D. Could
2. By the way she was eight, Linda _______ read English and French.
A. could B. must C. need D. may
3. If we don’t protect nature, some wildlife_____ die out in the future.
A. need B. may C. can’t D. shouldn’t
4. –My English is poor. Could you help me with it
-_________.
A. Thank you B. Me, too C. No problem D. See you
D
A
B
C
Practice
Choose the best one!
1. Can/could表示能力
can 表示现在的能力 could 表示过去的能力
2. Be able to也表示能力
am/are/is able to表示现在的能力
was/were able to表示过去的能力
3. Can请求家人/朋友 -can/can’t
Could请求长辈/老师 -can/can’t
May请求尊敬的人/陌生人 -may/can’t
Summary
Finish exercise book
(完成同步练习）
Homework
2. Preview the excisebook on P78(感叹句)