人教版八年级上册 Unit 9 Can you come to my party?Section A Grammar Focus-3c 课件 (共24张PPT)

(共24张PPT)
Section A Grammar Focus-3c
1.帮助我的父母
2. 为考试做准备
3. 我非常乐意。
4. 去看医生
5. 得了流感
6. 去见我的朋友
7.我没空。
8.恐怕不行
9.太多作业
10.骑单车兜风
11.去年秋天
12.闲逛，常去某处
13.练习小提琴
14.为…学习
help my parents
prepare for an exam
I’d love to.
go to the doctor
have the flu
meet my friends
I’m not free/available.
I’m afraid not.
too much homework
go bike riding
last fall
hang out
practice the violin
study for
Revision
Observe and learn
用can发出邀请
用can打听第三方是否能参加聚会，表示一种可能性。
接受邀请
拒绝邀请
说明原因
might情态动词，意为“可能”
表示的可能性很小
情态动词 can 有一定的词义，但不能独立存在，它必须与动词原形一起构成谓语。
情态动词 can 没有人称和数的变化， 否定形式是can’t， 过去式是could。
1. can表示做某事的能力时， 对以它开
头的一般疑问句作肯定回答用“Yes, 主语 +can.”； 作否定回答用“No, 主语 + can’t.”
情态动词 can 的基本用法
I can speak English.
--Can you speak English
--Yes, I can.
--No, I can’t.
2. can表示请求、 允许做某事时， 对于以它
开头的一般疑问句：
作肯定回答：Sure, I’d love to.
作否定回答：Sorry, I can’t. / I’m afraid not.
/ I’d love to, but …
— Can you come to my house next Monday
— Sure, I’d love to.
— Can you go shopping with me this weekend
— Sorry, I have to practice the violin.
情态动词 can
用法
1. can 表示能力，表示“能，会”。
eg. She can play the piano.
2. can 表示许可，表示“可以”。
相当于may（比may更口语化）；此外，could的语气更为委婉。
eg. May I come in
Could you help me
can表示邀请时常用一般疑问句句式，结构为:
Can+ 主语+ 动词原形+ 其他？
can表示邀请的用法
情态动词主要有：may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to
1. may/might的用法
(1)may也可表示邀请， 注意其否定回答为“No, 主语＋ mustn't/ can’t”。
—May I go now ——我现在可以走了吗？
—No, you mustn't. ——不，你不能走。
(2)may表示说话人的猜测， 认为某一事情可能发生，其否定结构为may not, 其过去式为might not。
eg. The newspaper says that it might rain．
(3)might表可能，其语气比may更委婉，更加不确定。
His parents might come today. 他父母今天可能会来。
拓展--其他情态动词
2. must/have to的用法
(1)must表示“必须”或“应当”，其否定式为mustn't。
以must开头的一般疑问句的肯定回答为：Yes, 主语＋must.
其否定回答为：No, 主语＋ needn't.
eg. --Must I finish my schoolwork today 我今天必须完成我的功课吗？
--No, you needn’t. 不，你不需要。
(2)have to也表示“必须，不得不”。
一般情况下，must表示说话人的主观看法，而have to 表示客观需要。
(3) 注意： must还可以表示推测 ，“一定” eg. It must be delicious. 它一定很好吃
一、单项选择
1. Dirty air and water are harmful. They kill plants, and even people.
A. can B. can’t C. should D. shouldn’t
2. --Dad, I go out with my friends tomorrow？
-- I’m afraid you can’t.
A. would B. may C. need D. should
二、用have to和must填空
1. Her mother was badly ill, so she call the doctor at midnight.
2. My parents said that we study hard.
即时演练
A
B
had to
must
1. A: What are you going to do on Saturday
B: I’m not sure. I might _________________
2. A: What are you planning to do after school
B: I don’t know. ____________________
watch TV on the weekend my cousin visit grandparents practice the violin
practice the violin.
I might watch TV.
Complete the answers with might and one of the phrases in the box.
3a
3. A: When will you finish the science
homework
B: ______________________________
4. A: Who are you going to the movies with
B:_______________________________
5. A: Are you free to come to my place on
Saturday
B: _______________________________
I might finish it on the weekend.
I might be going with my cousin.
I’m not sure. I might visit grandparents.
1. Inviting: (can / play tennis) ________________________________
Accepting:________________________
Can you come to play tennis
Sure, that sounds great.
Complete the sentences below. Use the words in brackets to help you.
3b
invite v.邀请 invite sb. to do sth.
accept v. 接受
↓
↓
2. Inviting: (would like to/ go to the movies)
_______________________________________
Refusing :
________________________________________
Reason (might have to):____________________
_________________________________________
Would you like to go to the movies
I’m afraid not.
I might have to help
my parents.
refuse v. 拒绝 refuse to do sth.
↓
3. Inviting: (can/hang out with us tonight)
_____________________________________
Refusing:_______________________________
Reason: (must)_________________________
Can you hang out with us tonight
No, I can’t.
I must finish my homework.
4. Inviting: (would like to / come to my birthday party)
__________________________________
Accepting:__________________________
Would you like to come to my birthday party
Sure, I’d love to.
Write down everything you have to do next week. Choose a day and time to have a party. Then invite classmates to your party.
3c
Group work
A: 你能来参加我的聚会吗？
B: 什么时候？
A: 下周，在周四晚上。
B: 很抱歉。我不得不为数学考试学习。
Can you come to my party
When is it
Next week, on Thursday night.
I’m sorry.
I have to study for a math test.
1.— ______ you give me a hand I can’t do it by myself
— Sure.
A. Need B. Must C. Should D. Could
2. —Must I dress up like a princess
—No, you _____. You can choose whatever you like.
A. can’t B. mustn’t C. shouldn’t D. needn’t
3. —Jack, you finish you homework in 20 minutes
— Yes, I can.
A. can B. must C. should D. need
D
当堂训练
D
A
4. —Whose schoolbag is this
—It ______ be Lily’s. Her name is on it.
A. must B. should C. might D. may
5. I ______ her invitation because I must prepare for an exam.
A. rewarded B. accepted C. refused D. received
6. Jim invited us ______ come to his party.
A. come B. to come C. came D. coming
C
A
B
1. Jim play soccer with his friend this weekend, because he is very busy.
A. can B. cans C. cann’t D. can’t
2. Henry his homework this afternoon.
A. have to do B. have to doing
C. has to do D. has to doing
3. — — It’s October the 14th.
A. When is today B. What’s today
C. What time is today D. What day is today
D
C
I. 选择填空。
D
Exercises
1. 星期六你能来我的聚会吗？
____ you _____ to my party on Saturday
2. 当然，我乐意去。Sure, ____ ____ ___.
3. 对不起，我必须为数学考试而学习。
Sorry, I _____ ______ ____ a math test.
4. 明天晚上你能去看电影吗？
____ you ____ to the movies __________night
I’d love to
Can come
must study for
Can go
II. 根据课本内容, 完成下列句子。
tomorrow
5. 当然可以，听起来很棒。
_____, that _______ _____.
6. 恐怕不行，我得了流感。
I’m ______ not. I have the ____.
7. 他能参加聚会吗？
____ he ___ to the party
8. 不能，他得帮助他的父母。
No, he _____. He _____ to help his parents.
9. 她能参加棒球比赛吗？
____ she go to the baseball ______
Sure sounds great
afraid flu
Can game
Can go
can’t has
10. 不，她没有空。她必须去看医生。
No, she’s ____ _________. She ______ ___ to the _______.
11. 他们能去看电影吗？
____ they ____ to the _______
12. 不，他们没有空。他们可能必须去见朋友。
No, they’re not ____. They _____ _____ ___ meet
their ________.
not available must go
doctor
friends
Can go movies
free might have to
中考链接
You ____ walk on the wet hill path because
you ____ fall and hurt yourself.
A. must; might not B. mustn’t; might
C. needn’t; need D. must; must
句意“你一定不要在潮湿的山间小路行走，因为你可能摔倒伤到自己。
B
It’s a Birthday Party
Friday, June30, at five thirty
Betty’s house, 327th Street
Come and have fun!
For whom :
Time :
Place :
Betty
Write an invitation based on the following information.
Homework