Unit 9 Can you come to my party Section A Grammar Focus-3c课件（共36张PPT）+音频

(共36张PPT)
Section A Grammar Focus-3c
To learn to use “Can you/he/they… ”
to make invitations.
To use the following structure to talk about obligations: I might have to/must…
To learn how to communicate with others politely.
Objectives
Hey, Anna, can you come to my birthday party on Saturday …
Oh, Sam! I remember we went bike riding last fall when …
Review
Can you play chess with me tomorrow afternoon
Sure. I’d love to.
I’m afraid not. I have the flu.
Can Lily take a walk with us
No, she can’t. She must prepare for the exam.
Can you come to my party on Saturday Sure, I’d love to./Sorry, I must study for a math test.
Can you go to the movies tomorrow night Sure. That sounds great.
I’m afraid not. I have the flu.
Can he go to the party No, he can’t. He has to help his parents.
Can she go to the baseball game No. she’s not available. She must go to the doctor.
Can they go to the movies No, they’re not free. They might have to meet their friends.
Grammar Focus
Make two conversations
using “Can.... ”
1.--Can you...
--......(接受）
2.--Can you...
--......(拒绝）
情态动词主要有：may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to
现在我们来着重学习情态动词can 以及
have to 的用法。
其特征主要有：
情态动词 can 的基本用法
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。其具体用法如下:
表示“能、会”指脑力或体力方面的“能力”。如:
I can speak Japanese. 我会讲日语。
Frank can swim but I can’t. 佛兰克会游泳, 但我不会。
2. 表示“可能”，常用于否定句或疑问句中，指某种可能性。例如：
My cousin can’t be in this city. He is in Korea now.
我堂兄不可能在这个城市里。他在韩国呢。
Can he come to our club today, please
请问他今天能来我们俱乐部吗？
3. 表示“可以”，常用于口语中，指许可或请求做某事
Can I ask you a question 我可以问你一个问题吗？
You can bring something to eat. 你可以带些吃的。
can为情态动词, 在本单元中表示请求，用于发出邀请，后跟
动词原形。当同意接受对方的邀请时，常用Sure, I’d love
to. / Certainly. /Of course.等来回答；若不接受，常用Sorry
等来有礼貌地拒绝，一般情况下需要说明不能接受邀请的原
因以表示歉意。
—Can you come to my birthday party tomorrow？
明天你来参加我的生日聚会，好吗？
—Sorry, I can’t. I am going to visit my grandpa.
很抱歉，我来不了，我要去看我爷爷。
can/may
(1)都可表示“许可” 。may用于较正式场合，can比较口语化。
You may/can smoke here.
Borrowers may not take out of the library more than two
books at a time.
The policeman says you can’t park here.
(2) May/Can I/we… 表示征询对方许可。 Can you… 表请求。
① — May I use your phone
— Yes, you may./Yes, please. /No, you may not. /No, you mustn’t. /No, you’d better not. /I’m afraid not.
/I’m sorry. I’d rather you didn’t.
② — Can I go out and play, Mum
—Yes/Certainly, you can. /No, you can’t.
③ — Can you help me with this bag
—With pleasure./Sorry, I can’t.
(3) 都可表示“可能性”
Mr. Reed looks pale. He may be ill. Mr. Read is in poor health.
He can be ill at any time. This news may be true.
(=might/could) Wang Wei can be really stubborn.
Mr. Reed looks pale. He may be ill. Mr. Read is in poor health.
He can be ill at any time.
This news may be true. (=might/could)
Wang Wei can be really stubborn.
(4) can 还可表示“能力”、“能够”
—You can swim, can’t you
—No, I can’t.
I can’t promise anything, but I’ll do what I can.
Tickets can be bought from the Tourist Information Center.
have to 的用法
1. have (has) to + 动词原形
have (has) to 后面要用动词原形。当主语为第三人称单数时用 has to，当句子是过去时用 had to。
We have to go home now.
我们不得不现在就回家。
He has to work on Sunday.
他不得不在周日工作。
I had to do much housework last Sunday.
上周日我不得不做很多作业。
2. have to 的否定句句型：
主语 +don’t/didn’t/doesn’t won’t +have to + 动词原形
You don’t have to walk so fast.
你不必走那么快。
He will not have to buy a new coat next year.
明年他没必要买新外衣了。
3. have to 的疑问句句型：
Do/Does/Did/Will + 主语 + have to + 动词原形
Did he have to ask the question
他非要问那个问题吗？
Yes, he did. 是的。
No, he didn’t (have to). 不。
不能独立作谓语，只能和动词原形一起构成谓语，
表示说话人的语气和情态。
2. 没有人称和数的变化。 (have to除外)
3. 否定形式：在其之后加not (have to除外)
　 疑问形式：情态动词提到主语之前(have to除外)。
3. have to的意思是“必须、不得不”, 往往强调由于客观原因
而必须做某事。 have to 后接动词原形；have to有人称、数和
时态的变化, 其第三人称单数形式为has to, 其疑问形式和否定
形式要借助于助动词do或does来完成。例如：
We have to look after our sister at home.
我们不得不在家照顾我们的妹妹。
Does he have to get up early tomorrow morning
明天早上他必须早起吗？
I don’t have to stay at home today. 今天我不必待在家里。
4. must/have to
must 表示主观“必须”；have to表示客观客观需要，即
“不得不” 。
I don’t like this TV set. I must buy a new one.
This TV set doesn’t work. We have to buy a new one.
You must get up at five tomorrow.
We (will) have to get up early tomorrow.
I had to leave early because I wasn’t feeling well.
She said she must/had to see the manager.
表示邀请的句型: (你能来参加我的聚会吗 )
Can you come to my party
Could you come to my party
Would you like to come to my party
接受邀请:
拒绝邀请:
Sure, I’d love/like to.
I’m sorry, I can’t. I have to…
/I’m V-ing…
小结
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: _______________________________
On the weekend.
My cousin.
No. 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)
Reason: (might have to)
____________________________________
Refusing:____________________________
____________________________________
Would you like to go to the movies
I’m afraid not. I have too much
homework to do.
refuse v. 拒绝 refuse to do sth.
↓
3. Inviting: (can/hang out with us tonight)
Reason: (must)
____________________________________
Refusing: _____________________________
_________________
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.
A: Can you come to my party
B: When is it
A: Next week, on Thursday night.
B: I’m sorry. I have to study for a math test.
3c
What do you usually do on weekends
What activities do you do on weekends
have to … 不得不
A: What do you have to do this weekend
B: I have to…
What weekend activities do you do
Have a talk about your weekend
colorful weekend
activities
go shopping
go skateboarding
play soccer
go to the cinema
Have a talk
colorful weekend
activities
play the piano
climb mountains
go to a party
surf the Internet
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
Thank you!