Unit 9 Can you come to my party?Section A grammar-3a 课件 2022-2023学年人教版八年级英语上册 (共19张PPT)

(共19张PPT)
Unit 9
Unit 9
Can you come to my party
Section A 2
Grammar focus-3c
Can you play tennis with me tomorrow afternoon
Sure. I’d love to.
I’m afraid not. I have the flu.
Practice the following conversations.
Can Kate go fishing tomorrow morning
No, she can’t. She must prepare for the math exam.
Can Linda hang out on Saturday afternoon
No, she’s not available. She has to help her mom.
Can Nick and Peter go hiking tomorrow
No, they are not free. They might have to visit their grandparents.
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
1. --Can you come to my party on Satuday afternoon
--Sure, I’d love to.
can 是_____动词，除了表示能力， 许可或猜测之外，在本单元中表示_________。 can 没有______ 和________ 的变化，其否定形式是________; 过去时态为__________
当用can来向别人发出邀请时，要用一般疑问句形式，
其句式为______________________________.
表示接受邀请时，可以说：
表示谢绝邀请时，可以说:
探 究
情态
邀请
人称
单复数
can’t
Can you+V.原形...
Sure, I’d love to.
Sorry, I can’t. I have to....
I’d love to, but....
could
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。
1. “能、会”, 表示“能力”(有时态的变化)
I can speak English.
我会讲英语。
Jim can swim but I can’t.
吉姆会游泳, 但我不会。
Jim could swim when he was young.
Jim小的时候会游泳。
can/be able to　
can= am/is/are able to
= will be able to
① No one can do it.
=No one is able to do it.
② Can you come tonight
=Will you be able to come tonight
2. 表示推测“可能”, 常用于否定句或疑问句中, 指某种可能性。
Tom can’t be in the classroom.
Tom不可能在教室里。
Can he come here today, please
请问他今天能到这里来吗？
3. 表示“可以”, 指许可或请求做某事。
Can I have a cup of tea, please
请问我可以喝一杯茶吗？
You can go out. 你可以出去了。
have to 的用法
1. have (has) to + do
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 leave now.
我们不得不现在就离开。
He has to work on Sunday.
他不得不在周日工作。
I had to do my homework last Sunday.
上周日我不得不做作业。
2. have to 的否定句句型：“某人不必...”
...don’t/didn’t/ doesn’t/won’t +have to do
You don’t have to walk so fast.
你不必走那么快。
He won't 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：“某人必须...吗？”
Do/Does/Did/Will + 主语 + have to do
watch TV, on the weekend, my cousin,
visit my grandparents, practice the violin
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. ________________.
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: ________________________________________.
3a
Complete the answers with might and one of the phrases in the box.
visit my grandparents
I might watch TV
I don’t know. I might finish it on the weekend
I’m not sure. I might go with my cousin
I’m not sure. I might have to practice the violin.
1. invite (inviting) v. 邀请
invite sb to do sth 邀请某人做某事
invite sb to sw 邀请某人到某地
They didn’t accept his money.
他们没有接受他的钱。
2. accept (accepting) v. 接受
3. refuse (refusing) v. 拒绝
refuse to do sth 做某事拒绝
I refuse to help Tom.
1. Inviting: (can / play tennis)
___________________________________
Accepting:________________________
2. Inviting: (would like to/ go to the movies)
Reason: (might have to)
______________________________
Refusing :_____________________________
Reason: _______________________________
Can you come to play tennis
Sure, that sounds great.
Would you like to go to the movies
I’m afraid not.
I might have to go to the doctor.
plete the sentences below. Use the words in brackets to help you.
3. Inviting: (can/hang out with us tonight)
Reason: (must)
____________________________________
Refusing: _____________________________
4. Inviting: ( would like to / come to my
birthday party)
______________________________________
Accepting:______________________________
Can you hang out with us tonight
Would you like to come to my birthday party
No, I can’t. I must finish my homework.
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
MON. I have to...
TUE. I must...
WED. I might have to...
THUR. ...
FRI.
SAT.
SUN.