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Unit 9 Can you come to my party?. Section A Grammar Focus. Studying Aims. Learn 10 important phrases. Can for invitation. Use modal verb. have to Be+V-ing shows action or plan in the future. REVISION. .prepare for an exam .go to the doctor .have the flu .help my parents

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Unit 9 Can you come to my party?

Section A Grammar Focus

Studying aims
Studying Aims

  • Learn 10 important phrases.

  • Can for invitation.

  • Use modal verb. have to

  • Be+V-ing shows action or plan in the future


  • .prepare for an exam

  • .go to the doctor

  • .have the flu

  • .help my parents

  • .meet my friend

have the flu

help my parents

meet my friend

prepare for an exam

go to the doctor


Can she come to the party?

Yes,she can.

Can he go to the baseball game?


He has to study.

Can he…

Can they come to the party
Can they come to the party?

Can they…

No ,they can’t.They have to study for the math test.

A: Can your mother go to the concert?

B: When is it?

A: It’s on Saturday evening.

B: Sure/ Yes/ Certainly, she’d love to.

B: No, she can’t. She is doing housework.

She has to babysit my sister.

She has a party with her friends.

your mother


Monday evening

do housework

babysit my sister

have a party with

her friends

A: Can they play football with us?

B: When is it?

A: It’s on Sunday afternoon.

B: Sure, they’d love to

Yes, they can.


play football

Sunday afternoon

have an English test

visit their teachers

do homework

B: No, they can’t. They have an English test.

They are visiting their teachers.

They have to do their homework.

Accept Invitations:

Sure/Yes/Of course, I’d love to.

Certainly, I’d like to.

Decline invitations:

I’m sorry, I can’t. I have to look after my grandmother.

I have a piano lesson.

I am going shopping with my friend.


help my parents/ visit my aunt/ play football/ study for the English test/have a piano lesson/ go to the mall/ babysit my sister/ do homework/go to the movies/ go to my guitar

lesson/ watch a football match/play tennis/ go to the doctor/ surf the Internet/ go fishing/ relax at home

Complete these sentences

  • 1.I have to study A. a piano lesson at 3:00.

  • 2.You should B. my aunt.

  • 3.I have C. go to the doctor.

  • 4. I should help D. for a test.

  • 5. I have to visit E. my parents.

Daily Exercises


-- Can you come to my party?

-- I’m sorry I can’t. I _________________.

  • 1. have to go to my guitar lesson

  • 2. have to go to play soccer

  • 3. have too much homework

  • 4. have to go to the doctor

  • 5. have to study for a test

  • 6. have a piano lesson

  • 7. have to go to my cousin’s birthday party

  • 8. am not feeling well

巩固词组(Ask and answer in pairs)

  • Can you come to my party?

  • Sorry,I can’t. I have to_________.

  • 1.为考试而学习

  • 2.看医生

  • 3.上钢琴课

  • 4.帮助我的父母亲

  • 5.拜访我的姑姑

study for a test

go to the doctor

have a piano lesson

help my parents

visit my aunt

3a Complete the answers with might and one

of the phrases in the box.

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.

3. A: When will you finish the science


B: ____________________________________

4. A: Who are you going to the movies with?


5. A: Are you free to come to my place on



On the weekend

My cousin

No. I might visit grandparents .

  • 3b Complete the sentences below. Use the

  • words in brackets to help you.

  • Inviting: (can / play tennis)

  • ________________________________________________

  • Accepting:________________________2. Inviting: (would like to/ go to the movies)

  • Reason:(might have to)

  • ______________________________

  • Refusing :

Can you come to play tennis?

Sure, that sounds great.

would you like togo to the movies?

I’m afraid not. I have too much


3. Inviting: (can/hang out with us tonight)

Reason: (must)


Refusing: _____________________________

4. Inviting: ( would like to / come to my

birthday party)



homework to do.

Can you hang out with us tonight?

No, I can’t. I must finish my homework.

Would you like to come to mybirthday party?

Sure, I’d love to.

3c 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.

colorful weekend activities

go skateboarding

go to the cinema

go shopping

play basketball

surf the Internet

climb mountains

go fishing

go to a party

Weekend Activities

go to the concert

study for a test

have a piano lesson

go to a baseball game/

have baseball training

visit his aunt

go to the doctor

What do you usually do on weekends?

What activities do you do on weekends?

What weekend activities do you do?

have to … 不得不

A: What do you have to do this weekend?B: I have to…

study for a test

go to the doctor

have a dancing lesson

Grammar focus

情态动词主要有:may/might, can/could,

must, have to, shall/should, will/would,

ought to, need, dare, used to。


have to的用法。


1. 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)。

can 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。为情态动词, 在本单元中表示请求,


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


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。Can you come to my birthday party



—Sorry, I can’t. I am going to visit my



1. can/may 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。

  • 都可表示“许可” 。may用于较正式、客气的场合,而can比较随便(口语)。

    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) 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。May/Can I/we…? 表示征询对方许可。

Can you…? 表示请求。

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. 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—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 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。may be ill.


Mr. Read is in poor health. He can be ill at any time. (逻辑、理论上的可能)

This news may be true. (=might/could)


Wang Wei can be really stubborn.


否定句 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。

This news may not be true.

(也许不, =might not )

This news can’t be true.

(不可能, =couldn’t)


Can this news be true?(=Could)

≠May this news be true?

(4) can 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。还可表示“能力”、“能够”

—You can swim, can’t you?

—No, I can’t.

I can’tpromise anything, but I’ll do what I can.

Tickets can be bought from the Tourist Information Center.

2. might/could 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。

  • 分别为may和can的一般过去时,分别表示过去的“许可”、“可能”和“能力” 、“能够”等。

    The children asked whether they could/might go for a swim.(过去许可)

    I was afraid it might rain that afternoon.


    He asked if the news could be true.

    (过去可能)(Can the news be true?)

She said he 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。could speak several languages. (过去能力)

I couldn’t find her telephone number.


(2) 都可表示现在或将来的“可能性”。语气没有may肯定。

①—There’s someone at the door.

—It could/might(=may) be George. (肯定句)

/It 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。couldn’t (=can’t) be George.(否定句)

/Could(=Can) it be George?(疑问句)

② According to the radio it could/might/ may rain tomorrow.

③ Lightning could (=can) be dangerous.

(3) Might/Could I/we …?

Could you …?

表示更委婉 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。、更客气的请求。

① —Might/Could I ask you one more question?

—Yes, of course you may/might/can/ could.

② —Could you help me with these boxes?

—Of course I can./With pleasure.


—I wonder if I could/might leave now.

—I don’t suppose you could/might.

3. can/be able to有时在陈述句中也表示更委婉、更客气的请求或邀请:

  • can= am/is/are able to

    = shall/will be able to

    ① No one can do it.

    =No one is able to do it.

    ②Can you come tonight?

    =Will you be able to come tonight?

(2) could 有时在陈述句中也表示更委婉、更客气的请求或邀请:表示过去的技能、本能; was/ were able to 表示过去某一具体场合经过努力而做成某事。

① I could swim when I was six.

② He started late, but he was able to catch the eight o’clock train.

=…but he managed to catch …

=…but he succeeded in catching …


③Mr. Smith couldn’t/wasn’t able to see you because he’s got a bad cold.

(3) be able to还有完成式和非谓语形式。

① I’m sorry I haven’t been able to answer your letter.

=I’m sorry for not being able to answer your letter.

② To be able to run is very important for a footballer.

4.有时在陈述句中也表示更委婉、更客气的请求或邀请: have to的意思是“必须、不得不”, 往往


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


We 有时在陈述句中也表示更委婉、更客气的请求或邀请:have to look after our sister at home.


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.


情态动词“有时在陈述句中也表示更委婉、更客气的请求或邀请:have to”与其他的情态动词

如“can”, “may” “must”和 “should”


1) 这4个情态动词没有人称的变化,

而have to有, 它的第三人称单数

为“has to” 如:

He should study hard.

He has to study hard.


在句首, 在否定句中直接在他们后边加not即可。


--Can he go with us? 他能和我们一起去吗?

--He can’t go with us. 他不能和我们一起去。

而“have to”要加助动词do , does或did才


5. must/have to 有时在陈述句中也表示更委婉、更客气的请求或邀请:

  • 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. 有时在陈述句中也表示更委婉、更客气的请求或邀请:

We (will) have to get up early tomorrow —we’re going to Devon. (future)

I had to leave early because I wasn’t feeling well.

She said she must/had to see the manager.


Task 有时在陈述句中也表示更委婉、更客气的请求或邀请:总结

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?



Sure, I’d love/like to.

I’m sorry, I can’t. I have to…

/I’m V-ing…

Exercise 有时在陈述句中也表示更委婉、更客气的请求或邀请:

  • 一、选择正确的词

  • Thank you for(ask/ asking), but I can’t go to the movies with you.

  • Paul has to study(at/ for) the math test tonight.

  • My sister has too(much/ many) homework to do.




4. Can you come to my party有时在陈述句中也表示更委婉、更客气的请求或邀请:(at/ on) Saturday night?

5. She invites me(watch/ to watch) the basketball match the day after tomorrow.

6. I like playing(piano/ the piano).


to watch

the piano

有时在陈述句中也表示更委婉、更客气的请求或邀请:. 对话填空。每空一词,单词的首字母已给出。

A: Hey, Xiao Wang, can you go to the

m_______ on Saturday?

B: I’m s______, I can’t. I have too much

h_________ this weekend. And I’m not

f_________ well today.

A: That’s too b____. What’s the matter?






B: I’m not sure. Maybe I have a c______, as 有时在陈述句中也表示更委婉、更客气的请求或邀请:

I’m feeling a little cold.

A: I think you’d b_____ go to the d_______.

B: I also t______ so.

A: Maybe I’m asking you to come another


B: Sure. T______ for asking.







1. Can you play tennis withon Saturday ?

A. us B. we C. our D. ours

2. Henryhis homework this afternoon.

A. have to do B. have to doing

C. has to do D. has to doing

3. Tony is playing tennisthe school team.

A. on B. in C. to D. with

4. Jimplay soccer with his friend this

weekend, because he is very busy.

A. can B. cans C. cann’t D. can’t





5. -有时在陈述句中也表示更委婉、更客气的请求或邀请:?

-It’s October the 14th.

A. When is today B. what’s today

C. What time is today

D. What day is today

6. He iswith his father the whole day.

A. fish B. fishes

C. to fish D. fishing



7. –Can you come to my party?有时在陈述句中也表示更委婉、更客气的请求或邀请:


A: Sure, I love

B: Sure, I love to

C: Sure, I’d love to

D: Sure, I’d love.


8. ---Would you like to play football with us?有时在陈述句中也表示更委婉、更客气的请求或邀请:

---____________, but I’m busy.

A. No, I can’t B. No, I wouldn’t

C. Yes, I’m glad D. Yes, I’d love to

9. ---___________I take the newspaper away?

---No, you mustn’t. You ______ read it only here.

A. Must; can B. May; can

C. Need; must D. Must; must




Write an invitation based on the following information.

It’s a Birthday Party

For whom :


Friday,June30,at four hirty

Time :

Place :

Lisa’s house ,15th Street

Come and have fun!

Thank You!有时在陈述句中也表示更委婉、更客气的请求或邀请: