课程内容

《Can you come to my party?》(Section A Period 2)
birthday party
go to the concert    prepare for an exam
A:Can you go to the concert?
B:I'm sorry,I can't.I have to prepare for an exam.
go to movies    go to the doctor
A:Can you go to the movies?
B:I'm sorry,I can't.I have to go to the doctor.
A: Can he to the movies?
B:No,he can't He has to go to the doctor.
go to the zoo
help my parents
A:Can you go to the Zoo?
B:Sorry,I can't.I have to telp my parets.
A:Can he go to the zoo?
B:No,he can't.He has to help his parents.
play computer games   go to the bakeball game
A:Can you play computer games with me?
B:Sorry,I can't.I have to go to the baseball game.
A:Can he lplay computer games with me?
B:No,he can't.He has to go to the baseball game.
play soccer   watch Tv
A:Can you play soccer with me?
B:Sorry,I can't .I have to watch TV.
A:Can she play soccer?
B:No,she can't.She has to watch TV.
Accept（接受）invitations:
Sure/Yes/Of course,I'd love to.Certainly,I'd like to.
Decline(拒绝)invitations:
I'm sorry,I can't.
I have to look after my grandmother.
I have to study for a math test.
I am going shopping with my friend ……
2d Role-play the conversation.
A:Hey,nick,can you come to my house on Saturday?My cousin Sam from Xi'an is going to be here.
B:Oh,Sam!I remember we went bike riding together last fall when he visited you .
A:Yes,that's right.
B:I'd love to come,but I'm afraid I can't.I have an exam on Monday so I must prepare for it.
A:That's really too bad!Oh,but Sam isn't leaving until next Wednesday.Can you hang out with us on Monday night?
B:Sure!Catch you on Monday!
1.Why is he he having the party?
2.Is this friend Nick coming to the party?
3.Why or why not?
4.What is he doing then?
Explanation
Can you……？意为“你能……吗？”，可用于邀请别人或委婉地请求某人去做某事。其肯定回答常用Sure,I'd love/like to.否定回答常用I'm sorry,I can't./Sorry,I can't.如：
Can you go to the baseball game?
你能去参加棒球比赛吗？
I'm sorry,I can't.
对不起，我不能。
单项填空
Can you help me with my Engiksh this weekend?
Sorry,I (  ).I have a lot of homework to do.
A.can't    B.mustn't   C.needn't     D.don't
答案：A 题意：“请问这个周末你能帮我学习英语吗？”“对不起。我不能，我有很多作业要做”。不能答应他人的请求时常用“（I'm）Sorry,I can't.”。
have to 的用法
情态动词have to 与其他的情态动词如can、may、must和should不同。
（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”。
You/He should study haed.
你/他应该好好学习。
He has to study hard.
他不得不好好学习。
（2）这4个情态动词在一般疑问句中奖它们放在句首，在否定句中直接在他们的后边加not即可。
我们以can为例：
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才能完成其疑问、否定句。
试将下面三种话分别写成
（1）一般疑问句，并作肯定回答。
（2）否定句。
a.They have to go to the party.
Do they have to go to the party?
Yes,the do.
They don't have to go to the party.
b.He has to go to see the doctor.
Does he have to go to see the doctor?
Yes,he does.
He doesn't have to go see the doctor.
c.She had to stydy for a math test yesterday.
Did she have to study for a math yesterday?
Yes,she did.
She didn't have to study for a math yesaerday.
比一比
have to 与most
二者有“必须”之意，但have to 表示“客观上的需要”，有人称和时态变化，否定形式为don't/doesn't/didn't have to（没必要）；must表示“主观上的要求”，无人称和时态的变化，否定回答一般用needn't或don't have to （不必）。mustn't表示“禁止”。如：
We have to wear warm clothes in winter.
冬天我们不得不穿上暖和的衣服（客观需要）
I must finish my homework first before I watch TV.
看电视前我必须先完成作业（主观要求）
You don't have to tell him about it.
你不一定要把此事告诉他。
You mustn't tell him about it.
你一定不要把这件事告诉他。
Must I be home before eight o'clock?
8点之前我必须回家吗？
Yes,you must/No,you needn't./No,you don't have to.
是的。必须回家。/不，不必主。
hae go 不得不   I have to study for a test.
must 必须       I must study hard.
即时练
Bob can't come out to play because he (  )halp Dad in the garen.
A.can     B.must     C.has to      D.have to
答案：C
题意：鲍勃不能出来玩了，他不在花园里帮他爸爸，一脚客观上的需要，应用have to ；句子为一般现在时，主语为第三人称单数，故选C。
I can't give up smoking,doctor.
For your health,I'm afraid you (  ).
A.may    B.can    C.have to    D.must
【解析】选C。may意为“可能、或许”，can意为“能、会”，have to 意为“必须，不得不”，表客观要求，而must表主观愿望。根据题意：为了健康，你必须的戒烟，选C。
Must I finish my homework right now?
No,you (  ).
A.needn't    B.may not    C.mustn't      D.can't
【解析】must 在表示“必须，应该”的时候，其疑问句有否定回答常用needn't或don't have to，表示“不必”而不用must not。根据句意must在名词作“必须”讲，故答案选A。
3a Complete the answers with might and one of the phrases in the box.
watch TV
on the weekend
my cousin
visit grandparents
1.A:What are you going to do on Saturday?
B:I'm not sure,I might Visit my grandparents.
2.A:What are you planning to do after school?
B:I don't know.
I might watch TV.
3.A:When will you finish the science homework?
B:I don't know.I might finish it on weekend.
4.A:Who are you going to the movies with?
B:I'm not sur.I might go with my cousin.
5.Are you free to come to my place on Saturday?
B:I'm not sure.I might have to practice the violin.
3b Complete the sentences below.Use the words in brackets to help you .
1.Niviting:Can you play tennis on Saturday?
（can/play tennis）
Accepting:Sure.That sounds great.
2.Inviting:Wuld you like to go to the movies on friday?(wuld like to /go to the movies)
Refusing:Sorry,I can't.
Reason:I might have to out with my parents.(might have to)
3.Inviting:Can you hang out with us tonight?
(can/hang out with us tonight)
Refusing:Sorry,I'm not free.
Reason:I must study for a test.(must)
4.Inviting:Would you like tocome to my birthday party?(would like to/come to my birthday party)
Accepting:Sure,I'd love to.

Key points
invite v.邀请
①The man invited my father to go fishing with him this morning.
这个男人今天上午手语我爸爸和他一起去钓鱼。
根据句①可知“邀请某人干某事”为invite sb.to do sth.。
②I invited him to my house yesterday.
我昨天邀请他来我家。
根据句②可知invite sb.to后也可跟名词。
③He will not come without your invitation.
没有你的请柬他是不会来的。
根据句③可知inviteq的名词是invitation。
即时练
1.Mr.Green invited me (to visit)(visit)his factory last week.
2.Thanks a lot your (invitation)(invite).But I have to satay at home to do my homework.
3.Thanks for(inviting)(invite)me to your party.
典型例题
He (  )me to come to his birthday party the day before yesterday.
A.invitation     B.invite    C.invited     D.invites
答案：选C。
解析：句意为：前天他邀请我参加他的生日晚会。（1）invite sb.to do sth.“邀请某人做某事”是固定用法，由时间状语确定用一般过去时，故选C。（2）invite sb.to sp.意为“邀请某人到某处”。
Writing
根据提示写一封60！80字的信。Tom邀请Li Ping的父母出差要到下个月回来，姐姐又卧病在床，需要人照顾。再说英语考试即将来临，因此，无法前去参加生日宴会。Li Ping感到很抱歉，只好写信辞谢。
Dear Tom,
Thank you very much for inviting me to your birthday party.I'd love to go but I can't.My parents are out on business.They are coming back next month.And now I have to look after my grandma because she is ill in bad.And I also need to study for my coming Enhlish exam.I'm very sorry but I con't go to your party.Thank you for asking me.I hope you can have a good time.
Yours
Li Ping

REVIEW
Initation:Can you come to my party……？
Acceptation:
Sue,I'd love to.
Yes.I'd love to.
Declination:
I'm sorry,I can't I have to……
I'dove to，but I have to……
Grammar Focus
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're not free.They might have to meet their frends.

单项选择
1.Joe （ B ）go to the doctor.His leg is broked.
A. have to    B.can     C.has to      D.may
2.Can you help me with my English?
Sure,( C ).
A.I'd like    B.I'd love    C.I'd love to      D.I have to
3.Thanks a lot for ( D )me( D )your party.
A.invite；for    B.invite；to   C.inviting；for   D.inviting；to
4.Sorry,I'm busy today.I have ( B )homework to do.
A.much too    B.too much    C.too many   D.many too
句型转换
1.I have to study for a test this evening.（改为否定句）
I don't have to study for a test this evening.
2.They can go to the concert.（改为一般疑问句）
Can they go to the concert?
3.Can Mary to go your birthday party?（作否定回答）
Sorry/No,she can't.
情景对话
1.Can you go to the mall this week?
Sure,I'd love to.
2.What are you doing on Thursday afternoon?
I am going to the doctor.