（1 ）it's too late. she _____ _____ go there by bus.(不得不)

（2）i have to clean the room right now.(改为否定句)

i ____ _____ _____ clean the room right now.

after listening

1 如果主人向你们发出邀请，你们能参加他的聚会吗？四人一组，表演对话。

2 本周末你打算干什么？miss lin 邀请大家去参加音乐会，谁愿意去？同伴互相问答，

参考句型：

a: hey , can you come to the concert on saturday?

b: i'm sorry , i can't .i have to...

a: that's too bad. maybe another time.

b: how about you ?

四．知识巩固

i 用所给词的适当形式填空

1_______you play tennis? yes , i can.

2.mary is ill , she ___ (have)____ (go )to the doctor.

3.look! some people ____ (take) photos here.

4.thanks for ____ (cook) for me .

5.she often ____ (help) me with my english .

ii 完成下面的句子

1---hi , jeff. can you come to my party on saturday?

---- i'm sorry ,i can't .i ____ ____ ____ ____ ____ (得去看我的阿姨)on saturday .

2 --- hello, marry. can you come to my party on saturday?

----_____ _____ ______（我愿意）

3 ---may lee ,can you come to my party tomorrow?

--- i'm sorry i____ ___ ＿＿＿＿ ＿＿＿ ＿＿＿＿（得帮我妈妈）

4 --- claudia, can you come to my party on saturday?

---- i'm sorry ,i____ ____ ____ ____ ____ (要去看电影)

5.---hey, paul._____ _____ ____ to my party____ ____?(周六你能来参加我的聚会吗？)

---- i'd love to .

五．课堂反思: