4. 自读1a对话，并完成1b。组内交流，并展示答案。(三分钟完成)

3. 表演(或朗读对话)，组内合作释疑并提出问题。

2. 分角色读1a的对话，并找出对话中的重点短语和句子。(五分钟完成，并组内交流)

1. 听录音两遍，回答问题：1) What behavior may cause sandstorms? ____________________

2) What can keep water from running away? _______________________________

8. There is ________ with my computer. It doesn’t work.

v　　　 认定目标：师生共同认定。

v　　　 自主探究：

7. ________ parents have been abroad .

A. The both of his　 B. His both　 C. The both of　 D. Both of his

6. All the students have gone on a field trip. There is _______ in the classroom.

A. somebody　 B. anybody　 C. everybody　 D. nobody

5. You can borrow my CD player, but you mustn’t lend it to _______.

A. others　　 B. other　　 C. the other　 D. the others

4. I have four friends. ______ of them are workers.

A. Both　 B. All　 C. Many　 D. Each　

3. They were always together. He saw _______ she saw.

A. anything　　 B. everything　 C. something　 D. nothing