1. I’m free. I have ______ to do.　 A. something　 B. anything　 C. everything　 D. nothing

7. If the factory pours waste water into the rivers, we must ________　 ________(切断)their water supply.

v　　　 归纳总结：(学生自己总结)

v　　　 达标测评：一、单项选择。(五分钟完成，并交流答案)

6. Pollution is bad for ________　 __________(人类)。

5. He went shopping _________　 _________(刚才)。

4. Do you know the i___________ of studying English?

3. Reading in bed is h_________ to our eyes.

2. We must pass a l_________ to against the pollution.

1. A___________ it is raining now, they still go out for a walk.

6. 谈论保护和节约用水的方法，完成2。并组内交流成果，展示。(五分钟)

v　　　 题组训练：根据首字母或汉语提示补全单词，完成句子。

5. 组内合作，完成1c，交流答案。