I.单项填空

1. —Why does the lake smell terrible?

—Because large quantities of water .

   A. have polluted   B. is being polluted

   C. has been polluted   D. have been polluted

3. We are strongly against (用动物做实验) .

4. This new book (出版了)last month.

5. His aim is (挣更多的钱) .

II.完成句子

1. (少量的作业) is necessary to the teenagers.

2. Li Ping (被她奶奶抚养大) .

课后作业

I.选词填空

in quantity;by accident;make a breakthrough;be converted to;as a result (of)

1. The mother hurt her finger when cutting vegetables.

2. Fishes of many kinds in this river are fast disappearing the heavy pollution.

3. It's cheap if you buy goods .

4. Doctors on this subject so far.

5. In some condition,coal can gas.

5. The driver's careless driving led to the serious accident.

4. Mr Black will take the place of Jack as our manager.

3. It's obvious that you are for the programme.

2. We didn't know who came up with the plan.

II.替换画线部分

1. Tom was so clever that he worked out the problem.

8. His work is good in respect of quality but bad in respect of (数量) .