(   ) 4. A little wine will not be      to your health. Just don't drink too much.

   A. helpful   B. helpless   C. harmful   D. harmless

(   ) 3. ―The classroom is so bright now. You should       the lights.

      —OK,I will.

   A. turn on   B. turn up   C. turn down   D. turn off

(   ) 2. The zoo keeper is worried because the number of visitors        smaller and smaller.

   A. become   B. are becoming

   C. is becoming   D. have become

(   ) 1.      you ever      Zhang Lili,the most beautiful teacher?

   A. Have;hear of   B. Did;heard of

   C. Have;heard of   D. Does;hear of

5. The car is so expensive that I can't      (买得起) it.

4. No       (科学的) studies have shown that shark fins are good for health.

3. In our country,        (工业) is developing very fast.

2. Throwing litter about is really        (有害的) to the environment.

1. Killing animals is very        (残酷的) ，so people must stop doing that.

14. environmental protection