题目内容
3. 从那以后，人口增长率已经下降了 40%以上。
Since then,the population growth rate more than 40 percent.
3. has fallen by
5. (2013 •无踢) Ice is not often seen here in winter as the temperature normally stays zero.
A. up B. down C. above D. below
I.英汉互译，了解本课重点短语
1. 参加
2. 关掉
3. 付费;付出代价
4. 食物链
3. Other classmates want to use public t ，
but I think riding a bike to school is good for my health.
6. The dictionary cost me 20 yuan.(改为同义句)
I 20 yuan the dictionary.
3.
①Before you leave the room,please the light.
A. turn on B. turn off
C. turn up D. turn down
②I want to watch the basketball match. Would you please the TV?
C. turn down D. turn up
5. Around the world,more and more people are dangerous sports activities.
A. taking out B. taking off
C. taking part in D. taking care of
5. I think we would never (do) harm to the animals.
5. 旧房子被推倒后，新的楼房就建起来了。
After the old houses ,the new buildings were built.
