一、基础巩固
Ⅰ. 英汉互译。
1. 出生时
2. 绊倒
3. 就我所知
4. 大约
5. up to
6. walk into
7. take in
8. in the face of

1. at birth
2. fall over
3. as far as I know
4. or so
5. 到达（某数量、程度等）；由……决定
6. 走路时撞着
7. 吸入；吞入（体内）
8. 面对（问题、困难等）

1. Children under six can't play the game alone. They should be accompanied by an .
2. It's very important for everyone to the environment.
3. Yuan Longping spent his whole life doing research into rice, and his will be remembered by us forever.
4. The swimming pool is two meters .
5. They aren't interested in modern history. They are interested in history.

1. adult
2. protect
3. achievement
4. deep
5. ancient

Ⅲ. 用所给单词的适当形式填空。
1. The white bike is than the red one.
2. Tom is than any other student in his class.
3. The air in the countryside is than that in the city.
4. Tom is becoming in math this term.
5. Mandy is of the three girls in the picture.
6. This building is five times than that one.
7. Mrs. Black looks much in her new dress.
8. He is one of the volleyball players in the world.

1. cheaper 2. more careful 3. fresher 4. more interested 5. the shortest 6. taller 7. younger 8. best