4. less　　　　　　 5. smaller

5. In modern society, people ________ increasingly busy ________ (过……生活).

Key：

Unit 3

4. You should go out to play ________ ________ (而不是) just studying indoors.

3. People have cut down too many trees. ________ ________ ________ (结果), the environment is getting worse and worse.

2. Many ________ (疾病) are caused by bacteria (细菌).

1. Eating regularly is as important as having ________ ________ ________ (健康的饮食).

5. The letter from his parents was short. There wasn’t 　　　　news.

A. many　　　　 　 B. a few 　　　　　　　 C. much　　　 　　　 D. few

4.　 -Were you often late for school last term, Tom?

-_____. I got to school early every day.

A. Always　　 　　　　　　 B. Usually　 　 C. Sometimes 　　　 D. Never

3.　 -Can you catch what the foreign teacher said just now?

-Sorry, I can ______ understand it.

A. hardly　　　　 B. almost　　　　 C. nearly　　　　 D. never

2. He likes sleeping with the windows ______ to keep the air ______.　

　 　　　　　 A. open; fresh　　　　 B. open; freshly　　 C. close; fresh D. close; freshly