2013年公共英语等级考试四级模拟练习（17）

　　1. Everyone is busy _____ the examination in the classroom.

　　A. with B. for C. on D. under

　　答案： A

　　解析： 注意几个固定搭配： be busy (in) doing sth 忙于做…; be busy with sth 忙于…; busy oneself (in) doing sth 忙于做……; busy oneself with sth 忙于……。

　　2. I suppose you couldn’t let me borrow your car this evening, _____?

　　A. couldn’t I B. don’t I

　　C. could you D. will you

　　答案：C

　　解析：suppose 后面的从句中为否定式couldn’t，而主句为肯定式，这是否定后移的用法，后面的反意疑问句要根据从句而定，故反意疑问句用肯定式could you。

　　3. Smoking is not good _____ you because it can affect your health.

　　A. for B. at C. to D. on

　　答案： A

　　解析： be good for… 对…有好处; be good at… 善长于…。

　　4. Henry and Bady _____ to the parties at the Trade union every Saturday.

　　A. are used to go B. use to go

　　C. used to go D. were used to go

　　答案： C

　　解析： be used to do… 被用于做…; used to do… 过去常常…。

　　5. _____ , the inhabitants fled.

　　A. The city taken B. The city having been taken

　　C. Having taken the city D. The city being taken

　　答案： B

　　解析： 独立主格结构。