职称英语考试理工类基础词汇练习题(3)

　　一、被动语态的基本用法

　　请在下面各题的选项中选出一项符合题意的正确答案。

　　1. Did you have anyone __ the trees?

　　Yes, I had the trees __.

　　A. to water, water

　　B. to water, watered

　　C. water, to be watered

　　D. water, watered

　　2.A new bridge __ over the river now.

　　A. is built

　　B. is building

　　C. is to be built

　　D. is being built

　　3. My dictionary __ anywhere. Somebody must have taken it by mistake.

　　A. cant find

　　B. cant be finding

　　C. cant be found

　　D. cant be find

　　4. The moon has already __ by man.

　　A. visited

　　B. visiting

　　C. been visited

　　D. being visited

　　5. __ this kind of questions often __ in class?

　　A. Does, ask

　　B. Is, asked

　　C. Has, asked

　　D. Will, ask

　　参考答案： 1. D 2. D 3. C 4. C 5. B