他开往美国。

Summary

Summarize the tenses of passive voice according to the following chart.

一般现在时的被动语态 一般过去时的被动语态 一般将来时的被动语态 现在完成时的被动语态 现在进行时的被动语态 do write Answers: is/are done was/were done will be done has/have been done is/are being done is/are written was/were written will be written has/have been written is/are being written

Some exercises to practice the grammar

1.I am sorry,sir.Your recorder isn't ready yet.It ___in the factory.

A. is being repaired B.is repaired C.has been repaired D. hasn't repaired

2.Some measures _____to protect wildlife resources.

A.are taking B,are taken C. are being taken D.being taken

3.-Have you moved into the new house?

-Not yet.The room______.

A.are being painted B. are painting C. are painted D. are being painting

4.A new building____ at the other side of the street.Work started last year and the building is expected to open next year.

A.is built B.is being built C. has built D. will be built

5.It is well known to us that a lot of rivers______by the factories.

A.are polluting B.have been polluting C.are being polluting D. are being polluted

6.-Look!Everythig here is under construction.

-What's the pretty small house that_____still ____for?

A.is;being built B.has; been built C.is; built D.is; been built

7.-Do you like the materil?

-Yes,it____very soft.

8.A new cinema___here.They hope to finish it next month.

A. will be built B.is built C. has been built D.is being built

9.-It is said that another new car factory______.

-Yeah.It _______for nearly two months already.

A.is building;has been built B. is built ;has built

C.is being built;has been built D.is being built;has been being built

10.With the development of science,more new technology_____ to the fields of IT.

A.has introduced B. is being introduced C.is introduced D.was introduced

Answers；ACABDCACDDB