各种时态的被动语态举例与专项练习（无答案）

各种时态的被动语态举例（以动词do为例） 　1．一般现在时（am/ is/ are +done） 　English is spoken by lots of people in the world. 世界上的许多人都说英语。 　Class meeting is held every Thursday. 每周四都举行班会。 　The classroom is cleaned by the students every day. 学生们每天都打扫教室。 　2．一般过去时(was/ were +done) 　The cup was broken by the boy. 杯子被那个男孩打碎了。 　He was saved at last. 他最终获救了。 　My bike was stolen. 我的自行车被偷了。 　3．一般将来时与过去将来时(will/ shall be +done; would/should be +done) 　A speech will be given this afternoon. 今天下午有一个演讲。 　A new road will be built next year. 明年要修一条新马路。 　I thought thousands of people would be helped. 我认为将有数千人得到帮助。 　4．现在进行时与过去进行时(am/ is/ are being +done; was/ were being +done) 　The machine was being repaired at this time yesterday. 昨天这时，机器正在被修理。 　The problem is being discussed now. 问题正在被讨论。 　A bus is being pushed by the passengers. 路人正在推一辆公共汽车。 　5．现在完成时(have/ has been + done) 　Two hundred trees have been planted by now. 到现在为止，已经种了二百棵树了。 　The book has been read many times by me. 这本书已经被我读了许多遍了。 　6．过去完成时(had been+done) 　They