英语中有两种语态，主动语态（Active Voice）和被动语态（Passive Voice），主动语态表示主语是动作的执行者，被动语态表示主语是动作的承受者，即行为动作的对象。
语态-Voice
1、一般现在时
主动结构：主语+do/does+其他
被动结构：主语+am/is/are done+其他
主：Many people speak English.
被：English is spoken by many people.
主：We clean our classroom everyday.
被：Our classroom is cleaned by us everyday.
2、一般过去时
主动结构：主语+did+其他
被动结构：主语+was/were done+其他
主：He bought his children some pens.
被：Some pens were bought for his children by him.
主：The children gave the foreign guests a warm welcome.
被：The foreign guests were given a warm welcome by the children.
3、一般将来时
主动结构：主语+will do+其他
被动结构：主语+will be done+其他
主：Everyone will know the truth soon.
被：The truth will be known by everyone.
主：We will build several big modern power plants in our city.
被：Several big modern power plants will be built in our city.
4、现在进行时
主动结构：主语+be doing+其他
被动结构：主语+am/is/are being done+其他
主：Mary is making a doll.
被：A doll is being made by Mary.
主：The workers are repairing the main building of Shanghai Jiaotong University.
被：The main building of Shanghai Jiaotong University is being repaired by the workers.
5、过去进行时
主动结构：主语+was/were doing+其他
被动结构：主语+was/were being done+其他
主：They were carrying the injured player.
被：The injured player was being carried by them.
主：He was fixing my car at six yesterday.
被：My car was being fixed by him at six yesterday.
6、现在完成时
主动结构：主语+have done+其他
被动结构：主语+have been done+其他
主：He has received the letter.
被：The letter has been received by him.
主：We have studied English for 3 years at school.
被：English has been studied by us for 3 years at school.
7、过去完成时
主动结构：主语+had done+其他
被动结构：主语+had been done+其他
主：They had built ten bridges.
被：Ten bridges had been built by them.
主：They had produced 100 tractors by the end of last year.
被：100 tractors had been produced by the end of last year.
8、将来完成时
主动结构：主语+would do+其他
被动结构：主语+would be done+其他
主：I did not say that we would change the equipment.
被：I did not say that the equipment would be changed.
主：He said he would finish the work soon.
被：He said the work would be finished by him soon.
9、情态动词的被动语态
主动结构：主语+情态动词+do+其他
被动结构：主语+情态动词+be done+其他
主：We must keep this inmind.
被：This must be kept inmind.
主：We can put the refrigerator in that place.
被：The refrigerator can be put in that place.
主：We shall take more measures to prevent corrosion.
被：More measures will be taken to prevent corrosion.
主：We shall not use the washing machine again.
被：The washing machine will not be used again.
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