Passive Voice被动语态英语动词有两种语态：主动语态和被动语态。 1. 当我们不知道谁是动作的执行者 , 2. 或者只需强调动作的承受者时，要用被动语态。被动语态结构：be + 过去分词 (PP) + (by …)在改写中应注意：1. 把原原来的宾语宾语提到前面作被动语态的主语主语 ;;2. 把动词变成“ be + be + 过去分词过去分词” ;3. 主动语态中的主语主语变为介词 byby 的宾语宾语。。表格：被动态基本结构时态被动语态结构一般现在时一般过去时现在进行时过去进行时一般将来时过去将来时现在完成时过去完成时am/is/are donewas/were doneam/is/are being donewas/were being doneshall/will/be going to be donewould be donehave/has been donehad been doneSome people attacked the towers. S V O The towers were attacked S V by some people.Oral practice- 主动句改被动句 Oral practice--1. Change each sentence into passive voice:1) A car knocked him down yesterday.2) Two doctors and ten nurses make up the medical team ．3) When I got there, they were cutting up a fallen tree ．•He was knocked down by a car yesterday ．•The medical team is made up of by two… ．•A fallen tree was being cut up, when I got there.4)We’ll put on the play next Sunday ．5)Workers are building a new teaching building in our school ． 6)They had completed the railway by the end of last year ． •The play will be put on next Sunday ．•A new teaching building is being built by workers in our school ．•The railway had been completed by the end of last year ． 7)We should protect the earth ．8)You need to paint the wall ．•The earth should be protected ．•The wall needs to be painted ．几种特殊结构 1.My uncle gave me a gift on my birthday ．2.We often hear him play guitar ．•I was given a gift on my birthday ．•A gift was given to me on my birthday.•He is often heard to play guitar•注意： see,watch,hear,n...
