unit3(被动语态讲解)可以看看.ppt

Passive Voice被动语态 Some people speak English.. S V O English is spoken S V by some people. We should take care of the old people . The old people should be taken care of. * * 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.把原来的宾语提到前面作被动语态的主语; 2.把动词变成“be + 过去分词”; 3.主动语态中的主语变为介词by的宾语。 表格：被动态基本结构 过去完成时 现在完成时 过去将来时 一般将来时 过去进行时 现在进行时 一般过去时 一般现在时 被动语态结构 时态 am/is/are done was/were done am/is/are being done was/were being done shall/will/be going to be done Was/were goingto/would be done have/has been done had been done Oral practice-主动句改被动句 Oral practice--1. Change each sentence into passive voice: A car knocked him down yesterday.(knockdown(击倒、撞倒） Two doctors and ten nurses make up the medical team． 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 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,notice,feel,make, listen to, look at等动词/短语后作宾语补语的不定式都不带to；但改成被动语态后必须带to。 1。动词 (表示主语的属性特征) + 副词 (well/ badly/easily/smoothly),用主动式表被动义。 read,write,sell,wash,clean,wear,lock, open,cook,shut,dry,eat,drink,… The books ____ well． A. were sold B. sell C. have sold D. are bein