Passive Voice被动语态 双子楼图The twin towers ___________ (attack) in 2001 ．were attacked 生病图The boy may _______________ (infect) with AIDS ．have been infected 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 donewould be donehave/has been donehad been done Some 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… ．•The medical team is made up of… ．•A fallen tree was being cut up… ． 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… ．•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 ．•I •A gift2.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 。 We should take care of the old people .The old people should be taken care of. 主动式表被动义The books _...
