1、The Passive Voice 被动语态,英语中动词有主动语态和被动语态两种语态。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， 在被动语态中动作的执行者有时用by短语表示出来。,各种时态的被动语态构成,一般现在时： 一般过去时： 一般将来时：情态动词：过去进行时现在完成时：,S+ am/is /are + done,S+can/may/must/should+be+done,S+ will + be + done,S+ was/were + being+ done,S+ have/has + been+ done,S+ was/were + done,各种时态的被动语态
2、构成,一般现在时的被动语态,1. the present passive voice 结构：am / is / are + 过去分词 e.g. Tom breaks the beautiful kite. The beautiful kite is broken by Tom.,一般过去时的被动语态,2.the past passive voice 结构: was / were + 过去分词e.g. Our ancient people built the Great Wall. The Great wall was built by our ancient people.,一般将来时的被动语
3、态,【含义】表示将要发生的被动动作，后常跟表示将来时的时间状语。【结构】? ? ?,Summing up,shall / will + do,be + p.p.,Shall / will + be + p.p.,shall只用于第一人称，will可用于所有人称,People will punished you if you cut downa tree.,You,will be punished,(by people),if you cut down a tree.,These bottles will be recycled to make new things (by people).,S
4、ome clothes will be sold in charity shops.,More trees will be planted by the government.,People will recycled these bottles to makenew things.,People will sell some clothes in charity shops.,The government will plant more trees.,Amy can take good care of Gina ,Gina can be taken good care of by Amy.,
5、情态动词的被动语态： S+ can/may/must/should + be+过去分词,1.He can take care of the baby.2.Lucy may draw the pictures.3.You must turn off the lights.4.They should learn English well.,The baby can be taken care of by him.,The picture may be drawn by Lucy.,The lights must be turned off by you.,English should be lea
6、rned well by them.,She waters the flowers every day.,The flowers,every day.,are watered,(by her),My mother sweeps the floor every day.,The floor is swept (by my mother) every day.,2. I bought a computer last term,A computer was bought (by me) last term.,The light was invented (by Thomas Edison).,Tho
7、mas Edison invented the light.,The students planted many trees yesterday.,Many trees were planted (by the students) yesterday.,Ann can take good care of the cats ,The cats can be taken good care of by Ann. 情态动词(model verb)：S+ can/must/should等情态动词 + be+过去分词,We should clean the classroom every day.,Th
8、e classroom should be cleaned by us every day.,1.People use knives for cutting things. Knives _ _ for cutting things. 2.The students clean the windows of their classroom twice a month. The windows of their classroom_ _ twice a month.,are used,are,cleaned,(变被动语态）,3.I found the ticket on the floor. _
9、_ _ _ on the floor. 4.I told her to return the book in time. She _ _ to return the book in time.,The ticket was found,was told,5. Last year we built a library in our school. A library _ _ in our school last year. 6.Now people can use computers to help them. Now computers _ _ _ to help them.,was buil
10、t,can be,used,7. Did you plant many trees at this time last year? _ _ _ _ at this time last time? 8.Must we finish our work today? _ our work_ _ today?,Were many trees planted,Must be finished,9. The foreign friends gave us some wonderful stamps. 1) _ _ _ some wonderful stamps. 2) Some wonderful sta
11、mps _ _ _ _.,we were given,were,given to us,10.The teacher asked Tom to turn on the computer. Tom _ _ to turn on the computer. 11.In this factory women do most of the work.Most of the work _ _ by women in this factory.,was asked,is done,12.He can mend the bike in two days. The bike _ _ _ in two days. 13.You must take this medicine three times a day. This medicine _ _ _ three times a day.,can be mended,must be,taken,
