1、The Passive Voice被动语态 英语中动词有英语中动词有主动语态主动语态和和被动语态被动语态两种两种语态。主动语态表示主语是动作的执行者，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，被动语态表示主语是动作的承受者，在被在被动语态中动作的执行者有时用动语态中动作的执行者有时用by短语表示短语表示出来。出来。各种时态的被动语态构成各种时态的被动语态构成一般现在时：一般现在时：一般过去时：一般过去时：一般将来时：一般将来时：情态动词：情态动词：过去进行时过去进行时现在完成时：现在完成时：S+am/is/are+doneS+can/may/must/should+
2、be+done S+will +be+done S+was/were +being+doneS+have/has+been+doneS+was/were +done各种时态的被动语态构成各种时态的被动语态构成一般现在时的被动语态一般现在时的被动语态 1.the present passive voice 结构：结构：am/is/are+过去分词过去分词 e.g.Tom breaks the beautiful kite.The beautiful kite is broken by Tom.一般过去时的被动语态一般过去时的被动语态 2.the past passive voice 结构结构:w
3、as/were +过去分词过去分词 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态一般将来时的被动语态【含义含义】表示表示将要发生将要发生的的被动动作被动动作，后常跟表示，后常跟表示将来时的时间状语。将来时的时间状语。【结构结构】?Summing up the present future passive voicethe future tensethe passive voiceshall/will+dobe+p.p.Shall/will
4、+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 down a tree.You will be punished(by people)if you cut down a tree.These bottles will be recycled to make new things(by people).Some clothes will be sold in charity shops.More trees will be planted by the government.vPeople will recy
5、cled these bottles to make new things.vPeople will sell some clothes in charity shops.vThe government will plant more trees.Amy can take good care of Gina Gina can be taken good care of by Amy.情态情态动词的被动语态：动词的被动语态：S+can/may/must/should+be+过去分词过去分词1.He can take care of the baby.2.Lucy may draw the pic
6、tures.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 learned well by them.She waters the flowers every day.The flowersevery day.are watered(by her)My mother s
7、weeps 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).Thomas Edison invented the light.The students planted many trees yesterday.Many trees were planted(by the students)yeste
8、rday.Ann can take good care of the cats The cats can be taken good care of by Ann.情态动词情态动词(model verb)：S+can/must/should等情态动词等情态动词+be+过去分词过去分词We should clean the classroom every day.The classroom should be cleaned by us every day.1.People use knives for cutting things.Knives _ _ for cutting things.2
9、.The students clean the windows of their classroom twice a month.The windows of their classroom_ _ twice a month.are usedarecleaned(变被动语态）变被动语态）3.I found the ticket on the floor._ _ _ _ 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 t
10、old5.Last year we built a library in ourschool.A library _ _ in our school last year.6.Now people can use computers to help them.Now computers _ _ _ to help them.was built can be used7.Did you plant many trees at this time last year?_ _ _ _ at this time last time?8.Must we finish our work today?_ ou
11、r work_ _ today?Were many trees plantedMust be finished9.The foreign friends gave us some wonderful stamps.1)_ _ _ some wonderful stamps.2)Some wonderful stamps _ _ _ _.we were given were given to us10.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 done12.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
