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1、Passive VoiceDiscusion:the active voice 主动语态主动语态&the passive voice被动语态被动语态1.什么时候用主动语态或被动语态？什么时候用主动语态或被动语态？2.主动语态和被动语态的动词结构是怎样的？主动语态和被动语态的动词结构是怎样的？3.3.主动语态句子变成被动语态句子哪三个部主动语态句子变成被动语态句子哪三个部分要变？怎么变？分要变？怎么变？语态动词 时态 结构 主动语态 被动语态一般现在时 一般过去时 一一.何时使用被动语态何时使用被动语态 1.不知道谁是动作的执行者或没有必要不知道谁是动作的执行者或没有必要 Books are m
2、ade of paper andpaper is made from wood.2.2.需要强调动作的承受者时需要强调动作的承受者时 He was awarded first prize in that contest.The kite is made by my father.什么时候用主动语态或被动语态？什么时候用主动语态或被动语态？主语是动作的执行者就用主动语态主语是动作的执行者就用主动语态主语是动作的承受者就用被动语态主语是动作的承受者就用被动语态We study English at school.English is studied by us at school.Shen Non
3、g invented tea.Tea was invented by Shen Nong.Discusion 1:the active voice 主动语态主动语态&the passive voice被动语态被动语态1.We call the doctor.2.People dont play football here.3.The truck was cleaned yesterday.Decide if these sentences are active or passive.4.M r Chen teaches us English.5.The classroom was cleane
4、d.activeactivepassiveactivepassive 语态动词 时态 结构 the active voice the passive voice一般现在时 一般过去时 am is +p.p.are was +p.p.were v v+s esp.t.Discusion 2:the active voice 主动语态主动语态&the passive voice被动语态被动语态Exercise：1.The key _for locking the classroom door.A.uses B.is used C.is using D.use2.A new school _over
5、 there two years ago.A.is built B.was built C.build D.builds3.The lost child _ on October 7,1998.A.was found B.is found C.found D.find4.A talk on Chinese history _in the school hall yesterday.A.is given B.give C.was given D.gave BBACDisscusion 3:the active voice 主动语态主动语态&the passive voice被动语态被动语态主动语
6、态句子变成被动语态句子哪三个部分主动语态句子变成被动语态句子哪三个部分要变？怎么变？要变？怎么变？1.把原句的宾语改为主语。把原句的宾语改为主语。2.把原句的谓语动词改为被动语态结构把原句的谓语动词改为被动语态结构(be+p.p.)。3.把原句的主语改为把原句的主语改为by的宾语（的宾语（用宾格用宾格）,可省略可省略。e.g.She cleaned the room.The room was cleaned (by her).1.They play basketball in their school.(改为被动语态改为被动语态)Basketball_ _in their school by
7、them.is played2.The naughty boy broke the window.The window _ _ by the naughty boy.3.People speak English all over the world.English _ _ by people all over the world.Exercise：was brokenis spokenSummary：1.什么时候用主动语态或被动语态？什么时候用主动语态或被动语态？2.主动语态和被动语态的动词结构是怎样的主动语态和被动语态的动词结构是怎样的？3.3.主动语态句子变成被动语态句子哪三个主动语态句子
8、变成被动语态句子哪三个部分要变？怎么变？部分要变？怎么变？语态动词 时态 结构 主动语态 被动语态一般现在时 一般过去时 被动语态需注意以下几点被动语态需注意以下几点：1.make,let,have,hear,watch,see,feel,notice.在主动语态中后跟动词原型不在主动语态中后跟动词原型不加加to,但变为被动语态后必须加但变为被动语态后必须加to.make sb.do sth.-be made to do sth.see sb.do sth.-be seen to do sth.hear sb.do sth.-be heard to do sth.2.情态动词的被动语态。是由情
9、态情态动词的被动语态。是由情态V+be+p.p.构成构成 They can not find him.He can not be found.You must pay me for this.I must be paid for this.3.主动语态中的宾语是从句，变成被动时使主动语态中的宾语是从句，变成被动时使 用形式替代用形式替代 词词it.We know that Britain is an island country.Its known that Britain is an island country.Its said that Its believed that Its reported that4.一些动词的主一些动词的主动形动形式可表式可表被动被动 感官动词：感官动词：sound,taste,smell,fell,look,seem等主语是物时；等主语是物时；一些一些vi主动形式表被主动形式表被动含义动含义open,close,shut,read,write,translate,wash,clean,lock,sell,wear,cut,cook,eat,weigh,drink,pay,draw,etc.The goods sells well.The door cant open.