Unit 5--Unit 7被动语态课件人教版九年级英语全册.pptx
Unit 5-Unit 7,被动语态,何为被动语态？,当句子的主语是动作的执行者时，谓语的形式是主动语态。当句子的主语是动作的承受者时，谓语要用被动语态,被动语态的标志：被动语态由助动词be+过去分词构成，时态通过be表现出来。,一般现在时被动语态,His brother washes bowls every day.,主,谓,宾(受动者）,Bowls,are washed,by,his brother,every day.,结构：S(主语）+am/is /are +过去分词,一般现在时被动语态练习,They play football on Sunday.,Football is played by them on Sunday.,Lucy does the homework in the evening.,The homework is done by Lucy in the evening.,They often use computers in class.,Computers are often used by them in class.,一般过去时被动语态,He looked after the little baby yesterday,主,谓,宾（受动者）,The little baby,was looked after,by,him,yesterday,结构：S+was/were +过去分词,一般过去时被动语态练习,They built the tall building last year.,The tall building was built by them last year.,He took good care of his little brother yesterday.,His little brother was taken good care of by him yesterday.,We cleaned our classroom just now.,Our classroom was cleaned by us just now.,一般将来时被动语态,Tom will clean the room tomorrow.,主,谓,宾,The room,will be cleaned,by,Tom,tomorrow.,结构：S+ will+be+过去分词,一般将来时被动语态练习,We will have a sports meeting next week.,A sports meeting will be had by us next week.,Children will take some photos in the schoolyard tomorrow.,Some photos will be taken by children in the schoolyard tomorrow.,The headmaster will give a talk this afternoon.,A talk will be given by the headmaster this afternoon.,情态动词的被动语态,Amy can take good care of Gina ,主,谓,宾,Gina,can be taken good care of,by,Amy,结构：S+ 情态动词+ be+过去分词,can/may/must/need/would/should/would/could/might.,情态动词的被动语态练习,He can take care of the baby.,The baby can be taken care of by him.,Lucy may draw the pictures.,The picture may be drawn by Lucy.,You must turn off the lights.,The lights must be turned off by you.,现在进行时被动语态,Some workers are painting the rooms now,主,谓,宾,The rooms,are being painted,by,some workers,now.,结构：S+ am/is/are + being +过去分词,过去进行时被动语态,I was doing my homework at 8:00 last night,主,谓,宾,My homework,was being done,by,me,at 8:00 last night,结构：S+ was/were+being+过去分词,现在完成时被动语态,We have made twenty more keys,主,谓语,宾,Twenty more keys,have been made,by,us,结构：S+ have/has + been+过去分词,被动语态特殊情况,The students listen to the teacher carefully in class.,The teacher is listened to carefully by the students in class.,They look after the new students in the school.,The new students are looked after by them in the school.,1.不及物动词带介词或介词宾语时，在变被动语态时仍要带上介词,被动语态特殊情况,They make us do all the work.,We are made to do all the work by them.,We often hear her sing songs.,She is often heard to sing songs by us.,2.使役动词let/make/have,感官动词see/watch/feel/hear/notice等在主动语态中省略to，在被动语态中加上to,被动语态特殊情况,He gives me a flower everyday.,被动1 I am given a flower by him everyday.,被动2 A flower is given to me by him everyday.,My mother bought me a computer.,被动1 I was bought a computer by my mother .,被动2 A computer was bought for me by my mother .,当动词带双宾时（一个指人的宾语，一个指物的宾语），指人的宾语提前做被动句的主语时，指物的宾语照抄；如果是指物的宾语提前做被动句主语，指人的宾语前需加介词“to/for”,常见加to的动词有give，send, teach，write, show, pass, ask, tell常见加for的动词有make, draw, buy,
