被动语态讲解公开课课件.ppt
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1、1,被动语态,2,初中被动语态的奥秘,中考必考的重点语法,3,语态:表示主语和谓语动词之间的关系。英语有两种语态,即主动语态和被动语态。,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。如:Many students study English.(主动语态) English is studied by many students. (被动语态),语态,4,我每天吃苹果.I eat apples every day.Apples are eaten by me every day.苹果每天被我吃.,5,他杀鸡He kills chicken.Chicken is killed
2、 by him .鸡被他杀了,6,Beast catches the princess . 怪兽抓了公主 The princess is caught by beast. 公主被怪兽抓走了。,7,人们读名著 People read great booksGreat books are read by people名著被人们读,8,They plant flowers.他们种花。花被他们种。,Flowers are planted by them,9,He plays basketball.他打篮球。篮球被他打。,Basketball is played by him.,10,主动语态变被动语态
3、的方法,1.把主动语态的宾语变为被动语态的主语。,2.把主动语态的谓语变为被动语态的谓语。,3.把主动语态的主语变为被动语态的by 短语。( by短语可以省。 by短语 后跟代词的宾格。)口诀:主变宾,宾变主,谓语动词变be+done.,by the teacher.,The teacher often asks him questions.,He,is asked,questions,11,一般现在时被动语态的构成: 主语+am/is/are+及物动词的过去分词,动词过去分词的构成规则(与动词过去式构成规则一样):,1、一般在动词原形末尾加-ed,looked played,2、结尾是e的动
4、词加-d , lived used,3、末尾只有一个辅音字母的重读闭音节词,先双写 这个辅音字母,再加-ed, planned tripped,4、结尾是“辅音字母+y”的动词,先变“y”为“i” , 再 加-ed , study-studied, carry-carried,12,1、speak spoke spoken 2、use used used3、make made made 4、write wrote written5、grow grew grown 6、plant planted planted7、produce produced produced 8、ask asked ask
5、ed9、plan planned planned 10、send sent sent11 、 build built built 12、invite invited invited,请写出下列动词的过去式和过去分词:,sing-sang-sung,build-built-built,13,把下列的句子变为被动语态的句子:1、They speak English in Canada .(English.)2、People use wood for making tables. (wood.)3、The make computers in the USA.(Computers)4、They gro
6、w rice in South China.(Rice),English is spoken in Canada.,Wood is used for making tables.,Computer are made in the USA.,Rice is grown in South China.,14,中考链接,1. The Olympic Games every four years. (17年新课标版,32)A are heldBwere heldCare holdingDwill hold2. Today Chinese _ by more and more people around
7、 the world. (17年北京真题,35)A. was spoken B. is spoken C. spoke D. speak,15,例如:苹果每天被我吃。昨天苹果被我吃了。苹果正在被我吃。昨天九点苹果正在被我吃。明天这个苹果将要被我吃。这个苹果应该被我吃。.,被动语态的时态:被动语态的时态是由be的时态决定的,be是什么时态,全句就是什么时态,be动词后面的过去分词不变。,16,表格:被动态基本结构,am/is/are done,was/were done,am/is/are being done,was/were being done,shall/will/be going to
8、 be done,would be done,have/has been done,had been done,17,此外,情态动词也有被动语态:结构为:情态动词+ be + done1.Teenagers should be allowed to choose their own clothes.2.A lot of people in China can speak English now . (同上) English _ _ _ by a lot of people in China now.,can be spoken,18,1. They bought ten computers l
9、ast term,by them last term.,2.一般过去时的被动语态结构:,was/were +过去分词,last year.,2.We planted many trees last year.,Many trees,were planted,Ten computers,were bought,19,They built the tall building last year.He took good care of his little brother yesterday.We cleaned our classroom just now.They used this room
10、 for resting.,The tall building was built by them last year.,His little brother was taken good care of by him yesterday.,Our classroom was cleaned by us just now.,This room was used for resting by them.,20,3.一般将来时的被动语态结构:,will be+过去分词,1.They will finish the work in ten days.,by them in ten days.,The
11、 work,will be finished,2.Tom will clean the room tomorrow.,The room,will be cleaned,by,Tom,tomorrow.,21,We will have a sports meeting next week.Children will take some photos in the schoolyard tomorrow.The headmaster will give a talk this afternoon.,A sports meeting will be had by us next week.,Some
12、 photos will be taken by children in the school tomorrow.,A talk will be given by the headmaster this afternoon.,22,4.含有情态动词的被动语态结构:,can/may/must/should + be+过去分词,1.Amy can take good care of Gina ,by Amy.,Gina,can be taken good care of,2.You should drink more water.,More water,should be drunk,by you
13、.,23,5.现在进行时的被动语态的结构,is / am / are + being 过去分词,1.Some workers are painting the rooms now,by some workers now.,The rooms,are being painted,2.He is watching TV.,TV,is being watched,by him.,24,6.现在完成时的被动语态的结构,have / has been 过去分词,1.We have made twenty more keys,by us.,Twenty more keys,have been made,2
14、.We have finished our compositions.,Our compositions,have been finished,by us.,25,填空(完成被动语态填空) 1. They often clean their classroom after school . (改为被动语态) Their classroom _ often _ by them after school. 2. Li Lei gave Tom a new pen last week . (同上) A new pen _ _ _ Tom last week .,is,cleaned,was give
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