初中英语语法系列被动语态PPT课件

1、1.Teenagers should be allowed to choose their own clothes.2.English is spoken by many people4.Lucky 52 is watched on TV by many people .3.The tickets about heroes are sold out5.Rice is planted in South China.6.He is said a good boy .第1页/共26页语态：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

2、：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)第2页/共26页 助动词be有人称、数的变化,其变化规则与be作为连系动词时一样。如：The desk is made of wood. The desks are made of wood.被动语态的结构助动词be+及物动词的过去分词1.一般现在时的被动语态结构：第3页/共26页by many students.1.Many students study English.Englishis studied2.

3、They make shoes in that factory.Shoesare madeby themin that factory.第4页/共26页by the teacher.3.The teacher often asks him questions.Heis askedquestions第5页/共26页1. 找宾语 -即动作的承受者They make shoes in that factory. Shoes2. 判断宾语的单复数 -即be动词的单复数.are made3. 判断动词的时态 -即be动词的时态.4. 修改谓语的时态 -即原句动词改为过去分词 5. 修改原句的主语 -即b

4、y+ 主语/ 宾语. by them.主变被解题步骤宾变主,主放后,前加by动变被,看清be, 结构分别be+ pp第6页/共26页They play football on Sunday.Lucy does the homework in the evening.They often use computers in class.We make these machines in Beijing.Football is played by them on Sunday.The homework is done by Lucy in the evening.Computers are ofte

5、n used by them in class.These machines are made in Beijing.第7页/共26页肯定句：主语be + 过去分词(by )否定句：主语be not 过去分词(by )一般疑问句：Be 主语过去分词(by )? 特殊疑问句： 疑问词be主语+过去分词 (by ) 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。by many students.Englishis studied第8页/共26页1. They bought ten computers last term by them last

6、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 treeswere plantedTen computerswere bought第9页/共26页 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 for resting.The tall

7、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.第10页/共26页1.Some workers are painting the rooms nowby some workers now.The rooms are being painted2.He is washing his jacket.

8、His jacketis being washedby him.第11页/共26页 They are building a new house. He is looking for his new pen. We are cleaning our classroom windows now. They are cooking a rich dinner for Spring Festival.A new house is being built by them .His new pen is being looked for by him.Our classroom windows are b

9、eing cleaned by us.A rich dinner is being cooked by them for Spring Festival.第12页/共26页4.一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 workwill be finished2.Tom will clean the room tomorrow.The room will be cleanedby Tom tomorrow.第13页/共26页 We will hold a spo

10、rts 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 held by us next week.Some photos will be taken by children in the school tomorrow.A talk will be given by the headmaster this afternoon.第14页/共26页5

11、.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.Ginacan be taken good care of第15页/共26页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

12、be drawn by Lucy.The lights must be turned off by you.English should be learned well by them.第16页/共26页1.We have made twenty more keysby us.Twenty more keyshave been made第17页/共26页1.We have cleaned doors and windows.2.Lucy has painted three pictures till now.3.They have mended the car for the old man.

13、 4.He has kept the book for two days. Doors and windows have been cleaned by us.Three pictures have been painted by Lucy till now.The car has been mended by them for the old man. The book has been kept by him for two days. 第18页/共26页表格：被动态基本结构时态时态被动语态结构被动语态结构一般现在时一般现在时一般过去时一般过去时现在进行时现在进行时过去进行时过去进行时一般

14、将来时一般将来时过去将来时过去将来时现在完成时现在完成时过去完成时过去完成时am/is/are donewas/were doneam/is/are being donewas/were being donewill be donewould be donehave/has been donehad been done第19页/共26页believedIts reported that about three hundred people were killed in this earthquake.据报道，这次地震中大约有三百人死亡。The cup was broken by David.第

15、20页/共26页第21页/共26页keep, make 三类的动词常常有宾语补足 语，在被动We keep food fresh in the fridge. 主 谓 宾 宾补 Food is kept fresh in the fridge. I saw him go into the office building. 第22页/共26页They take good care of my child. My child is taken good care of .I turned off the radio. The radio was turned off (by me)第23页/共26页第24页/共26页（1）当主动结构中的宾语是反身代词和相互代词