人教版九年级的英语Unit9语法(被动语态课件.ppt

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1、被动语态被动语态(a)Whats it made of?-Its made of metal.-Its used for riding.-Its made in China.Whats it used for?Where is it made?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.被动语态的用法：被动语态的用法：1、当不知道谁、没有必要或不想指出谁是动、当不知道谁、没有必要或不想指出谁是动作的执行者时；作的执行者时；2、只需强调动作的承受者时；、只需强调动作的承受者时；3、汉语中的、汉语中的“被、受、由被、受、由”等词译成英文时；等词译成英文时；4、当动作的发出者不是人

2、时，往往用被动语、当动作的发出者不是人时，往往用被动语态态 e.g.(1)English is spoken in Canada.(2)She was elected the monitor of our class.(3)I was shocked by the news.e.g.1.They make trains in Zhuzhou.(主动语态)Trains _ in Zhuzhou.(被动语态)2.The farmers grow cotton every year.Cotton _ by the farmers every year.3.Many people speak Engl

3、ish.English _ by many people.are madeis grownis spoken 助动词助动词be+及物动词动词的过去分词及物动词动词的过去分词被动语态的构成：被动语态的构成：注意注意:(be 有人称、时态和数的变化有人称、时态和数的变化)时 态被动语态结构一般现在时一般过去时一般将来时现在进行时过去进行时现在完成时过去完成时过去将来时各种时态的被动语态各种时态的被动语态（时态体现在（时态体现在be动词时上）动词时上）am/is/are+donewas/were+donewill/shall be+doneam/is/are being+donewas/were b

4、eing+donehave/has been+donehad been+donewould/should be+done1.Trees _(plant)by us in spring every year.2.The house _(build)last year.3.Li Ming will _(ask)to attend the lecture.4.A new building _(build)in our school now.5.The road were _(repair).6.He has _(send)to work in Guangzhou.7.The work _(finis

5、h)when I got there.8.The scientist would _(invite)to visit Iraq.are plantedExercises:was builtbe askedbeing repairedis being builtbeen senthad been finishedbe invited主动语态变为被动语态的步骤主动语态变为被动语态的步骤:1.把主动句的宾语变为被动句的主语把主动句的宾语变为被动句的主语.2.把主动句的谓语动词变为把主动句的谓语动词变为be+动词的过去分词动词的过去分词的形式的形式.3.把主动句的主语变为被动句中把主动句的主语变为被动

6、句中by后面的宾语后面的宾语（可以省略）。（可以省略）。注意：注意：主动句变为被动句后，被动句的时态必须主动句变为被动句后，被动句的时态必须与主动句的句式、时态保持一致。与主动句的句式、时态保持一致。People play football all over the world.Football is played(by people)all over the world.几种句式的被动语态几种句式的被动语态I.含有情态动词的被动语态：含有情态动词的被动语态：情态动词情态动词+be+动词的过去分词动词的过去分词e.g.We must keep the food in a cool place.

7、The food must be kept in a cool place.II.含有短语动词的主动句变为被动语态时，含有短语动词的主动句变为被动语态时，不要遗漏与动词连用的介词或副词。不要遗漏与动词连用的介词或副词。e.g.We should take good care of the sick child.The sick child should be taken good care of.III.含有复合宾语的主动句变为被动语含有复合宾语的主动句变为被动语态时，若宾补为不带态时，若宾补为不带to的动词不定的动词不定式，被动语态中必须加上式，被动语态中必须加上to。常见的这类动词有：常见

8、的这类动词有：see,hear,watch,make,have等等e.g.We often hear him sing in the next room.He is often heard to sing in the next room.The boss made the workers work 12 hours a day.The workers _ 12 hours a day.were made to workIV.含有双宾语的主动句变为被动句时，含有双宾语的主动句变为被动句时，直接宾语和间接宾语都可作主语。直接宾语和间接宾语都可作主语。e.g.My friends sent me

9、some beautiful stamps.I was sent some beautiful stamps by my friends.Some beautiful stamps were sent to me by my friends.We gave Mike nice gifts on his birthday.Mike _ nice gifts by us on his birthday.Nice gifts _ Mike by us on his birthday.was givenwere given toExercises：把下列句子变为被动语态把下列句子变为被动语态1.Do

10、they call the dog“Bobby”?2.The policeman caught the man just now.3.He will finish the letter soon.4.They made little Tom walk up and down.5.His friends often laugh at him.6.They see the tall man go into the house in his class.Answers:1.Do the dog be call“Bobby”?2.The man was caught by the policeman just now.3.The letter will be finished soon.4.Little Tom was made to walk up and down.5.He is often laughed at by his friends.6.The tall man is seen to go into the house in his class.Bye-bye!