九年级英语Unit9被动语态讲解

1、.主动语态与被动语态： 英语动词有两种语态,即主动语态(The Active Voice)与被动语态（The Passive Voice)。 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。,主动语态,被动语态,主动语态,被动语态,e.g Many people speak English.,主动语态变被动语态的步骤： 1、主动语态的宾语变为被动语态的主语； 2、主动句的谓语动词变为被动结构； 3、主动句的主语变为被动句的宾语，由by 引出，当不强调动作的执行者时，常省略。 4.其它成分不变。,变被动语态时需要注意的事项,一变 二套 三注意,宾变主，主变宾，宾语前面by跟，谓

2、语动词变过分，不忘前面be动词跟,套时态，主被动时态一致,注意因人称的变化而引起的主谓一致问题。,各种时态的被动语态的构成：,1.一般现在时态 am, is, are +过去分词 2.一般过去时态 was, were +过去分词 3.一般将来时态 will+ be +过去分词 4.过去将来时态 would+ be + 过去分词 5.现在完成时态 have, has + been +过去分词 6.过去完成时态 had + been +过去分词 7.现在进行时态 am, is, are + being +过去分词 8.过去进行时态 was, were + being +过去分词 9.含情态动词的

3、情态动词 +be+过去分词,所有时态的被动语态否定就是在 最前面的助动词后加 not 疑问就是把最前面的助动词提前。,Many trees are not being planted now,Are many trees being planted now?,把下列的句子变为被动语态的句子： 1、They speak English in Canada . 2、People used wood for making tables. 3、They are making computers in the USA.,English is spoken in Canada(by them).,Wood

4、 was used for making tables.,Computers are being made in the USA.,把被动句变否定,Computers arent being made in the USA.,4、They have grown rice in South China. 5. We must plant more trees next year. 6.I am going to clean our classroom tomorrow.,More trees must be planted next year.,Our classroom is going to

5、 be cleaned tomorrow.,Rice has been grown in South China.,把被动句变疑问.,Has rice been grown in South China？,变被动语态的特殊情况,一。双宾语 双宾语由直接宾语和间接宾语组成。主语+及物动词+间接宾语+直接宾语 直接宾语是谓语动词的承受者， 间接宾语表示谓语动作的方向（对谁做）或动作的目标（为谁做）， 间接宾语紧接在谓语动词后，但它不能单独存在。它和直接宾语组成双宾语。 e.g.: They gave him a watch. 这里的him 是间接宾语, a watch 是直接宾语,变被动语态的特殊

6、情况,一、双宾语,buy/make sb sth,=buy/make sth for sb,give sb sth,=give sth to sb,1.My father bought me a computer.,A computer was bought for me by my father.,I was bought a computer by my father.,2.He gives me a book.,A book is given to me by him.,I am given a book by him,Sth+be+ 过去分词+ for/to sb+ by sb.,Sb

7、 + be+ 过去分词 + sth + by sb,双宾语改为被动语态,1 He gave me an apple 2.He bought me a bike last week 3He wrote me a letter 4He sent me some messages that day,I was given an apple An apple was given to me,I was bought a bike last week A bike was bought for me last week,I was written a letter A letter was writte

8、n to me,I was sent some messages that day Some messages were sent to me,二、无to不定式,一感 二听 三让 四看,feel,listen to.hear,let.have.make,watch. see.look at. notice,变为被动时加上to,eg. We often see him play basketball.,He is often seen to play basketball by us.,The boss made the children work for long.,The children

9、were made to work for long by the boss.,= A man was seen to enter the room.,My mother made me do the dishes yesterday. We saw a man enter the room. He made him work for one hour,=I was made to do the dishes yesterday.,He was made to work for one hour .,三、注意动词短语的,常考到的动词短语有,完整性,take care of,look after

10、,listen to,speak to,eg. 1.We should speak to the old politely.,The old should be spoken to politely.,2. The nurse takes good care of the baby.,The baby is taken good care of by the nurse.,四、无被动语态的动词。,不及物动词及系动词,happen,take place,die,rise,come true,come out,eg.1. An accident (happen) just now.,happened,2. Im sure that my dream . (come true) some day in the future,will come true,常用的被动语态短语,be made of from into be used to do for doing as,由-制成的,看出