高中被动语态的复习之一.ppt

1、被动语态,被动语态基本用法 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。被动语态由助动词be+过去分词构成，时态通过be表现出来。,Tom will clean the room tomorrow.,主,谓,宾(受动者),The room,will be cleaned,by,Tom,tomorrow.,Will 后面用be动词原形,His brother washes bowls every day.,主,谓,宾(受动者),Bowls,are washed,by,his brother,every day.,一般现在时be 动词用is/

2、am/are, 主语是复数，因此用are washed,1.They make shoes in that factory. 主语+及物动词+宾语,Shoes are made (by them) in that factory. 一般现在时： S(主语）+am/is /are +过去分词,变为被动语态,4.They will finish the work in ten days.,The work will be finished (by them) in ten days. 一般将来时： S+ will+be+过去分词,Homework （请把下面的句子改成被动语态） 1.He clea

3、ns his room every day. 2.Li Lei will fix his bike in three days. 3. They sing songs at home on weekends. 4. The girls borrow the books on Tuesday in the library. 5. People will build many buildings in my hometown in 2007.,Homework （请把下面的句子改成被动语态） 1. We clean our room every day. 2. Lucy will repair h

4、er bike in three days. 3. She sings songs at home on weekends. 4. The students borrow the books on Tuesday in the library. 5. People will build many buildings in my hometown in 2007.,2. They bought ten computers last term,Ten computers were bought (by them) last term. 一般过去时：S(主语)+was/were +过去分词,3Amy

5、 can take good care of Gina ,Gina can be taken good care of by Amy. 情态动词： S(主语) + can/may/must/should + be+过去分词,5. Some workers are painting the rooms now,The rooms are being painted by some workers now. 现在进行时： S+ am/is/are + being +过去分词,6We have made twenty more keys,Twenty more keys have been made

6、 by us. 现在完成时： S+ have/has + been+过去分词,7I was doing my homework at 8:00 last night,My homework was being done (by me) at 8:00 last night. 过去进行时： S+ was/were+being+过去分词,He has to look after the little baby.,主,谓,宾(受动者),The little baby,has to be looked after,by,him.,改为被动语态,情态动词has to 后面的be动词用原形,各种时态的被动

7、语态构成 1）一般现在时： They are used for seeing the dark. 2）一般过去时：The story was told by her. 3）一般将来时：The problem will be discussed tomorrow.,看一看 想一想,4）现在进行时：The question is being discussed in the meeting room. 5）过去进行时：The new road was being made this time last year. 6）现在完成时：The novel has been read. 7)情态动词：Te

8、enagers should be allowed to choose their own clothes.,各种时态的被动语态构成,一般现在时： 一般过去时： 情态动词： 一般将来时： 现在进行时： 现在完成时： 过去进行时：,S+am/is /are +P.P S+was/were +P.P. S+ can/may/must/should + be+ P.P. S+ will+be+ P.P. S+ am/is/are + being + P.P. S+ have/has + been+ P.P. S+ was/were+being+ P.P.,何时使用被动语态呢？ 一、行为主体不明确，不

9、必说出或者无法说出动作的执行者时。例如： Football is played all over the world 二、不易找到或根本就不可能找到动作的执行者时。例如： My bike was stolen我的自行车被盗了。,三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如： It is said that one day he climbed to the top of a house and It was reported that her mother died of SARS. 众所周知 It is well known that 据推测说 It is suppos

10、ed that ,四、汉语中含有“被”、“由”等词时。 例如： Tina is asked to come by Paul Tina是被Paul叫来的。 五、某些句子习惯上用被动语态。例如： He was born in October，1989,1.People use knives for cutting things. Knives _ _ for cutting things. 2.The students clean the windows twice a month. The windows _ _ twice a month.,EXERCISES,are used,are,cle

11、aned,(变被动语态）,一般现在时,一般现在时,3.I found the ticket on the floor. _ _ _ _ on the floor. 4.I told her to return the book in time. She _ _ to return the book in time.,The ticket was found,was told,一般过去时,一般过去时,5. Now people can use computers to help them. Now computers _ _ _ to help them.,can be,used,情态动词,7.

12、 Did you plant many trees at this time last year? _ _ _ _ at this time last time? 8.Must we finish our work today? _ our work_ _ today?,Were many trees planted,Must be finished,一般过去时,情态动词,9. The foreign friends gave us some wonderful stamps. 1) _ _ _ some wonderful stamps. 2) Some wonderful stamps _

13、 _ _ _.,we were given,were,given to us,一般过去时,10.The teacher asked Tom to turn on the computer. Tom _ _ to turn on the computer. 11.In this factory women do most of the work. Most of the work _ _ by women in this factory.,was asked,is done,一般过去时,一般过去时,12.He can mend the bike in two days. The bike _ _

14、 _ in two days. 13.You must take this medicine three times a day. This medicine _ _ _ three times a day.,can be mended,must be,taken,情态动词,情态动词,14.The students in this school study German. German _ _ by the students in this school. 15.Do they often talk about this question? _ this question often _ ab

15、out _ _?,is studied,Is,talked,by them,一般现在时,一般现在时,Homework （请把下面的句子改成被动语态） 1.He is cleaning the classroom. 2. I have found my wallet. 3.I can take care of the young trees. 4.My father will repair my bike for me. 5.We shouldnt allow them to go out with their friends. 6. She told me to wait here for her.,Homework （请把下面的句子改成被动语态） 7. My parents allow me to do homework with friends. 8. Edison invented light bulbs. 9. Bell invented the telephone in 1876. 10. Shen Nong discovered tea by accident.,Homewor