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1、被打的豆豆,被动语态讲解,遥远的小岛上，住着一个倒霉蛋，它叫豆豆，那里的人只有三件事要忙，吃饭，睡觉，打豆豆。你看，它总是被打，还不知道是谁打的。,Doudou is always beaten by someone.,昨天晚上，夜黑风高，它又被打了。,Doudou was beaten yesterday evening.,明天，豆豆还会面临n顿暴打，可怜的豆豆啊。Tomorrow,Doudou will be beaten several times.,可怜的豆豆，已经被这样打了很多年。命运一直没有改变。Poor Doudou has been beaten for many years.
2、,我们亲爱的豆豆现在在干嘛，不用问，一定是正在被打。Our dear doudou is being beaten now.,随时可能被打的豆豆啊，谁来救救它啊。Poor Doudou may be beaten anytime.,语法精讲被动语态,被动语态的基本构成：be+动词的过去分词（be+done),1.一般现在时am/is/are+done,We clean the classroom every day.The classroom is cleaned by us every day.,He put on a coat.A coat was put on by him.,2.一般过
3、去时was/were+done,He made the kite.The kite was made by him.,3.一般将来时 shall/will/be going to+be done,They will plant trees tomorrow.Trees will be planted by them tomorrowHe is going to write a letter to his mother.A letter is going to be written to his mother by him.,4.现在完成时has/have+been done,Jim has f
4、inished the work.The work has been finished by Jim.,5.含有情态动词的被动语态,can/may/must/should+be done,I can find him.He can be found by me.,被动语态的用法,1.不知道动作的执行者是谁。,这块手表是中国制造的。,2.没有必要指出动作的执行者,每年都应该种更多的树。,This watch is made in China.,Many trees should be planted every year.,3.需要强调或突出动作的承受者。,世界上越来越多的人说汉语。,4.句子的
5、主语是动作的承受者。,许多房屋被冲走了。,Chinese is spoken by more and more people in the world.,Many houses were washed away by the flood.,主动语态变被动语态的方法,（主语）（宾语）主动语态：动作的执行者+谓语动词的主动形式+动作的承受者被动语态：动作的承受者+谓语动词的被动形式+动作的执行者（主语）（宾语）,说明：（1）要将主动句里的宾语变为被动句中的主语，若主动句中的宾语为人称代词，要将宾格变成主格。（2）把主动句中的主语变为被动句中的宾语，主格变宾格，并由by引导。（3)谓语动词变成相应的
6、被动形式。,主动语态变被动语态应注意的问题1.把主动语态变为被动语态时，应保留主动语态原来的时态。如：She often cleans the house.The house is often cleaned by her.2.有些动词可以有双宾语，在用于被动结构时，通常变为主语的是间接宾语（sb.）,His mother gave him a present for his birthday,He was given a present by his mother for his birthday.,3)当“动词+宾语+宾语补足语”结构变为被动语态时，将宾语变为被动结构中的主语，其余不动.,
7、Someone caught the boy smoking a cigarette(香烟）,=The boy was caught smoking a cigarette.,4）在使役动词have,make,get以及感官动词see,watch,notice,hear,feel,observe等变为被动结构时，要加to,Someone saw a stranger walk into the building,=A stranger was seen to walk into the building.,5)有些相当于及物动词的动词词组，如“动词介词”，“动词副词”等，也可以用于被动结构，但
8、要把它们看作一个整体，不能分开。其中的介词或副词也不能省略。,The meeting is to be put off till Friday,补充部分,1.主动结构表被动意义,某些可用来表示主语内在品质或性能的不及物动词，如 sell,write,wash,clean,last(耐久),wear(耐穿),它们的主语为物，可以用主动语态表被动意义。,This kind of shirt sells well.,2.look,sound,taste,smell等系动词用主动表被动意义。例：It smells wonderful.Mooncakes taste delicious.,3.在be w
9、orth doing中,doing表被动意义。例：This book is worth reading.,4.want/need/require+doing=want/need/require+to be done 例：My bike needs repairing.=My bike needs to be repaired.我的自行车需要修理。,5、动词不定式的主动形式表示被动意义：,不定式作定语与被修饰的名词或代词构成动宾关系时，如：,我有许多事情要做。他有几项任务要完成。,I have a lot of things to do.,He has several tasks to comp
10、lete.,2.在“系动词+形容词+不定式”结构中，常见句型有：,n.+be+too+adj.+to do The plane is too high to see.2)n.+be+adj.+enough+to do The book is cheap enough for me to buy.3)n.+be+adj.+to do The question is not easy to answer.,课堂练习（一）改写句子1.We plant trees in spring every year._ by us in spring every year.2.She posted the le
11、tter yesterday._ by her yesterday.3.Mr Turner gave me a birthday present._a birthday present by Mr Turner.5.You may hand in your homework tomorrow._ by you tomorrow.6.She is going to write a letter._ by her.,Trees are planted,The letter was posted,I was given,Your homework may be handed in,A letter
12、is going to be written,7.I have given you the new book._ to you.8.Her bag cannot be found by her._ her bag.9.Do you often hear her sing Russian songs?_Russian songs by you?10.She doesnt let her son swim in the river._ in the river by her.11.The bridge was being built by them at this time last year._
13、 the bridge at this time last year.12.Does she often sing the song?_ by her?,The new book has been given,She cannot find,Is she often heard to sing,Her son isnt let to swim,They were building,Is the song often sung,1.If city noises _ from increasing，people _ shout to be heard even at dinner A are no
14、t kept；will have toB are not kept；have C do not keep；will have to D do not keep；have to 2.The fifth generation computers,_and perfected now.A.developed B.have developed C.are being developed D.will have been developed3.-_ the sports meet might be put off-Yes，it all depends on the weather A Ive been
15、told B Ive told C Im told D I told,A,C,A,4.I need one more stamp before my collection _.A.has completed B.completes C.has been completed D.is completed 5.Rainforests _ and burned at such a speed that they will disappear from the earth in the near future.A.cut B.are cut C.are being cut D.had been cut
16、 6.The new bridge _ by the end of last month.A.has been designed B.had been designed C.was designed D.would be designed7.When part of a pencil is in a glass of water,it looks as if it _.A.breaks B.has broken C.was broken D.had been broken,D,C,B,C,8.Great changes _ in the city,and a lot of factories
17、_.A.have been taken place;have been set up B.have taken place;have been set upC.have taken place;have set up D.were taken place;were set up9.That suit _ over 60 dollars.A.had costed B.costed C.is costed D.cost10.-Look!Everything here is under construction.-Whats the pretty small house that _ for?A.i
18、s being built B.has been built C.is built D.is building 11.-Do you like the cloth?-Yes,it _ very soft.A.is feeling B.felt C.feels D.is felt,B,D,A,C,12.It is difficult for a foreigner _ Chinese A write B to write C to be written D written 13.I have no more letters _，thank you A to type B typing C to
19、be typed D typed14.Take care!Dont drop the ink on your shirt,for it _ easily.A.wont wash out B.wont be washed out C.isnt washed out D.isnt washing out15.Nobody noticed the thief slip into the house because the lights happened to _.A.be put up B.give in C.be turned on D.go out,B,C,A,D,16.The computer
20、s on the table _ Professor Smith.A.belongs B.are belonged to C.belongs to D.belong to17.-What do you think of the book?-Oh,excellent.Its worth _ a second time.A.to read B.to be read C.reading D.being read18.The squirrel was lucky that it just missed _.A.catching B.to be caught C.being caught D.to catch 19.This page needed _ again.A.being checked B.checked C.to check D.to be checked 20._ many times,the boy still didnt know how to do it.A.Having taught B.Having been taught C.taught D.Teaching,D,C,C,D,B,
