被動語態(tài)課件pptPPT課件

1、被動語態(tài)基本用法當句子的主語是動作的執(zhí)行者時，謂語的形式是主動語態(tài)。當句子的主語是動作的承受者時，謂語要用被動語態(tài)。被動語態(tài)由助動詞be+過去分詞構(gòu)成，時態(tài)通過be表現(xiàn)出來。第1頁/共33頁be + Vp.p(動詞的過去分詞）1)be 動詞可以隨時態(tài)人稱的變化而變化am/ is / are + V(過去分詞）was/ were+ V(過去分詞）will be + V(過去分詞）情態(tài)動詞+ be + V (過去分詞）第2頁/共33頁1.規(guī)則動詞的過去分詞：1)一般情況在動詞原形后加-edwatch-watched2)以不發(fā)音e結(jié)尾的加-dpractice-practiced3)以輔音加y結(jié)尾的，

2、去y變i加-edstudy-studied4)以重讀閉音節(jié)結(jié)尾，末尾只有一個輔音字母， 先雙寫該輔音字母，再加-edstop-stopped2.不規(guī)則動詞的過去分詞：amisarebeenhavehashaddodonewritewrittengogone第3頁/共33頁He plants trees in spring. 主謂賓(受動者)Treesare planted byhim改為被動語態(tài)in spring.第4頁/共33頁主動語態(tài)變被動語態(tài)口訣：賓語提前主語變，原主變賓by后見，時態(tài)人稱be關(guān)鍵。第5頁/共33頁Tom will clean the room tomorrow.主謂賓(

3、受動者)The room will be cleanedby Tom tomorrow.第6頁/共33頁His brother washes bowls every day.主謂賓(受動者)Bowls are washed byhis brother every day.第7頁/共33頁1.They make shoes in that factory.主語+及物動詞+賓語Shoes are made (by them) in that factory.一般現(xiàn)在時：S(主語）+am/is /are +過去分詞第8頁/共33頁2. They bought ten computers last t

4、erm Ten computers were bought (by them) last term.一般過去時：S+was/were +過去分詞第9頁/共33頁3Amy can take good care of Gina Gina can be taken good care of by Amy.情態(tài)動詞：S+ can/may/must/should + be+過去分詞第10頁/共33頁各種時態(tài)的被動語態(tài)構(gòu)成 1）一般現(xiàn)在時：You are invited to do this.2）一般過去時：The story was told by her.3）一般將來時：The problem wil

5、l be discussed tomorrow.第11頁/共33頁4)情態(tài)動詞：The rubbish can be put into the dustbin over there.第12頁/共33頁時態(tài)時態(tài)主動語態(tài)主動語態(tài)被動語態(tài)被動語態(tài)一般現(xiàn)在一般現(xiàn)在時時V(原形原形)/ V(e)sam/is/are +Vpp一般過去一般過去時時V-ed/ madewas/were +Vpp一般將來一般將來時時will +V(原形原形) will+ be +Vpp含情態(tài)動含情態(tài)動詞詞情態(tài)動詞情態(tài)動詞+ V(原形原形)情態(tài)動詞情態(tài)動詞+ be +Vpp第13頁/共33頁各種時態(tài)的被動語態(tài)構(gòu)成一般現(xiàn)在時：一般

6、過去時：情態(tài)動詞：一般將來時：現(xiàn)在進行時：現(xiàn)在完成時：過去進行時：S+am/is /are +P.PS+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.第14頁/共33頁 何時使用被動語態(tài)呢？ 一、行為主體不明確，不必說出或者無法說出動作的執(zhí)行者時。例如： Football is played all over the world 二、不易找到或根本就不可能找到動作的執(zhí)行

7、者時。例如： My bike was stolen我的自行車被盜了。 第15頁/共33頁三、漢語中含有“據(jù)說”、“據(jù)悉”、“有人說”、“大家說”等時。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.眾所周知 It is well known that 據(jù)推測說 It is supposed that 第16頁/共33頁四、漢語中含有“被”、“由”等詞時。例如： Tina is asked to come by PaulTin

8、a是被Paul叫來的。五、某些句子習慣上用被動語態(tài)。例如： He was born in October，1989 第17頁/共33頁1.People use knives for cutting things.Knives _ _ for cutting things.2.The students clean the windows of their classroom twice a month.The windows of their classroom_ _ twice a month. are usedarecleaned(變被動語態(tài)）第18頁/共33頁3.I found the t

9、icket 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第19頁/共33頁5. His doctor made him have only two meals a day.He _ _ _ _ only two meals a day.6.Now people can use computers to help them.Now computers _ _ _ to

10、 help them. was made to have can be used第20頁/共33頁7. 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 plantedMust be finished第21頁/共33頁9. The foreign friends gave us some wonderful stamps.1) _ _ _ some wo

11、nderful stamps.2) Some wonderful stamps _ _ _ _. we were given were given to us第22頁/共33頁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第23頁/共33頁12.He can me

12、nd the bike in two days.The bike _ _ _ 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第24頁/共33頁14.The students study German in this school.German _ _ by the students in this school.15.Do they often talk about this questi

13、on?_ this question often _ about _ _? is studiedIs talked by them第25頁/共33頁1)Teenagers should _ (allow) to go out at night.2)The telephone _ (invent) by Bell.3) English _ (speak) in China.4) The car _ (make) in China.5) The room must _ (clean) every day. be allowedwas inventedis spoken is madebe clea

14、ned第26頁/共33頁( ) The flowers _ every day,or theyll die.A must water B can be wateredC should water D must be watered( ) Many computers will _ to our school.A be bring B be brought C bring第27頁/共33頁4.They will finish the work in ten days.The work will be finished (by them)in ten days.一般將來時：S+ will+be+過

15、去分詞第28頁/共33頁5.Some workers are painting the rooms nowThe rooms are being painted by some workers now.現(xiàn)在進行時： S+ am/is/are + being +過去分詞第29頁/共33頁6We have made twenty more keysTwenty more keys have been made by us.現(xiàn)在完成時： S+ have/has + been+過去分詞第30頁/共33頁7I was doing my homework at 8:00 last night My homework was being done (by me) at 8:00 last night.過去進行時： S+ was/were+being+過去分詞