被動句3-獲獎課件

1、被動語態(tài)The Passive Voice 英語動詞有兩種語態(tài)： 主動語態(tài) (the Active Voice) 被動語態(tài) (the Passive Voice)A. 主動語態(tài)表示主語是動作的執(zhí)行者。B. 被動語態(tài)表示主語是動作的承受者。We planted the tree.The tree was planted by us.We speak English.主語謂語賓語English is spoken by us.主語謂語賓語主動語態(tài)被動語態(tài)They cleaned the classroom yesterday. 昨天他們打掃了教室。The classroom was cleaned

2、 by them yesterday.昨天教室被他們打掃了。(一)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。be + PP(二)被動語態(tài)的基本結(jié)構(gòu):有各種時態(tài)的變化1. Now English _ by more and more people all over the word. A. speaks B. is spoken C. was spoken一般現(xiàn)在時的被動語態(tài)：主語+am / is / are + PP3. More man-made satell

3、ites _ in the future. A. will send up B. will be sent up C. are sent up一般將來時的被動語態(tài)：主語+will/ shall+ be + PP2. The lost boy _ at the street corner last night. A. was found B. is found C. was looked for一般過去時的被動語態(tài)：主語+was / were + PP4. Three bridges _ since last year. A. have built B. were built C. have b

4、een built現(xiàn)在完成時的被動語態(tài)：主語+have/ has+ been + PP5. Flowers _ every day. A. has been watered B. should be watered C. should water含有情態(tài)動詞的被動語態(tài)：情態(tài)動詞 + be + PP現(xiàn)在進行時被動語態(tài)：am/is/are +being +PP過去進行時態(tài)呢?was were+being +PP(四)主動語態(tài)變被動語態(tài): (1)把原來的賓語提到前面作被動語態(tài)的主語;(2)把謂語動詞變成被動結(jié)構(gòu)(be過去分詞) (根據(jù)被動語態(tài)句子里的主語的人稱和數(shù)，以及原來主動語態(tài)句子中動詞的時態(tài)來

5、決定be的形式)。 (3)把主動語態(tài)中的主語放在介詞by之后作賓語，將主格改為賓格。如： They make the bikes in the factory. The bikesin the factory.are madethemby主變被步驟:1.找賓語: 即動作的承受者(改為主語)He washed his car yesterday. His car3. 判斷新主語的單復數(shù):確定be動詞的單復數(shù). be4. 判斷動詞的時態(tài) : 即be動詞的時態(tài).2. 修改謂語的語態(tài):即be+原V.過去分詞 washed5. 修改原句的主語 :即by +主語(變賓格). (by him) yester

6、day.iswas was1. Amy can take good care of the cat 2. They should sing some beautiful songs.2. He bought his friend some fruits yesterday.His friend was bought some fruits (by him) yesterday.Some fruits were bought for his friend (by him) yesterday.1. He bought her a watch. A watch was bought for her

7、 (by him). She was bought a watch (by him).Practice:1 Must I pay for it at once?_ it _ _ _ at once?2 We will build a new lab.A new lab _ _ _.3 They arent stopping the traffic now.The traffic _ _ _ now.4 How long have you kept the book?How long _ the book _ _? Mustbepaidforwillbebuiltisntbeingstopped

8、hasbeenkept5. If your homework _(do) well, you may go to play.6. The ship model _ be _ (make) in two days.is donewillmade4). Well put on the play next Sunday5). Workers are building a new teaching building in our school6). They had completed the railway by the end of last year The play will be put o

9、n next SundayA new teaching building is being built by workers in our schoolThe railway had been completed by the end of last year 7). We should protect the earth8). You need to paint the wall The earth should be protected The wall needs to be paintedCorrecting mistake2.Correct the mistake(s) in each sentence if any:1)Two boys hurt while playing a ball2)The singer lived in London until he was sending to university3)How long do you think the meeting will be lasted?