NCE2_Lesson21（共16页）课件PPT

这是一份NCE2_Lesson21（共16页）课件PPT，共16页。PPT课件主要包含了被动语态，一般现在时的被动语态，Some cakes，are made，by mother，主动语态等内容，欢迎下载使用。

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What are aerplanes ding t the writer? Where des he live? What can be heard night and day? When was the airprt built? Des he knw why it wasn’t used then? When did it cme int use? Hw many peple must have been driven away by the nise? Is the writer the nly persn left?What des he smetimes think? Why d peple think the writer is mad?
Key structures
drive sb. Mad (crazy)/ drive away frm / drive a car passing planes 现在分词作定语 a sleeping baby fr sme reasn / fr different reasns / fr ne reasn r anther cme int use / be ut f use / be used as/fr/by ver ne hundred / mre than / less than ne f the few … left / a few / a little / little hme / huse / family a large sum f / a large number f be determined t = decide t … 各种时态的被动语态小结
1)概念: 英语动词有两种语态,即主动语态和被动语态.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2)结构: 主语+ 助动词 be+及物动词的过去分词+其它3)时态要求:助动词 be 必须与主语的人称和数一致, 常用的时态有八种.4)用法:在不知道谁是动作的执行者,或者没有必要指出谁是动作的执行者.
被动语态: 主动语态表示主语是动作的执行者,宾语是动作的承受者。当动作的承受者作主语时,就构成被动语态。 构成： be+动词的过去分词1. We speak English. English is spken by us. 2. Mther makes sme cakes.
2. They bught ten cmputers last term．
Ten cmputers were bught (by them) last term.一般过去时：S+was/were +过去分词
3．Amy can take gd care f Gina ．
Gina can be taken gd care f by Amy.情态动词：S+ can/may/must/shuld + be+过去分词
4.They will finish the wrk in ten days.
The wrk will be finished (by them)in ten days.一般将来时：S+ will+be+过去分词
5.Sme wrkers are painting the rms nw．
The rms are being painted by sme wrkers nw.现在进行时： S+ am/is/are + being +过去分词
6．We have made twenty mre keys．
Twenty mre keys have been made by us.现在完成时： S+ have/has + been+过去分词
7．I was ding my hmewrk at 8:00 last night．
My hmewrk was being dne (by me) at 8:00 last night.过去进行时： S+ was/were+being+过去分词
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（过去分词）S+was/were +P.P.S+ can/may/must/shuld + 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.
Is the writer really mad? Why?
如果你是作者的邻居，复述小故事，并谈谈您的看法
live, passing plane, be heard, drive …mad, be built, can nt be used, came int use, must have been driven away, neighbur, nly, left, will be kncked dwn, have been ffered, is determined t, prbably, he must be mad,
D mre exercises n p. 95
1. c 2. d 3. c 4. d 5. a 6. c 7. b 8. b 9. a 10. d 11. c 12. c