牛津英语8B Unit3.ppt

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1、被动语态牛津英语8BUnit3Weusethekeyboardtotype.=Thekeyboardisusedtotypebyus.Weusetheprintertoputthewordsandpicturesontopaper.=Theprinterisusedtoputthewordsandpicturesontopaperbyus.被动语态的构成主语+be+过去分词+其他Thesimplepresenttense:(一般现在时)Iam(not)CaughtYou/We/Theyare(not)She/He/Itis(not)Thesim

2、plepasttense:(一般过去时)Iwas(not)CaughtYou/We/Theywere(not)She/He/Itwas(not)带情态动词的被动语态：Ican(not)may(not)must(not)should(not)beCaughtYou/We/TheyShe/He/It被动语态的谓语动词形式时态　动词的被动形式　　　　例　　　　句一般现在时amisaredoneHeisaskedtodothis.一般过去时wasweredoneTheroomwascleanedbyhermother.一般将来时willbedon

3、eThetreeswillbecutdowntomorrow.现在进行时amisarebeingdoneThebookisbeingwritten.过去进行时waswerebeingdoneAtthattimethedeskwasbeingmade.现在完成时havehasbeendoneThebuildinghasbeenbuilt.过去完成时hadbeendoneHesaidthathishomeworkhadbeendone.过去将来时wouldbedoneTheysaidthetreeswouldbeplantedsoon牛津8

4、BUnit3被动语态英语动词的语态⑴主动语态：主语是动作的执行者⑵被动语态：主语是动作的承受者例：WespeakEnglish.（主动语态）主　谓　宾Englishisspokenbyus.（被动语态）主　　谓介词+宾语主动语态被动语态Wecleantheclassroom.Theclassroom________byus.Sheclosedthewindow.Thewindow________byher.Hewrotealetterlastnight.Aletter________byhim.主动语态改为被动语态的方法1..把主动句中的宾语改

5、成被动句的主语,原主语改成宾语．2动词改为被动形式be+P.P(同时注意时态)．3原来的主语如果需要的话放在介词by后面，以指明做事的人或物，如果没有必要则省去．.例：(1)WespeakEnglish.（主动语态）主谓宾Englishisspokenbyus.主谓介词+宾语(2)Themankilledatiger.Atigerwaskilledbytheman.特殊句型的被动语态一双宾语give,pass,show，teach,tell等动词常常带有两个宾语即双宾语：直接宾语和间接宾语，改为被动语态时，可以选其中任何一个作主语。如果直接宾语

6、作主语，那么间接宾语前要加相应的介词to/for。但ask,answer后的双宾语，一般将间接宾语（人）变为主语；buy,make等后的双宾语，一般将直接宾语（物）变为主语．例：①Hegavemeapen.=Hegaveapentome.间直直间→Iwasgivenapenbyhim.间→Apenwasgiventomebyhim.直②Mymotherboughtmeanewcoat.=Mymotherboughtanewcoatforme.→Anewcoatwasboughtformebymymother.特殊句型的被动语态二　使役动词（ma

7、ke/let/have）或感官动词（hear,see,listento,find,watch,feel等），在主动语态中，其后作宾语补足语的不定式不带to，但是在改成被动语态时必须加to，另外help在主动语态中后面的动词不定式可以带to,也可不带to,但在被动语态中也必须加to。例：①Motheroftenmakesmedosomehousework.→Iamoftenmadetodosomehouseworkbymother.②Wesawhimrunintotheclassroom.→Hewasseentorunintotheclassro

8、ombyus.特殊句型的被动语态三　复合宾语含有宾语补足语的句子改为被动语态,只能把宾语作为被动语态的主语。（宾补放在原来位置不变）例：①Wecall