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ID:49684909
大小:1.01 MB
页数:23页
时间:2020-02-27
《人教版高一英语上册课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、WelcometoourclassGrammarPassiveVoice被动语态Tombrokethewindow.(主动语态)① ② ③ThewindowwasbrokenbyTom.(被动语态)③ ② ①英语的谓语动词有两种主动语态(ActiveVoice)被动语态(PassiveVoice)(前者表示句子的主语为动作的发出者,后者表示句子的主语为动作的承受者。)从以上对比可以看出,主动句中的主语Tom在被动句中变成了短语by
2、Tom,主动句中的宾语thewindow变成了被动句中的主语。由于被动句中的主语即主动句中的宾语,因此,只有及物动词才有被动语态。主动句转换为被动句,主动句的宾语变为被动句的主语,而主动句的主语则变为由“by+动作的发出者”在被动句中做状语。种语态被动语态基本构成:be+动词的过去分词被动语态的构成1.一般现在时am/is/are+动词的过去分词TheTVsetismendedbyTom.2.一般过去时was/were+动词的过去分词TheTVsetwasmendedbyTom.3.一般将来时shall/wil
3、lbe+动词的过去分词TheTVsetwill/shallbemendedbyTom.4.一般过去将来时should/wouldbe+动词的过去分词HesaidtheTVsetshould/wouldbemendedbyTom.5.现在进行时am/is/arebeing+动词的过去分词TheTVsetisbeingmendedbyTom.6.过去进行时was/werebeing+动词的过去分词TheTVsetwasbeingmendedbyTom.7.现在完成时have/hasbeen+动词的过去分词TheTV
4、sethasbeenmendedbyTom.8.过去完成时hadbeen+动词的过去分词TheTVsethadbeenmendedbyTom.9.情态动词:情态动词+be+动词的过去分词TheTVsetcanbemendedbyTom.总结时间一般进行完成现在is/aremended被修is/arebeingmended正在被修have/hasbeenmended已经被修过过去was/weremended(过去)被修was/werebeingmended(过去)正被修hadbeenmended(过去)已被修过将
5、来shall/willbemended将要被修过去将来should/wouldbemended(过去)将要被修1.被动语态的各种时态均由助动词be的变化构成。2.人称和时态的变化体现在be动词上,而过去分词在任何时态中都不改变。3.被动语态的否定式和疑问式均由助动词或第一个助动词构成。buildnewflyoverseveryyearNewflyoversarebuilteveryyear.Describethepictures,usingpassivevoice.buildcastle18thcenturyT
6、hecastlewasbuiltinthe18thcentury.TheWorldExpowillbeheldinShanghaiintheyear2010.Hesaidthattheantisepticmasksshouldhavebeenwornduringthesedays.He,antisepticmask,thesedaysThepictureisbeingpaintedbythelittlegirl.paintpictureThemousewasbeingchasedbythecatwhenIcam
7、einyesterday.chaseyesterdayIcomeinThepicturehasbeendrawnbythelittlegirl.Sally,say,buy,weddingring,weddingSallysaidtheweddingringhadbeenboughtbeforethewedding.不知道或没必要知道动作的执行者。Thebookwasfirstpublishedinthelate1990s.b)不便说出动作的执行者。Theplanwasgenerallyconsideredimp
8、ractical.c)突出动作的承受者。Sheisrespectedbyalltheworkersofthefactory.d)汉语中的无主句,在英语中用被动语态。Smokingisnotallowedinpublicplaces.e)为了保持主语的一贯性。Theoldprofessorwheeledhimselfintotheclassroomandwaswarmlyapplaude
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