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1、各种时态和语态的结构:1.do/doesàam/is/are+done2.didàwas/were+done3.am/is/aredoingàam/is/are+being+done4.was/were+doingàwas/were+being+done5.willdoàwillbedoneam/is/aregoingtodoàam/is/aregoingtobedone6.woulddoàwouldbedonewas/weregoingtodoàwas/weregoingtobedone7.have/hasdoneàh
2、ave/hasbeendone8.haddoneàhadbeendone含情态动词的主动和被动:情态动词+doà情态动词+be+doneExercises:1.Icleanmyroomeveryday.2.Icleanedmyroomyesterday.3.Iamcleaningmyroomnow.4.Iwillcleanmyroomthisevening.5.Ihavejustcleanedmyroom.1.Youcancleanyourroomtomorrow.Moreexercises:1.Peopleusekni
3、vesforcuttingthings2.Theyfilledtheboxwithbooks.3.Theymakethebikesinthefactory.4.PeoplespeakEnglishinmanycountries.5.Theywillpaintthehouseagainnextyear.6.Ihavetoldthechildrenmanytimesnottoplaywithfire.7.Theworkersarerepairingthebridge.8.Youmustfinishthearticlebefo
4、reFriday.9.Heisteachingushowtooperatethenewmachine.10.Theyhaverepairedthebridge.11.Myfatherwrotethebook12.Wemustdosomethingtohelpher.13.Ourvillagehasbuiltaplasticfactory.14.WecallhimJim.15.Wemusttakegoodcareoftheyoungtrees.16.Mymothermademeacake.17.Wesawhimentert
5、heclassroom.18.Isawthemplayingfootball.19.ImadehimjointheEnglishCorner.20.Ioftenhearhersinginthenextroom.将主动语态变被动语态应注意几个特殊情况:一、含双宾语的主动结构变为被动结构时,有两种方法:①将间接宾语变为主语,直接宾语保持不变;②将直接宾语变为主语,间接宾语用介词to或for引导。例如:Myfathergavemeanewbookonmybirthday.→Iwasgivenanewbook(bymyfathe
6、r)onmybirthday.(间接宾语作了主语)→Anewbookwasgiventome(bymyfather)onmybirthday.Mothermademeanewskirt.àAnewskirtwasmadeforme.*在下列动词后,通常在间接宾语前用介词to:give,lend,offer,pass,send,show,tell等。在下列动词后,一般在间接宾语前用介词for:buy,cook,get,make,sing等。二、短语动词的被动语态:在变为被动语态时,要将短语动词视为一个整体,其后的介词或副词
7、不能省去。例如:Thepatientisbeingoperatedon.Theoldaretakengoodcareofinthiscountry.Thisdictionarymustn'tbetakenawayfromthelibrary.三、含复合宾语(宾语+宾补)的主动句改为被动句时,一般把主动句中的宾语改为主语,而宾语补足语保留在谓语动词后面成为主语补足语。如:Wealwayskeeptheclassroomclean.我们总是保持教室清洁。--Theclassroomisalwayskeptclean.教室总是
8、保持清洁的。Theyaskedmetohelpthem.àIwasaskedtohelpthem.Wesawthemplayingfootball.àTheywereseenplayingfootball.注意:1.在see,watch,hear,notice,listento,lookat,make,feel等动词