主动语态变为被动语态专项练习（一）、当我们不知道谁是动作的执行者；（二）、或者只需强调动作的承受者时，要用被动语态。主动语态变被动语态步骤：1、主语和宾语交换位置（即将原来的主语变为宾语、将原来的宾语变为主语）；2、谓语动词变为“be+V 过去分词”;3、主动语态中的主语变为介词by 的宾语。一般现在时的被动语态：am/are/is+V 过去分词playfootballallovertheworld..Greenteachesusthisterm.oftenplaybasketballafterclass.useknivesforcuttingthings.oftenhelpshismothertodohousework.usecamerasfortakingphotos.don'tmakecarsinthisfactory.shewashtheclothes?一般过去时的被动语态：was/were+V 过去分词builttheGreatWalllongago.yearsagoweusedthemachinestomakeshoesforchildren.watchedamatchonTV.washedthecaryesterday.teacheraskedthestudenttobringsomephotos.sentapostcardtomeyesterday.boysdidn'tdotheirhomework.youcleantheroomlastnight?一般将来时的被动语态：is/am/aregoingto+be+V 过去分词或will+be+V 过去分词willwriteadiarynextclass.isgoingtoholdabirthdayparty.willhaveatesttomorrow.willteachmewithmyEnglish.willborrowabookfromthelibrary.'mgoingtobuyacarnextyear.aregoingtofinishtheworksoon.won'tseeamoviethisSunday.yougoingtobuyacomputer?含有情态动词的被动语态：情态动词(can/must/should/haveto)+be+V 过去分词havetofinishourhomeworkontime.musthandinyourhomeworkontime.shouldplantmoretrees.couldplaytheviolinwhenhewas7.shouldspeaktotheoldmanpolitely.shouldallowchildrentochoosetheirownclothes.can'tseethesunatnight.带有双宾语（宾语既有人又有物）的被动语态:（1）将间接宾语（人）变为主语，直接宾语（物）不变。（2）将直接宾语（物）变为主语，一般要在间接宾语前加介词to 或for.oftengivesmeaflower.mymothertoldmeaninterestingstory.willbuymeapresent.Xuteachesusphysics.drewhimapicture.oftenmakesmeapostcard.'llbuyhimabighouse.usuallyhearhersingEnglishsongsinthemorning.makesherhorseworkallday.makesherhorseworkallday.感官动词(make,let,have)和使役动词(see,lookat,watch,notice,hear,listento)变为被动语态时要把省略了的 to 还原出来。感官动词:makesbdosthletsbdosthhavesbdosth使役动词:seesbdosthlooksbdosthwatchsbdosthnoticesbdost...
