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语法专项复习,-ObjectClause宾语从句,一、宾语从句的概念,宾语从句即句子作宾语,而不再是一个词或短语作宾语。Ilikemyteacher.(名词作宾语)Iknowhim.(代词作宾语)IknowMrLiteachesEnglish.(句子作宾语)包含宾语从句的句子结构:主句+连接词(引导词)+宾语从句,二、宾语从句三要素,连接词,时态,语序,(一)连接词,1.that2.whether/if3.连接代词whowhomwhosewhatwhich4.连接副词whenwhywherehow。,由从属连词that引导的宾语从句,注:that在句中无词汇意义,在从句中不能充当成分,在口语当中往往省略,e.g.Ihear(that)_.(一小时后他会回来)Hesaid(that)_.(他非常想念我们)Theteachertoldus(that)_.(地球围着太阳转),hewillbebackinanhour,hemissedusverymuch,theearthmovesaroundthesun,注意:当从句是客观真理的时候,无论主句什么时态,从句一律用一般现在时,由从属连词whether,if引导的宾语从句,e.g.1.Askhim_.(他是否能来)2.Idontknow_.(是否要下雨),whether(if)hecancome,whetheritisgoingtorainornot,当句末为ornot时,引导词只能用whether而不能用if.,If与whether的区别,Idontknow_hewillcomeornot.Idontcareof_heishandsome.Hewondered_tostayherethenextweek._hewillcomeisnotdecided.,与ornot连用只能用whether,介词后只能用whether,与todo不定式连用只能用whether,作主语只能用whether,由连接代词what,whom,whose,which,what及连接副词when,where,how,why引导的宾语从句,whenwellhaveameeting,whereheis,howIcangettothestation,whythetrainislate,whocouldanswerthequestion,whomtheyarewaitingfor,(二)语序:陈述句语序,即:陈述句结构(主+谓+其他成分)将下列句子换成陈述句语序1.Isthereabanknearhere?2.Aretheydoinghomework?,(三)时态(时态一致性)1.如果主句的时态是一般现在时,宾语从句的时态根据具体情况来确定,可以是_时态。Idontthink(that)youareright.Pleasetelluswherewellgofishingtomorrow.DoyouknowwhenMr.Smithmovedhere?,任何,2.如果主句的时态是一般过去时,宾语从句只能用相应的_时态(一般过去时,过去进行时,过去将来时,过去完成时)。例如:HetoldmethathewasborninBeijingin1992.HesaidthathewouldgobacktotheU.S.soon.,过去,3.如果宾语从句所陈述的是客观真理,即使主句用了过去时,从句仍用_时态。例如:Theteachersaidthattheearthmovesaroundthesun.,一般现在,三、宾语从句与简单句的转换(一)当宾语从句的主语和主句的主语相同,且主句的谓语动词是hope,wish,decide,agree,choose等时,从句可简化为不定式结构。eg:(1)IhopethatIcanreceiveyoure-mail.Ihopetoreceiveyoure-mail_.,(二)当宾语从句的主语和主句的主语相同,且主句的谓语动词是know,remember,forget,learn等时,从句可简化为“疑问词+不定式”结构。eg:(2)Shedoesntknowwhatsheshoulddonext.Shedoesntknow_.(三)当主句的谓语动词是ask,tell,show,teach等时,从句可简化为“疑问词+不定式”结构。eg:(3)WillyoupleaseshowmehowIcanworkitout?Willyoupleaseshowme_.(四)当直接引语为祈使句,变为间接引语时,用ask/tell/orderSb.(not)todosth结构。eg:(4)A:Pleasebequiet.B:WhatdidBillsay?A:Heaskedustobequiet.,whattodonext,howtoworkitout,四、否定转移在含有宾语从句的主从复合句中,当主句的主语为第一人称,谓语动词是think,believe,guess,suppose等时,要将从句的否定词转移到主句中,即主句的谓语动词用否定式,宾语从句的谓语动词用肯定式。eg:(5)Idontthinkhewillcomewithyou.注意:这种句子在其后接附加问句时,要特别小心。eg:(6)Idontbelievehehasfinishedthework,_?(7)HeknewwhyJimwasntatschool,_?解析:例6,当主句的主语为第一人称时,附加问句的主语由宾语从句的主语充当。例7,如果主句的主语非第一人称时,则附加问句的主语由主句的主语充当。,hashe,didnthe,Doyouknow_?A.wheredoessheliveB.sheliveswhereC.whereshelivesD.whereshelive2.Hisparentswantedtoknowwhathe_atthattime.A.isdoingB.wasdoingC.hasdoneD.willdo,C,B,巩固练习:,I从下列A、B、C、D中选择一个正确选项填空。,4Lilysmotherlookedforherforhalfanhour,butcouldnotfind_?whatLilywasB.whatwasLilyC.whereLilywasD.wherewasLily,C,3.Wedontknow_.-ItissaidthathewasborninCanada.whatheisB.whenhewasbornC.wherehecomesfromD.ifheliveshere,C,5Thegirlsaskedifthey_somefoodanddrinkwiththem.,A.tookB.takeC.takesD.willtake,6Lindasaidthemoon_roundtheearth.,A.travelledB.hastravelledC.travelsD.hadtravelled,A,C,7.Couldyoupleasetellme_hewillcomeheretomorrow?A.ifB.weatherC.whatD.which,A,8.Couldyoutellme_?,A.whenwilltheyleaveBeijing,B.whenwouldtheyleaveBeijing,C.whentheywillleaveBeijing,D.whendidtheyleaveBeijing,C,II.改错:,1.MissZhangaskedmewhywasIlateforschool.,_,MissZhangaskedmewhyIwaslateforschool.,2.Fathertoldmethesunalwaysroseintheeast.,_,Fathertoldmethesunalwaysrisesintheeast.,3.Hedoesntknowthatwhenshecancomeback.,_,Hedoesntknowwhenshecancomeback.,Theradiosaysit_cloudytomorrow.(be)Theheadmasterhopeseverything_well.(go)Tomsaysthatthey_(play)basketballatsixoclockyesterdayevening.Ihearhe_(return)italready.Hesaidthatthey_membersofthePartysince1948.(be)Heaskedwhatthey_ateightlastnight.(do)Theteachertoldhisclassthatlight_fasterthansound.(travel)Ithinkyou_abouttherelayracenow.(talk)Ididntknowwhomtheletters_from.(be),willbe,goes,wereplaying,hasreturned,hadbeen,travels,aretalking,were,weredoing,10.Ididntknowwhattimehe_theletter.(write)11.MissWangtoldmethattheearth_(move)roundtheearth.12.Couldyoutellmewho_awaythebookalready?(take)13.LingFengtoldmehe_toseveraltimes.(be)14.Ourteachertoldusinclassthesun_intheeast.(rise)15.Canyoutellmewhatthey_yesterday?(do),wrote,moves,hastaken,hasbeen,rises,did,将下列句子合并为一句:1.Wheredotheystopontheway?Iasked.2.Whatwillyousayatthemeeting?Couldyoutellme?3.Dotheyliketomakefriendswithus?Heasked.4.“Iamdoingmyhomework.”Hesaid.5.“Iwillcomeback.”Tomsaid.,Iaskedwheretheystoppedontheway.,Couldyoutellmewhatyouwillsayatthemeeting?,Heaskediftheylikedtomakefriendswiththem.,Hesaidthathewasdoinghishomework.,Tomsaidthathewouldcomeback.,6.“Ishedoinghishomework?”Jimasked.7.“Whenwillhecomeback?”Tomasked.8.“HowcanIgettothestation?”Couldyoutellme?9.“Whyisthetrainlate?”Wouldyoutellme?10.“WhereisTom?”Theyasked.,Tomaskedwhenhewouldcomeback.,CouldyoutellmehowIcangettothestation?,Wouldyoutellmewhythetrainislate?,
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