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1、ObjectClauses宾语从句1.宾语从句中的连接词that在以下三种情况下不能省略:(1)当that从句与另一名词性从句并列作宾语时,第二个that不能省;(2)当that作介词宾语时,that不可省掉。(3)用it做形式宾语的宾语从句Everyoneknewwhathappenedandthatshewasworried.Thereasonliesinthatsheworksharderthantheothersdo.IthinkitnecessarythatyoushouldreadEnglishaloud.2.whether与i
2、f的辨用表“是否”时,在下列情况下用whether。a.主语从句b.表语从句c.同位语从句d.介词后的宾语从句e.后接动词不定式(whethertodosth.)f.whetherornot连在一起引导宾语从句时不用if3.当宾语从句是特殊疑问句时,由连接代词(what,who,whom,which,whose)或连接副词(when,where,how,why)引导,因为连接代词或连接副词在从句中担任一定的句子成分,具有一定的意义,所以不可以省略Doyouknowwhathesaidjustnow?Idon’trememberwhenwe
3、arrived.IaskedhimwhereIcouldgetsomuchmoney.Pleasetellmewho(whom)wehavetosee.Doyouknowwhattimetheplaneleaves?带how的词组也都可以引导宾语从句Couldyoutellushowoftenyougoabroadforaholiday?Couldyoutellushowlongthemeetingwilllast?Idon’tknowhowfaritistothecinema.Pleasetellushowmanystudentsther
4、eareinyourschool?Canyoutellushowoldhisbrotheris?Pleasetellushowsoonyouwillbeready.CouldyoutellushowmuchitcoststoflytoHainan?4、时态(1)如果主句是现在的时态(包括一般现在时,现在进行时,现在完成时),从句的时态可根据实际情况而定,(包括一般现在时,一般过去时,一般将来时,现在完成时等)Iknowheliveshere.Iknowhelivedheretenyearsago.Ihaveheardthathewillco
5、metomorrow.(2).如果主句是过去的时态(包括一般过去时,过去进行时),那么从句的时态一定要用相对应的过去的某种时态(包括一般过去时,过去进行时,过去将来时,过去完成时)Iknewhelivedhere.Isawshewastalkingwithhermother.Heaskedwhetherhisfatherwouldcomebacktomorrow.Hesaidthathehadseenit.(3).当从句是客观真理,定义,公理,定理时用一般现在时。Theteachersaidthatthesuntravelsaroundth
6、eearth.5.否定的转移:若主语谓语动词为think,consider,suppose,believe,expect,guess,imagine等,其后的宾语从句若含有否定意义,一般要把否定词转移到主句谓语上,从句谓语用肯定式。Idon’tthinkthisdressfitsyouwell.(我认为这件衣服不适合你穿。)6.it作形式宾语(1)it放在动词think,find,consider,believe,feel,make等后作为形式宾语:而真正的宾语-that从句则放在句尾。Wehearditthatshewouldgetmar
7、riednextmonth.Hefeelsithisdutythatheshouldservethepeopleheartandsoul.(2)有些动词(短语),如enjoy,love,like,hate,appreciate,take,hide,seeto,insiston,dependon,relyon等带宾语从句时习惯上在从句前加形式主语it.Ihateitwhenpeopleaskmeformoney.Ilikeitintheautumnwhentheweatherisclearandbright.Iwillappreciateit
8、ifyoucangivemeahand.7.在demand,order,suggest,advise,decide,request,command,insist等表示要求、命令、