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1、八、名词性从句考点1主语从句1.that连接主语从句时,没有具体意思,不充当句子成分,只是起标志性的作用,但that不能省略。what引导时,既要在从句中充当成分,又有意义。*Itneveroccurredtomethatyoucouldsucceedinpersuadinghimtochangehismind.我从来没想到你会成功地说服他改变主意。2.whether连接从句时,表示怀疑,不能省略,意为“是否”,在句首时不能用if替换。*Itisstillunderdiscussionwhethertheoldbusstationshouldbereplacedwithamod
2、ernhotelornot.旧汽车站是否应该被重建为现代化的宾馆仍然在商讨中。3.连接代词、连接副词引导主语从句时不能省略,并在从句中充当句子成分。*Itwasneverclearwhythemanhadn’treportedtheaccidentsooner.这个人为什么没有尽快报告这个事故,还不清楚。4.主语从句要用陈述语序,即主谓语序。【点津】(1)用it作形式主语的常用句型有:①It+系动词+形容词(necessary/right/likely/unlikely/wrong/important/certain等)+that从句②It+be+名词(短语)(apity/as
3、hame/nowonder等)+that从句③It+be+过去分词(said/told/reported/decided等)+that从句④It+特殊动词(seems,appears,happens,matters)+that从句*ItisapitythatImissedthepartyheldlastnight.很遗憾我错过了昨晚举行的聚会。*Itisreportedthattheaccidentwascausedbycarelessness.据报道,该事故源于(司机的)粗心驾驶。(2)在Itisnecessary/important/suggested/advised/or
4、dered+that从句结构中,从句用“(should+)动词原形”。【典例剖析】用适当的连词填空(2015·广东高考)Nowitoccurredtohim________hisfarmhadmuchpotentialandthatthedeathofthecowwasabitofluck.解题关键:固定句型“itoccurredtosb.+that从句”表示“某人突然想到”,it是形式主语,真正的主语是that引导的从句。答案判定:that【高考题组】用适当的连词填空1.(2016·江苏高考)Itisoftenthecase____anythingispossiblefort
5、hosewhohangontohope.2.(2015·全国卷Ⅱ)Itstruckme____playingagainsttheotherteamwasagreatlearningmomentforallthegirlsontheteam.thatthat3.(2015·陕西高考)Ifoneislateforajobinterview,itisnotlikely____hewillgetthejob.4.(2014·全国卷)Exactly_____thepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround
6、1565.5.(2013·湖北高考)_____delightedthefanswasthattheyoungplayerperformedextremelywellinthetabletennistournament.thatwhenWhat考点2宾语从句1.that连接宾语从句时通常可以省略(但多个并列的宾语从句中只能省略第一个that),没有具体的意思,不充当句子成分,只是起连接作用。what引导时,既要在从句中充当成分,又有意义。*I’mwritingtotellyouthatmyuncleisgoingtoyourcityforaconference.我写信是想告诉你我
7、叔叔要去你的城市开会。2.在whether/if连接的宾语从句中,whether/if意为“是否”(但在whether...ornot结构中,或者whether引导的宾语从句作介词的宾语时,以及whether+todo结构中和whether引导的从句作少数动词(如leave,put,discuss,doubt,know等)的宾语时,只能用whether,不能用if来替换)。*We’veofferedherthejob,butIdon’tknowwhethershe’llacceptit.我们
