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《高考英语语法考点聚焦--名词性从句》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、高考英语语法考点聚焦--名词性从句w一、考点聚焦1、名词性从句中连接词的运用名词性从句中的连接词有连词that/whether/asif,连接代词what/who/which/whose/whatever/whoever/whomever/whichever,连接副词where/when/why/how/wherever/whenever。(1)that的用法。①主语从句、表语从句、同位语从句中用that但不能省略。如:ThattheyaregoodatEnglishisknowntousall.Theproblemisthatwedon’thaveenoughm
2、oney.SheexpressedthehopethattheywouldcometoChinaoneday.②宾语从句中的连接词that有时可省有时又不可省,在以下几种情况中that不能省略:(A)当that从句和主句谓语动词之间有插入词语或者从句主语之间有插入语时,that不可省略;(B)当that从句与另一名词性从句并列作宾语时,that不能省;(C)当that作介词宾语时,that不可省掉。如:Hejudgedthat,becausehewasachild,hedidnotunderstandwineEveryoneknewwhathappenedandt
3、hatshewasworried.Thereasonliesinthatsheworksharderthantheothersdo.③that从句作主语和宾语时,可以用it来替换成以下几种结构表达。(A)Itisclear/certain/likely/true/surprisingthat…(B)Itisapity/shame/goodidea/nowonderthat...(C)Itissaid/reported/believed/known/thought/suggestedthat…(D)Itseems/happensthat。如:Ithappenedth
4、atIwentoutlastnight.ItissaidthatChinawillwinintheWorldCup.④that和what的区别。that引导名词性从句时,在主从句中不以当任何句子成分,也没有任何含义;而what引导名词性从句时,在主从句中都要充当一定的句子成分,what可以分解成定语从句中的先行词+关系代词即常说的先行词+that。如:It’sshamethathehasmadesuchamistake.Dowhathesays.⑤同位语从句与定语从句中that的区别。同位语从句中的连词that只起连接作用,在从句中不担当任何句子成分;而定语从句中
5、的关系代词that在句中做宾语或主语,宾语与先行词有修饰关系。如果句子是同位语从句,就应用连词that而不能用which.同位语从句一般放在表具体含义的名词后解释名词的含义或内容,如以下名词:news、fact、suggestion、truth、plan、belief、doubt、possibility、idea等,而定语从句只是对先行词的限定和修饰。如:TheyexpressedthehopethattheywouldcometovisitChinaagain.(同位语从句)Thehopesheexpressedisthattheywouldcometovisi
6、tChinaagain.(定语从句)(2)whether和if的用法。①whether和if在宾语从句中可以互换,但是作介词宾语时连接词一般用whether。如:Italldependsonwhethertheywillcomeback.②后面直接跟ornot时用whether。如:Ididn’tknowwhetherornothehadarrivedinWuhan.③主语从句表语从句中只能用whether。如:Whetherthemeetingwillbeputoffhasnotbeendecidedyet.Thequestioniswhethertheyhav
7、esomuchmoney.④whether可以引导同位语从句,用以说明前面的名词的内容,if不能。如:Weoughttodiscusscarefullythequestionwhetherwecandoitornot.⑤whether常与or连用表示一种选择,if不能这样用;whether也可与动词不定式连用但if不能。如:Thequestionofwhethertheyaremaleorfemaleisnotimportant.Ihavenotdecidedwhethertogoornot.⑥间接引语位于句首时或者是间接引语提前时用whether不用if。如:T
8、hanky
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