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1、右屮英得得体一支通——名咦)性从句一.名祠柚从句的定丈.今类及特征在句中起到名词所能充当的句子成分的从句称之为名词性从句,名词常用来作主语、宾语、表语、同位语,因此,对应的名词性从句可以分为四大类:主语从句、宾语从句、表语从句、同位语从句。类别伶征丈语从句1、作句子主语的从句叫作主语从句。2、为避免句子头重脚轻,常用形式主语it代替主语从句,把主语从句置于句尾。常用的句型有:Itis/was+形容词/名词/过去分词+that从句。Whetherhecancometothepartyontimedependsonthetraffic.It'sagreatpitythattheydidn'tget
2、married.Itistruethatthemanontheleftisawell-knownwriterhere.Itisrequiredthatallmembersbepresent.宾语从句1、作句子宾语的从句叫作宾语从句。宾语从句在句中可以作及物动词或者介词的宾语C2、某些结构中可用it作形式宾语:(1)动词make,find,think,feel,consider,believe等后面接宾语补足语吋,常用的结构为:动词+it+宾语补足语(形容词或者名词)+宾语从句;(2)有些表示好恶的动词,^0:like,appreciate,dislike等带宾语从句时,需要在宾语从句前加it。
3、3、that引导宾语从句,一般不充当介词的宾语,但可作in和except的宾语,其它介词后要用形式宾语it。Hearingthathissonwasbadlywounded,hehurriedtothehospitaltoseehim.Therewasadiscussionaboutwhethertheproposalwaspractical.Ithinkitnecessary+hatwetakeplentyofboiledwatereveryday.Iwouldappreciate计verymuchifyouhelpedmew汁h计.Yourcompositioniswellwrittene
4、xceptthattherearesomespellingmistakes.Youcandependonitthathewillcometoouraid.家错从句位于系动词Z后作表语的从句叫表语从句。Theproblemiswhoistopayandwhenwecanstart.同保错以句同位语从句说明其前面名词的具体内容。通常由that引导,常接同位语从句的名词有:news,conclusion,possibility,rumor,certainty,story,word,mystery,idea,doubt,hope,truth,question,belief,fact,message,e
5、vidence,information,explanation,rule,probability,question,wish,thought,statement,report,opinion,principle等。ThenewsthattheUnitedStateswashitbyterroristattackstookthewholeworldbysurprise.Hemustanswerthequestionwhetherheagreestoitornot.二.名祠松从句引导彳司的用体连接词that,whether,if,asif,asthough连接代词what,which,who,wh
6、om,whose,whatever,whoever,whomever,whichever连接副词when,where,how,why1.that的用法®that在句中没有意义,在从句中不充当句子成分,只起到连接的作用。ItisdecidedthatthemeetingshouldbeputofftillnextMonday.(2)that引导动词后的宾语从句时,可以省略,但引导其它名词性从句时,不可以省略。但如果宾语从句是并列句时,引导第二个分句的that不可以省略。Hesaid(that)hewaslateforschoolagainandthattheteacherwouldpunishh
7、im.2.whether/if的用法whether可以引导四种名词性从句,讦只能引导宾语从句和不放在句首的主语从句,即用it作形式主语。在下列情况下只能用whether引导宾语从句:(1)作介词宾语;(2)whether...or(not)结构屮;(3)后接动词不定式。Thequestioniswhethertheycantakeouradvice.Itisstillaquestionwhethe