NounClauses名词从句主语从句（Nounclausesassubject)一.概念在复合句中用作主语的从句叫做主语从句。二.引导主语从句的关联词：引导主语从句的关联词有从属连词，连接代词和连接副词。从属连词词形词义在从句中所作的成分that无无whether是否无连接代词who(whoever)（无论）谁主语，表语whom(whomever)（无论）谁宾语whose(whosever)（无论）谁的定语what(whatever)（无论）什么主、宾、表、定语which(whichever)（无论）那个主、宾、表、定语连接副词when什么时候状语where在哪里状语how怎样，怎么状语why为什么状语三.主语从句的特殊句式1.主语从句在句中作主语时，它的位置一般在句首；但主语从句较长时，为了使句子前后平衡，常把主语从句移至句末，而用it作形式主语.其中what，whatever和whoever引导的主语从句除外。这类句型常用的有：1).Itbe+形容词（obvious,true,certain,funny,possible,surprising,naturaletc.)eg.Itiscertainthatshewilldowellinherexam.Itisprobablethathetoldhereverything.2)It+be+名词词组（apity,ashame,aproblem,nowonder,nosurprise)+主语从句。eg：It’sapitythatwecan’tgo.It’sstillaproblemwhethertheywillgo.3)It+be+过去分词（said,reported,thought,expected,decided,announced,well-known)+从句。egs：ItissaidthatMrGreenhasarrivedinBeijing.ItisreportedthatChinahassentanotherman-madesatelliteintoorbit.4)Itseem;happen等不及物动词及短语＋主语从句。egs：ItseemsthatAlicewillnotcometothepartyatall.IthappenedthatIwasoutthatday.5)Itdoesn’tmatter(makesnodifferenceetc.)+主语从句eg：Itdoesn’tmatterwhethershewillcomeornot.Itmakesnodifferencewhereweshallhavethemeeting.四.由连接代词whoever，whatever等引导的主语从句意义不同于who，what引导的主语从句意义。以who，whoever为例，who只有它本身的疑问含义“谁”，whoever相当于anyonewho五.注意事项1.主语从句永远用陈述语序，主谓不倒装，但引导词要放在从句开头。eg：Whereshelivesisasecret.2.主句谓语动词的数在含有一个主语从句的主从复合句中，主句的谓语动词一般用单数形式，eg：Thatweneedmorecarsisobvious.但在关系代词what引导的主语从句后，谓语动词的数要根据句意而定。eg：Whatweneedismoretime.Whatweneedaremorecomputersegs：1.Whoevercomeswillbewelcome(whoever=thepersonwho).2.Whateverhedidwasright(whatever=thethingthat).1._______the2000OlympicsgameswillbeheldinBeijingisnotknownyet.A.WheneverB.IfC.WhetherD.That2.___wecan’tgetseemsbetterthan___wehave.A.What,whatB.What,thatC.That,thatD.That,what3.Itworriedherabit____herhairwasturninggray.A.whileB.thatC.ifD.for4.____isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It5.Itwas____hesaid_____disappointedme.A.what,whatB.that,thatC.what,thatD.that,what典型错例分析1.Thatshewantstoknowiswhichdresssheshouldbuy.2.Hewillgiveuphisjobsurprisesallofus.3.Nomatterwhobreaksthelawwillbepunished.4.Ifthemeetingwillbeheldinourschoolisnotknownyet.5.Thatworriedherabitthathecouldn’tgetintouchwithherfriend.6.HeissaidthathehasgonetoAmerica.错误原因1.没有分析清楚that和what引导主语从句时的作用。如(1),know为及物动词，其后缺宾语，应用what引导主语从句。2.不知主语从句的引导词that不能省略。如(2),hewillgiveuphisjob的主、谓、宾结构完整，意义也完整，只许that引导主语从句，但不能省略。3.混淆“nomatter+疑问词”和“疑问词＋ever”的用法。“nomatter＋疑问词”不能引导主语从句，引导主语从句的应为“疑问词＋ever”。如（3）。又如：Whoeverhashelpedtosavethedrowninggirlisworthpraising.(此时不能用nomatterwho）4.不知whether和if的区别。引导主语从句只能用whether，不能用if表“是否”意义。5.不知形式主语it指代主语从句的用法。如（5)（6)。宾语从句1.that引导，通常that可以省略Shehastoldu...
