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1、Week14:名词性从句一.概念名词性从句共有四种:1.主语从句2.表语从句3.宾语从句4.同位语从句二.知识点1.主语从句：主语从句在整个句子中作主语。(1)主语从句中的that不充当句子的成分，只是单纯的连接词，通常不省略。分句置于句首时，that绝对不可以省略。Thatthedrivercouldnotcontrolhiswarwasobvious.Itwasobviousthatthedrivercouldnotcontrolhiscar.2.表语从句：表语从句出现在系动词后，充当表语。Thetroubleisthatweareshortofmoney
2、.Goandgetyourcoat.It’swhereyouleftit.引导表语从句除了上述三类词外还有because,asif/asthough等等Thereason(why/forwhich…..)isthat……It/This/Thatisbecause……连系动词“appear,look,seem”的两个常用句型Itseems/appearsthat….Itlooks/seemsasif/asthough……(与事实相符用陈述语气，与事实相反用虚拟语气)3.宾语从句：（that可以省略）及物动词，形容词和介词后加宾语从句作其宾语。宾语从句时态与主句相
3、呼应，但宾语从句表示的是客观真理或普遍现象除外Theteachertoldus(that)theearthmovesaroundthesunIamafraid(that)Ihavemadeamistake.Hewillhavetopayforwhathehasdone.当宾语从句后带宾补时，要用“主语+谓语+it+宾补+that+从句,that不可省略Ithinkitcertainthatshewilldowellinherexam.that在宾语从句常可以省略，但由and或but连接两个或多个宾语从句时，仅可以省略第一个连词thatHesaid(that)h
4、ehadeatennothingandthathewasn’thungry.注意区别if引导的宾语从句和条件状语从句Idon’tknowifhewillcome.（if是否）Ifhecomes,I’llletyouknow.（if如果）4.同位语从句：（that不可省略）对前面的名词进一步说明。用在下列名词fact,truth,news,idea,hope,belief,thought,doubt,order,suggestion,wordetc.TheteachertoldusthefactthattheearthmovesaroundthesunThere
5、isnodoubtthathewillcome.Thereisdoubtwhetherhewillcome.Hissuggestionthatwe(should)goforanoutingcheeredusup.WordcamethatNapoleonwouldcometoinspectthem.that引导的同位语从句与定语从句的区别：在同位语从句中：that不作成分，不可以省略；5在定语从句中：that作成分，且作宾语时可以省略Weareinterestedinthenewsthatsomeforeignerswouldvisitourschool.同位语
6、Weareinterestedinthenews(that/which)hetoldus.定语从句when,where引导的同位语从句与定语从句的区别：在定语从句中，when,where前有分别表示时间、地点的先行词；而在同位语从句中无此对应关系Theyhavenoideaatallwherehehasgone.(同位语从句)Goandgetyourcoat.It’sintheplacewhereyouleftit.(定语从句)三．注意点：1.疑问词whatever/whoever/however/whenever等既可以引导名词性从句，也可以引导让步状语从句
7、，而nomatter+疑问词只能引导让步状语从句总体规律：whatever/whoever等词的使用范围比nomatterwhat/who等要广Nomatterwhathappens,hewillnotmind.(√)让步状语从句（用逗号隔开）=Whateverhappens,hewillnotmind.(√)让步状语从句Nomatterwhatyousayisveryimportant.(×)Whateveryousayisveryimportant.(√)主语从句（名词性从句）Ibelievewhateverhesays.Whateverhesays,Iw
8、illneverbelievehim.
