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1、名词性从句完美讲义第一节相关概念一、定义：在复合句中相当于一个名词，做主语、宾语、表语、同位语的从句。二、引导词：1.连词:that,if,whether,asif2.连接代词:who,what,which,whose,whom以及whoever,whatever,whichever等3.连接副词:when,where,why,how，whenever,wherever,however等三、各类名词性从句的特征：主语从句表语从句宾语从句同位语从句练习：辨别下列名词性从句的类别。1.Howthebookwillselldepends
2、onitsauthor.2.JohnsaidthathewasleavingforLondononWednesday.3.Thefactisthathehasnotbeenseenrecently.4.Thefactthathehasnotbeenseenrecentlydisturbseveryoneinhisoffice.5.HewilltalktousaboutwhathesawinU.S.6.ItisimpossiblethatIgoandattendthemeeting.第二节主语从句1． 定义：在复合句中作句子主语的从
3、句叫做主语从句。2． 连接词：引导主语从句的连接词有三类：连词that、whether;疑问代词who,what,which，whom,whose,whatever,whoever,whomever,whichever;疑问副词when,where,how,why，however,whenever,wherever等⑴连词that（无词意）,whether(是否),在从句中不充当句子成分，只起连接作用;whether能引导主语从句，而if不能。Thatyoudon’tlikehimhasnothingtodowithme.Whet
4、herJohnwilldothisexperimentremainsaquestion.a.Thatthewoundedsoldierisstillaliveisawonder.→Itisawonderthatthewoundedsoldierisstillalive.常见的句型有：①Itis/was+形容词+that从句It’sunlikelythat…不可能It’sstrangethat…奇怪的是……②Itis/was+名词+that从句It’sapitythat…遗憾的是……It’safactthat…事实是……③It+不及
5、物动词+that从句Itseemsthat…似乎……Ithappenedthat…碰巧……Itappearsthat…看来……Itturnsoutthat…结果……④Itis/was+过去分词+that从句It’snotknownthat………不得而知It’ssaidthat…据说……⑤其他Itdoesn’tmatter+that/wh-Clause…是无关紧要的Itmakesnodifference+that/wh-Clause…毫无区别……9⑵疑问代词who,what,which,在从句中既作连接词又充当主语、宾语、表语、定语
6、等。Whatsurprisedmemostwasthatsuchalittlegirlcouldplaytheviolinsowell.Whosedictionaryhasnotbeenfoundisstillunknown.Whoeverwantsthisbookmaytakeit.⑶疑问副词when,where,how,why，whenever,however,wherever等在从句中充当时间状语、地点状语、方式状语、原因状语如：Whentheywillstarthasn’tbeendecidedyet.Wherethehe
7、roinewentisnotmentionedattheendofthestory.第三节表语从句1． 定义：用作表语的从句叫做表语从句。2． 引导表语从句的连接词种类：(1) 连词that，whether（无if）that在引导表语从句时无词义，而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question(问题)，trouble(麻烦)，problem(问题)，result(结果)，chance(可能性)，suggestion(建议)，idea(想法)，reason(理由)等。表语从句对主句主语
8、进行说明、解释，使主语的内容具体化。Thetroubleis(that)shehaslosthismoney.麻烦的事是他丢了钱。Thequestioniswhetherweneedmoreicecream.问题是我们是否还需要一些冰淇淋。我们不能
