NounClausesNounClausesHowshouldweusemoderntechnology?Theproblemis…Theproblemishowweshouldusemoderntechnology.WhenwillmanbeabletoliveonMars?….isunknowntousall.WhenmanwillbeabletoliveonMarsisunknowntousall.Wherewillalltheseadvancedtechnologyleadus?Ican’timagine….Ican’timaginewherealltheseadvancedtechnologywillleadus.1.连接词有:thatwhether和lf2.连接代词有:whowhomwhosewhichwhat等3.连接副词有:whenwherewhyhow等另外whateverwhoeverwhichever等也可以引导主语和宾语两种从句。名词性从句是一种具有名词功能的非独立分句,可以表示:事实和问题。名词性从句中的that没有词义,也不作任何成分。除引导宾从外,主从和表从中不省从句一律保持陈述语序主语从句同位语从句表语从句宾语从句1.主语从句:从句在句中充当主语成分1)Thattheearthisroundistrue.2)Whetherhewillcomeisdoubtful.3)Whathesaidsurprisedmemost.4)Wherehehidthemoneyistobefoundout.5)Whoevercomesiswelcome.6)It’scertainthathewillsucceed.7)Howwecanhelpthetwinswillbediscussedatthemeeting.8)Whenthey’llstarttheprojecthasnotbeendecidedyet.It的用法:(形式主语)It’possible/important/necessary/clear…that……很可能/重要的是…/必要的是…/很清楚…It’said/reported…that…据说/据报道…It’sbeenannounced/declaredthat…已经通知/宣布…Itseems/appears/happens..that…显然、明显、碰巧…It’snowonderthat…并不奇怪/无疑…It’sapity/afact/acommonknowledge(众所周知)/acommonsaying….(俗话说)1.Whatyouleftareonlyseveraloldbooks.2.Whatyousaidisofgreatimportance.3.Whathesaysanddoesdoesn’tconcernme.4.Whathesaysanddoesdon’tagree.“if”不能引导主语从句,应有“whether”引导。主语从句的“that”一般不能省。“what”引导主语从句时,谓语动词:1)常与其后作表语的名词一致2)根据句子的语境而定。1.___hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where3.___isknowntousallisthatAmericaisadevelopedcountry____theFirstWorld.A.Which;belongtoB.As,belongedtoC.What;belongingtoD.It;belongingto4.It’sknowntousall___aformofenergy.A.waterisB.thatwaterisC.iswaterD.thatwaterto5.Itworriedherabit___herhairwasturninggray.A.whetherB.ThatC.whatD.when6.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave熟读深思1.主语从句定义:主语从句就是指在另一个句子中充当主语的句子。它由连接词that,whether及特殊疑问词连接。改错:(1)Whathewillcomeheretoseeusiscertain.(2)Ifheisfreenowisuncertain.(3)Itdoesn'tmatterhowhecanattendourmeeting.2.宾语从句:从句在句中充当宾语成分(可以作谓语动词、介词、不定式等非谓语动词的宾语)that,whether,if(that常可省略)连词:who,what,which,whoever,whateverwhen,where,why,how1).CanyoumakesurewhereAlicehasputthegoldring.2).Italldependsonwhethertheywillsupportus.3).Shewillgivewhoeverneedshelpawarmsupport.4).Hemadeitcleartothepublicthathedidanimportantandnecessaryjob.5).Ifinditnecessarythatweshoulddothehomework.归纳总结规则3:特殊疑问词连接从句时,特殊疑问词用来表示询问某种情况。它来源于特殊疑问句,特殊疑问词不能省略,在从句中充当句子成分。2.语序:主语从句要用陈述句语序,即主谓语序。3.时态:主句时态为过去时,从句时态为过去的某一时态;主句时态为现在时或将来时,从句时态视具体情况而定。willbegoeswereplayinghavereturnedhadbeen1.Theradiosaysit_______cloudytomorrow.(be)2.Theheadmasterhopeseverything______well.(go)3.Tomsaysthatthey_____________(play)basketballatsixo’clockyesterdayevening.4.Ihearthey_______________(return)italready.5.Hesaidthatthey_________membersofthePartysince1948.(be)wroteh...