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名词性从句名词性从句主语从句宾语从句表语从句同位语从句主语从句在句中做------宾语从句在句中做------表语从句在句中做------同位语从句在句中-----主语宾语表语同位语1.Thathewillcomeiscertain.2.Iknowthathewillcome.3.ThetruthisthatIhavebeenthere.4.Thefactthatshewaslatesurprisedus.主语从句宾语从句表语从句同位语从句Whowillwinthematchisstillunknown.Iwanttoknowwhathehastoldyou.Thefactisthatwehavelostthegame.Thenewsthatwewonthegameisexciting.主语从句宾语从句表语从句同位语从句2.引导名词性从句的连接词可分为三类:从属连词（3）：that,whether,if连接代词(5):what,who，whom，whose,which.连接副词(4):when,where,why，how注意:已确定的事由that引导;没决定的事由whether引导.3.名词性从句的语序问题：陈述语序Doyouknow_______?A.whatishisnameB.howishisnameC.whathisnameisD.howhisnameis主语从句1.ThatheknowsJapaneseisknowntoall.3.Whenhewillcomeisunknown.4.Whetherheiscomingdoesn’tmattermuch.5.Itisapitythathehasmadesuchamistake.主语太长了!放到句尾That无词义,不可省略What“什么”,“所….的”2.Whatsurprisedmewastoseehimhere.When“什么时候”主语从句放句首不用if位于句首主语从句的位置1.在句首2.主语较长时通常放在后面,句首主语用ItIt作主语的常用句型有:1.It+be+形容词+that从句Itisclear,obvious,true,possible,certain…that...（注意没有itissurethat）2.It+be+名词词组+that从句Itisapity(ashame/anhonor/agoodthing/afact/asurprise/...)that...3.It+be+过去分词+that从句Itissaid(reported/believed/thought....)that...4.It+不及物动词+that从句Ithappens(seems，looks，appears，occurstome)that...a.It+be+形容词+that-从句Itisnecessarythat…有必要……Itisimportantthat…重要的是……Itisobviousthat…很明显……b.It+be+-ed分词+that-从句Itisbelievedthat…人们相信……Itisknowntoallthat…从所周知……Ithasbeendecidedthat…已决定……c.It+be+名词+that-从句Itiscommonknowledgethat………是常识Itisasurprisethat…令人惊奇的是……Itisafactthat…事实是……d.It+不及物动词+that-从句Itappearsthat…似乎……Ithappensthat…碰巧……Itoccurstomethat…我突然想起……用it作形式主语的that-从句有以下几组：1.真可惜我们不能去游泳.2.碰巧那天我外出了.3.他考试肯定会考好.4.据说他已告诉了她一切.Itisapitythatwecan’tgoswimming.Itissaidthathetoldhereverything.IthappenedthatIwasoutthatday.Itiscertainthathewilldowellintheexam.[单句语法填空]1．Lifeislikeatale._______mattersisnothowlongitis,buthowgooditis.2．Itisnotimmediatelyclear_______thehousingpricewillgodown.3．Exactly_____thepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.4．Ithasbeenproved_____severalnewkindsofmedicinehaveapositiveeffectonthecureforthedisease.5．______wasmostimportanttoher,shetoldme,washerfamily.WhatwhetherwhenthatWhat用适当的连接词填空。1．Theactorsaid________he’daccepttheroleintheplaydependedontheplotofit.2．________isknowntousisthattheoryisbasedonpracticeandinturnservespractice.4．Itmakeshislifequitedifferent________hehasreceivedhighereducationabroad.5．________hewillcometotheparthasexcitedeveryoneofus.6．________theworkcanbecompletedontimeisdoubtful.7．________willbeinchargeoftheprojecthasn’tbeendecidedyet.8．________weshouldgotheremustbesettled.whetherWhatthatThatWhetherWhoHow/When表语从句1.Thetruthisthathehasneverbeentothecountryside.2.ThequestioniswhetherwecanfinishtheexperimentbyFriday.3.That’swhyIwanttoseeyou.实际情况是他从未去过农村.that一般不省略问题在于我们能否在明天下午之前完成这项实验.表语从句不用if4.Thisschoolisnolongerwhatitwasbefore.这所学校已不再是从前的那个样子了.系动词后面那就是我想要来见你的原因1.ThisiswhereLuXunoncelived.2.Thatwashowtheywonthematch.3.Thisiswhyshegotupsoearlythismorning.这就是鲁迅曾经住过的地方.他们就是这样赢得这场比赛的.这就是她为什么今天早上起得这么早的原因.1.我们就是这样克服困难的.2.那就是他昨天缺席的原因.3.这就是我们上星期天碰头的地方.Thatwashowweovercamethedifficulties.Thatiswhyhewasabsentyesterday.ThisiswherewemetlastSunday.[单句语法填空]1．(2015·安徽高考单项填空)Ashipinharborissafe,butthat’snotwhatshipsarebuiltfor.2．Themostimportantthingisthatweshouldfindenoughwaterforthesheep.3．Hehaslungdisease.Thatisbecausehehasbeensmokingtoomuch.4．I’vejustreadamovingstorywhichhappenedinYushuEarthquake.Thatis________myfaceisbathedintears.5．Thatwas________wecampedlasttime.whywhere宾语从句1.Theypretended(that)theyknewhowtodoit.2.Shesaid(that)shecouldn’ttellmeandthatIcouldn’tunderstandit.宾语从句并列时,只省略第一个that3.Everythingdependsonwhetherwehaveenoughtime.(if)if/whether表示“是否”可以互换,以下情况用whether:1.在介词后面2.与ornot连用3.在主语从句,表语从句,同位语从句4.后面跟不定式4.Idon’tknowwhetherhewillcomeornot.(if)5.Thequestioniswhetherhewillagree.(if)6.Idon’tknowwhethertotellhimthetruth.(if)1.Idoubtif/whetherhewillpasstheexam.2.Idon’tdoubtthatwewillwinthematch.3.Doyoudoubtthathediditonhisown?doubt问题肯定句中用if/whether否定句中用that疑问句中用that1.Idoubt_________heistellingthetruth.2.Weneverdoubt_________theplanwillbecarriedout.3.Doeshedoubt_________youarefromAustria?4.I’mdoubtful_________hewillagreetothis.if/whetherthatthatif/whether1．(2015·福建高考单项填空)—Iwonder____Maryhaskeptherfigureafteralltheseyears.—Byworkingouteveryday.2．(2015·北京高考单项填空)Itrulybelieve____beautycomesfromwithin.howthat1．Imagineyouareinthissituation，anddiscuss________youshoulddosomethingatonce.2．Hetoldus________theywouldhelpuswiththework.3．Hehasn’tmadeitknown________heisgoingtogetmarried.4．Thesportthenwasalittledifferentfrom________wecurrentlyknowasgymnastics.whetherthatwhenwhat单句语法填空。同位语从句被修饰词有:fact,news,hope,opinion,order,question,problem,belief,truth,theory,decision,discovery,conclusion,promise,rumor,fear,thought,suggestion,plan,idea…同位语从句说明它们的内容1.Heheardthenewsthattheirteamhadwon.2.ThequestionhowIdiditishardtoanswer.3.Theyhadnoideawheretheyshouldgotofindsomefood.4.Thequestionwhetherhecomesornotisnotimportant.(if)5.Athoughtcametomethathemightbeinthelibrary.他听到了他们对获胜的消息了我怎么做的这一问题难回答.他们根本不知去哪儿找食物他是否来这个问题不重要.我突然想到他可能在图书馆.被别的词隔开th