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同位语从句讲解与练习1定义：用作同位语的从句叫做同位语从句，用以解释说明某一名词内容和实质的从句。2.连接词：that,whether,why,who,where,how,when等。引导同位语从句时一般都不省略。if一般不引导同位语从句that,whether不作成分，whether表示“是否”E.g.Theywereallverymuchworriedoverthefactthatyouweresick.对你生病这件事，他们很焦虑。WheredidyougettheideathatIcouldnotcome?你在哪儿听说我不能来？Ihavenoideawhetherhe’llcomeornot.我不知道他是否来。连接代词who,which,what和连接副词where,when,why,how亦可引导同位语从句，在句中作成分。E.g.Thequestionwhoshoulddotheworkrequiresconsideration.谁该干这项工作，这个问题需要考虑。Wehaven’tyetsettledthequestionwherewearegoingtospendoursummervacation.到哪儿去度暑假，这个问题我们还没有决定。Itisaquestionhowhedidit.那是一个他如何做了此事的问题。3.可跟同位语从句的名词或短语不是所有的名词都可以跟同位语从句，常可以被同位语从句修饰的名词有：beliefdoubtexplanationhopeideanewsopinionpossibilitystatementthoughtwishtruthfactquestionpromiseproblemreplyreportsuggestionadvicefearwarningunderstandingfeelingrumorcertaintyprobabilityonconditionontheunderstandingwiththeexceptioninspiteofthefactE.g.DanielwillbeallowedtomakeatriptoChinaonconditionthathegetsanAinallhisschoolsubjects.4同位语从句与定语从句的区别1）that引导的同位语从句与定语从句之区别句法功能上that引导的同位语从句that只起连接从句的作用，无意义。在从句中不充当句子成分。不可省。that引导的定语从句that替代先行词在从句中不仅起连接作用，还充当一个句子成分。如在从句中作动词的宾语时可省略。意义上同位语从句是被修饰名词的内容。定语从句起限定作用，是定语。如：ThenewsthatMr.LiwillbeournewEnglishteacheristrue.(同位语从句，that不可省)李先生将是我们的新英语老师这个消息是真的。Thenews(that)hetoldmeyesterdayistrue.(定语从句，that在从句中作的宾语，可省)他昨天告诉我的消息是真的。2）wh-类词引导的两种从句的区别who,whom,whose,when,where,why引导定语从句，它们分别指前面先行词所表示的人、物、时间、地点、原因，否则为同位语从句。在同位语从句中，wh-类词表示疑问。IwillforevercherishthetimewhenIwontheprizeintheNationalMathsCompetition.(定语从句）IhavenoideawhenhewontheprizeintheNationalMathsCompetition.(同位语从句）.3）一些表示“建议、命令、要求”的名词后所跟的同位语从句中，谓语动词用虚拟语气should+动词原形表示。should可省。如：Thisisouronlyrequestthatthis(should)besettledassoonaspossible.这就是我们唯一的请求：尽快解决这个问题。练习：用适当的连接词填空：Itworriedherabit_____herhairwasturninggray.2.Ihavenoidea_____wecandowiththesewastematerials.3.____thedoctorreallydoubtsis____mymotherwillrecoverfromtheseriousdiseasesoon.4.Itishoped____naturewillneverbedestroyed.5.____doyouguesswillgiveatalkonEnglishtomorrow?6.--IdrovetoZhuhaifortheairshowlastweek.--Isthat____youhadafewdaysoff?7.Wordcame____Iwaswantedattheoffice.8.Doyouknow____ofthemwillbeournewheadmaster?9.Theteacherdidn’ttellme____wewerewrong.10.It’sgenerallyconsideredunwisetogiveachild____heorshewants.B.单项选择Itwastrue_____Alicedidsurprisedhermother.A.thatB.whatC.that,whatD.what,that2.Does____mattermuch____hecan’tcometothemeeting.A.it,ifB.that,ifC.it,whetherD.this,whether3.--Whatareyouanxiousabout?--____A.HowcanwesucceedB.WhetherwecansucceedC.WhencanwesucceedD.Thatwecansucceed4.Thereason____thelittleactresshasbeensuchasuccessis____sheisbothcleverandhard-working.A.why,whyB.why,thatC.that,becauseD.for,because5.____leavestheroomlastoughttoturnoffthelights.A.WhoB.WhoeverC.AnyoneD.Theperson6.Ireallydon’tknow_____Ihadthisphototaken.A.whereitwasthatB.itwasthatC.whereitwasD.itwaswhy7.?Dr.BlackcomesfromeitherOxfordorCambridge.Ican’tremember____.A.whereB.thereC.whichD.that8.--WhatdoyouthinkofChina?--____differentlifeistodayfrom____itusedtobe.A.How,whatB.What,whatC.How,thatD.What,that9.Givethisto____youthinkcandotheworkwell.A.whoB.whomC.whoeverD.whomever10.____troublesmeis____Ican’tlearnalltheseEnglishidiomsbyheart.A.That,thatB.What,whatC.That,whatD.What,that练习二1.Thefact____sheworkshardiswellknowntousall.A.thatB.whatC.whyD.which2.Thefact____hewassuccessfulproveshisability.A.thatB.whatC.whichD.why3.Thenews____hewaskidnappedsurprisedusgreatly.A.whatB.thatC.whyD.when4.Hissuggestion____themeetingbedelayedwasturneddown.A.whichB.thatC./D.it5.Ihavenoidea____hewillstart.A.whenB.thatC.whatD./6.I'vecomefromthegovernmentwithamessage____themeetingwon'tbeheldtomorrow.A.ifB.thatC.whetherD.which7.Thethought____hemightfailintheexamworriedhim.A.whenB.whichC.whatD.that8.Theorder____theprisonerbesetfreearrivedtoolate.A.whichB.whetherC.thatD.what9.Thenursesaretryingtheirbesttoreducethepatient'sfear____hewoulddieofthedisease.A.thatB.asC.ofwhichD.which10.Heoftenaskedmethequestion____theworkwasworthdoing.A.whetherB.whereC.thatD.when同位语从句答案A.1.that2.what3.what,whether4.that5.who6.why7.that8.which9.where10.whateverB.1—5CABBB6—10ACACD1-5AABBA6-10BDCAA