第1页共19页译林版（2023）选择性必修第四册Unit3CareersandSkillsGrammarandusage名词性从句课件(共40张PPT)(共40张PPT)名词性从句什么是名词性从句？对于一个主从复合句，若从句在主句中相当于一个名词的功能，则把这个从句称为名词性从句。如：WhatIenjoyedmostwasthedeliciousfood.Theresultwasthatshelostthegame.名词性从句包括哪些？主语(√):WhatIenjoyedmostwasthedeliciousfood.谓语(×)宾语(√):Idon’tknowwhethertherewillbeabus.定语(×)状语(×)补语(×)表语(√):Theresultwas(that)shelostthegame.同位语(√):Thenewsthatshelostthegamemadeusdisappointed.名词性从句第2页共19页第一节主语从句概念：把一个句子的主语由一个单词或词组变成一个句子，这个句子就称为主语从句。主语从句一般放在主句谓语动词之前。例句：(1)Thisisagoodmeal.Whatyouneedisagoodmeal.(2)Itdoesn’tmatter.Whenweshouldleavedoesn’tmatter.(3)Thispersonwillbepunished.Whoeverbreaksthelawwillbepunished.(4)Thatmeansalottome.Whatyoudidmeansalottome.(5)Itisapity.Thathedoesn’tcomeisapity.Itisapitythathedoesn’tcome.名词性从句第一节主语从句主语从句连接词包括：注：连接代词在从句中作主要成分，连接副词在从句中只能作状语。两个连词that和whether在从句中只能相当于一个符号，不能作成分。连接词18个纯连词2个that,whether只起引导作用(注:if不能引导主语从句)连接代词10个who,whom,whose,what,whichwhoever,whomever,whosever,whatever,whichever连接副词6个when,where,whenever,wherever,how,why名词性从句第3页共19页第一节主语从句主语从句连接词例句：注:1.whose,whosever和which,whichever作连接代词时，不可单独使用，后面必须跟一个名词，如例句4中whose后面跟house，例句5中which后面跟train。2.其他的连接代词都只能单独使用，后面不能接名词。连接代词what1.Whatyouneedismorepractice.连接代词who2.Whowillbesenttherehasnotbeendecided.连接代词whom3.Whomyouwilllookafterisnotknown.连接代词whose4.Whosehouseitisstillremainsamystery.连接代词whose5.Whichtrainwillleavefirstisaproblem.名词性从句第一节主语从句主语从句连接词例句：连接代词whatever6.Whatevershedidwasright.连接代词whoever7.Whoevercomeswillbeenjoyed.连接代词whomever8.Whomeveryoulookforisnotallowed.连接代词whosever9.Whoseverbookisoverduewillbefined.连接代词whosever10.Whichevercarcomeswillbewelcomed.名词性从句第一节主语从句主语从句连接词例句：第4页共19页连接副词when11.Whentheywillstarthasnotbeendecidedyet.连接副词where12.Wherethemeetingwillbeheldhasnotyetbeenannounced.连接副词whenever13.Wheneveryouleaveisallright.连接副词wherever14.Whereverwewillspendourholidayisnotclear.连接副词how15.Howthishappenedisnotclear.连接副词why16.Whyhedidthatwasn’tquiteclear.名词性从句第一节主语从句主语从句连接词例句：注:1.例句17可引入形式主语it,改为Itisquiteobviousthatweneedmoreequipment.2.例句18whether不可换成if，因为if不能引导主语从句。连词that17.Thatweneedmoreequipmentisquiteobvious.连词whether18.Whethershewilljoinuswon’tmaketoomuchdifference.主语从句练习1.______thedelayedflightwilltakeoffdependsmuchontheweather.A.WhyB.WhenC.ThatD.What2.Exactly______thepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.第5页共19页A.whetherB.whyC.whenD.how3.______makesthebooksoextraordinaryisthecreativeimaginationofthewriter.A.ThatB.WhatC.WhoD.Which4.______oneofyoubreaksthewindowwillhavetopayforit.A.WhoeverB.WhateverC.WhicheverD.Wherever主语从句练习5.Itdoesn’tmatter______youturnrightorleftatthecrossing--bothroadsleadtothepark.A.whetherB.howC.ifD.when6.______yousaidatthemeetingdescribesabrightfutureforthecompany.A.WhenB.HowC.WhatD.That7.______Iwanttotellyouist...
