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2019-2020年高考英语二轮复习第10讲名词性从句学案
1.Beforeaproblemcanbesolveditmustbeobvious______theproblemitselfis.xx·湖南卷31A.whatB.thatC.whichD.why【解析】选A空白处后句子缺表语因此不能选BB中的that只起引导作用,无实意而该句选what既起了引导作用,又作了句子成分表语
2.Itisstillunderdiscussion______theoldbusstationshouldbereplacedwithamodernhotelornot.xx·重庆卷22A.whetherB.whenC.whichD.where【解析】选A该句中it作形式主语,真正的主语是由whether…ornot引导的从句句意是否这个旧车站该由现代宾馆取代还在讨论中考点
1.名词性从句的种类及连接词Iwanttobelikedandlovedfor______Iaminside.A.whoB.whereC.whatD.how【解析】选Cwhat引导的宾语从句作for的宾语,what在从句中作am的表语名词性从句具有名词的功能,分为主语从句、宾语从句、表语从句和同位语从句四种它由以下三种连接词引导
1.连词thatwhetherif
2.连接代词whowhomwhosewhichwhat等
3.连接副词whenwherewhyhow等考点
2.连词that的用法Keepinmind______youwantotherstorespectyouyoumustrespectothersfirst.A.thatwhenB.thatifC.ifwhenD.whenif【解析】选Bthat引导一个宾语从句,宾语从句中又有一个由if引导的条件状语从句
1.that引导名词性从句时既无词义也不在从句中作任何成分
2.that引导主语从句、表语从句、同位语从句时一般不可省,引导宾语从句时常可省但是,and连接两个由that引导的宾语从句时,第一个that可省,第二个that不可省
3.that从句一般不作介词的宾语但inthat“因为”,except/butthat“除了”例外考点
3.whetherif的用法ItsreportedthatPakistanisconsidering______tocontinueitsinformationcooperationwiththeUSbecausetheUSdidntinformtheminadvancebeforetheytookactiontokillBinLaden.xx·成都七中高三最后一套模拟卷A.whatB.howC.whetherD.if【解析】选C在whether后只能用不定式或后接ornot,不能接if,即whethertodo或whetherornotwhetherif引导名词性从句时,表示“是否”,不在从句中作任何成分,二者常可通用,但在下面几种情况下一般只用whether:1引导主语从句2引导表语从句3引导同位语从句4在动词discuss之后5在介词之后6后面紧跟ornot7动词不定式前考点
4.名词性从句的语序Ireallywonder______willstopJapanfromitsannualwhalehuntintheAntarctic.山西太原五中xx—xx学年度第二学期月考4月A.thatitiswhatB.whatitisthatC.whatisitthatD.thatisitwhat【解析】选B空白处为一宾语从句作动词wonder的宾语而宾语从句是一个强调句,强调what宾语从句要采用陈述语序名词性从句用陈述语序,为连词+被修饰语+主语+谓语即主谓不倒装考点
5.what与that引导名词性从句的区别例1Itisnotalwayseasyforthepublictosee______useanewinventioncanbeoftohumanlife.xx·重庆卷34A.WhoseB.whatC.whichD.that【解析】选B空白处作动词see的宾语宾语从句按顺序为anewinventioncanbeofwhatusetohumanlife,疑问词what前置因此选B例2Modernsciencehasgivenclearevidence______smokingcanleadtomanydiseases.xx·天津卷13A.whatB.whichC.thatD.where【解析】选Cthat引导词作名词evidence的同位语从句引导词该词只起引导作用,无实义,不可省略
1.在名词性从句中,that只起连接主句和从句的作用,在从句中不充当任何成分,本身也没有词义,即从句中不缺少任何成分时用连词that.
2.that在从句中作主语时通常用it作形式主语,而将that从句置于句末作真正的主语但what不能用it作形式主语
3.that可引导同位语从句,但what不能考点
6.由reason作主语时,表语从句的连接词Thereasonwhyhecantgotoschoolis______heisill.A.becauseB.whyC.thatD.which【解析】选Creason作主语时,其后的表语从句一般用连词thatreason作主语时,表语从句所用连词为that一般不用because或why等考点
7.that引导同位语从句和定语从句的区别例1______wasknowntoallthatWilliamhadbrokenhispromise______hewouldneverplayputergamesagain.xx·湖南雅礼中学高三第8次月考卷A.As;whichB.As;thatC.It;thatD.What;that【解析】选Cit作形式主语,第一个that后引导从句作真正主语名词promise后接that引导的同位语从句对前一名词内容进一步补充说明例2Helpingothersisahabitone______youcanlearnevenatanearlyage.xx·山东卷改编A.itB.thatC.whatD.who【解析】选Bone是ahabit的同位语作为定语从句的先行词,后用which或that作定语从句动词learn的宾语关系代词作宾语也可省略that引导同位语从句时,that在从句中不作成分一般不省且不可用which来取代;that引导定语从句时,that须作主语、宾语或表语作宾语时常可省且常可用which来取代。