语法专题三：状语从句VIP免费

语法专题三：状语从句1.状语从句的类型1)时间状语从句：常见引导词有：when：表示主句和从句的动作同时或先后发生，强调点，表“就在那时；突然”。while：常表示延续性动词或状态；while也可表示对比的转折。assoonas：表示从句的动作一发生，主句的动作马上就发生。hardly/scarcely…when；nosooner…than：表示“还没来得及……就；刚……就”。directly,immediately,instantly：副词当连词用，表示“一……就”。themoment,theminute,thesecond：充当连词，等于when/assoonas。eachtime,everytime,nexttime,bythetime等：也可以引导时间状语从句。since：引导的时间状语从句，主句常用现在完成时，从句常用一般过去时。常用句型：Itis+段时间+since从句，“自从……有多长时间了”。until：常与not连用，表示“直到……才……”；Notuntil置于句首时，主句要部分倒装；在Itis/was…that/who…强调结构中，须连在一起。2)让步状语从句：常见引导词有：although,though,evenif,eventhough,as等。3)原因状语从句：常见引导词有：because：常用于回答why,语气最强；强调原因，常与just,only等起强调作用的副词连用；可引导表语从句。for：是个并列连词，一般不放在句首，常表示一种推测或解释，或用作附加说明，语气弱。as,since：常译为“既然、由于”，表示十分明显的原因，语气较弱。nowthat：表示“既然”的意思。4)地点状语从句：常见引导词有：where,wherever等。5)目的状语从句：常见引导词有：that,sothat,inorderthat等。目的状语从句的谓语动词常与情态动词连用，否则可能是结果状语从句。不可置于句首。目的状语从句还可以用动词不定式来替换。6)结果状语从句：常见引导词有：that,sothat,so…that,such…that…等。7)方式状语从句：由as,asif(though)等引导。8)比较状语从句：由than,as等引导。9)条件状语从句：由if,unless,so(as)longas,incase,once,afaras,onconditionthat等引导。2.注意：1)主将从现规则：在时间状语从句、条件状语从句、让步状语从句、方式状语从句中，若主句用一般将来时，或是祈使句，或是含有情态动词的谓语形式，从句则用一般现在时表示将来时，如：Youcanjoinourclubwhenyougetabitolder.2)疑问词+ever和nomatter+疑问词的区别：疑问词+ever可引导名词性从句和让步状语从句；nomatter+疑问词，只能引导让步状语从句。巩固练习：1.______you’vetriedit,youcan’timaginehowpleasantitis.A.UnlessB.BecauseC.AlthoughD.When2.Heleftin______ahurry______heforgothiskey.A.such,thatB.so,thatC.thesame,asD.such,as3.Hehaslovedme______Iwerehisson.A.becauseB.asC.ifD.asthough4.Idon’tthinkI’llneedanymoneybutI’llbringsome______.1A.aslastB.incaseC.onceagainD.intime5.Someonecalledmeupinthemiddleofthenight,buttheyhungup______Icouldanswer.A.asB.sinceC.beforeD.until6.Wemustdoitwell,______therearealotofdifficulties.A.asifB.asthoughC.eventhoughD.evenas7.______hastakenpartintheAthensOlympicGamesisworthpraisingnomatter______hehaswonmedalsornot.A.Who;ifB.Anyone;whetherC.Whoever;whetherD.Whoever;how8.---It’salongtime______Isawyoulast.---Yes,andwhatapityitisnowthatitwillbealongtime______weseeeachotheragain.A.before;sinceB.since;whenC.since;beforeD.when;before9.Theheadofthecompanypromisedtodealwithmattersofthissort______hereturnedtohisoffice.A.untilB.whileC.bythetimeD.themoment10.Hehadalreadywalkedthreeorfourmiles______hesawacartbythesideoftheroad.A.whileB.whenC.themomentD.unless11.Much______theyoungcoupleneededmoneytomakethedownpaymentfortheapartment,theywouldn’tasktheirparentsforhelp.A.althoughB.asC.evenifD.while12.Ihavekeptthephoto______Icanalwaysseeit,asitremindsmeofthedayswhenIstudiedinBritain.A.atwhichB.whenC.whereD.attheplace13.Iwouldappreciateit______youcanhelpmewithmyEnglishthisafternoon.A.becauseB.untilC.whenD.if14.______youmayberight,Ican’taltogetheragree.A.AsB.WhileC.IfD.Since15.______was1998______Igraduatedfromtheuniversity.A.It;whenB.It;thatC.That;whenD.That;that16.Thefamousscientistgrewup______hewasbornandin1930hecametoShanghai.A.whenB.wheneverC.whereD.wherever17.“ItgivesmegreatjoyandIfeelmorepressurethanIdid______IwoninChina,”DingJunhuisaid.A.thatB.whenC.whichD.how18.Parentsshouldtakeseriouslytheirchildren’srequestsforsunglasses______eyeprotectionisnecessaryinsunnyweather.A.becauseB.throughC.unlessD.if19.Johnshuteveryoneoutofthekitchen_____hecouldpreparehisgrandsurprisefortheparty.A.whichB.whenC.sothatD.asif20.______everybodyknowsaboutit,Idon’twanttotalkanymore.A.ForB.EvenC.SinceD.However状语从句：AADBCCCCDBBCDBACBACC2