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1、高考英语语法：状语从句一.定义:在句中作状语的从句就叫做状语从句二.分类:状语从句包括以下八类1.时间状语从句:由when,while,as,before,after,since,till/until,assoonas等引导a.Ishalltellhimthegoodnewswhenhecomes.2.原因状语从句:由because,as,since,for等引导a.Hedidn’thearmebecausehewaslisteningtotheradio.b.Sinceyouarefreetoday,you
2、hadbettershowmehowtousethecomputer.3.地点状语从句:由where等引导a.Pleaseputthebookwhereitwasafteryoufinishreadingit.4.条件状语从句:由if,unless等引导a.IwillcometoseeyouifIhavetimeonSunday.5.比较或方式状语从句:由than,as,asif,as...as...等引导a.Iknowyoudobetterthanhedoes.b.Theoldworkerrunsveryf
3、astasifhewereayoungman.6.目的状语从句:由sothat,inorderthat等引导a.Theysetoutearlysothattheycouldarriveatthestationingoodtime.7.结果状语从句:由so,sothat,so/such...that...等引导a.Theysetoutearlysothattheyarrivedatthestationingoodtime.b.Hefinishedhisworksowellthatthebosspraisedhi
4、minpublic.8.让步状语从句:由though/although,evenif,whatever,whoever,whenever,nomatterwhat/who等引导4a.Heisinverygoodhealththoughheisold.b.Theydidn’tstopworkingevenifitbegantorainhard.三.应注意的问题:1.时间和条件状语从句中常用一般时代替将来时a.IwillgoandseeafilmifIhavetimetomorrow.b.Iwilltellthe
5、aboutitassoonashecomesback.c.Hesaidhewouldgooutforawalkwhenhefinishedhiswork.2.状语从句中可有省略:在一个含有状语从句的复合句中,如果主句和状语从句的主语相同,或状语从句的主语是it,并且状语从句的谓语含有be动词时,可以将状语从句的主语和be一起省略掉a.As(shewas)achild,shebegantolearnEnglish.b.If(hewas)alive,hemustbeatleastninetyyearsold.c.
6、Although(hewas)toldtostop,hekeptonworking.d.If(itis)necessary,ringmeup.e.Hedidn’tsayasingleworduntil(hewas)asked.3.as和than引导的比较状语从句中,从句中和主句中相同的部分往往省略,从句中只剩下比较对象a.HeisaheadtallerthanI(amtall).than之后的人称代词是主格或宾格时,有时意思不同,如:a.Shelikesthedogmorethanme.=Shelikesth
7、edogmorethanshelikesme.她喜欢狗比喜欢我更多b.ShelikesthedogmorethanI.=ShelikesthedogmorethanIlikethegod.她比我更喜欢狗4.含有nosoonerthan和hardly/barely/scarcelywhen的句子相当于含有assoonas引导的时间状语的句子.nosooner或hardly放在句首时,主谓要部分倒装4a.Hehadnosoonerseenthepolicemanthanheranaway.=Nosoonerhad
8、heseenthepolicemanthanheranaway.=Heranawayassoonashesawthepolicemen.b.Hehadhardlysatdownwhenthetelephonerang.=Hardlyhadhesatdownwhenthetelephonerang.=Thetelephonerangassoonashesatdown.5.immediately,dir
