高中语法专题（二）状语从句时间状语从句原因状语从句地点状语从句目的状语从句结果状语从句条件状语从句让步状语从句比较状语从句方式状语从句引导词whenwheneveraswhilebeforeafteruntil(till)sinceassoonasonceeach/everytimenexttimethefirsttimethemomenttheminuteinstantlyimmediatelydirectly(一…就…)nosooner…thanhardly/scarcely…when1)when的用法：sbwasdoing…when…正在做某事….突然发生另一件事sbbeabouttodo…when…正要做….突然发生另一件事sbhaddone…when…刚做完某事….突然发生另一件事2.)几种特殊句型与强调结构的区别：Itis/was+具体时间点+when…那是在…时…发生的Itis/hasbeen+时段+since…自从…以来过了多久了Itwillbe/was+时段+before(现在时/过去时)要过/已经过了多久才Itis/was+时间状语+that…就是在…时间发生的某事，是强调句3).before的用法：A：表“还未来得及…就…”B：表“过一段时间才…”，4).在not…until结构中，谓语用短暂性动词，“直到…才”;肯定句中谓语为延续性动词，用until表“一直持续到…”。考查重点5)nosooner…thanhardly/scarcely…when刚……就A.时态：主句用过去完成时（had+pp）从句用一般过去时B.倒装：nosooner/hardly/scarcely放句首，主句要到装Shehadnosoonerarrivedatthestationthanthetrainstartedtomove.Nosoonerhadshearrivedatthestationthan….Hehadhardlyenteredthehotelwhenitbegantosnow.Hardlyhadheenteredthehotelwhenitbegantosnow1.Weweretoldthatweshouldfollowthemainroad____wereachedthecentralrailwaystation.(2004辽宁)A.wheneverB.untilC.whileD.wherever2.Itisalmostfiveyears____wesaweachotherlasttime.(2005北京)A.beforeB.sinceC.afterD.when3.Simonthoughthiscomputerwasbroken_____hislittlebrotherpointedoutthathehadforgottentoturniton.(2005北京春)A.untilB.unlessC.afterD.because4.TheAmericanCivilWarlastedfouryears____theNorthwonintheend.(2005广东30)A.afterB.beforeC.whenD.then5.--DidJackcomebackearlylastnight？(2005福建)--Yes.Itwasnotyeteighto'clock_____hearrivedhome.A.beforeB.whenC.thatD.until6.Wewereswimminginthelake____suddenlythestormstartedA.whenB.whileC.untilD.before(2004北京春)BBABBAbecause,since,as,for,now(that),considering(that),seeing(that)考虑到／鉴于鉴于／由于／因为考查重点because,since,as,forbecause—直接原因，非推断．语气最强．回答whysince–通常放句首．译为“既然”as–不谈自明的原因，语气最弱．for–放句中，对前面一句话的内容的补充说明。1.Parentsshouldtakeseriouslytheirchildren'srequestsforsunglasses____eyeprotectionisnecessaryinsunnyweather.(2004上海)A.becauseB.thoughC.unlessD.if2.JennywasverysadoverthelossofthephotosshehadshotatCanada,____thiswasamemorysheespeciallytreasured.(2006广东)A.asB.ifC.whenD.whereAA地点状语从句由where.wherever引导。where指“在某个地方”，wherever指“无论哪里，在任何一个地方”，在使用时：一要注意两者的含义区别。二要注意状语从句和定语从句的区别。三要注意在状语从句中不可使用介词+which引导。出题者既考状语从句又考定语从句和状语从句的区别。还加入名词性从句这一干扰项。1.Ifyouaretraveling____thecustomsarereallyforeigntoyourown，pleasedoastheRomansdo.(2006天津)A.inwhichB.whatC.whenD.where2.Inpeace，too，theRedCrossisexpectedtosendhelp___thereishumansuffering.A.whoeverB.howeverC.whateverD.wherever(06江西)3.--Mom，whatdidyourdoctorsay？(2006四川)--Headvisedmetolive____theairisfresher.A.inwhereB.inwhichC.theplacewhereD.whereDDD目的状语从句和结果状语从句引导目的状语从句连词有：incase,sothat,inorderthat,forfearthat。sothat引导状语从句只能置于主句之后。Inorderthat引导状语从句可放主句之前或之后。目的状语从句的谓语常含有can，could，may，might情态动词。这也是与结果状语从句的一个区...
