状语从句详解及练习题附答案1时间状语从句：在一个句子中作时间状语的句子。时间状语的连接词：when(当…时候)while(当…时候)as(当…时候)after(在…以后)before(在…以前)assoonas(一…就)since(自从…到现在)till/until(直到…才)bythetime(到…为止)依旧是连接词后加陈述语序。举例：when当…的时候(一般情况下主句是将来时的时候，从句要用一般现在时。)Mozartstartedwritingmusicwhenhewasfouryearsold.2原因状语从句：在一个句子中作原因语的句子。连接词：由连词because,since,as引导,也可由for,nowthat等词引导。举例：Ididn’tgotoschoolyesterdaybecauseIwasill.3条件状语从句连接词：if如果,unless(=ifnot)除非。(让步)举例：Ifitdoesn’traintomorrow,wewillgohiking.4目的、结果状语从句目的状语从句是指在一个句子中充当目的状语的句子。结果状语从句是指在一个句子中充当结果状语的句子目的状语从句连接词sothat,so…that,inorderthat引导。结果状语从句连接词so…that,such…that,somuch/many…that引导。举例：so…that如此…以至于Thescientist’sreportwassoinstructivethatwewereallveryexcited.5让步状语从句让步状语从句是指在句子中作让步的状语的句子连接词：though,although.，whether…ornot举例：Althoughheisrich,yetheisnothappy.状语从句分类1．时间状语从句常用引导词：when,as,while,assoonas,while,before,after,since,till,until特殊引导词：theminute,themoment,thesecond,everytime,theday，theinstant,immediately,directly,nosooner…than,hardly…when,scarcely…whenIdidn’trealizehowspecialmymotherwasuntilIbecameanadult.WhileJohnwaswatchingTV,hiswifewascooking.Thechildrenranawayfromtheorchard(果园)themomenttheysawtheguard.NosoonerhadIarrivedhomethanitbegantorain.EverytimeIlistentoyouradvice,Igetintotrouble.2．地点状语从句常用引导词：where特殊引导词：wherever,anywhere,everywhereGenerally,airwillbeheavilypollutedwheretherearefactories.Whereveryougo,youshouldworkhard.3．原因状语从句常用引导词：because,since,as,since特殊引导词：seeingthat,nowthat,inthat,consideringthat,giventhat,consideringthat,MyfriendsdislikemebecauseI’mhandsomeandsuccessful.Nowthateverybodyhascome,let’sbeginourconference.Thehigherincometaxisharmfulinthatitmaydiscouragepeoplefromtryingtoearnmore.Consideringthatheisnomorethan12yearsold,hisheightof1.80misquiteremarkable.4．目的状语从句常用引导词：sothat,inorderthat特殊引导词：lest,incase,forfearthat，inthehopethat,forthepurposethat,totheendthatThebossaskedthesecretarytohurryupwiththeletterssothathecouldsignthem.Theteacherraisedhisvoiceonpurposethatthestudentsinthebackcouldhearmoreclearly.5．结果状语从句常用引导词：so…that,so…that,such…that,特殊引导词：suchthat,tothedegreethat,totheextentthat,tosuchadegreethat,Hegotupsoearlythathecaughtthefirstbus.It’ssuchagoodchancethatwemustnotmissit.Tosuchandegreewasheexcitedthathecouldn’tsleeplastnight.6．条件状语从句常用引导词：if,unless,特殊引导词：as/solongas,onlyif,providing/providedthat,supposethat,incasethat,onconditionthatWe’llstartourprojectifthepresidentagrees.Youwillcertainlysucceedsolongasyoukeepontrying.Providedthatthereisnoopposition,weshallholdthemeetinghere.7．让步状语从句常用引导词：though,although,evenif,eventhough特殊引导词：as(用在让步状语从句中必须要倒装)，while(一般用在句首)，nomatter…，inspiteofthefactthat,while,whatever,whoever,wherever,whenever,however,whicheverMuchasIrespecthim,Ican’tagreetohisproposal.尽管我很尊敬他，我却不同意他的建议。状语从句练习单项选择5.—IsMr.Smithintheoffice?—Yes，________heisinchargeoftheoffice，hemustbethere.A.sinceB.howeverC.whetherD.for8.Someonecalledmeupinthemiddleofthenight，buttheyhungup________Icouldanswerthephone.A.asB.sinceC.untilD.before17.IsawMr.SmithlastSunday.Wehadnotseeneachother________IleftLondon.A.asB.beforeC.sinceD.till18.I’llbebackbeforeyou________.A.willleaveB.willhaveleftC.leaveD.wouldleave24.________youtalktosomeoneorwriteamessage，youshowyourskillstoothers.A.AttimesB.SometimeC.BythetimeD.Everytime25.Althoughheisconsideredagreatwriter，________.A.howeverhisworksarenotwidelyreadB.buthisworksarenotwidelyreadC.hisworksarenotwidelyreadD.stillhisworksarenotwidelyread26.Thenewsecretaryissupposedtoreporttothemanagerassoonasshe________.A.willarriveB.isgoingtoarriveC.arrivesD.isarriving36.Hegotexcitedatthenews，________Iwascalm.A.whenB.whileC.becauseD.after45.Icame________Iheardthenews.A.untilB.assoonasC.immediatelyD.BandC
