状语从句状语是用来修饰动、形、副词的句子成分。由副词,介词短语,分词,分词短语,不定式,从句来充当。可以表示地点,时间(伴随),原因,目的,结果,条件,让步,程度,方式,比较。位置可在句首、中、末。状语从句---------时间状语从句:when,while,as,before,after,since,till,until,bythetime,assoonas,once,immediately,directly,instantly,themoment,theminute,thetime,theday,eachtime,everytime,anytime,ondoingsth,onone’s+noun.,nosooner…than,hardly…when,scarcely…when,地点状语从句:where,wherever,原因状语从句:because,since,as,now(that),seeingthat,consideringthat,inthat,for,目的状语从句:so,sothat,inorderthat,incase,forfearthat,lest结果状语从句:so,so…that…,such…that…条件状语从句:if,unless,aslongas,solongas,incase,ifonly方式状语从句:as,(just)as…so,asif/asthough让步状语从句:though,although,as,evenif,eventhough,whether,while,whoever,whatever,whichever,whenever,wherever,however,nomatterwho/what/which/when/where/how,比较状语从句:as…as,notas(so)…as,thesameas,than,themore…,themore,例句(低级)引导词状语从句的种类Iwasdoingmyhomework___mymothercamein._____theyarewaitingfortheNewYear,theylistentomusic.Donotmakeanynoise_____Iamrecording.Peoplewavedflags____theparadewentdownthestreet.Hedidnotgotobed____hisfathercameback.Iwillwaitforyou____youcometoseeme.Hewaited____allthepeopleleft.Hetelephonedthathecouldn’tcome____theconcertbegan.Motheralwayspreparessupper_____Icomebackfromschool.Iwillgoouttoplaybasketballwithyou___Ifinishmyhomework.Westarttosing______itis12o’clock.Webegantowork_____wegotthere.时间状语从句_____weatherstopsme,Igoforawalkeveryday.IwillvisittheGreatWall____doesn’traintomorrow.Iwillgothererightnow____heinvitesme.条件状语从句Iliketoeatapples_____it’sgoodformyhealth.______everyoneishere,let’sbeginourmeeting.Hefailedintheexam_____hewastoocareless._____nooneisagainstit,let’scarryouttheplan.原因状语从句Shedressedlikeaman____shecouldjointhearmy.Igotupveryearly____Icouldgettoschoolontime.We’llsitnearerthefront____wecanhearbetter.目的状语从句Mikewantedtohelppeople_____hebecomeadoctor.Heworkedtoohard_____hefellitagain.Hewas____excited_____hecouldn’tgotosleeplastnight.Hegotup____late______hemissedthetrain.Heis_____tall______hecanreachthetoptotheblackboard.结果状语从句___theweatherissunny,there’salwayssnowhighinthemountains.让步状___shewantstogotoParis,shedoesn’twanttofly.ShewantstogotoParis,____shedoesn’twanttofly.语从句例句(高级)引导词状从的种类HewasworkingatthetablewhenIwentin.SomeoneknockedatthedoorwhenIwassleeping.IusedtolovethatfilmwhenIwasachild,ThetelephonewasringingwhenIgothome.Iwassurfingtheinternetwhensuddenlytheelectricitywascutoff.beabouttodo…when…,bedoing…when…,haddone…when…beonone’sway…when…,beonthepointofdoing…when…--------------------------------------------------------------------------------MymotherwascookingwhileIwasdoingmyhomework.Pleasedon’ttalksoloudwhileothersareworking.Iwantthegirlstoexperiencethatwhiletheyareyoung.(IlikewatchingTVwhilehelikesreading.)--------------------------------------------------------------------------------Hehurriedhome,lookingbehindashewent.AsIgetolder,Igetmoreoptimistic.Asaboy(Whenhewasaboy),hewashopelessatmaths.有时候As后接一个名词,相当于时间状语从句。时间状语从句Hetoldthatitwouldbeatleastthreemoremonthsbeforehecouldrecoverandreturntowork.Itwillbealongtimebeforewemeetthemagain.Itwillnotbelongbeforewemeetthemagain.Afteryouthinkitover,pleaseletmeknowwhatyoudecide.before引导的从句不用否定式。(也不能用在句子开头?)时间状语从句Youmaystayhereuntiltherainstops.Iwaitedforhimuntilhecameback.Hedidn’tgotobeduntilhehadfinishedhiswork.Theydidn’treachthevillagetillitwasdark.Iworkeduntilhecameback.Ididn'tworkuntilhecameback.主句肯定,谓语只能是延续性+until/till.(主句动作)直到(从句动作)为止。主句否定,谓语可是终止或延续+until/till直到(从句动作)才开始(主动作)Untilyoutoldme,Ihadheardnothingofwhathappened.Itwasnotuntiltheprofessorcamethatwebegantheexperiment.Notuntilhegraduateddidhesucceedinobtainingthecompound.till不放在句首,不用在强调句中,notuntil放在句首时,主句用倒装语序。时间状语从句Ihaven’theardfromhimsinceheleft.Hehasn’tseenmesinceIlivedhere.Hehasn’tseenmesinceIhavelivedhere.HehasneverbeentoseemesinceIwasill.HehasneverbeentoseemesinceIhavebeenill.I’veknownMr.SmithsinceIwasaboy.Hehasstudiedveryhardsincehecametoourschool.Ihaven’theardanynoisesinceIslept.-------------------------------------------------------------------------------It’stwoyearssincewearrivedhere.It’sbeenquitesometimesinceIwaslastinLondon.It’shalfamonthsincehewasaLeaguemember.It’salongtimesincehedidn’tstudyEnglish(X)时间状语从句It’salongtimesincehestudiedEnglish.Itwasthreeyearssincewehadbeenhere.Bythetimeyoucameback,Ihadfinishedreadingthebook.Bythetimeyoucomeheretomorrow,Iwillhavefinishedthiswork.时间状语从句ThemomentIsawhimIknewtherewasnohope.YougrowyoungereverytimeIseeyou.thetime,theday,eachtime,anytime(名词短语引导时间状语从句)时间状语从句Assoonashearrives,I’lltellhim.We’llleavetheminuteyouareready.ThemomentIsawhim,Irecognizedhim.Ileftimmediatelytheclockstruck5.Youwillbesuccessfulintheinterviewonceyouhaveconfidence.“一…就…”directly,instantly,,,,,,,,---------------------------------------------------------------------------------------Onarrivingatthestation,thethiefwasarrested.Onhisarrivalatclassroom,theteachercameandthebellrang.OnhisarrivalinParis,hewasrecognizedasanobleandthrownintoprison.“一…就…”,ondoingsth;onone’s+noun.时间状语从句Ihadnosoonerreachedthebusstopthanthebusstarted.Ihadscarcely/hardlyenteredtheroom