搜索
LOREMIPSUMDOLORIwillcallyoutomorrow.用来对谓语动词进行补充、说明和完善的成分，我们称之为。Iwillcallyouwhenhecomes.当状语部分是由简单句构成的时候，我们称这样的句子为状语从句。从句主句主句+连接词+从句Iwillcallyouwhenhecomes.状语从句有很多种，其中对动作发生的时间进行描述的从句，我们称之为。when,while,before,after,until,since,assoonas......时间状语从句主从句之间的连接词注意：从句动作既可以发生在时间点，也可以发生在时间段。when瞬间动词延续性动词1.Thestudentswereplayingcomputergameswhentheteachercamein.2.WhenIwaswalkingalong,Icameacrossafriendofmine.瞬间动作延续动作时态3.Wewillgooutforawalkwhentheweatherisfine。4.IalwaysdrinkcoffeewhenIwork.5.Whenhegavemeapresent,Ithankedhim.时态主将从现（祈使句，情态动词也可视为主将）主现从现主过从过注意：while引导的时间状语从句，主句动作是在从句动作进行的过程中发生的。Someoneknockedthedoorwhilewewerehavingsupper.while从句必须是延续性动词1.Someoneknockedthedoorwhilewewerehavingsupper.2.IwaswatchingTVwhilemymotherwascooking。时态when强调两个动作同时发生，主从句都用进行时，只能用while1.肯定句：。。。直到。。。（表示主句发生的动作一直持续到某一时间才停止，因此，主句动词要使用延续性动词）Ihavetostayhereuntiltherainstops.IwatchedTVuntilmymotherreturnedlastnight.until2.否定句：not......until...直到。。。才。。。（表示主句的动作一直持续到某时才开始，主句动词既可以是延续动词，也可以是瞬间动词。）Hedidn'tdohishomeworkuntilhisfathercamehome.Iwon'tgooutuntilIfinishmyhomework.Shedoesn'twatchTVuntilshefinishesherhomeworkeveryday.主过从过主将从现主现从现before:在。。。之前（主句动作发生在从句动作之前）after:在。。。之后（主句动作发生在从句动作之后）since:自从（主句现在完成时，从句一般过去时）assoonas:一。。。就。。。时态用法上以主将从现最为常见。也有主过从过，主现从现等用法。Wewillgototheparkassoonastherainstops.1.MyparentswerewatchingTVwhileI_____ontheInternet.A.searchB.wassearchingC.searchedD.searching2.I'llphoneyou____Marycomeshome.A.sinceB.untilC.assoonasD.while3.Pleaseturnoffthlight____youleavetheclassroom.A.afterB.beforeC.untilD.since4.Theydidn'trealisetheimportanceofstudy____theyleftschool.A.whenB.whileC.afterD.until1.Wehavelivedinthiscity__________Imovedherein1990.2.Haveyoudecidedwhatyouwanttobe_________yougrowup?3.Don'tworry,I'llphoneyou__________Igetthenews.sincewhenassoonas4.Thedrunkmandidn'tleavethestation_______thepolicecameyesterday.5.Ihaven'theardfromhim__________hewenttoAmerica.6.Iwaited__________hecameback.untilsinceiuntil7.Shelikeseverythingtobeinplace________shestartstowork.8._____theworkwasdone,wesatdowntosumup（总结）experience.9.Weplayedoutsidetillsunset,_______itbegantorain。beforeAfterwhen10.Theydecidedtogobackhome__________theirmoneyranout.11.__________Igettotheairport,Iwillphoneyoutopickmeup.12.Myfatherwasreadingnewspaper_______mymotherwascleaningtheroom.beforeAssoonaswhile