定义:一个____用作状语时,在语法上叫状语从句。这个句子可修饰主句的_____._____._____或________状语从句通常由一个＿＿＿引起或起连词作用的____引起或由_____.__________等引起。分类：状语从句可表示1)________2)_________3)__________4)_________5)_________6)_________7)_________8)__________9)________等句子谓语定语状语整个句子连词词组副词名词词组时间地点原因目的结果条件行为方式比较让步连词:一.表示时间的状语从句可由以下连词引导:1.when,while,as,whenever,before,after,until,till,since,eversince,once,assoonas2.everytime,next/last/eachtime,thefirsttime,themoment,theminute,theinstant3.instantly,directly,immediately4.hardly…when,nosooner…than,beabouttodo…whenItis/hasbeen+一段时间+since从句Itwas/won’tbe+一段时间+before从句二.地点状语从句:where,wherever,anywhere,everywhere.三.原因状语从句:because,as,since/nowthat;seeing(that)由于,consideringthat考虑到,notbecause/that…butbecause/that…四.目的状语从句that(=sothat),sothat,inorderthat,incase,forfearthat,lest.五.结果状语so,that,sothat,so…that…,such…that….六.条件状语从句:if,unless,once,onconditionthat,as/solongas,sofaras(据我所知…),providing/provided(that),given(that)假定,七.方式状语:as,asif/though,justas,ratherthan.八.比较状语从句:than,as九.让步状语从句:Though,although,evenif/though,nomatter,whatever,however,whether…or…,while(=though),as用when,while或as填空:1._______________weweretalking,MrSmithscamein.2._____theycamehome,Iwascookingdinner.3.Iwasabouttogotobed_______Iheardsomeoneknockattthedoor.4.________wewerewatchingTV,hewasstudying.5.Heisfat_______hisbrotheristhin.6.______shesang,tearsrandownherface.Conclusion:A:从句为”当……的时候”,从句谓语为延续性动词,主句谓语为非延续性动词(即终止性动词),三者可通用.B当从句的谓语动词为终止性动词,只能用when;表示”正在那时”,也只能用when..C.从句和主句的谓语动词都为延续性动词时,只能用while;while还可作并列连词,表示”而”.While/As/WhenwhenwhenWhilewhileAsD.当强调主句和从句的动作同时发生时,只能用as,译为”一边……一边……;随着……”Before与after:1.HeFinishyourhomework______yougoouttoplay.2.hadleftthetowntheday______shearrived.3.Hehadwalkedthreedays____hefoundwater.4.Itwasnotlong_____helefthishometown.5.Iplayedfootball_____I(had)finishedmyhomework6.PleasetellherI’llcome____Idosomeshopping.7.Itwillnotbelong_____wemeateachotheragain.afterafterConclusion:1.Before作为连词,有多种含义,必须根据上下文作出合理的判断.2.Before与after所引导的时间状语从句中,用现在时表示将来时.4.Before引导的从句是过去式,主句是过去时或过去完成时;.主句为过去时,after从句可用一般过去时代替过去完成时.3.Before与after还可作介词,后接名词或-ing形式.till与until:1.Helivedwithhisparents________hegraduatedfromcollege.2.Not____hetoldmedidIknowthetruth.3.Thechildrenwon’t________(come/be)homeuntil/tillit’sdark.4.Itwas_________thewarwasoverthathereturnedtohisland.till/untiluntilcomenotuntilConclusion:1.主句为肯定句时,主句的谓语动词应为延续性动词.2.当主句谓语动词为非延续性动词时,谓语动词应用否定式.3.位于句首时.只能用until,不用till.4.not…until可改写为:Itis/wasnotuntil…that强调句.”not+until引导的从句,一同置于强调句中.5.Till与until还可作介词,后接名词.如:Iwaitedtill/until3o’clock.其它的时间状语从句:ill.1.I__________(be)athisbedsidesincehe_______(become)ill.2.It_________(be)twoyearssincewe_______(begin)tousethismachine.3._______________________hesawthemonster,heturnedpale.4.Thespyhad_________returnedhomethanhewastoldtogotoanothercountry.5.Wehad___...
