时间状语从句时间状语从句常用的连词when,whenever,will,as,before,after,until,till,bythetime,assoonas,hardly…when,nosooner…than,themoment,immediately,directly,instantlyAshewalkedalongthelake,hesanghappilyAfterhefinishedmiddleschool,hewenttoworkinafactory.ItwasraininghardwhenIgottoschoolyesterday.比较while,when,as1）as,when引导短暂性动作的动词。Justas/Justwhen/WhenIstoppedmycar,amancameuptome.2）当从句的动作发生于主句动作之前，只能用when引导这个从句，不可用as或while。Whenyouhavefinishedyourwork,youmayhavearest.3）从句表示"随时间推移"连词能用as，不用when或while。Asthedaywenton,theweathergotworse.日子一天天过去，天气越变越坏4）When:表示时间点，还可以表原因，译作“既然”。还可以翻译成"突然"5）While:表示时间段，还可以用来表示对比翻译成“而”。While放在句首要翻译成“尽管”引导让步状语从句。时间状语从句：themoment有一些表示时间的名词短语也可用来引导时间状语从句theminute,themoment,everytime,thefirsttimeThemomenthereachedthecountry,hestartedhissearch.他一到达这个国家，就开始他的探寻工作。EverytimeIsawthestrawhat,itremindedmeofthetourImadeyearsbefore.每当我看到那顶草帽，它就使我想起几年前的那次旅游IthoughtherniceandhonestthefirsttimeImether.我第一次见到她就觉得她诚实而友善。时间状语从句：directly等。有一些表示时间的副词也可用来引导时间状语从句：Directlythemastercamein,everyonewasquiet.校长一进来，大家就安静下来。Theyoungladyrushedintotheroomimmediatelysheheardthenoise.那位年轻女士一听到响声就冲进房间。until和not…until的区别Until要与延续性动词连用；not…until要与非延续性动词连用1.Until句子翻译成动作直到…时候才结束。2.Not…until句子要翻译成动作直到…时候才开始。Isleptuntil12o’clock.我睡觉睡到12点。Wedidn’tgetdowntoworkinguntilMsZhangcamein.我们直到张老师进来才开始认真的工作。表示"一…就…"的结构hardly/scarcely…when/before,nosooner…than和assoonas例：Ihadhardly/scarcelygothomewhenitbegantorain.Ihadnosoonergothomethanitbegantorain.AssoonasIgothome,itbegantorain.注意：如果hardly,scarcely或nosooner置于句首，句子必须用倒装结构：Hardly/ScarcelyhadIgothomewhenitbegantorain.NosoonerhadIgothomethanitbegantorain.地点状语地点状语从句常常由where来引导。Gowhereyoulike.Wherethereisawill,thereisaway.Makeamarkwhereyouhaveaquestion.原因状语从句原因状语从句连接词because,since,as,nowthat（既然），forHeisdisappointedbecausehedidn'tgettheposition.Asitisraining,Iwillnotgoout.Nowthatyoumentionit,Idoremember.比较：because,since,as和for1）because语势最强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或since.Ididn'tgo,becauseIwasafraid.Since/Astheweatherissobad,wehavetodelayourjourney.2）由because引导的从句如果放在句末，且前面有逗号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。Heisabsenttoday,because/forheisill.Hemustbeill,forheisabsenttoday.3)because和so不能同用在一个句子里。条件状语从句连词If,unless,once,aslongas,onconditionthat①Ifheisnotintheoffice,hemustbeoutforlunch.②Youmayborrowthebooksolongasyoukeepitclean.③SofarasIknow（据我所知）,hewillbeawayforthreemonths.④Youcangoswimmingonconditionthat(=if)youdon'tgotoofarawayfromtheriverbank.Ifhehadcomeafewminutesearlier,hecouldhaveseenher.⑤目的状语从句连接词so,sothat（从句谓语常有情态动词）,inorderthat,incase（以防，以免）forfearthatSpeakclearly,sothattheymayunderstandyou.①ShehasboughtthebookinorderthatshecouldfollowtheTVlessons.②Heleftearlyincaseheshouldmissthetrain.③结果状语...
