一、射间状诗从句常用引导词：when,as,while;assoonas,before,after,since,till,until,not...till（until）,once特殊弓丨导词:theminute,themoment^thesecond^theinstant;immediately^directly^instantly;..than;hardly（scarcely）...when（before）=not...before...）\bythetime...;everytime,eachtime,whenever;nexttime;thefirst/lasttime;6.Someonecalledmeupinthemiddleofthenight,buttheyhungup_________Icouldanswerthephone.A.asB.sinceC.untilD.before7.Scientistssayitmaybefiveortenyears________itispossibletotestthismedicineonhumanpatients.A.sinceB.beforeC.afterD.when弐.地点状语从句引导常用引学词：where特殊引导词：wherever1.Manyplacesarefloodedbyheavyrainfalls,sotheycan'twalk________theylikethesedays.A.whenB.wheneverC.whereD.wherever2.一Thethreadofmykitebrokeanditflewaway.一1hadtoldyouitwouldeasilybreak_______itwastheweakest.A.whenB.whereC.unlessD.since参.原因状语从句原因状语从句用because（因为）,since（既然）,as（由于）引导;for并列连词,不能放在句首，主要放在門个并列句之间。foi•所提供的理由为一个补充说明，而且前面常有逗号隔开。常用引导词:because,since,as特殊引导词:when（既然），nowthat,consideringthat,giventhat;inthat（因为）;seeingthat1.Thedaymustbebreaking,______thebirdshavebegunsinging.A.becauseB.asC.forD.since2._____youaresoweak,you'dbetterstayathome.A.SinceB.ForC.BecauseD.Though3.Whydoyouwanttofindanewjob______you，vcgotsuchagoodonealready?A.thatB.whereC.whichD.when4.一IsMr.Smithintheoffice?一Yes,______heisinchargeoftheoffice,hemustbethere.A.sinceB.howeverC.whetherD.for5.Animalssufferedatthehandsofman________theyweredestroyedbypeopletomakewayforagriculturallandtoprovidefoodformorepeople.A.inwhichB.forwhichC.sothatD.inthat四、条件状语从句常用引导词：if,unless特殊引导词：as/solongas,incasethat,onlyif（只有），providing/providedthat,suppose/supposingthat,onconditionthat1.一ShallBrowncomeandplaycomputergames?一No,_________hehasfinishedhishomework.A.whenB.ifC.unlessD.once2.____Ilive,Iwillnevergiveintotheenemy.A.AsfarasB.AslongasC.AswellasD.Assoonas3.1wouldappreciateit_____youcouldcallbackthisafternoonforthedoctor^appointment.nosooner.1.HardlyhadhearrivedinHongKong______sherangmeup.A.whenB.thanC.that2.Bythetimeyou_____back,thesupper_______ready.A.willget;willbeB.get;wasC.get;willbe3.1wasabouttoleavemyhouse_____thephonerang.A.whileB.whenC.as4.1hadcutthemeatintopieces_____Motherstartedcooking.A.whenB.assoonasC.after5._____hetookpartinthecompetition,hewonasecondprize.A.ForthefirsttimeB.AtatimeC.AtonetimeD.andwasD・willget;isD.afterD.whileD・ThefirsttimeA.untilB.ifC.whenD.that伍.目的状语从句常用引导词：sothat,inorderthat特殊弓丨导词：incase,forfearthat,inthehopethat,forthepurposethat目的状语从句的谓语常含有may,might,can,could,should,would等情态动词。1.Johnshuteverybodyoutofthekitchen_____hecouldpreparehisgrandsurprisefortheparty.A.whichB・whenC.sothatD.asif2.Johnmayphonetonight.Idoiftwanttogoouthephones.A.aslongasB.inorderthatC.incaseD.sothat六、结果状语从句引导常用引导词：so...that,such...that,sothatThetwogirlslookmuchalikenoonecantellthemapart・A.so,thatB.so,andC.as,thatD.such,that七、让步状灣从句常用弓丨导词：though,although,evenif,eventhough特殊引字词：as(用雀让步状语从句申必须要倒装)，while(一般用在句首),nomatter+连接词•••；whateverwhoever,wherever,whenever,however,whichever,whether・.・0匚.・,inspiteofthefactthat...although和though都表示“虽然”只是although更正式，多用于句首，而though用于句...