时间状语从句专项

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1、WelcomeGengZhongliangDa'anVocationalEducationCenterAdverbialClauses状语从句掌握状语从句的关键1.准确掌握每一个连词的含义。2.注意主句和从句的时态呼应。条件状语原因状语目的状语地点状语比较状语结果状语时间状语让步状语方式状语Adverbialclausesoftime时间状语从句引导时间状语从句的普通类从属连词有when（当……时），while（在……期间），as（当……，一边……一边……），before（在……之前），after（在……之后），since（从……以来），till/until（

2、直到），whenever（无论何时），assoonas（一……就）等。1.MymumwascookingwhenIgotintothekitchen.2.I’llcallhimassoonasIgetthere.3.WhilehewaswatchingTV,hisfathercamein.时间状语从句时间状语从句时间状语从句Doyouknowthesentences?1.连接词when,while的用法区别1).When/Whilehewaseatinghislunch,thedoorbellrang.WhenIstoppedmycar,amancameupt

3、ome.小结：while引导的时间状语从句的谓语动词必须是可延续的，而when引导的时间状语从句的谓语动词是可延续的，也可以是表短暂性动作的动词。2).Whenyouhavefinishedyourwork,youmayhavearest.小结：从句动作发生在主句动作之前时，只能用when引导这个从句，而不能用while。2.用while,when填空：①_____________Iwaswalkingdownthestreet,Inoticedapolicecarinfrontofthestore.②____________Johnarrived,Iwasc

4、ookinglunch.③Iwaswandering（徘徊）throughthestreet_________Icaughtsightofatailor’sshop.When/WhileWhenwhen总结：相当于andatthis/thattime。意思为“正在/刚要……这/那时（突然……）”3、When的特殊用法Wewerehavingaclasswhensomeonebrokein.(突然有人闯了进来).Wewereabouttosetoffwhenitbegantorain.(这时开始下雨了)4).until/till(不用于句首)Hedidnotgo

5、tobeduntilhefinishedhiswork.（直到…才…）=Notuntilhefinishedhisworkdidhegotobed.注意:not…until在句首时主句要倒装5).before“还未…就…”,“不到…就…“…才…”；since“自从”Wehadn’trunamilebeforetired.(我们还没跑到一里就累了）DoitnowbeforeyouforgetIhavebeenteachingheresinceIgraduatedPractising1.I’llwritetoyou_______Igetthere.A.while

6、B.beforeC.assoonasD.by2.Hehaslivedinthecity_________hecamebackfromAmerica.A.whenB.beforeC.sinceD.after3.Wewon’tleavehere_______ourteachercomesback.A.untilB.sinceC.afterD.assoonas4.Ihadtofinishthepicture________mymothercameback.A.untilB.beforeC.afterD.while5.Johnfellasleep________

7、hewaslisteningtothemusic.A.afterB.beforeC.whileD.assoonas6.Itwasquiet________thosebigtrucksstartedcomingthroughthetown.A.beforeB.afterC.untilD.unlessC7.Weweretoldthatweshouldfollowthemainroad_____wereachedthecentralrailwaystation.A.wheneverB.untilC.whileD.whereverB8.Hewasabouttogot

8、obed________thedoor