时间状语从句优质课省公共课一等奖全国赛课获奖课件.pptx

AdverbialClauses条件状语掌握状语从句关键(1)as,while,when连接词类别While,when在句中不一样含义:WhileIwaswalkingdownthestreet,Icameacrossanoldfriend.(while=_______)WhileIreallydon’tlikeart,Ifindhisworkimpressive.(while=_________)Helikespopmusic,whileIamfondoffolkmusic.Strikewhileironishot.Theywerewalkingdownthestreetwhentheysawanaccident.2)Ihadjustgothomewhenitbegantorain.3)Iwasabouttogoswimmingwhenourguidestoppedme.4)It'scoldwhenitsnows.AsIleftthehouse,Iforgotthekey.2.AsIgetolder,Igetmoreoptimistic.3.Helookedbehindashewent.4.Astheweatherissobad,wehavetostayhome.5.Youcandoitasyoulike.6.Oldasheis,heisstillenergetic.Fillintheblankswith“when,while,as”1______youmeetawordyoudon'tknow,consultthedictionary.2.Thestudentstooknotes_____theylistened.3._____thewindrose,thenoiseincreased.4.Shecalled_______Iwasout.5.Wemuststrike______theironishot.6.________youhavefinishedyourwork,youmayhavearest.7.Iwasjustreadingabook______shecameintomyroom.before使用方法1.Wehadsailedfourdaysandfournightsbeforewesawland.2.Wehadn’trunamilebeforehefelttired.3.Pleasewriteitdownbeforeyouforgetit.4.BeforeIcouldgetinaword,hehadmeasuredme.含有before句型结构：1.Itwillbe/was＋一段时间＋before…“过多久才”It_________________________(还要过两年)heleavesthecountry.It______________________(过了很长一段时间)beforehegottosleepagain.2.Itwillbe/was+not＋一段时间＋before…“不多久就……”Itwasn’ttwoyearsbeforeheleftthecountry.Itwasnotlongbeforehecameback.Since使用方法1.IhavereturnedhomefourtimessinceIcamehere.2.Shehasbeenworkinghere(eversince)heleftschool.惯用句型：Ithasbeen(is)+时间段+since从句“自从……有多长时间了”毕业已经有六年时间了。Ithasbeen(is)sixyearssinceshegraduatedfromtheuniversity.（2）引导时间状语从句连接词除上述外还有：①till,until,Don’tgetoffthebusuntilithasstopped.Hewaitedforhisfatheruntil(till)itwastwelveo’clock.②once,assoonas,directly,immediately,AssoonasIhavefinishedit,I’llgiveyouacall.Onceyoushowanyfear,hewillattackyou.Hemadeforthedoordirectlyheheardtheknock.③themoment,theminute,thesecond…一……就hardly/scarcely…when,nosooner…than表示“一……就Wehadhardlygotintothecountrywhenitbegantorain.Hehadnosoonerarrivedthanshestartedcomplaining.④ea