人教版 八年级下册Unit61How long have you been collecting shells第一课时 课件

Unit6Howlonghaveyoubeencollectingshells?,SectionA1a-GrammarFocus,1.Howlongdidyousleeplastnight?,Foreighthours.,2.Whendidyoustartclasstoday?,Atseven.,Whatareyoudoing?Iamskating.Howlonghaveyoubeenskating?Ivebeenskatingsincenineoclock.Ivebeenskatingforfivehours.,9oclock,1pm,LiYuchun1984:beborn19872013:sing,Howlonghasshebeensinging?,Whendidshestartsinging?,Shestartedsingingin1987.,Shehasbeensingingfor24years.since1987.,PAIRWORK,YaoMing1980:beborn19892011:playbasketball,Hestartedplayingbasketballin1989.,Hehasbeenplayingbasketballsince1989.,Hehasbeenplayingbasketballfor22years.,成龙(JackieChan)1954:beborn1961now:act,Hehasbeenactingfor51years.,HowlonghasJackieChanbeenacting?,Hehasbeenactingsince1961.,askate,apairofskates,Sheisskating.,Sheisaskater.,Theyarerunningamarathon.,1bListening,Ivebeenskatingforfivehours.,Iskatedforfourhours.,Ivebeenskatingforfivehours.,Iskatedfortwohours.,2aListening,1.Howlongdidyouskatetoday?2.Howlonghaveyoubeenskatingtoday?3.Wasthisyourfirstskatingmarathon?4.Doyouskateeveryday?5.Whendidyougetyourfirstpairofskates?6.Howlonghaveyoubeenskating?,Questions1.Howlongdidyouskatetoday?2.Howlonghaveyoubeenskatingtoday?3.Wasthisyourfirstskatingmarathon?4.Doyouskateeveryday?5.Whendidyougetyourfirstpairofskates?6.Howlonghaveyoubeenskating?,2bListening,Answersa.No,Iskatedinamarathonlastyear.b.Yes,Ido.c.Forsixhours.d.SinceIwassevenyearsold.,Ihaventbeenwritingtheletterfortwohours.Hehasntbeensleepingfor4hours.3.Haveyoubeenwritingtheletterfortwohours?4.Hashebeensleepingfor4hours?,have/has是助动词been是be的过去分词,表示从过去开始一直持续到现在的动作并有可能持续下去,时态现在完成进行时,构成形式：,have/hasbeen+Ving,for+一段时间have/hasbeen+doingsth+since+过去的时间点since+从句(一般过去时),否定句:主语+have/hasnotbeen+v-ing一般疑问句:Have/Has+主语+been+v-ing?,现在完成进行时定义:表示某动作从过去开始,一直延续到现在,常有可能持续下去,这个动作可能仍在进行,也可能停止了。此时态包含现在进行时的含义,也包含现在完成时的含义。常和表示一段时间的状语连用。,Howlonghasshebeendancing?,Shehasbeendancing,for3hours.,since3hoursago.,Pairwork,3hours,45minutes,Howlonghasshebeenlearning?,Shehasbeenlearning,for45minutes.,since45minutesago.,15minutes,Howlonghashebeendrawingapicture?,Hehasbeendrawingapicturefor15minutes.,since15minutesago.,45minutes,Howlonghavetheybeenplayingsoccer?,Theyhavebeenplayingsoccer,for45minutes.,since45minutesago.,HowlonghaveyoubeenlearningEnglish?,WehavebeenlearningEnglishsince2011.,WevebeenlearningEnglishfor2years.,WevebeenlearningEnglishsince2yearsago.,WhendidyoustartlearningEnglish?,WestartedlearningEnglishin2011/2yearsago.,Whatis/aredoing?Howlonghas/have.been?,Practicewithyourpartnerusingsince/for:,20minutes,halfanhour,anhour,Pairwork,1year,5years,50minutes,()1.Whyarethestudentsskating?A.TokeephealthyB.ToraisemoneyforcharityC.Justforfun()2.Howmuchdoeseachstudentraiseeveryhour?A.5yuanB.9yuanC.10yuan,B,C,3aListenandchoose.,()3._hasbeenskatingforthewhole5hours.A.SamB.AlisonC.LuNing,B,Alison,5hours,Sam,4hours,LuNing,4hours,LiChen,1hour,Reading,Whyarestudentsskating?2.Howmuchdoeseachstudentraiseforeveryhourtheyskate?3.Howlonghastheskatingmarathonbeengoing?,Toraisemoneyforcharity.,Tenyuan.,Forfivehours.,Readingagainandanswerthequestions.,4.Whowasthefirsttostart?5.Howlonghashebeenskating?6.HowlonghaveSamandLuNingbeenskating?,Alisonwasthefirsttostart.,Hehasbeenskatingforfivehours.,Theyhavebeenskatingforfourhours.,7.Howlonghastheskatingmarathonbeengoing?8.Howmanyskatersarestillskating?,Fourskatersarestillskating.,Ithasbeengoingforfivehours.,9.Whowasthelastone?10.Whendidhestart?11.Howlonghashebeenskating?,Hestartedanhourago.,Hehasbeenskatingforanhour.,LiChenwasthelastone.,3bItsnow2pm.WritetheStudentsnamesfrom3aonthetimeline.,Alison,Sam,LuNing,LiChen,2._isthemeetinggoingtolast?Abouttwentyminutes.A.HowfarB.HowsoonC.HowlongD.Howoften,选择填空。1.Mr.Green_inChinasincefiveyearsago.A.livedB.haslivedC.livesD.isgoingtolive,练习坊,4.IfI_enoughmoney,I_ahospitalforSARSpatients.A.willhave,buildB.willhave,willbuildC.have,willbuildD.have,build,3.Ihavebeenskating_twohours.A.inB.atC.forD.since,5.Hesbeencollectingshells_hewastenyearsold.A