主备人：张海红时间：2012.03.16学生姓名：课题：Unit6.Howlonghaveyoubeencollectingshells?(Period1SectionA1a---2c)课型新知预展课学习目标:1.---Howlonghaveyou/hasshedoingsth?---Ihave/Shehasbeendoingsthfor/since…2.掌握现在完成进行时的用法，并谈论人们做某事持续的时间。3.区分”for”和“since”。学习重点：现在完成进行时，区分”for”“since”StepI:Revision.1.Cathy___________(begin)tolearnChinesein2005.2.TomandMary___________(come)toChinalastmonth.3.He(study)historyforhalfanhoureveryday.4.It’snineo’clock.He_______________(read)intheclassroom.5.I(visit)Shanghaiintwoweeks.StepII:Learning.Task1:Makesentenceslikethis.eg:IhavebeenreadingEnglishbooksfor5hours.我已经读英语读了5个小时了。1.I______________________________(playing)for6hours.2.I______________________________(doinghomework)for45minutes.3.She______________________________(eating)since30minutesago.现在完成进行时表示从（过去／现在／将来）某一时间开始一直延续到（过去／现在／将来）的动作。其结构是：Task2:Makeconversationslikethis.Shereadsbookswhenshewasfiveyearsold.Shelikesreading.Shestartedreadingat7:00.Nowitis9:00.A.Howlonghasshebeenreading?7:00.2hoursago.B.Shehasbeenreadingfor2hours.sinceShewasfiveyearsold.Task3Listeningpractice.1b-2bTask4:用since和for填空：1.Thesestudentshavebeenskatingnineo’clock.2.Sallyhasbeenworkinginthefactoryfiveyearsago.3.Theoldladyhasbeenlivinginthevillage1970.4.Theyhavebeenwritingtoeachothermanyyears.Task5:句型转换1.Ihavebeenskatingfor6years.一般疑问句:肯定回答:否定回答：对划线部分提问：2.Theyhavebeenteachingforsixyears.（同上）3.Benhasbeencollectingshellssince8yearsago.（同上）4.Mymotherhasbeenworkingsince1980.（同上）5.Tom'ssisterhasbeencookingsicehewaseightyearsold.（同上）StepIIIExercises.1.I’vebeenskating__threehourstoday.A.aboutB.forC.since2.We’vebeenstudyingEnglish__twoyearsago.A.forB.fromC.since3.Shestartedskating__9o’clock.A.forB.atC.since4.Sam__collectingshellsforfiveyears.A.isB.startedC.hasbeen5.Howlonghaveyou__today?A.SwimmingB.beenswimmingC.startedswimming阳泉市第十二中学八年级英语学科学案主备人：张海红时间：2012.3.学生姓名：课题：Unit6.Howlonghaveyoubeencollectingshells?(PeriodII.SectionA3a-SectionB2b)课型新知预展课（阅读课）学习目标：1.Readthetextfluently.2.Fi