Topic3Theworldhaschangedforthebetter.SectionAThemainactivitiesare1aand3.本课重点活动是1a和3。Ⅰ.Teachingaimsanddemands教学目标1.Learnsomenewwordsandaphrase:asamatteroffact,discover,direct,possible,fair,invention,excite2.Learnsomeusefulsentences:(1)Oh,youwillgetusedtoitverysoonifyoucome.(2)Youmustcomeforavisit.3.Learnthepresentperfecttensewith“for”or“since”:(1)YouhavebeeninNewYorkforalongtime.(2)ThecityhasimprovedalotsinceIcamehereafewyearsago.4.Masterwordformation:derivation.5.TalkaboutchangesinNewYork:(1)Iheardthetraffictherewasterribleandalmosteveryonedrovetoofast.(2)Asamatteroffact,it’sawonderfulplacetolive.Ⅱ.Teachingaids教具多媒体/几张新旧北京图片/录音机/图片/单词卡片/小黑板或幻灯片Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:10分钟)引导学生用现在完成时谈论北京的变化，引出for和since的用法及部分短语，并导入新课。1.(师生对话，复习含有ever,never,just等词的现在完成时。)T:S1,haveyoueverbeentoBeijing?S1:No,Ihaven’t.Ihaveneverbeenthere.T:Whataboutyourelderbrother?Hasheeverbeenthere?S1:Yes,hehasjustcomeback.T:Howlonghashestayedthere?S1:Forabouttwoweeks.(帮助学生回答。)(板书并适当讲解，要求学生初步掌握for在现在完成时中的用法。)Hehasstayedthereforabouttwoweeks.T:IwenttoBeijingin1995.Atthattime,thestreetstherewereverydirty.Thehousesweresmallanddark.Asamatteroffact(Infact),greatchangeshavealreadytakenplacesince1984.Whatchangeshavetakenplace?HerearesomepicturesaboutoldBeijingandmodernBeijing.Compareanddiscussthem.(教师边叙述边板书画线部分，并作适当讲解，要求掌握asamatteroffact和since的用法。)asamatteroffact=infactGreatchangeshavealreadytakenplacesince1984.2.(教师用多媒体或图片展示几组北京过去和现在的画面，让学生观看、讨论北京的变化引出纽约的变化。)T:Beijinghaschangedalot.Whocandescribeit?(教师手指过去北京城的图片。)S1:Thehousesweresmallandthestreetswerenarrowinthepast.T:You’reright.Whocandescribethispicture?(教师手指现在北京城的图片。)S2:TherearelotsoftallbuildingsinBeijingnow.S3:Moreringroads.S4:Peoplecanenjoymoresortsofleisureactivities.…T:Welldone!ThechangeshavetakenplacenotonlyinChinabutalsointheworld.Nowlet’slistentothetapetoknowaboutthechangesinNewYork.Step2Presentation第二步呈现(时间:10分钟)听录音，呈现1a内容，然后让学生自己观察文中含有for,since的句子，归纳for,since的用法，教师作适当讲解并要求学生掌握。1.(学生听两遍录音后，回答教师的问题。)T:Now,whocananswerthequestion:HowwasNewYork’straffic?S1:Thetrafficwasterribleandalmosteveryonedrovetoofast.T:You’reright.Whataboutitsstreetsinthepast?S2:Thestreetsweredirty.T:Doesitchangenow?S2:Yes.Itisquitecleannow.T:IsNewYorkadangerousplacenow?S3:No,itisn’t.Itwasdangerousinthepast.T:IsNewYorkawonderfulplacetolivenow?S4:Yes,itis.T:Good.Asamatteroffact,therearebeautifulparks,goodschools,famousmuseumsandexcellentrestaurantsnow.Andyoucangotoplays,concertsandoperaseverydayifyoulike.IfyouwanttoknowmoreaboutNewYork,youmustcomeforavisitthere.Doyouwanttogothere?Ss:Yes.Ofcourse.T:Ihopeyouhavechances.Nowlet’sreadafterthetape.2.(教师播放录音，学生跟读一遍，同时找出含有for,since的句子，与前面板书的完成时的句子板书在一起。)Hehasstayedthereforabouttwoweeks.YouhavebeeninNewYorkforalongtime.Greatchangeshavealreadytakenplacesince1984.ThecityhasimprovedalotsinceIcamehereafewyearsago.3.(引导学生观察上述句子，分析for与since的区别。帮助学生总结for与since的用法并要求初步掌握。)for+时间段时间点since+从句Step3Consolidation第...
