英语人教版八年级下册Unit10 Section A3.docx

Unit10Ivehadthisbikeforthreeyears.SectionAGrammarFocus4dTeachingAims1.KnowledgeAims(1).Studentscanusethekeystructures:Howlonghaveyouhadthatbikeoverthere?那边的那辆自行车你买了多长时间了？Ivehaditforthreeyears.我买了三年了。Howlonghashissonownedthetrainandrailwayset?他的儿子拥有这套轨道火车多长时间了？Hesowneditsincehisfourthbirthday.自他四岁生日起，他就拥有了它。Haveyoueverplayedfootball?你曾经踢过足球吗？Yes,IdidwhenIwaslittle,butIhaventplayedforawhilenow.(2)Thedistinctionbetweensimplepasttenseandpresentperfecttens2.AbilityAims (1)Learn and master how to talk about possessions and things around you by usingthelanguagechunks.(2)Students can make a distinction between simple pas t tense and present perfect tense.(3)Studentscanmakeadistinctionbetweensinceandfor.3.MoralAimsEducatestudentstotreasureeverymomentthatwehave.TeachingKeyPointsStudentscanmakeadistinctionbetweensinceandfor.TeachingDifficultPoints(1)Thedistinctionbetweensimplepasttenseandpresentperfecttense.(2)StudentscanmakeadistinctionbetweensinceandforTeachingMethodsTheactivityteachingmethod,thecooperativelearningmethod,andthetask-basedlanguageteachingmethod.TeachingAidsPPT.TeachingProceduresStep1Warming-up1.EnjoyanEnglishsong.2.Showsomepicturestothestudentsandgetthemtoaskandanswerlikethis:A:Howlonghaveyouhadthisbike?B:Ivehaditfortwoyears.Step2GrammarFocus1.Showthe students somepicturesof fleamarketandaskthemtoaskandanswerinpairs like this:Howlonghaveyouhadthisbook?Foraweek./Sinceaweekago.Haveyoueverplayedbasktall?Yes,Ididyesterdayafternoon.2.Thestudentsreadthegrammarandfillintheblanks:1)Howlong_youhadthatbikeoverthere?Ivehadit_threeyears.2)Howlong_hissonownedthetrainandrailwayset?Hesownedit_hisfourthbirthday.3)_youeverplayedfootball?Yes,IdidwhenIwaslittle,butI_playedforawhilenow.3.Explainthedistinctionbetweensinceandfor.for与since都能与现在完成时连用，但区别较大：for后须接“时间段”HehasstudiedEnglishforfiveyears.他学英语5年了。since后须接“时间点”HehasstudiedEnglishsince1999.他从1999年开始学英语二者可以转换for+一段时间=since+一段时间+agoHehasbeenhereforfiveweeks.=Hehasbeenheresincefiveweeksago.他到这儿已经有五个星期了二者引出的时间状语往往用howlong提问。Ihavehadthisbookfortwoweeks.Howlonghaveyouhadthisbook?Ihavehadthisbooksincetwoweeksago.Howlonghaveyouhadthisbook?4.Explainthedistinctionbetweensimplepasttenseandpresentperfecttense.一般过去时表示在过去某个时间发生的动词或存在的状态，也表示过去经常或反复发生的动作。3e.g.Hecamehereyesterday.现在完成时表示过去的动作（或状态）对现在产生的影响和结果e.g.Hehasbrokenhisbottle.构成不同TomwenttoLondonlastyear.LilyhasbeentoLondontwice.一般过去时的谓语动词用过去式，现在完成时的谓语用“助动词have/has+过去分词”用法不同:现在完成时是表示过去的动作与现在的联系，主要说明的是现在的情况和状态；而一般过去时则强调动作发生在过去某一时间，与现在不发生联系.Ihadsupperanhourago我一小时前吃的晚饭。（表示过去的动作）Ihavejusthadsupper我刚刚吃过晚饭。（强调对现在的影响我不饿）Hewasateacherthen他那时是个教师。（表示过去的状态）Hehasbeenateachersincethen他从那时起一直当教师。（他现在还是教师）一般过去时常与表示过去的具体时间状语连用，现在完成时常与表示一段时间的时间状语连用，或无时间状语。一般过去时的时间状语：yesterday,once,lastweek,.ago,in1980,inOctober,justnow等具体的时间状语。现在完成时的时间状语：for,since,sofar,ever,never,just,yet,till,uptonow,always等不确定的时间状语。Thestudentsdosomeexercise:Choosetherightanswerorfillintheblankswiththeproperformofthewordsgiven.(1).-Ihaveseenthefilm127hoursalready.-When_you_it?A.have,seenB.willseeC.did,seeD.did,seen(2).Mr.Black_inChinasincefiveyearsago.A.lived B.haslived C.livesD.isgoingtolive(3).-_UncleWang_(mend)theTVyet?-Yes,he_.-When_he_it?-Yesterday.(4).-I_(see)thefilmChickenRun.-Wher