Unit4Topic3SectionAThemainactivitiesare1aand2a.本课重点活动是1a和2a。Ⅰ.Teachingaimsanddemands教学目标1.Learnthenewword:research2.Helpthestudentstolearntheusageofpassivevoice.3.TalkaboutflyingtoMarsandtheouterspaceandsomethingaboutthealiens.4.Helpstudentstolearnexpressingpossibilityandimpossibility.Ⅱ.Teachingaids教具录音机/一个破损的MP3Ⅲ.Five-fingerTeachingPlan五指教学方案Step1Review第一步复习(时间:14分钟)1.(复习一般过去时的被动语态。)T:Goodmorning.Boysandgirls!(突然面色表情由晴转阴。)WhathappenedtomyMP3?Itwasbroken.(把坏的MP3给同学们看，面带心痛神色。)WhowasmyMP3brokenby?(转向全体同学。)Wasitbrokenbyyou,S1?(对前排的一个同学提问。)(同学们笑，然后开始猜测，教师引导学生用英语表达。)S2:Wasitbrokenbyyourself,Miss/Mr.…？T:No.S3:Wasitbrokenbyyourdaughter?T:Exactly.Itwasbrokenbymydaughter.(板书)was/were+P.P.2.(引导学生谈论前面学过的发明物的情况如克隆及机器人等。鼓励更多的同学开口用学过的句型来表达，提高学生的口语表达能力。)T:We’velearnedcloning.NowI’dlikesomestudentstosaysomethingaboutcloning.S4:TheclonedsheepcalledDollywascreatedinScotlandafewyearsago.S5:Cloningisknownasagreatexperimentallovertheworld.(加重语气读被动语态部分。)S6:Sofarscientistshaveclonedrabbits,sheep,cows,mice,pigsandsomeotheranimals.S7:ThereisDNAinmostlivingthings.DNAisthesameineverypartofyourbody.T:Great.I’mverygladthatyoudidsowell.IhopeeveryoneofyoucanhaveachancetospeakEnglishinourclass.3.(教师引导学生谈谈宇宙，导入新课及语法。)T:Thesearemanyusefulinventions.Theyhavechangedourlife.Withthedevelopmentofourtechnology,therewillbemoreandmoreusefulinventions.YangLiweihasflownintothespacesuccessfully.MaybepeoplewillflytoMarsoneday.Doyouthinkitismagical?Ss:Yes,that’sveryexciting.S8:IwanttobeanastronautlikeYangLiwei.S9:FlytoMars?CanwedothesamethingonMarsasontheearth?T:Yes,we’llbeabletodoanythingthatcanbedoneontheearth.(板书并解释。)We’llbeabletodoanythingthatcanbedoneontheearth.↓modalverb+be+p.p.T:Doyouthinktherearealiensinspace?S10:Idon’tthinkalienscanbefoundinspace.S11:Iwon’tbelievetherearealiensuntilIseethemwithmyowneyes.(板书)seesomebody/somethingwithone’sowneyesT:OK,Ithinkscientistswilldoexperimenttoresearch.Soscientificresearchshouldbedonecarefully.(教师释义并领读生词research,scientific。)T:Boysandgirls.Ifyoucanbeanastronautoneday,maybeyoucandomoreresearchaboutspace.Butyoushouldstudyhardnowtomakeyourdreamcometrue.Step2Presentation第二步呈现(时间:8分钟)1.(播放1a录音,让学生带着问题听,提高学生的听力能力。)T:Boysandgirls.Let’slistentothedialogandanswerthequestions.(板书)1.WhataretheygoingtodothisSaturdayevening?2.Isitamovieaboutaliens?3.WhatcanpeopledoonMarsinthatmovie?T:Boysandgirls.Canyouanswerthequestions?(与学生核对答案。)2.(打开课本，将学生分成两部分朗读1a，让学生画出关键词，再读一遍后,完成1b。)T:Openyourbooks.Group1andGroup2actJane.Group3andGroup4actMichael.Readthedialog.Afterreading,findoutthekeywordsinit.Readonceagainandfinish1b.(板书)movie,lifeinspace,exciting,travelby,visitplanets,liveonMars,liveinspace,houses,there,schools,hospitalsandcities,canbedone,can’twait(核对1b的答案。)3.(让学生找出对话中的新语法句型modalverb+be+P.P，进行操练。)T:Wehavelearned“is/are+P.P.andwas/were+P.P.”.Pleasefindoutsentencewith:modalverb+be+P.P.(教师强调带有情态动词的被动语态结构。)T:Boysandgirls,I’llsayasentenceinactivevoice.Youcanchangeitintopassivevoice,OK?Ss:OK.T:Weshouldcleanourclassroomeveryday.Ss:Our...
