Unit 4 Topic 1 Section B 教案

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1、Unit4AmazingScienceTopic1SectionBTeachingaimsanddemands1.Learnsomenewwords:clone,experiment,direct2.Goonlearningthepastsimplepassivevoice:(1)Whenwasitinvented?(2)Itwasinventedin1879.3.Learnsomeinformationabout“clone”.Teachingaids录音机/多媒体课件或教学挂图TeachingPlanStep1Review

2、1.做一个链式游戏，以小组为单位，就课本昨天学过的计算机，MP3，英语学习机，手机，数码相机或学习用具等进行对话，用bemadeof/bemadein/bemadefrom/beusedfor的句型进行操练。以一小组的第一个同学回过头去问下一位同学，依次接着往下问。T:Boysandgirls.Let’splayagame.Askquestionsonebyone.S1:HowdoyousayitinEnglish?(钢笔)S2:Apen.S1:What’sitmadeof?S2:It’smadeofsteelandplast

3、ic.S1:Whenwasitmade?S2:Itwasmadein2006.S1:What’situsedfor?S2:It’susedforwriting.T:Doyouunderstand?Students:Yes.T:OK.Let’sbegin.Step2Presentation1.播放1a录音，让学生回答以下问题。然后核对答案。T:Listentothetape,andthenanswerthefollowingquestions.(1)Whoinventedthelightbulb?(2)Whenwasthelig

4、htbulbinvented?(3)Whenwastheradioinvented?2.指导学生阅读3a,教师板书文中的关键词和短语，为学生复述短文做准备。T:Wehavelearnedalotofinventions.Nowwearegoingtolearnsomethingnewaboutagreatinvention—clone.Pleaseread3acarefully.Andfinish3b.Youshouldfinishitin5minutes.3.让学生听3a并跟读，画出生词和重点词组。T:Pleaseliste

5、nto3a.Andreadafterit.Findoutthenewwordsandimportantphrases.(学生听完录音后，与教师板书的内容对照，并朗读课文3a，教师讲解本课重要词组。)Step3Consolidation1.引导学生看黑板上表格中的信息，讲述三项发明的情况，巩固1a。鼓励学生使用本课的目标语言：一般过去时的被动语态。T:Now,lookatthechartontheblackboardandtrytosaysomethingabouttheinventionsweLearnedjustnow.S1

6、:ThelightbulbwasinventedbyThomasEdisonin1879.S2:TheradiowasinventedbyGuglielmoMarconiin1895.S3:TheairplanewasinventedbyWilburandOrvilleWright.Itwasinventedin1903.T:Welldone!NowsupposeyouareJaneandMichael.You’revisitingtheScienceMuseum.Talkaboutthethreeinventionsaswe

7、learnedjustnow.Thenactitout.Getreadyforitfor3minutes,OK?T:Justnow,we’relearnedsomethingaboutcloning,lookatthewordsontheblackboard.Canyousaysomethingabout“clone”?S3:Dolly,aclonedsheep?S4:Yeah.It’swell-known.S5:Cloningisknownasagreatexperimentallovertheworld.S6:Good!S

8、7:ShewascreatedinScotlandafewyearsago.S8:Sofar,manhasclonedrabbits,sheep,cows,mice,pigsandsomeotheranimals.T:Excellent!Now,repeatwhatyousa