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1、Unit4AmazingScienceTopic2SectionC教案Teachingaimsanddemands1.Learnthenewwordandphrase:storm,baseon2.Reviewthepassivevoice.3.LearnsomethingmoreaboutMars.Teachingaids录音机/音乐磁带/地理课堂教学挂图之八大行星/听力任务幻灯片/多媒体TeachingPlanStep1Review利用八大行星图,复习上节课内容。T:Boysandgirls,lookatthe
2、picture.Let’ssaysomethingaboutit.Canthemoonbevisited?Ss:Yes,itcan.T:Yes,menhavealreadybeenthere.Cantheearthbevisited?Ss:Yes.(全体笑)Weliveontheearth.T:Boysandgirlsaskandanswerquestionsinpairslikethis.OK?Ss:Yes.T:NowI’mgoingtochoosepairstoaskandanswer.T:Thereisgo
3、ingtobeaninternationaljourneytoexploreMarsoneday.(指着挂图上的火星说。)T:Marsisatadistanceofabout228millionkilometers.Step2Presentation1.让学生听录音1a，并设置听力任务，幻灯片出示听力任务。T:Boysandgirls,let’slistentothetape.Andanswerthequestionsonthescreen.A.Whatdoesitlooklike?B.Canpeoplelive
4、thereeasily?听完后，让学生回答问题，教师核对答案，有必要可再放一遍。A.Itlookslikearedandorangeball.B.No,theycan’t.2.让学生读1a,找出文中的疑难和关键词，并画出来。培养学生自主学习的能力。T:Boysandgirls,pleaseread1a.Findoutthedifficultiesandimportantwordsandexpressions.3.教师讲解所画出的疑难点，学生找出关键词。T:Haveyoufinishedalready?S1,ple
5、ase.S1:Itisreportedthat…,takepartin,looklike…S2:Goaround,asbigas…T:OK.Youdidverywell.Step3Consolidation学生根据关键词复述1a，加深理解，提高表达能力。T:Pleaseretellthepassageaccordingtothekeywordsontheblackboard.Iwillsaythekeyword,youmakesentencestogether,OK?Ss:OK.T:ReportedSs:Itwa
6、sreportedthatChinaplanstotakepartinaninternationalflighttoexploreMars.T:Good.Looklike.Ss:WhatdoesMarslooklike?T:Goesaround.Ss:Marsgoesaroundthesunatadistanceofabout228millionkilometers.T:Asbigas.Ss:Itisaquarterasbigastheearth.T:Aredandorangeball.Ss:Marslooksl
7、ikearedandorangeball.T:Great,next.Thegravity.Ss:ThegravityonthesurfaceofMarsisaboutonethirdasstrongasitisontheearth.T:Thetemperature.Ss:ThetemperatureonMarsisbetween-140℃and20℃.T:Eightmonths.Ss:IttakesaspaceshipfromearthabouteightmonthstoreachMarswhenthetwopl
8、anetsareclosesttoeachother.T:Searchfor.Ss:ScientistsaresearchingformoreinformationaboutMarseachyear.T:Excellent.Youdidagoodjob.Step4Homework1.写出下列动词的过去式、过去分词。takelandflybecomebuildmakesen
