人教版高中英语必修二教案：unit 3 computers period 2 warming up and pre-reading.doc

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1、Unit3ComputersPeriod2Warmingupandpre-reading教学方案I.Teachingcontents：Warmingupandpre-readingII.Teachingaims：1ToinspirestudentswithstronginterestinthecomputersandimprovestudentsEnglishability.2).LearnhowtodescribedifferentkindsofcomputersinEnglish.3).Tolearnandrememberthefollowingwords:abacus;calculato

2、r;PC;laptop;PDA;robot;development;universal;III.Keypoints&DifficultiesKeypointsTalkaboutthedevelopmentofcomputers.DifficultiesRememberthenewwords.IV.Teachingprocedure:.StepI:GreetingsTheteachergreetthewholeclass.StepII:Wordspreview:Teacherleadthestudentspreviewsomenewwordsofthisunit.StepIII:Warmingu

3、p1. Warmingupbyguessingtheriddles.(1).Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydontlikemenow.(2).Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseImsmallen

4、oughforyoutotakemewithyou.(3).IamsosmallinsizethatIcanfitinyourhand.Iusuallyhaveasmallscreenusuallybiggerthanadigitalphone,howeversmallerthanthesmallestlaptop,Imagreatwaytostoretelephonenumbers,accesstheinternet,makecalculations,andsoon.(4).Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudent

5、susemewhensolvingmathematicalproblems.(5).Iamverybig.Scientistsusemetosolvesomemathematicalproblems.(6).Imamachinethatworksautomatically.Icandoawidevarietyoftasks,especiallysuitablefordoingjobstooboring,difficult,ordangerousforhumanbeings.(7).Imasmall,relativelyinexpensivecomputerdesignedforanindivi

6、dualuser.Imbasedonthemicroprocessortechnology.Athome,peopleusemetosurftheInternetandplaygames.(answers:1.abacus,2.laptop;3.PDA;4.calculator;5.hugecomputer;6.robot;7.PC)Teacherdescribesthethings,askstudentstrytoguess,2. Numbertheorderoftheabovrthingsaccordingtothedevelopmentofcomputers.(abacusculcula

7、torhugecomputerPClaptopPDArobot)StepIV:Discussion:Studentsmaybeveryfamiliarwiththecomputer,soletthemdiscussthefollowingquestionwiththeirgroupmembers.Doyouknowinwhatwayscomputersareusedtoday?Workoutalistandcompareitwithyourpartner.(Aterthediscussion,asksomeofthegroupstotalkabouttheusageofthecomputers

8、beforealltheclassinEnglish.)StepV:IntroductionoftheComputerjargonTeacheraskthestudentstoshareinformationabouttheComputerjargontheygotbeforecalss.CPU-Anothernameforprocessor,Data-Informationstoredonacomputer,Disk-Aplacetostoredata,Email-Electronicmail,Load-Getdatafromadisk,Save-Putdataonadisk,RAM-Mem

9、ory,themorethebetter,USB-Amethodtoplugcomputertoolsintomachine,WWW-WorldWideWeb,partoftheInternetStepVI.Homework1.Finishexerci搜索引擎优化fthisperiod.2.Pre-viewthetextandunderlinethedifficultpoints.VII.BlackboardDesignUnit3ComputersWarmingupandpre-reading1.abacus,laptop;PDA;calculator;hugecomputer;robot;PC2.CPU-Anothernameforprocessor,Data-Informationstoredonacomputer,Disk-Aplacetostoredata,Email-Electronicmail,Load-Getdatafromadisk,Save-Putdataonadisk,RAM-Memory,themorethebetter,USB-Amethodtoplugcomputertoolsintomachine,WWW-WorldWideWeb,partoftheInternet版权所有：高考资源网(ks5u)