高一新课标必修二第三单元英语教案

1、Module2Unit3ComputerPeriod1.Warming-up&IntensiveReading教学设计Teachinggoals:1. Tohaveabetterunderstandingofthemainideaofthepassage.2. ToenablethestudentstotalkaboutcomputersandrobotsinEnglishandexpressorsupportanopinionwithsuitableexpressionsenablethestudentstograsptheprogressofcomputers4.Toenablet

2、hestudentstotalkaboutcomputersandrobotsinEnglishTeachingaids:Computer,recorderandprojectorTeachingprocedures:Step1.Lead-in(Wordpuzzle)T:Thetechnologydevelopssoquicklythatmanynewthingsappearinhumanbeing'slife.Let'sguesswhattheyare(:showthepictureonthescreenandgetSstosayouttheanswers,learnthen

3、ewwordsatthesametime)AnoldcalculatingmachineusedinChinauntilnow.(Anabacus)Itisbuilttosolvesomemathematicalproblems.Butitistoobig.(Ahugecomputer)Itisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.(Acalculator)Itisapersonalcomputerwhichcansolveallkindsofproblemsandisusedwidelyno

4、w.(APC/personalcomputer)T:IfIamamathteacher,whichcanhelpmemost(Askstudentstogivetheiropinions,remindthemofusingtheexpressionsofgivingopinions)Askstudentstodiscusswhattheitemsjustshownhaveincommon,andthenrankthemaccordingtothetimeoftheirappearance.Asksomeofthestudentstotalkaboutwhattheyknowaboutcompu

5、ters.Askstudentstodiscuss“Howhavecomputerschangedourlifea”nd,thenhavesomeofthemgivetheiranswers,usingtheexpressionsofgivingopinions.Step2Pre-readingT:HavethecomputerandInternetbecomepartofyourlifeHowhavecomputerchangedourlives(Whatcanyouusethemtodo)Ss:IusethecomputerorInternetto:typemyhomework/drawp

6、ictures/playgamescommunicatewithmyfriends./gatherrelatedinformationformylessons/buythethingsIlike,/listentomusic/watchmoviesT:WhatelsedoyouthinkthecomputerandInternetwillhelpyoutodoDealwithEx3ofPre-readingonPage17Step3SkimmingGivestudentsonly1minute,thenaskthemtogetthemainideaofthepassageThemainidea

7、ofthepassage:Thisisashortoftheofcomputers.WhoamI(Acomputer)(shownonthescreen)Step4ScanningGivestudents2minutes,andaskthemtoscananswerstothefollowingquestions:(Beforestudentsreadthepassage,tellthemthatattentionshouldbepaidtothehintsofthetime.)(Questionsareshownonthescreen)Question(1)Whatisthemainidea

8、ofthepassageStudentsareaskedtofindoutthreesentencestosupportwhothespeakerisinthestory.1) Thenin1822Iwasbuilt.(Itselfwasthefirstdesignofacomputer)2) MyrealfatherwasAlanTuring.(Hedesignedthefirstrealcomputer.)3) However,peoplethoughtIwassimple-mindeduntil.,(Ithasartificialintelligence.)Question(2)What

9、happenedtocomputersin1642Question(3)Whathappenedtocomputersin1936Question(4)Whathappenedtocomputersin1970sStep5DetailReadingI Givestudents5minutestoreadthepassagecarefully,andanswerthefollowingquestions:Question(1)WhowasthefirstpersontodescribehowthecomputerwasmadetoworkQuestion(2)Whatdidhemakeandwh

10、atdiditdoQuestion(3)WhowasthenextimportantpersontodesigncomputersII TrueorFalse1. In1642Ibeganasacalculatingmachineandcouldsolveanymathematicalproblem.F2. MyrealfatherwasCharlesBabbage,whowroteabookandbuildmein1936.F3. AfterIgotmynewtransistorsinthe1960s,Ibecamesmallerbutclevererandquicker.T4. Iwasb

11、roughtintopeople'shomesinthe1970s.T5. SincemybirthIhavebeenbuilttotaketheplaceofhumanrace.FIII ComprehendingAskstudents:”Howisthepassageorganized”(Ifthestudentscannotanswerthequestion,drawtheirattentiontotheappearanceofdifferentyears.)FillthetableAchainofeventsshowingthedevelopmentofcomputer/Cha

12、ngesofthemachineTimeline1642:theAnalyticalMachinewasMadebyCharlesBabbage.1936:1960s:thefirstfamilyofcomputerswasconnectedtoeachother.1970s:Now:Explainhowthecomputertechnologyhasbeendevelopingandcompletethefollowingchart.Thengiveabrieforalpresentationonthedevelopmentofcomputertechnologywiththehelpoft

13、hechart.Step6Summing-upandenjoyingI. Askstudentstofinishtheformshownonthecareen(thesameasonwhileplayingthevoiceofthetextII.Askstudentstoex-changetheirownanswersingroups,andthenraisequestionsiftheyhaveany.III.Sumup:1)ChronologicalwritingChronology(资料等)按年代次序的排列Chronologicalmeanstodescribethingsinorderoftime.Chronologyisoftenusedinrecountinganeventordescribingthelifeofsomeone.Itisaneffectivewaytomakeamassofthingsclearer.Step7OralpracticeRetellthetextusingChronological1. Havestudentsgetpreparedin2or3minutesandthenretellthedevelopmentofcomputers