Unit 3Computers核心素养教案.docx
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Unit 3Computers核心素养教案.docx
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Unit3Computers核心素养教案
英语必修二第三单元
Unit3Computers
Thetopicofthisunitareinformationtechnology,historyandbasicknowledgeofcomputersandrobots。
ThemainthemeiscomputerswhichisconnectedwithteachingstudentsalittlemoreofthehistoryanddevelopmentofcomputersandapplicationscomputerswillbevitaltothemodernizationofChina.
Itisimportantforstudentstounderstandthatthedevelopmentofcomputershasbeenaveryrecentthingwhichhasonlybeen100yearssinceCharlesBabbagebegantomakehisfirstmachinethatwasthepredecessorofthepersonalcomputersweusetoday.Understandingthehistoryofcomputerswillhelpthestudentstoseethattherewillbemanychangesaheadinthedevelopmentofcomputersandarousestudents`interestinlearningcomputers.
Newwordsandcollocations:
calculate,universal,simplify,sum,operator,logical,technology,technological,revolution,artificial,intelligence,intelligent,solve,reality,personal,tube,total,network,web,application,finance,mobile,rocket,explore,anyhow,goal,happiness,download,virus,signal,type,coach,arise,electronic,appearance,character,mop,niece,from….on…,asaresult,so…that…,humanrace,inaway,withthehelpof,dealwith,watchover
Abilityaims:
arousethestudents`greatinterestinlearningcomputersandletthemlearntousethemintheirdailylife.
Difficultpoints:
howtodevelopstudents`readingskills,expresstheiropinionsandusepersonificationandchronologywhenwriting.
Importantpoints:
letthemlearnmoreaboutthehistoryandbasicknowledgeofcomputersanddifferentreadingskills.
Step1Leadinginthetopic
1.Showthemsomepicturesofanabacus,acalculator,ahugecomputer,alaptopandaPC.Insomegroups,discusswhattheyhaveincommon,andthenrankthemaccordingtothetimeoftheirappearance.
2.Askstudentstogivetheiropinionsandremindthemofusingthefollowingexpressions:
Ithinkthat……
Inmyopinion,……
Ibelievethat……
What`syourreason?
Whydoyouthinkso?
3.Asksomestudentstotalkaboutwhattheyknowaboutcomputers.
Achainofeventsshowingthedevelopmentofcomputers.
Acalculatingmachinein1642inFrance
→
AnAnalyticalMachine
→
A“universalmachine”in1936
→
Thesizeofalargeroom
→
Madesmallerandsmaller
→
Cleverandquicker
→
Anetworkintheearly1960s
→
Broughtintopeople`shomesin1970s
→
Manynewapplicationssincethe1970s
→→
Today
Step2.Predictingbytalkingfree
1.Askstudentstolookattheheadingandpicturetoguesswhatthepassagemightbeabout.
2.Asksomestudentstogivetheiropinionsbyansweringthequestion:
Howhavecomputerschangedourlife?
Doyouknowinwhatwayscomputersareusedtoday?
Step3.Reading
1.Lookatthepictureandtitletopredictwhatthepassagemightbeabout?
2.Readthepassagefastforthetopicsentenceofeachparagraph:
Paragraphs
Topicsentences
Para1
Ibeganasacalculatingmachinein1642inFrance。
Para2
Mymemoryimproved
Para3
Sincethe1970shavebeenfoundforme
3.Readthetextcarefullyfortheinformationtocompletethetablebelow,describingthedevelopmentofcomputers
In1642
In1936
Bythe1940s
Intheearly1960s
Sincethe1970s
Now
4.根据课文内容填空
Parts
Mainideas
Details
PartI
Thedevelopmentofcomputers
In1642,thecomputerwasbuiltasa(n)calculatingmachine.
Twohundredyearslater,thecomputerwasbuiltasa(n)analyticalmachinebyCharlesBabbage.
In1936,AlanTuringsaidthecomputercouldbeworkedasa“universalmachine”tosolveanydifficultmathematicalproblem.
Bythe1940s,thecomputerwasaslargeasaroom.
Later,thecomputerbecamesmallerandsmaller.
Sincethe1970s,thecomputerhasbeenusedinofficesandhouses.
Thecomputercanshareitsknowledgewithothersthroughthewebsites.
PartII
Theimprovementofcomputer’smemory
Thememoryofthecomputerwasstoredintubes,transistorsandverysmallchips.
Itsmemoryhasgrownalotsincethenetworkappeared.
PartIII
Newapplicationsofcomputers
Communication,financeandtrade.
Robots,mobilephonesandmedicaloperations.
Spacerockets
Providingthehumanracewithalifeofhighquality.
5.Readthetextagaintounderlinetheexpressionsandwritedownintotheirnotebookafterclassashomework:
beginas,acalculatingmachine,bebuiltas,asthattime,atechnologicalrevolution,artificial,intelligence,writeabook,make…workas,solveproblems,fromthenon,insize,both…and…,bythe1940s,goby,asaresult,changeone`sshape,so….that…,belonely,standtherebyoneself,beconnectedby,shareone`sknowledgewith…,becomeimportantin…,put…into….,aswellas,provide….with…,befilledwith…,adevotedfriend,thehumanrace
5.Listentothetextandskimthetextoncemoreandidentifythedifficultsentences.Letthemtryanalyzingthestructuresofthem.
Step4Interviewgames
Askstudentstoworkinpairs.Supposeoneisajournalistandtheotherisacomputer,thejournalistisinterviewingthecomputer.
Step5Learningpersonificationandchronology
Personificationmeanstotreatsomethingasifitwerehumanorhadhumanqualities.Itisofthemosteffectivewaysofusingwordsfiguratively.
Chronologymeanstodescribethingsinorderoftimewhichisoftenusedinrecountinganeventordescribingthelifeofsomeone.Itisaneffectivewaytomakeamassofthingsclear.
Anversion:
I,thecomputer,wasacalculatingmachinein1642inFrance.ThenIwasbuiltasanAnalyticalMachine,whichwasatechnologicalrevolution.Ibecamea“universalmachine”in1936tosolveanymathematicalproblem.IwasnotverybigatfirstthenIbecamehuge,thesizeofalargeroombeforeIwasmadesmallerandsmaller.
Ibecamecleverandquickerandwasconnectedwithothercomputersandturnedouttobepartofanetworkintheearly1960s.Iwasbroughtintopeople`s,andmanynewapplicationshavebeenfoundforme.
Step5Closingdownbyspokenpractice
Talkaboutthedevelopmentofcomputersbyansweringthequestions:
1).Doyouhaveyourowncomputerathome?
2).Howfamiliarwithcomputersdoyouthinkyouare?
3).HowmanytimesdoyouaccesstheInternetnewspaperinaweek?
4).HowmanytimesdoyouaccesstheWorldWideWebinaweek?
5).Howmanytimesdoyousendthee-mailsinaweek?
6).Howmanyhoursdoyouspendininternet“chat”groupinaweek?
7).Doyouthinkthecommercialservicesonthenetarereliable?
8).Ingeneral,howpositiveornegativeanexperienceisitforyoutoworkwithcomputers?
9).Ingeneral,whateffectsdoyouthinkthecomputertechnologyhashadonyourstudy?
10).Ingeneral,whateffectsdoyouthinkthecomputertechnologyhasonhumansocietiesandcultures?
Step6Homework
1.Gooverthetext,andtrytolearnalltheusefulwordsandexpressionsbyheart
2.Finishtheexercisesincomprehendingonpage19.
Artificialintelligencemeansman-madeintelligencewhile“realintelligence”istheintelligencethathumanthathumanbeingsarebornwith.Theterm“artificial”includesallthecalculationsthatacomputercando.Itisdifferentfromhumanintelligencebecauseitonlyworkswithelectricityandcanbeturnedoffwhenthemachineisunpluggedfrothewall.
Transistorsareawayofsendingandstoringinformationthatonlytakeupasmallspace.Theymeantthatcomputercouldbemadesmallerandtheyledtocomputersbecomingsmallandpersonal.
Anetworkisanumberofcomputersthatarejoinedtogethersothattheyallshowthesameprogram.Soanumberofstudentscanworkinthesameroomonthesameprogrambutatdifferentcomputers.
TheInternet(WWW)isaworldwideinformationresourcewherepeoplecandoresearch,goshoppingorsendingmessagestofriends.Whentheysendmessagestheydoitby“e-mail”or“electronicmail”.Themessagesaresentbysatellitetospecialplaceonthegroundthatcanreceivethem.Themtheyaresenttotheaddresswherethepersoncanopenthemandreadthemlikealetter.
The1970swaswhencomputersbecamesmallenoughtocomeintopeople`shomes.Thesecomputersarecalled“personalcomputers”.
Thesecondperiod:
Learningaboutimportantlanguagepoints
Knowledgeaims:
1.Getstudentstolearnandgrasptheimportantusefulnewwordsandexpressions:
calculating,calculator,PC,laptop,common,simplify,simple-minded,artificialintelligence,anyhow,totally,network,truly,race,birth,goby,dealwith,humanrace
2.Importantusefulsentencepatterns:
1)IbeganasacalculatingmachineinFrancein1642.
2)Astimewentby,Iwasmadesmallerandsmaller.
3)AndmymemorybecamesolargethatevenIcouldn`tbelieveit.
3.Abilityaims:
Getstudentstousesomeusefulnewwordsandexpressionscorrectly.
4.Emotionaims:
Stimulatestudents`interestinlearningEnglishandthespiritofcooperation.
5.Importantpoints:
Enablethemtograsptheusagesofsuchimportantnewwordsandexpressionsascommon,anyhow,incommon,inone`sopinion,dealwith,etc.
Getthemtomasterthepattern“AndmymemorybecamesolargethatevenIcouldn`tbelieveit.”
6.Difficultpoints:
Howtogetthestudentstomastertheusagesoftheimportantexpressions
Getstudentstounderstandsomedifficultandlongsentences.
Step1Revision
Checkthehomeworkexercises.
Asksomestudentstoretellthedevelopmentofcomputers.
Step2Vocabularystudy
1.Askstudentstofillintheformaccordingtotherequirement.
n.
adv.
calculate
calculator
true
truly
technological
technology
personal
personally
intelligent
intelligence
total
totally
2.Reviewthenewwordsandexpressionsinallthepartsandhaveadictat
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