Unit3下册Computers教案 1.docx
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Unit3下册Computers教案 1.docx
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Unit3下册Computers教案1
Unit3Computers
Period1&2,WarmingUp,Pre-reading,andReading
Teachingaims
1.Knowledgeaims
(1)Getthestudentstolearntheusefulandexpressionsinthispart.
(2)Letstudentstolearnabouthistoryandbasicknowledgeofcomputers.
1.Abilityaims
Developstudents'readingabilitiesandletthemlearndifferentreadingskills.
3.Emotionaims:
Arousestudents'greatinterestinlearningcomputersandletthemlearntousethecomputersintheirdailylives.
Teachingdifficultandimportantpoints
1.Letthestudentslearnmoreabouthistoryandbasicknowledgeofcomputers.
2.Getthestudentstolearndifferentreadingskills.
Teachingmethods
1.Task-basedteachingandlearning
2.Cooperativelearning
3.Discussion
Teachingproceduresandways
Step1.Warmingup
Task1:
Howmuchdoyouknowaboutcomputers?
(Makeasurvey)
1.WhatdoesITmean?
Informationtechnology
2.Howtospeak科学技术inEnglish?
Scienceandtechnology
3.WhatdoesPCmean?
Personalcomputer
4.Howtospeak人工智能inEnglish?
Artificialintelligence
5.WhatdoesPDAmean?
Personaldigitalassistant
6.Howtospeak笔记本电脑inEnglish?
Notebookcomputer/laptop
7.WhatdoesW.W.Wmean?
Worldwideweb
8.Whatcancomputersbeusedtodoinourdailylife?
……
Task2:
Whatisit?
Givesomesentencestodescribedifferentkindsofcalculatingobjectsandsomepicturestohelpthestudentstoguesswhatitis?
①AnoldcalculatingmachineusedinChinauntilnow.
Anabacus
②Itisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.
Acalculator
③Itisbuilttosolvesomemathematicalproblems.Butitistoobig.
Ahugecomputer
④Itisacomputerwhichcansolveallkindsofproblemsandisusedwidelynow.
APC/desktop
⑤Itisakindofcomputerwhichcanbetakenconveniently(方便).
Alaptop/notebookcomputer
Step2.pre-reading
Canyouputtheseinventionsinanorderaccordingtothetimewhentheyappeared?
()Analyticalmachine(分析机)
()Laptop
()Calculatingmachine(计算机器)
()Robot/android
()PC
()Universalmachine(通用机器)
Step3.Reading
(1)Skimming
Task1.Findoutthetopicsentencesofeachparagraph(P19.Ex2)
Task2.Summarizethegeneralideaofthispassage.
(2)Scanning
Task1.TrueorFalse
1.In1642Ibeganasacalculatingmachineandcouldsolveanymathematicalproblem.(F:
solveanycalculatingproblem)
2.MyrealfatherwasCharlesBabbage,whowroteabookandbuildmein1936.(F:
AlanTurning)
3.AfterIgotmynewtransistorsinthe1960s,Ibecamesmallerbutclevererandquicker.(T)
4.Iwasbroughtintopeople'shomesinthe1970s.(T)
5.SincemybirthIhavebeenbuilttotaketheplaceofhumanrace.(F:
buildtoservehumanrace)
(3)Careful-reading
Task1:
Lookatthetimelinebelow.Fillintheblankswithinformationfromthereadingtext.
Time
Thedevelopmentofthecomputers
1642
1822
TheAnalyticalMachinewasmadebyCharlesBabbage.
1940s
Thefirstfamilyofcomputerswasconnectedtoeachother.
1970s
now
1642:
Thecomputerbeganasacalculatingmachine
1822:
TheAnalyticalMachinewasmadebyCharlesBabbage.
1936:
Thecomputergrewrapidlybothinsizeandinbrainpower.
1940s:
Thecomputershadgrownaslargeasaroom.
1960s:
Thefirstfamilyofcomputerswasconnectedtoeachother.
1970s:
Computerswereusedinofficesandhomes
Now:
Computersconnectpeopleallovertheworldtogether.
Step4.Conclusionofthetext
Howdidcomputersdevelop?
Acalculatingmachine→_____________→_________________→_________________→________________→_____________→________________→________________→_manynewapplications
Period3VocabularyandUsefulExpressions
◆.common
n. 1.anareaofgrasslandwithnofenceswhichallpeoplearefreetouseorapieceofopenlandforrecreationaluseinanurbanarea(常用于专有名词中):
EverySaturdayJeanwentridingonthevillagecommon.HarlowCommonisverybeautifulinwinter.哈洛公园在冬天时风景很美。
2.incommon:
insharedpossession3.outofcommon:
unusualadj. 1.oforassociatedwiththegreatmassesofpeople:
Thecommonpeopleinthosedayssufferedgreatly.2.tobeexpected;standard:
commondecency.3.commontoorsharedbytwoormoreparties:
commonfriend.4.ofnospecialdistinctionorquality;widelyknownorcommonlyencountered;averageorordinaryorusual:
thecommonman.5.belongingtoorparticipatedinbyacommunityasawhole;public:
forthecommongood.6.commonlyencountered:
acommon(orfamiliar)complaint.7.beingorcharacteristicoforappropriatetoeverydaylanguage:
commonparlance.8.lackingrefinementorcultivationortaste:
behaviorthatbrandedhimascommon.9.ofloworinferiorqualityorvalue:
produced...thecommonclothsusedbythepoorerpopulation.
◆simple
n. 1.anyherbaceousplanthavingmedicinalproperties2.apersonlackingintelligenceorcommonsenseadj. 1.notelaborateinstyle;unornamented:
asimplecountryschoolhouse.2.(botany)ofleafshapes;ofleaveshavingnodivisionsorsubdivisions3.havingfewparts;notcomplexorcomplicatedorinvolved:
asimpleproblem.4.easyandnotinvolvedorcomplicated:
asimplegame.)5.lackingmentalcapacityanddevoidofsubtlety6.exhibitingchildlikesimplicityandcredulity:
simplecourtesy.
◆technology
n. 1.thepracticalapplicationofsciencetocommerceorindustry2.thedisciplinedealingwiththeartorscienceofapplyingscientificknowledgetopracticalproblems
◆universal
n. couplingthatconnectstworotatingshaftsallowingfreedomofmovementinalldirections:
Inmotorvehiclesauniversaljointallowsthedriveshafttomoveupanddownasthevehiclepassesoverbumps.)adj. ofworldwidescopeorapplicability:
universalexperience.
◆mathematical
adj. 1.statisticallypossiblethoughhighlyimprobable:
haveamathematicalchanceofmakingtheplayoffs.2.beyondquestion:
amathematicalcertainty.3.oforpertainingtoorofthenatureofmathematics:
amathematicaltextbook.4.characterizedbytheexactnessorprecisionofmathematics:
mathematicalprecision.5.relatingtoorhavingabilitytothinkinorworkwithnumbers:
amathematicalwhiz.
◆artificial
adj. 1.contrivedbyartratherthannature:
artificialflowers.2.notarisingfromnaturalgrowthorcharacterizedbyvitalprocesses3.artificiallyformal:
Herhusbandhatedtheartificialhumility.
disagree
v. 1.bedifferentfromoneanother2.beofdifferentopinions:
Shedisagreeswithherhusbandonmanyquestions.
◆disadvantage
n. thequalityofhavinganinferiororlessfavorablepositionv. putatadisadvantage;hinder,harm:
Thisruleclearlydisadvantagesme.
◆choice
n. 1.theactofchoosingorselecting:
Yourchoiceofcolorswasunfortunate.)2.oneofanumberofthingsfromwhichonlyonecanbechosen:
Myonlychoiceistorefuse.
adj. 1.ofsuperiorgrade:
choicewines.2.appealingtorefinedtaste:
choicewine.
◆material
n. 1.thingsneededfordoingormakingsomething:
writingmaterials.2.information(dataorideasorobservations)thatcanbeusedorreworkedintoafinishedform:
Thearchivesprovidedrichmaterialforadefinitivebiography.)3.apersonjudgedsuitableforadmissionoremployment:
Hewasuniversitymaterial.4.thetangiblesubstancethatgoesintothemakeupofaphysicalobject:
Coalisahardblackmaterial.5.artifactmadebyweavingorfeltingorknittingorcrochetingnaturalorsyntheticfibers:
Shemeasuredoffenoughmaterialforadress.
adj. 1.directlyrelevanttoamatterespeciallyalawcase:
Hissupportmadeamaterialdifference.2.concernedwithoraffectingphysicalasdistinctfromintellectualorpsychologicalwell-being:
materialneeds.3.concernedwithworldlyratherthanspiritualinterests:
materialpossessions.4.derivedfromorcomposedofmatter:
Thematerialuniverse.5.havingsubstanceorcapableofbeingtreatedasfact;notimaginary
◆mate
n. 1.thepartnerofananimal(especiallyasexualpartner):
Helovedthemareandallhermates.2.afellowmemberofateam:
Itwashisfirststartagainsthisformerteammates.
◆create
v. 1.investwithanewtitle,office,orrank:
Createoneapeer.2.createbyartisticmeans:
Createapoem.3.bringintoexistence:
Thecompanywascreated25yearsago.4.makeorcausetobeortobecome:
createafuror.
◆move
n. 1.theactofdecidingtodosomething:
Hedidn’tmakeamovetohelp.2.theactofchangingyourresidenceorplaceofbusiness:
Theysaythatthreemovesequalonefire.3.theactofchanginglocationfromoneplacetoanother:
Themovementofpeoplefromthefarmstothecities.4.achangeofpositionthatdoesnotentailachangeoflocation:
Movementisasignoflife.v. 1.disposeofbyselling:
Thechairmanofthecompanytoldthesalesmentomovethecomputers.2.liveone’slifeinaspecifiedenvironment:
Shemovesincertaincirclesonly.3.goorproceedfromonepointtoanother:
Thedebatemovedfromfamilyvaluestotheeconomy.4.arousesympathyorcompassionin:
Herfatemovedusall.5.movesoastochangeposition,performanontranslationalmotion:
Hemovedhishandslightlytotheright.6.causetomove,bothinaconcreteandinanabstractsense:
Movethoseboxesintothecorner,please.7.changeresidence,affiliation,orplaceofemployment:
WemovedfromIdahotoNebraska.8.performanaction,orworkoutorperform(anaction):
Wemustmovequickly.9.changelocation;move,travel,orproceed:
Thesoldiersmovedtowardsthecityinanattempttotakeitbeforenightfell.10.giveanincentiveforaction:
Thismovedmetosacrificemycareer.
◆brain
n. 1.partofthecentralnervoussystemthatincludesallthehighernervo
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