高中英语人教版必修二unit3Reading.ppt
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高中英语人教版必修二unit3Reading.ppt
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Guess!
Atoy?
Ahandbag?
keyboardmousemonitorscreenspeakerhostcomputerWhatEnglishwordsdoyouknowaboutcomputers?
Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydontlikemenow.DoyouknowwhoIam?
DoyouknowwhoIam?
abacusGuessmore:
Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?
DoyouknowwhoIam?
calculatorIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseImsmallenoughforyoutotakemewithyou.notebookcomputer/laptopDoyouknowwhoIam?
DoyouknowwhoIam?
AhugecomputerPCPDAcalculatorabacuslaptopWriteoutallthewordsyouknowaboutputermonitorclicksoftwaresearchupdatedownloadInternetkeyboardWhoamI?
Skimming:
Gooverthestorytofindoutwhothespeakeris.Writedown3sentencestosupportyouridea.Itisacomputer.IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.”MyrealfatherwasAlanTuring.”IwasbuiltasanAnalyticalMachinebyCharlesBabbage.”TimelineThecomputerbeganasacalculatingmachineThecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.1642:
_1822:
TheAnalyticalMachinewasmadebyCharlesBabbage.1936:
__1940s:
_:
Thefirstfamilyofcomputerswasconnectedtoeachother.1970s:
_Now:
__ScanningParagraph1Paragraph2Paragraph3TopicsentenceSupportingdetailsOvertimeIhavebeenchangedquitealot.CalculatingmachineAnalyticalmachineUniversalmachinePClaptopThesechangesonlybecamepossibleasmymemoryimprovedTubesTransistorsChipsNetworkWorldwidewebSincethe1970smanynewapplicationshavebeenfoundforme.CommunicationsFinanceTradeRobotsMobilephonesMedicaloperationsSpacerocketsProvidingalifeofhighqualityIn1642Thecomputerbeganasa(n)1._machineinFrance.About200yearslaterThecomputerwasbuiltasa(n)2._machineThecomputerwasprogrammedbyanoperatorusing3._.In1936Abookabouthowtomakeacomputera(n)4.“_”waswrittenbyAlanTuring.Fromthenon,thecomputergrewrapidly.calculatinganalyticalcardswithholesuniversalmachineFromthe1940stothe1970sThecomputerwasmadesmaller,andits5._becamebetter.ThecomputercouldmemorizeallthethingsDuringthattime,thefirstPCandthefirst6._weremade.In7_Computerwereconnectedbya8._.Throughthenetwork,peoplecould9._knowledgeandinformation.Sincethe1970sComputershavebeenusedinmany10._.memorylaptoptheearly1960ssharenetworkways1.WhatisPC?
Speakthenameonthewhole.Itmeans:
personalcomputer.2.WhatisIT?
InformationTechnology.3.WhatisPDA?
Personaldigitalassistant.4.WhatisW.W.W?
Worldwideweb.5.科学技术科学技术Scienceandtechnology.6.人工智能人工智能Artificialintelligence.7.笔记本电脑笔记本电脑Notebookcomputer.8.Whowasthecomputersrealfather?
AlanTuring.Whataretheadvantagesanddisadvantagesofthecomputers?
Inmyopinion,Icanusethecomputerto.DiscussionWecanusethecomputerto.listentomusicWatchmoviessearchforcommunicatewithdoshoppingAdvantagesWecanusethecompuersto1.useacomputerforschoolwork2.playgamesonthecomputer3.sendemailstofriends4.downloadmusicandfilms5.goshoppingonline6.useQQtomakemunicatewithothers8.usetheInternettosearchforinformation9.surfthewebforfun10.readnewsbothathomeandabroad,readbooksandmagazinesDisadvantages1.Somestudentsmaygettooaddicted(沉沉溺于溺于)toit.2.Somestudentswastetoomuchtimeinplayingcomputergames.3.Somestudentsspendtoomuchtimeinchattingwithothersandmaybecheated(欺骗欺骗)bysomeoneonline.4.Asaresult,theyhavelittletimetostudy5.Itisbadforoureyesandhealthtospendlongtimeinfrontofcomputers.Howusefulcomputersare!
DoourschoolworkPlaycomputergamesSendemailsSeemoviesChatwithfriendsGetusefulinformationShoppingonlineListentomusicInternetComputershavegreatpower.Theymakeourlivesmorecolorfulandmoreconvenient.BUTDontjustusecomputersforfun.Dontspendtoomuchtimeinplayingcomputergamesorchatting(聊天聊天)online.Weshouldlearnmorecomputerskillswhichareveryusefulinourfuturework.Summaryaboutthetext.Thecomputer_acalculatingmachinein1642,thenin1822,itwasbuiltasan_by_.Attheyearof1936,AlanTuring_todescribehowcomputers_towork,andbuilda“universalmachine”tosolve_.Withthedevelopmentof_beganasAnalyticalMachineCharlesBabbagewroteabookcouldbemademathematicalprobleminformationtechnologyinthe1960s,computershadnew_andbecame_,thenwereconnectedtoeachotherby_.Astheyearshad_,computerswere_,peopleshomes.Nowcomputershavebecomethemostimportant_to_allovertheworldtogether.transistorssmallerandsmalleranetworkgonebybroughtin
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