高中英语人教版必修二unit3Reading

Guess!Atoy?Ahandbag?keyboardmousemonitorscreenspeakerhostcomputerWhatEnglishwordsdoyouknowaboutcomputers?①②③④⑤⑥Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusGuessmore:Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputer/laptopDoyouknowwhoIam?AhugecomputerPCPDAcalculatorabacuslaptopWriteoutallthewordsyouknowaboutcomputers.computerclickupdateInternetkeyboardWhoamI?Skimming:Gooverthestorytofindoutwhothespeakeris.Writedown3sentencestosupportyouridea.Itisacomputer.●IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb.●”MyrealfatherwasAlanTuring....”●IwasbuiltasanAnalyticalMachinebyCharlesBabbage.”TimelineThecomputerbeganasacalculatingmachineThecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.1960sComputerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.1642:_______________________________________________1822:TheAnalyticalMachinewasmadebyCharlesBabbage.1936:______________________________________________________________________________________1940s:______________________________________________:Thefirstfamilyofcomputerswasconnectedtoeachother.1970s:_________________________________________Now:____________________________________________________________________________________ScanningParagraph1Paragraph2Paragraph3TopicsentenceSupportingdetailsOvertimeIhavebeenchangedquitealot.•Calculatingmachine•Analyticalmachine•Universalmachine•PC•laptopThesechangesonlybecamepossibleasmymemoryimproved•Tubes•Transistors•Chips•Network•WorldwidewebSincethe1970smanynewapplicationshavebeenfoundforme.•Communications•Finance•Trade•Robots•Mobilephones•Medicaloperations•Spacerockets•ProvidingalifeofhighqualityIn1642Thecomputerbeganasa(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Scienceandtechnology.6.人工智能Artificialintelligence.7.笔记本电脑Notebookcomputer.8.Whowasthecomputers’realfather?AlanTuring.Whataretheadvantagesanddisadvantagesofthecomputers?Inmyopinion,Icanusethecomputerto….DiscussionWecanusethecomputerto…….listentomusicWatchmoviessearchfor…communicatewith…doshoppingAdvantagesWecanusethecompuersto…1.useacomputerforschoolwork2.playgamesonthecomputer3.sendemailstofriends4.downloadmusicandfilms5.goshoppingonline6.useQQtomakefriends7.communicatewithothers8.usetheInternettosearchforinformation9.surfthewebforfun10.readnewsbothathomeandabroad,readbooksandmagazinesDisadvantages1.Somestudentsmaygettooaddicted(沉溺于)toit.2.Somestudentswastetoomuchtimeinplayingcomputergames.3.Somestudentsspendtoomuchtimeinchattingwithothersandmaybecheated(欺骗)bysomeoneonline.4.Asaresult,theyhavelittletimetostudy5.Itisbadforoureyesandhealthtospendlongtimeinfrontofcomputers.Howusefulcomputersare!DoourschoolworkPlaycomputergamesSendemailsSeemoviesChatwithfriendsGetusefulinformationShoppingonlineListentomusicInternetComputershavegreatpower.Theymakeourlivesmorecolorfulandmoreconvenient.BUTDon’tjustusecomputersforfun.Don’tspendtoomuchtimeinplayingcomputergamesorchatting(聊天)online.Weshouldlearnmorecomputerskillswhichareveryusefulinourfuturework.Summaryaboutthetext.Thecomputer__________acalculatingmachinein1642,thenin1822,itwasbuiltasan___________by________________.Attheyearof1936,AlanTuring____________todescribehowcomputers_____________towork,andbuilda“universalmachine”tosolve_________________.Withthedevelopmentof__________________beganasAnalyticalMachineCharlesBabbagewroteabookcouldbemademathematicalprobleminformationtechnologyinthe1960s,computershadnew__________andbecame_______________,thenwereconnectedtoeachotherby_________.Astheyearshad__________,computerswere___________,people’shomes.Nowcomputershavebecomethemostimportant_________to_____________allovertheworldtogether.transistorssmallerandsmalleranetworkgonebybroughtintotoolsconnectpeople1642began…calculating…France1822built…ananalyticalmachine…CharlesBabbage1936AlanTuring…wrote…made…1940sAslarge