人教版高中英语必修二Unit-3-computers-reading-公开课课件

ByJenUnit3ComputersLookatthefollowingpicturesandtelltheirEnglishnames.abacuscalculatorhugecomputerPCpersonalcomputerlaptopPDAPersonalDigitalAssistantrobotCanyoutellthedevelopmentofcomputers?abacuscalculatorhugecomputerPClaptopPDArobotDoyouknowinwhatwayscomputersareusedtoday?Discussitwithyourdeskmate.(2min)searchforinformationwatchmovieslistentomusicreadbooksandmagazinesbuythingsonlineplaygamesonthecomputerReadingWhoamI?Canyoufindoutthetopicsentenceofeachparagraph?ParaI:ParaII:ParaIII:WhoamI?OvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundoutforme.Skimthepassageandfindoutthetopicsentenceineachparagraph.(2min)Canyoufindoutthemainideaofthispassage?A.Thedevelopmentofcomputers.B.Amachinewhichissimple-minded.C.Thedevelopmentandtheapplicationsofcomputers.D.Computersmayreplacehumanbeings.Readpara1andfillinthechart.(2mins)TimeMachineApplicationsIn1642A__________machine________difficultsumsAboutin_____AnanalyticalmachineThink_________In1936A________machineSolveanydifficultproblemBythe1940sAlargermachine______worriedthedesigners____________Personalcomputer/Laptop______________________________calculatingSimplify1822logicallyuniversalRealitySincethe1970sUsedinofficesandhomes1.Myshapedidn’tchangeeventhoughmymemoryimproved.2.TheolderIam,thelargerIhavebecome.3.OvertimeIhavelargememorysothatIwillnotforgetanythingIhavebeentold.4.IwasabletosharemyknowledgewithothersthroughtheWorldWideWebintheearly1960s.FFTTTheinformationwasstoredintubes,thenontransistorsandlateronthechips.AsIhavegrownolderIhavealsogrownsmaller.Readpara2andthentellthestatementtrueorfalse.(1min)12Whatrolesdocomputersplayinthelifeofhumanbeings?Whatarethenewapplicationsofthecomputer?ReadPara3andthenanswerthefollowingquestions.(1min)Whatarethenewapplicationsofthecomputer?CommunicationfinancemobilephonesTrademedicaloperationspacerocketsrobotsWhatrolesdocomputersplayinthelifeofhumanbeings?Theyprovidehumanswithalifeofhighquality.Theyaredevotedfriendsandhelpersofthehumanrace.16421822TheanalyticalmachinewasmadebyCharlesBabbage.19361940s1960sThefirstfamilyofcomputerswasconnectedtoeachother.1970sNowTimeline:Findoutthedevelopmentofcomputersinthefollowingyears.(1min)Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.Computerswereusedinofficesandhomes.Computerisadevotedfriendandhelperofthehumanrace.DiscussionInwhatwayscomputerscanbeusedtodoforhumanraceinthefuture?Forexample:A:Whatwillcomputersbedevelopedinthefuture?B:Ithinkcomputerswillbedevelopedtohelpus…/Inmyopinion,computerscanbeusedto…carrythingsdroneworkinwarsdospaceresearchHomework1.Finishexercise1onpage202.Findoutsomesentencesofthepassageyoudon’tunderstand.Wewilldiscussitinnextclass.Thankyou!