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

LookatthefollowingpicturesandtelltheirEnglishnames.

abacuscalculator第一页第二页，共26页。hugecomputerPCpersonalcomputer第二页第三页，共26页。laptopPDAPersonalDigitalAssistant第三页第四页，共26页。robot第四页第五页，共26页。Canyoutellthedevelopmentofcomputers?abacuscalculatorhugecomputerPClaptopPDArobot第五页第六页，共26页。Doyouknowinwhatwayscomputersareusedtoday?

Discussitwithyour

deskmate.(2min)第六页第七页，共26页。searchforinformationwatchmovies第七页第八页，共26页。listentomusicreadbooksandmagazines第八页第九页，共26页。buythingsonlineplaygamesonthecomputer第九页第十页，共26页。Reading

WhoamI?第十页第十一页，共26页。Canyoufindoutthetopicsentenceofeachparagraph?第十一页第十二页，共26页。ParaI:ParaII:ParaIII:

WhoamI?OvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundoutforme.Skimthepassageandfindoutthetopicsentenceineachparagraph.(2min)第十二页第十三页，共26页。Canyoufindoutthe

mainideaofthispassage?A.Thedevelopmentofcomputers.B.Amachinewhichissimple-minded.C.Thedevelopmentandtheapplicationsofcomputers.D.Computersmayreplacehumanbeings.第十三页第十四页，共26页。Readpara1andfillinthechart.

(2mins)CarefulreadingTimeMachineApplicationsIn1642A__________machine________difficultsumsAboutin_____AnanalyticalmachineThink_________In1936A________machineSolveanydifficultproblemBythe1940sAlargermachine______worriedthedesigners____________Personalcomputer/Laptop______________________________calculatingSimplify1822logicallyuniversalRealitySincethe1970sUsedinofficesandhomes第十四页第十五页，共26页。Myshapedidn’tchangeeventhoughmymemoryimproved.TheolderIam,thelargerIhavebecome.OvertimeIhavelargememorysothatIwillnotforgetanythingIhavebeentold.IwasabletosharemyknowledgewithothersthroughtheWorldWideWebintheearly1960s.FFTTTheinformationwasstoredintubes,thenontransistorsandlateronthechips.AsIhavegrownolderIhavealsogrownsmaller.Readpara2andthentellthestatementtrueorfalse.(1min)第十五页第十六页，共26页。12Whatrolesdocomputersplayinthelifeofhumanbeings?Whatarethenewapplicationsofthecomputer?ReadPara3andthenanswer

thefollowingquestions.(1min)第十六页第十七页，共26页。Whatarethenewapplicationsofthecomputer?CommunicationfinancemobilephonesTrademedicaloperation

spacerocketsrobots第十七页第十八页，共26页。Whatrolesdocomputersplayinthelifeofhumanbeings?Theyprovidehumanswithalifeofhighquality.Theyaredevotedfriendsandhelpersofthehumanrace.第十八页第十九页，共26页。16421822TheanalyticalmachinewasmadebyCharlesBabbage.19361940s1960sThefirstfamilyofcomputerswasconnectedtoeachother.1970sNowTimeline:

Findoutthedevelopmentofcomputersinthefollowingyears.(1min)

Thecomputerbeganasacalculatingmachine．Thecomputergrewrapidlybothinsizeandinbrainpower.Thecomputerhadgrownaslargeasaroom.Computerswereusedinofficesandhomes.Computerisadevotedfriendandhelperofthehumanrace.第十九页第二十页，共26页。Discussion

Inwhatwayscomputerscanbeusedtodoforhumanraceinthefuture?

Forexample:A:Whatwillcomputersbedevelopedinthefuture?B:Ithinkcomputerswillbedevelopedtohelpus…/Inmyopinion,computerscanbeusedto…第二十页第二十一页，共26页。carrythings第二十一页第二十二页，共26页。droneworkinwars第二十二页第二十三页，共26页。dospaceresea