人教版高中英语必修二Unit-3-computers-reading-公开课1ppt课件

.,ByJen,Unit3Computers,.,LookatthefollowingpicturesandtelltheirEnglishnames.,abacus,calculator,.,hugecomputer,PCpersonalcomputer,.,laptop,PDAPersonalDigitalAssistant,.,robot,.,Canyoutellthedevelopmentofcomputers?,abacus,calculator,hugecomputer,PC,laptop,PDA,robot,.,Doyouknowinwhatwayscomputersareusedtoday?Discussitwithyourdeskmate.(2min),.,searchforinformation,watchmovies,.,listentomusic,readbooksandmagazines,.,buythingsonline,playgamesonthecomputer,.,Reading,WhoamI?,.,Canyoufindoutthetopicsentenceofeachparagraph?,.,ParaI:,ParaII:,ParaIII:,WhoamI?,OvertimeIhavebeenchangedquitealot.,Thesechangesonlybecamepossibleasmymemoryimproved.,Sincethe1970smanynewapplicationshavebeenfoundoutforme.,Skimthepassageandfindoutthetopicsentenceineachparagraph.(2min),.,Canyoufindoutthemainideaofthispassage?,A.Thedevelopmentofcomputers.B.Amachinewhichissimple-minded.C.Thedevelopmentandtheapplicationsofcomputers.D.Computersmayreplacehumanbeings.,.,Readpara1andfillinthechart.(2mins),Carefulreading,calculating,Simplify,1822,logically,universal,Reality,Sincethe1970s,Usedinofficesandhomes,.,Myshapedidntchangeeventhoughmymemoryimproved.TheolderIam,thelargerIhavebecome.OvertimeIhavelargememorysothatIwillnotforgetanythingIhavebeentold.IwasabletosharemyknowledgewithothersthroughtheWorldWideWebintheearly1960s.,F,F,T,T,Theinformationwasstoredintubes,thenontransistorsandlateronthechips.,AsIhavegrownolderIhavealsogrownsmaller.,Readpara2andthentellthestatementtrueorfalse.(1min),1,2,Whatrolesdocomputersplayinthelifeofhumanbeings?,Whatarethenewapplicationsofthecomputer?,ReadPara3andthenanswerthefollowingquestions.(1min),Whatarethenewapplicationsofthecomputer?,Communication,finance,mobilephones,Trade,medicaloperation,spacerockets,robots,Whatrolesdocomputersplayinthelifeofhumanbeings?,Theyprovidehumanswithalifeofhighquality.,Theyaredevotedfriendsandhelpersofthehumanrace.,Timeline:Findoutthedevelopmentofcomputersinthefollowingyears.(1min),Thecomputerbeganasacalculatingmachine,Thecomputergrewrapidlybothinsizeandinbrainpower.,Thecomputerhadgrownaslargeasaroom.,Computerswereusedinofficesandhomes.,Computerisadevotedfriendandhelperofthehumanrace.,.,Discussion,Inwhatwayscomputerscanbeusedtodoforhumanraceinthefuture?,Forexample:A:Whatwillcomputersbedevelopedinthefuture?B:Ithinkcomputerswillbedevelopedtohelpus/Inmyopinion,computerscanbeusedto,.,carrythings,.,drone,workinwars,.,dospaceresearch