人教新课标必修二 Unit 3 Computers.ppt

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1、WelcomeUnit3Computer课时分配课时板块Period1WarmingupandReadingIPeriod2ReadingPeriod4ReadingIIPeriod5GrammarPeriod6ExercisesWarmingupThedevelopmentofcomputerP17Lookatthepictures.Talkabouteachofthem.Discusswhattheyhaveincommon.AnabacusAcalculatorAPC(=personalcomputer)Anotebookcomputer/lap

2、topAhugecomputerAnabacusisanoldcalculatingmachineusedinChinauntilnow.Ahugecomputerisbuilttosolvesomemathematicalproblems.Butitistoobig.Acalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.APCisapersonalcomputerwhichcansolveallkindsofproblemsandiswid

3、elyusednow.Anotebookcomputerisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.Youareaskedtousethefollowingexpressioninyourdiscussion.Ithinkthat…Inmyopinion…Ibelievethat…Whydoyouthinkso?What’syourreason?DiscussionIthinktheyallcancalculatesomething.Itcandealwithsomem

4、athsproblem.Ibelievethattheyareourgoodfriends.Inoureverydaylife.wecannotfinishourworkquicklywithoutthem.Inmyopinion,peopleimproveabacus,makeitmoreusefulandmakeitacomputer.Theyarebeingusedwidelyandconvenientlyintheworld.Softdisc(floppydisc)CD-ROMprinterscannermp3USBSomeInformatio

5、naboutthecomputersandtheinternetHardwareSoftwareHostOutputProgramsMemoryDrivesDesk-topcomputerBusinesscomputerDigitalmovie硬件软件主机输出程序内存储器驱动器台式计算机商务计算机数字影像Chatrooms,netbar,chatbarOn-linefriendsBeon-line,ontheinternetDown-loadfilesSendandreceivee-mailWebfansInternetsitesE-mailboxEl

6、ectronicmailLocalAreaNetworkLoginLogoutnetizen网吧网友上网，在线下载文件收发邮件网迷网址电子邮件电子邮件箱局域网登陆注销网民FloppydiscchipsmonitormodemCD-ROMscannerKey-boardprinterUsingwordsandexpressionsFillintheblankswiththeproperwordsintheboxCompletethesentenceswithsomeofthewordsinthebox.Monitor,mouse,keyboard,har

7、ddisc,floppydisc,CD-ROM,printer,modem,A_________isusedtoseeyourdataonacomputer.A__________ordiskisthemaindevicethatacomputerusestostoreinformation.A_________isamachineforprintingtextorpicturesontopaper,especiallyoneconnectedtothecomputer.A_________isusedtoputdataintoacomputer.A_

8、________isoftenusedtoconnectcomputerstoeachothe