八年级英语下册 Unit 3 Online tours Welcome to the Unit课件 （新版）牛津版.ppt

Unit3OnlineToursPeriod1Welcometotheunit,computers,Freetalk,Doyouhaveacomputerathome?,Whatcanyoudowiththecomputer?,Howmanypartsarethereinacomputer?Whatiseachpartcalled?,Doesithavemoreuses(用途)?Whatcanweuseitfor?,screen,mainunit,keyboard,mouse,mice,CD-ROMdrive光驱,printer,modem调制解调器,USBdrive,speaker,mdem,menu（菜单）,program(程序),icons(图标),Fillintheblanks.A_isusedfortypinginformationintocomputer.2.A_isusedformovingthecursor(光标)onthescreen.3.A_isusedforputtingthewordsandpicturesontopaper.,keyboard,mouse,printer,4.Programmers(程序员)design_tocontrolcomputers.5.Wecanseewordsandpicturesonthe_.6._showsalistofinformationandletsyouchoosewhattodo.,programs,screen,Menu,A:Whatsthis?B:Itsakeyboard.A:Whatcanweuseitfor?B:Wecanuseitfortyping.,keyboard,(type),screen,(seewordsandpictures),mouse,(clickoniconsformoredetails),printer,(printwordsandpicturesout),Practice:Differentusesofcomputers,drawanddesign,searchforinformation,dowordprocessing,playgames,writecomputerprograms,sendandreceivee-mails,chatwithfriends,watchvideos/TVprogrammes,Listenandanswer.,WhatdoesSimonusuallyusehiscomputerfor?Why?,Heusuallyusesittosearchforinformation.,Becauseitsfastandeasy.,DOPAIR-WORK,Workinpairs.UseDanielandSimonsconversationasamodel.,Itstimeforyourturn!,Pairwork:A:Whatdoyouuseyourcomputertodo/for?B:Iusuallyuseitto/for.A:Why?B:A:Howoften?B:.,.(interesting/fast/easy/funny/safe/cheap),DoEddieandHoboknowwellaboutcomputers?,Listen,readandanswer:,HaveHoboandEddieeverseenacomputer？,No,theyhavent.,2.WhatdoEddieandHobothinkthecomputerlookslike?,TheythinkitlookslikeaTV.,3.Doyouknowwhattheremotecontrolreallyis?,Itisamouse.,Fillintheblanks,EddieandHoboknow1.(everything,nothing)aboutcomputers.Hobothinksthe,computerlookslikea2.Eddieagrees,withHoboandhethinksthemouseisthe,3.rc.Theywanttousethe,mouseto4.thechannelbecausethe,programmebegananhour5.a.,nothing,TV,emote,ontrol,change,go,Weshouldmakegooduseof(合理利用)computers.Donotspendtoomuchtimeoncomputers,especiallytheonlinegames!,Itsharmfultooureyes,health,study.Itcoststoomuchmoney.,Discussion,WritingWriteaboutadvantagesanddis