剑桥国际英语教程2册Unit.ppt

Unit7,Whatsthisfor?,Brainstormmachinesandmoderninventions,Telephone,cellphone,creditcards,TV,CDs,laptop,computer,videogames.,Match,CellphonePocketcalculatorMicrowaveovenWorldwidewebTelephoneansweringmachine,19451949197019791989,Whatdoyouuseyourcomputerfor?,PlaygamesBuythingsDoresearch,Infinitivesandgerundsforusesandpurposes,Infinitives:To+verb(do)例:Iusemycomputertosende-mails.我用电脑来玩游戏Iusemycomputertoplaygames.,Gerunds:For+V-ING(doing)例:Iusemycomputerforsendinge-mails.我用电脑来玩游戏Iusemycomputerforplayinggames.,注：语法部分第二句为被动语态，会在unit11学习到,ComputersareoftenusedtopaybillsComputersareoftenusedforpayingbillsBeusedfor/to被用来做某事,Exercise,SatelliteRobotDNAfingerprintingCD-ROMTransmitTextmessageCriminal,卫星机器人DNA指纹图谱/分析只读光盘驱动器传输短信犯罪,Wordpower,DiscdriveGeek,technophileHackerMonitorMouseSurfthenetHardware,光盘驱动技术宅黑客显示器鼠标上网硬件,Wordpower,Listening,Forty-twopercentofthepopulationneverusestheInternet.Olderpeople,peoplelivinginruralareas,thosewhoareworriedaboutprivacy,orwhothinktheInternetisntnecessaryintheirlifedontusetheInternet.,Listening,Arepeoplewhoaskotherstosende-mailsorbrowseWebsitesforthem.ArepeoplewhoonceusedtheInternet,butdontanymore.PeoplemaybecomeInternetdropoutsbecausetheydonthaveacomputeranymore,donthaveenoughtime,orarentinterested,Conversation,Whoownsthecellphone?Whoaretheycalling?Whatsthefirstthingtodo?Whatshouldthewomanpress?,ConversationCanIborrowyourphone?,Jenny:CanIborrowyourphonetocallmyboss?Richard:Icantyoustilldonthaveacellphone.Hereyougo.Jenny:Thanks.Now,whatdoIneedtodo?Richard:Firstofall,besuretoturniton.Anddontforgettodialtheareacode.Jenny:OK,Icanseethenumber,butIcanthearanything.Richard:Thatsbecauseyouhaventpressedthecallbutton.Jenny:Oh,good.Itsringing.Richard:Trynottogettooexcited.Youllprobablygethisvoicemail.Jenny:Youreright.Itsarecording.Richard:Makesuretohittheendbuttonorelseyoullleaveourconversationonhisvoicemail!,Imperativesandin