剑桥国际英语教程2册Unit.ppt
Unit 7,Whats this for?,Brainstorm machines and modern inventions,Telephone,cell phone,credit cards,TV,CDs,laptop,computer,video games.,Match,Cell phonePocket calculatorMicrowave ovenWorld wide webTelephone answering machine,19451949197019791989,What do you use your computer for?,Play gamesBuy thingsDo research,Infinitives and gerunds for uses and purposes,Infinitives:To+verb(do)例:I use my computer to send e-mails.我用电脑来玩游戏I use my computer to play games.,Gerunds:For+V-ING(doing)例:I use my computer for sending e-mails.我用电脑来玩游戏I use my computer for playing games.,注：语法部分第二句为被动语态，会在unit11学习到,Computers are often used to pay billsComputers are often used for paying billsBe used for/to 被用来做某事,Exercise,SatelliteRobotDNA fingerprintingCD-ROMTransmitText messageCriminal,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,Word power,Disc driveGeek,technophileHackerMonitorMouseSurf the netHardware,光盘驱动技术宅黑客显示器鼠标上网硬件,Word power,Listening,Forty-two percent of the population never uses the Internet.Older people,people living in rural areas,those who are worried about privacy,or who think the Internet isnt necessary in their life dont use the Internet.,Listening,Are people who ask others to send e-mails or browse Web sites for them.Are people who once used the Internet,but dont anymore.People may become Internet dropouts because they dont have a computer anymore,dont have enough time,or arent interested,Conversation,Who owns the cell phone?Who are they calling?Whats the first thing to do?What should the woman press?,ConversationCan I borrow your phone?,Jenny:Can I borrow your phone to call my boss?Richard:I cant you still dont have a cell phone.Here you go.Jenny:Thanks.Now,what do I need to do?Richard:First of all,be sure to turn it on.And dont forget to dial the area code.Jenny:OK,I can see the number,but I cant hear anything.Richard:Thats because you havent pressed the call button.Jenny:Oh,good.Its ringing.Richard:Try not to get too excited.Youll probably get his voice mail.Jenny:Youre right.Its a recording.Richard:Make sure to hit the end button or else youll leave our conversation on his voice mail!,Imperatives and infinitives for giving suggestions,Be sure to确定Dont forget to别忘了Try to尝试Try not to试着别Make sure to确保,Verb.(动词原形),
