高中英语Unit3computers新人教版必修2省名师优质课赛课获奖课件市赛课一等奖课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。感谢,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。感谢,Unit 3 Computers,period 1 warming up,1/20,A toy?,A handbag?,Computers,Riddles(,谜语,):,2/20,I am very old now.I was born in China.Many people used me for,calculating,in the past,but now I am a bit lonely because they dont like me now.,Do you know who I am?,abacus,Riddles(,谜语,):,3/20,I am very small.I can be used for,calculating,.In China,a lot of students use me when solving,mathematical,problems.,Do you know who I am?,calculator,Riddles(,谜语,):,4/20,I can be used for calculating.Besides,I can also be used for watching DVD,sending e-mail and communicating through the Internet.However,I am not a PC,because Im small enough for you to take me with you.,laptop,Do you know who I am?,Riddles(,谜语,):,5/20,abacus,huge computer,PC,calculator,laptop,PDA,Whats next?,What do they tell you about the development of computers?,robot,6/20,How much do you know,about a computer?,Give the English name of the,following pictures of the,computer components(,组件,),7/20,What is it in English?,Main board(,主板,),8/20,What is it in English?,CPU(central processing Unit),中央处理器,9/20,What is it in English?,hard disc,10/20,What is it in English?,keyboard(,键盘,),11/20,What is it in English?,monitor,screen,12/20,What is it in English?,mouse,鼠标,13/20,DVD ROM,14/20,TIPS,Some words on the Internet:,netizen,网民,Net surf,网络漫游,computer virus,计算机病毒,cyber,计算机，网络,browse,浏览,cyberspace,网络空间,scroll,滚动显屏,access charge,接入费,cursor,光标,BBS,公告板服务,hacker,黑客,chat room,聊天室,click,点击,cyber bar,网吧,15/20,Computers can be used as.,typewriter,projector,video game player,drawing board,16/20,Conclusion,There is no doubt that computer has two sides,too.If we make good use of it,it will make our lives more colorful and convenient.But dont lose yourself in playing computers.Just remember:Keep fit,study well and work hard.,17/20,1642:The computer began as a calculating machine.,1822:The analytical machine was made by Charles Babbage.,1936:The computer grew rapidly both in size and in brainpower.,1940s:The computer had grown as large as a room.,18/20,1960s:The first family of computers was connected to each other.,1970s:Computers were used in offices and homes.,now:Computers connect people all over the world.,19/20,Paragraph1,Paragraph2,Paragraph3,Topic sentence,Support-,ing details,calculating machine,tubes,communications,finance,analytical machine,universal machine,PC,laptop,transistors,chips,network,World Wide Web,trade,robots,mobile phones,medical operations,space robots,Over time I have been changed quite a lot.,These changes only as my memory improved.,Since the 1970s many new applications,for me.,Complete the chart below,2,20/20,