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,*,Unit 3 Computers,period 1 warming up,and listening,A toy?,A handbag?,Computers,Riddles(,谜语,):,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,):,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,):,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.,notebook computer,Do you know who I am?,Riddles(,谜语,):,A huge computer,A PC,the history of the computer,Palmtop,How much do you know,about a computer?,Give the English name of the,following pictures of the,computer components(,组件,),What is it in English?,Main board(,主板,),What is it in English?,CPU(central processing Unit),中央处理器,What is it in English?,hard disc,What is it in English?,Keyboard(,键盘,),What is it in English?,monitor,screen,What is it in English?,mouse,鼠标,DVD ROM,monitor,screen,mouse,keyboard,hard disk,DVD-ROM,(1)the part of the computer that looks like a television.,(2)the part of the monitor that you look at.,(3)something you use to,click,on things(files,etc.),(4)the part of the computer that you type on.,(5)the part of a computer that,stores,information.,(6)The part of computer that we can put a CD in,.,Work out the names,1.Besides,computer,what,else,can we get information from?,Pre-listening:,Information Technology,2.Which is more useful,a TV or a radio?why?,3.What can we do with a computer?,Computer and Internet,type my homework,draw pictures,play games,communicate with my friends.,gather information for my lessons,listen to music,watch movies,Listen to the tape and answer the following questions.,1.What kinds of IT are,mentioned,in the passage?,Computers,books,radios and TVs.,2.Which kind of IT is the best one.,Computer,Listen to the tape again and fill in the chart:,Type of IT,Advantages,Disadvantages,Book,Radio,TV,Web,You can both listen and_.,You cant write to friends.,Watch a _,write to _,and _ what is going on in the world.,Very_ and too big to _ everywhere.,The information is sometimes not _.,listen to _.,You cant watch a film.,A _ way to get _,cheap and _ to take.,Sometimes it is_,out,of,date,.,English,watch,film,find,out,friends,wonderful,information,easy,carry,correct,expensive,Post-listening:,Do you think the computer really helps to your study?Why?,I think that,In my opinion,I believe that,I agree because,I disagree because,Giving an opinion:,Make good use of it but never get trapped by it.,words and expression,Mathematical,Calculator(n.),IT,PC,In my opinion,Vt.,Calculate,Information Technology,Personal,Computer,TIPS,Some words on the Internet:,netizen,网民,Net surf,网络漫游,computer virus,计算机病毒,cyber,计算机的，网络的,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,backer,黑客,chat room,聊天室,click,点击,Homework,1.,预习,unit3,的,reading,部分,(,写在预习本上,),2.,书,P56,的,EX1,和,P57,的,EX2(,上,),3.,阅读导与测,p18,4.,复习第一二单元,.,Computers can be used as.,typewriter,projector,video game player,drawing board,USeful expressions,I think that,In my opinion,I believe that,I agree because,I disagree because,Giving an opinion,Reasoning,Discussion:,Is it very important to learn computer skills for us?Why or why not?,Discussion,Is it very important to learn computer skills for us?Why or why not?,Use the following expression in your discussion.,I think that,In my opinion,I believe that,Whats your reason?,Why do you think so?,You are given a chance to design a computer for yourself.,Draw a picture about it and,describe(,描述,),what functions it has.,You will be asked to,introduce(,介绍,),your computer.(,appearance,&functions),Group work,