1、,Warming up,Unit3 Computers Warming up Speaking &Writing,Follow me:,Your gift: laptop (筆記本墊/電腦),Whats next?,What do they have in common?,What is a computer,A tool or a machine Need electricity Be used to deal with datas ,Computers are machines that can be used for performing calculations automatical

2、ly. They can perform complex and repetitive procedures quickly, precisely and reliably and can quickly store large amounts of data.,CD / DVD-ROM,CRT monitor,LCD monitor,CPU,hard disc/disk,chips/motherboard,keyboard,mouse,modem,floppy disc,USB flash disc,1,2,4,3,5,6,1. monitor 2. screen 3. CD-ROM 4.

3、mouse 5. keyboard 6. hard disk,Label each part,1 A monitor is 2 The screen is 3 A keyboard is 4 A mouse is 5 A CD-ROM is 6 A hard disk is,(a) the part of a computer that stores information. (b) the part of the computer that you type on. (c) the part of the computer that looks like a television (d) s

4、omething you use to click on things (files, etc.). (e) the part of the monitor that you look at. (f) The main device that a computer uses to store information.,Match the words with their meanings.,other useful words and expressions about computer,Network 網(wǎng)絡(luò) Website站點(diǎn) Program程序 Virus病毒 Hacker 黑客 Down

5、load 下載 Software 軟件 Hardware 硬件,Up load 上傳 Home page 主頁(yè) Password密碼 Desk top 桌面 User name 用戶(hù)名,What can we do with computer/internet?,Internet,Ask and answer questions in groups.,How do you use computers and the Internet?,B/H,B,H,?,Why?,We can not only teach ourselves better but improve our learning e

6、fficiency.,Some students think of it a way of relaxing,even some of them consider playing computer games can raise their speed of thoughts.But if we cannot control ourselves properly, we will be lost in it, which can bring us much suffering.,be lost in/be addicted to（對(duì)上癮）,For us students, is compute

7、r more beneficial or more harmful?Computer, Friend or Enemy,Para1:Brief introduction of Internet and peoples daily life. (Nowadays, Internet is around every corner of our daily life./The past few years has seen the fast development of Internet which has influenced our daily life ),Para2: Some people consider it as a friend, why? Para3: Other people treat it as an enemy, why? Para4: What is your opinion? What attitude should we have tow