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1、,Unit 3 Computers Period 1 Warming up,Heavy! Difficult! Hard! Tired!,keyboard,mouse,monitor,screen,speaker,host computer,camera,What do they have in common?,an abacus,a calculator,a desktop,a notebook computer a laptop,digital camera,a robot,work for us in Mars(火星),Whats next?,carry things,work in w
2、ars (战斗),仿真机器人,entertainment 娱乐,What do you think will be the next development?,CD - DVD-ROM -DVD RW,CRT monitor,LCD monitor,CPU,hard disc硬盘,chips芯片 /motherboard母版,some hardware硬件:,使用阴极射线管(Cathode Ray Tube)的显示器,LiquidCrystalDisplay,keyboard,mouse,Modem调制解调器,Scanner扫描仪,printer,speaker,floppy disc/dis
3、k磁盘,USB flash disc,CD/VCD/DVD,MP3 player,MP4 player,Memory:(存储器),移动硬盘,USB Flash disc,1 TB 固态硬盘,T 硬盘,Hard disc:,Core 2 Duo,酷睿2 : 4核,龙芯8核,cpu:,other useful words and expressions about computer:,Network网络 Virus病毒 Download 下载 Up load 上传 Program程序 Website站点 Hacker 黑客,Home page 主页 Password密码 Desk top 桌面 U
4、ser name 用户名 Click 点击 Software 软件 Hardware 硬件,Home page 主页,Reading: Who am I?,Skimming: Read and answer these questions:,2. Who was the first person to invent the earliest computer? 3. Who was the next important person to design computers?,Charles Babbage,Alan Turing,1. Who am I?,A computer.,timelin
5、e,1642: 1822: 1936: 1940s: 1960s: 1970s: Now:,Scanning:,The computer began as a calculating machine.,the Analytical Machine was built by Charles Babbage.,The computer grew rapidly both in size and in brainpower.,Computer had grown as large as a room.,Computers were used in officers and homes.,Comput
6、ers connect people all over the world together.,the first family of computers was connected to each other,The history of computers,the second generation (1956-1963),the third generation (1964-1971),the fourth generation (1971- ),The first generation (1945-1956),The development of computers:,Calculat
7、ing machine,Analytical machine,Universal machine,Artificial intelligence,Computer,Internet,计算器,分析机,万能机,通用机器,人工智能,calculating,analytical,universal,mathematical problems,Medical operations,Memory,Transistors,Applications,Communication,Trade,Intensive reading: Underline the phrases &sentences that you
8、think are important,Star sentences:,P1 L2 I _instructions from cards with holes. P1 5 Earlier I was not very big, but then I became _ . P1 L6 However, people thought I was _ until they _ I had “artificial intelligence.”,我执行穿孔卡的指令,早些时候我并不是很大，但是后来我变得非常大,可是，人们认为我头脑简单， 直到发现我有人工智能时， 他们才不那么想了。,followed,hu
9、ge,simple-minded,discovered,P1 L8 As the years have _, I have been made smaller and smaller. P2 L1 There were _ when my size was _changed. P2 L3 But I was always so lonely _ there by myself, until in the early 1960s,they gave me a family _ by a network.,随着岁月的流逝， 我被做得越来越小了.,有段时期我的体积完全变了,但是我总是孤孤单单地站在那
10、里，直到60年代初， 人们才 给了我一个用网络连接的家庭。,gone by,times,totally,standing,connected,Advantages and disadvantages of the computers.,Discussion,advantages we can communicate with friends listen to the music see films & watch news play games do shopping save a lot of time do a lot of useful things,Disadvantages Some people especially the teenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study . Some people use the computer wrongly.,Homework,Review the text Recite Para one Finish Ex. 1/2 on Page 20.,
