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1、.,1,Unit 3 The world online,.,2,Do you know in what way we can keep in touch with each other?,Brainstorming,.,3,postcards,.,4,letters,.,5,Telephones and mobile phones,.,6,telegraphs,faxes,.,7,computers,.,8,Before the invention of the internet, people used letters, postcards, telegraphs faxes, and te
2、lephone calls to communicate. Some of these ways are still used today, but more and more people now are using computers and the internet for communication.,.,9,Discussion,Which one do you prefer to use to keep in touch with your friends? Why?,postcard,telephone,computer,letter,.,10,What is the Inter
3、net?,The Internet , also called the Net, is a collection of computers connected in a worldwide network.,.,11,What do we use the Internet for?,.,12,.,13,Some famous search engines,This is a program that lets you search a website or the whole Internet to find information.,.,14,Search for information o
4、n the Internet,To search for certain information on the Internet, first of all, you must have access to the Internet and your computer must have certain program for browsing the websites. And we call these programs browsers.,.,15,A picture of a web page,Back arrow,Refresh,Home page,Web address,Link,
5、Minimize / Maximize / Close,.,16,What do you think the most important benefit of the Internet is? Do you think there are any negative things about the Internet?,Discussion,.,17,Shop for the top brands at the best prices all over the world,.,18,Make a comparison,Cheaper. Easy and convenient to compar
6、e a product with other online shops. Pay by credit card.,Not reliable. Doubtful safety of payment. Some ads lie.,Somewhat expensive. You have to walk to other stores to compare the same product.,You can examine the product. 100% safety of payment. The salesmen can not easily cheat you.,.,19,.,20,.,2
7、1,.,22,.,23,browse search download upload refresh back arrow minimize maximize close,浏览,搜查查找,下载,上传,刷新,后退键,最小化,最大化,关闭,click,点击,Word power,.,24,search engine web address home page www,搜索引擎,网址,主页,万维网,互联网,website webpage link virus hacker,网站,网页,链接,病毒,黑客,.,25,How many words can you think of related to th
8、e computer?,keyboard , monitor, hard drive , printer, screen, speaker, program, cursor, mouse mat, hard disk drive,.,26,1. You see a set of keys for typing.,keyboard,2. You use it to store information. It can store more information than a floppy disk.,hard disk,3. You see words and pictures on it.,s
9、creen,Guessing game,.,27,4. It is a machine that puts words and pictures onto paper.,printer,5. It is a small device moved by hand. It controls the cursor on the screen.,mouse,6. It is a part of the computer where the sound comes out.,speaker,Guessing game,.,28,7. These are sets of instructions that
10、 control your computer.,program,8. It is a short, movable line on the screen.,cursor,9. It is a small square of plastic on which a computer mouse moves.,mouse mat,Guessing game,.,29,Guessing game,.,30,What are they?,mouse,.,31,mouse mat,.,32,Printer,.,33,Speaker,.,34,Microphone,.,35,Keyboard and mou
11、se,.,36,Screen,.,37,A picture of a web page,Back arrow,Refresh,Home page,Web address,Link,.,38,Soft disks,.,39,Disk drive,.,40,Computer and the Internet,coder command computer language data processing digital computer display unit inline processing working storage,计算机语言 工作存储器 数据处理 数字计算机指令,命令 编码员,编码器
12、 显示装置内处理,.,41,More interesting Internet words网罗语言汇集（一）“炫”词酷语,偶： 我 大虾，老鸟： 大侠的谐音，网上高手 菜鸟，小虾，初哥： 网上低手，网上新手 三大不了：网站 界面： 印象 主机： 结为伴侣 编写应用程序： 在电脑上写情书 联网： 结婚 网婚： 从网恋到在线同居再到网上结婚 顶： 支持，赞同 马甲： 指一个人拥有的多个ID 坛子： 论坛 闪客 ： 制作flash的人 泡菜： 指在论坛里浏览,.,42,网络语言汇集（一）趣味数字,1314 生一世 1314920 一生一世就爱你 1372 厢情愿 1414 意思意思 147 一世情,
13、1573 一往情深 1711 一心一意 1798 一起走吧 530 我想你 687 对不起 8384 不三不四,.,43,1. laugh out loud 2. for your information 3. keep in touch 4. be right back 5. by the way,6. thanks again 7. youre welcome 8. thanks in advance 9. see you 10. as soon as possible,网络语言汇集（二）字符表意,.,44,Abbreviations used in Internet chat rooms,PK IC LZ Me2 MPJ PF PMP PLZ SJB VS VIP,比拼，单挑 我明白 楼主 我也是 马屁精 佩服 拍马屁 请 神经病 对决 嘉宾，重量级人物,.,45,网络语言汇集（三）表情符号,_ 男士的笑脸。 . 女孩子的可爱的笑脸。 o 高兴、大笑。 _ 挤眉弄眼。 _ 兴奋。,(_)/ 男士高呼万岁时的笑脸。 . 女生高兴得笑翻时甩着辫子。 =-= 脸红什么?,