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1、Unit FourThe Telecommunications Revolution,Telecommunications, from Greek, means “communications at a distance”. Telecommunications through voice, data, and image communication is changing the world. The ease of accessing information and people of the world at anytime is having major impacts on soci
2、ety ,business, and finance.,What is communications?,Chatting online,Playing games,Watching movies,Searching for information,problems,Shopping,Virtual Life,Listening to music,Sending Emails,Company Logo,Company Logo,Company Logo,Warming Up,SOHO: You can work at home through computer. The Internet mak
3、es SOHO (small office, home office) possible.,Warming Up,2. Online shopping: You can buy anything you want without going out.,3. E-business: Conduct business online.,Warming Up,4. E-learning: Learn about other cultures without traveling farther than the nearest computer. 5. Blog: A way to present ne
4、ws and political or personal information. ,1. Familiarize the possible telecommunications tools!,2. Discuss with your partner and list as many high-tech products as possible!,in the old society: 驿 (Horse), 钟鼓(drum)、烟火(smoke, fire)、鸽子(pigeon)、旗语(flag signal)、狼烟、 letters, post office,in the modern soc
5、iety: 电报(telegram) 、电话（telephone）、电子邮件(e-mail)、短信(instant-messaging)、电视电话会议（teleconference）、手机（mobile phone）、BP机、电脑(computer)、传真(fax),discussion,Topic: Discuss with your partner the advantages and disadvantages of those old and modern telecommunications tools!,tips: the old tools: slow, inefficient,
6、 cost a lot of time, labor, energy, easy to be lost, insecure, the modern ones: quick, fast, make people closer, make the world small,IT PC PDA ISP ICP BBS,4. What are the words those abbreviations represent?,Information Technology Personal Computer Personal Date Assistant Internet Service Provider
7、Internet Content Provider Bulletin Board System,信息技术 个人电脑 个人数字助理 互联网服务提供商 互联网内容提供商 电子公告牌系统,5.Modern telecommunications terms,小灵通 彩信 智能手机 第三代移 动通信技术 码分多址,Personal Access Phone Multimedia Messaging service Smartphone 3rd Generation Code-Division Multiple Access,小灵通是无线市话的特定称谓，是固定电话的补充和延伸; 彩信MMS, 意为多媒体信
8、息服务; 智能手机原于手机功能的日益强大、无线因特网的引入以及操作系统的逐渐智能化; 第三代移 动通信技术能够处理图像、音乐、动画等多媒体信息; CDMA手机具有低辐射、话音清晰、掉线率低、保密性好、手机待机时间长等诸多优点,Topics for Discussion,1. What are the advantages and disadvantages of modern technology products? Such as computers and mobilephones? 2. How do you usually use computer? In your opinion,
9、how should we make full use of computer and Internet?,How is the text organized?,The passage is arranged into four parts: The advantages of telecommunications technologies; the questions that should be considered in developing the new technologies for developing countries; different countries trying
10、 to solve their problems with different solutions; and the conclusions. As a striking feature of its organization, what is in suspense is sketched out whereas what is in certainty is explicated through comparison and exemplification.,For details,Part 2 (Para. 3) Whats in suspense.,Part 1 (Paras. 1-2
11、) A new technology and its advantages.,Part 3 (Paras. 4-10) Whats in certainty.,Part 4 (Para. 11) A brilliant prospect.,Telecommunications: boosting living standards and promoting internal and foreign investment;,How fast to develop telecommunications technologies in developing countries.,Communicat
12、ions will be a key factor separating the winners from the losers. Six countries and regions are working hard to realize telecommunications transformation.,Developing countries can catch up with Americans and Western Europeans if they persist.,Main idea?,Devices for developing it?,Advanced telecommun
13、ications will boost living standards in the developing world, speed its step into Information Age, and accelerate the rate of its economic development, etc.,Contrast (对比法),For details,The advantages of telecommunications revolution for developing countries,1. Boosting _ and promoting _ investment.,2
14、. Stepping directly into the Information Age and _ _ development.,living standards,internal and foreign,leaping over whole stages of,labor-intensive,engineering,Blank Filling (Paras. 12),3. Changing _ assembly work into industries involving _ _.,marketing and design,old economic,Contrast is employed
15、 in the first paragraph to highlight the advantage of optical fiber over conventional materials.,For details,返回,It may take a decade for many countries in Asia, Latin America, and Eastern Europe to improve transportation, power supplies, and other utilities. But a single optical fiber with a diamete
16、r less than millimeter can carry more information than a large cable made of copper wires. By installing optical fiber, digital switches, and the latest wireless transmission systems, a parade of urban centers and industrial zones from Beijing to Budapest are stepping directly into the Information Age.,Exemplification (例证法),Main idea
