新视野大学英语第四册第四单元课件

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Information Age When we say that we live in the information age, we mean that we live in a time when information is very important and easy to get. The information age is an era of fundamental and global change in intellectual, philosophical, cultural and social terms. Today’s information age began with the telegraph. It was the first instrument to transform information into electrical form and transmit it reliably over long distances. New techniques of encoding and distributing digital information are pacing the spread of the information age throughout society.
Text A
The Telecommunications Revolution
Book 4, Unit 4
Proper names
telecommunications 电信 optical fiber (L. 6) /high 光纤. 光学纤维/高容量的 capacity optical fiber links (L. 光纤电缆网 38) cable (L. 7) 电缆 copper wire (L. 8) 铜线（电缆） digital switches (L. 8)/digital 数字转换器/数字模式/数 字移动电话系统 model (L. 22)/digital mobile phone systems (L. 51) 无线传播系统 wireless transmission systems (L. 9) the Information Age (L.10) 信息时代 a spider’s web of digital and 一个蜘蛛网般的数字和无 wireless communication links 线通信网络 (L. 11) 2
信息高速公路 进入（计算机）系统；登 录/退出 电子数据/电子（信号） 无纸化交易 无线电发射塔 翻山越岭架设线路 无线电话 固定线路
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Telecommunications What telecommunications devices are available in your life? What does telecom mean to you?
Vietnam (Para. 10)
Vietnam plans to invest more in optical fiber digital switches, and transmission systems to keep pace with anyone in Asia in new tech for decades.
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Filling the blanks
Countries Advantages Problems Solutions Results
Russia China
Hungary
Latin America Thailand
Vietnam
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Detailed Reading
…should greatly boost living standards… (L. 1) 提高生活水准
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optical fiber Optical fiber (or “fiber optic”) often refers to the medium and the technology associated with the transmission of information as light pulses(光脉 冲) along a glass or plastic wire or fiber. Optical fiber carries much more information than conventional copper wire and is in general not subject to electromagnetic电磁的 interference and the need to retransmit signals. Most telephone company long-distance lines are now of optical fiber.
People in Thailand are happy to accept the new technologies as they can make better use of all the time they spend stuck in traffic with mobile phones.
Proper names
the information superhighway (L. 39) log on (to)/ log out/off (L. 40) the electronic data (L. 42) /electron (L. 73) paperless trading (L. 43) radio tower (L. 53) string lines across mountain ridges (L. 53) wireless call (L. 55) fixed lines (L. 56)
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Global Reading
Text Analysis
Introduction + Question + Sample Solutions + Conclusion
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Global Reading
Text Analysis
Fast Reading Part I (Para. 1~2) A New Technology and Its Advantages • What’s the new technology? • What are its advantages? (6 advantages) Part II (Para. 3) What’s in Suspense • What’s the problem developing countries are facing? Part III (Para. 4~10) What’s in Certainty • Communications will be a key factor separating the winners from the losers. • What are the conditions in the six countries and regions? Russia, the mainland of China, Hungary, Latin America, Thailand, Vietnam. (one-sentence summary only) Part IV (Para. 11) A Brilliant Prospect 10
satellite telephone & mobile phone digital TV radio Internet and email
fax
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Telecommunications Telecommunications, from Greek, means “communications at a distance”. The first trend: the incredible increase in the processing power of digital computers, namely, dramatic decreases in physical size, dramatic increases in complexity, speed and capacity. The second trend: the explosive growth in transmission capacity through the widespread use of optical fiber across continents and under oceans.
Different from other countries, wireless phone service providers in Latin American countries are making money.
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Answers Conditions in the Six Countries and Regions Thailand (Para. 9)
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Answers
Conditions in the Six Countries and Regions
Hungary (Para. 7)
To overcome the problem of funding and to speed the import of Western technology, Hungary sold a 30% stake in its national phone company to two western companies, which Hungary finds worthwhile. Latin America (Para. 8)
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Information superhighway
ຫໍສະໝຸດ Baidu
A name first used by former U.S. Vice President Al Gore for the vision of a global, high-speed communications network that will carry voice, data, video, and other forms of information all over the world, and that will make it possible for people to send e-mail, get up-to-the-minute news, and access business, government and educational information.
Answers
Conditions in the Six Countries and Regions
Russia (Para. 4)
Russia needs to invest in information technology a huge amount of money to update its ancient telephone system but it is unlikely due to a poor economy. The mainland of China (Para. 5~6) China, taking advantages of its backwardness, invests a huge amount of money to become major parts of the information highway, and Shanghai plans telecom networks as powerful as those in Manhattan.