Unit Five TextA Modern communication The Laser and Fiber-Optic Revolution
Modern Communication: The Laser and Fiber-Optic Revolution Unit Five Text A
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Unit five Text a I Pre-Reading Task 1. How much do you know about the Internet 2. What do people usually do on the Internet? 3. What has made the Internet possible?
Unit Five Text A I Pre-Reading Task 1.How much do you know about the Internet? 2.What do people usually do on the Internet? 3.What has made the Internet possible?
II. Text-related Information Internet is a network connecting many computer networks and based on a common addressing system and communications protocol called TCP/IP( Transmission/ Control Protocol/ Internet Protocol). From its creation n 1983 it grew rapidly beyond its largely academic origin into an increasingly commercial and popular medium By the mid-1990s the\ Internet were had connected/ millions of computers throughout the world. Many commercial computer network and data services also provided at least indirect connection to the Internet The original uses of the Internet were electronic mail ( commonl called E-mail?), file transfer (using ftp, or file transfer protocol), bulletin boards and news groups, and remote computer access (telnet). The World Wide Web, which enables simple and intuitive navigation of Internet sites through a graphical interface, expanded dramati cally during the 1990s to become the most important component of the internet
II.Text-related Information Internet is a network connecting many computer networks and based on a common addressing system and communications protocol called TCP/IP( Transmission Control Protocol/ Internet Protocol). From its creation in 1983 it grew rapidly beyond its largely academic origin into an increasingly commercial and popular medium. By the mid-1990s the Internet were had connected millions of computers throughout the world. Many commercial computer network and data services also provided at least indirect connection to the Internet. The original uses of the Internet were electronic mail ( commonly called “E-mail”), file transfer (using ftp, or file transfer protocol), bulletin boards and news groups, and remote computer access (telnet). The World Wide Web, which enables simple and intuitive navigation of Internet sites through a graphical interface, expanded dramatically during the 1990s to become the most important component of the Internet
l. Detailed Study: 1.associate v. ①与…结合,与.合伙,与…交往 e.g: He associates with criminals ②由.联想到 g: We often associate the yellow river and the changjiang river with the civilization of the Chinese people. ③n.同事,伙伴 e.g: He's not a friend, but a business associate. 这个人不能算朋友,只是不是生意上的伙伴。 [常用短语 associate…with,把.与..联想在一起,由∴联想到
①与 … 结合， 与 …合伙， 与 …交往 e.g: He associates with criminals. ②由… 联想到 e.g: We often associate the Yellow River and the Changjiang River with the civilization of the Chinese people. ③ n. 同事， 伙伴 e.g: He’s not a friend, but a business associate. 这个人不能算朋友，只是不是生意上的伙伴。 ［常用短语associate…with, 把…与…联想在一起，由…联想到 1.associate v. III. Detailed Study: