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:
2. recommend ①推荐,介绍 e.g: Can you recommend me a good hotel? 你能给我介绍一家好旅馆吗? ②劝告,建议 e.g: I recommend caution in deal with this matter 我建议慎重处理此事。 ③使有吸引力 e.g: This hotel has nothing to recommend except cheapness 这家旅馆除了便宜之外,就没有什么可取之处了。 常用短语] recommend sth.tosb.把某物推荐给某人; recommend sb.sth. 向某人介绍某物 recommend sb. to do sth.推荐(介绍)某人于某事
①推荐，介绍 e.g: Can you recommend me a good hotel？ 你能给我介绍一家好旅馆吗？ ②劝告，建议 e.g: I recommend caution in deal with this matter． 我建议慎重处理此事。 ③使有吸引力 e.g: This hotel has nothing to recommend except cheapness． 这家旅馆除了便宜之外，就没有什么可取之处了。 ［常用短语］recommend sth. to sb．把某物推荐给某人；recommend sb.sth． 向某人介绍某物recommend sb. to do sth．推荐（介绍）某人于某事 2. recommend v
3. resemble v 像,类似,相似不可用于进行式;无被动态。 e.g: She resembles her sister in/ appearance but not in character 她的外表像她姐姐,但个性不像。 [常用短语] resemble.in在.相似,类似 4. simultaneous ad 同时发生或做出的 e.g: There was a flash of lightning and a simultaneous crash of thunder.一道闪电出现,同时响起了雷声
像，类似，相似,不可用于进行式；无被动态。 e.g: She resembles her sister in appearance but not in character． 她的外表像她姐姐，但个性不像。 ［常用短语］resemble…in 在……相似，类似 3．resemble v 同时发生或做出的 e.g: There was a flash of lightning and a simultaneous crash of thunder．一道闪电出现，同时响起了雷声。 4．simultaneous adj．
5. forword v.①转交,转运,转寄 eg: When we moved, we asked the people who took our old house to forward l our mall to our new address 我们搬家时,请住进我们原来屋子的人把我们的邮件转寄到新地址来。 ②发送,寄 e.g: We will forward the goods when we receive your cheque 当收到你们的支票时,我们就发送这批货。 ③促进,助长 e.g: We are doing all we can to forward the progress of the talks 我们正尽一切努力促进会谈取得进展。 adv.向前,出来 常用短语] look forward to期待,希望
v．①转交，转运，转寄 eg: When we moved，we asked the people who took our old house to forward all our mall to our new address． 我们搬家时，请住进我们原来屋子的人把我们的邮件转寄到新地址来。 ②发送，寄 e.g: We will forward the goods when we receive your cheque． 当收到你们的支票时，我们就发送这批货。 ③促进，助长 e.g: We are doing all we can to forward the progress of the talks． 我们正尽一切努力促进会谈取得进展。 adv．向前，出来 ［常用短语］look forward to期待，希望 5． forword
6. reflect v ①反射 eg: The mountains were reflected in the lake.山倒映在湖面上。 ②表达,反映 e.g: His behaviour reflects his lazy attitude to work. 他的行为反映了他对待工作的懒惰态度。 ③仔细考虑 e.g: After reflecting for a time (on the problem) he decided not to go 仔细考虑(这个问题)后,他决定不去了 【常用短语】 reflect on/upon招致(不利的反响),给带来(坏)影响; reflect sth.onsb./sth(行为,事件)带来(荣誉或耻辱)
① 6． reflect v． ①反射 e.g: The mountains were reflected in the lake.山倒映在湖面上。 ②表达，反映 e.g: His behaviour reflects his lazy attitude to work． 他的行为反映了他对待工作的懒惰态度。 ③仔细考虑 e.g: After reflecting for a time（on the problem）hedecided not to go 仔细考虑(这个问题）后，他决定不去了。 【常用短语】reflect on／upon 招致（不利的反响），给……带来（坏）影响； reflect sth. on sb.／sth.（行为，事件）带来（荣誉或耻辱）
8. keep tabs(a tab)on 观察,盯紧,把…,记账 e.g: The police have been keeping tabs on him 警方一直在严密监视着他 e.g: Youd better keep a tab on your spending. 你最好把你的花销记好账。 9. on business 出差 eg: Im here on business, not for pleasure.我到这里是来出差的不 是来玩的。 eg: He often goes to Japan on business.他经常到日本出差
8. keep tabs ( a tab ) on 观察，盯紧，把……记账 e.g: The police have been keeping tabs on him． 警方一直在严密监视着他。 e.g: You”d better keep a tab on your spending． 你最好把你的花销记好账。 9．on business 出差 e.g: I’m here on business，not for pleasure.我到这里是来出差的不 是来玩的。 e.g: He often goes to Japan on business．他经常到日本出差