完美WORD格式

[Ex. 6] 1. T 2. F 3. F 4. T 5. T 6. T 7. T 8. F 9. F 10. F 11. T 12.

T 13. T 14. F 15. T 16. F 17. T 18. T 19. F 20. T 21. T 22. T

Unit 5

[Ex 1] 1. T 2. T 3. F 4. T 5. F 6. F 7. F 8. T 9. T 10. T 11. F 12.

T 13. F 14. F 15. T 16. T 17. F 18. T 19. F 20. F 21. T 22. T 23. T

[Ex 2] 1. mail, courier 2. hub, star 3. Local Area Network 4. packets 5. Ethernet

6. kilobits per second, megabits per second, gigabits per second 7. circuit switching 8. reassembled 9. Internet Protocol, Transmission Control Protocol 10. datagram 11. frames 12. binary, decimal

[Ex 3] A. 1. C 2. E 3. B 4. F 5. A 6. D 7. H 8. G B. 1. hub 2. zipped 3. decimal 4. frame

5. binary number 6. Internet 7. packet 8. bandwidth

[Ex 4] 1. forwarded 2. reassembled 3. are encapsulated 4. cables 5. bursty

6. submit 7. are retransmitted 8. protocol [Ex 5]

1. E 2. A 3. C 4. F 5. B 6. D 7. H 8. G

[Ex 6]

1. 有意为技术服务人员留下的

2. 抛弃、丢失或毁灭的数据都进入到数据接受器中 3. 远远不能覆盖绝大多数嫌疑人 4. 真正奇才所掌握的技术 5. 文件和程序

6. 1. 系统详情、扩展其性能 5. 敏感信息的人 7. 滞缓的特性和控制开发的复杂性

8. 非常巧妙的权宜之计，旨在解决很棘手的问题 9. 不能有效与他人沟通的人

10. 一个程序、数据结构或全部程序的 11. 交叉指向不合适的新闻组

12. 打免费长途电话了；通信网络，但不单指通信网络 13. 眼睛疲劳

14. 无关紧要或令人讨厌的琐碎问题

15. 不会有人发现这些漏洞的，或发现了也不会利用 16. 受人雇佣，为测试系统的安全性而攻入某个地方

17. 那种使用许多GOTO、例外或另外的“非结构的”分支构造 18. 不能定期运行适当的抑制程序 19. 某种非常友好程序的 20. 远在没有正式发行之前

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完美WORD格式

21. 该技术也许不能发挥作用。如果不能用，程序员也永远不知道为什么 22. Suns 机上使用L1-A；某些Mac机使用!

23. 完全丧失功能了；计算机想做某事但不能进行下去了

24. 人的神经系统，与计算机的硬件或软件相对；系统的硬件或软件 25. 那种在紧急状况下能迅速发现并解决问题 26. 思想排外/思想保守

Unit 6

[Ex 1] 1. F 2. T 3. F 4. T 5. T 6. F 7. F 8. T 9. T 10. F 11. F 12. F

13. T 14. F

[Ex 2] 1. compatible 2. hardcopy 3. terminal, monitor 4. inked ribbon 5. line 6. Thermal 7. Monochrome 8. liquid crystal display [Ex 3] A. 1. G 2. B 3. I 4. F 5. D 6. H 7. C 8. E 9. J 10. A

B. 1. printers 2. hard copy 3. CRT 4. hardware 5. pixel

6. output 7. software 8. Line printers 9. plotters 10. graphics

[Ex 4] 1. are attached 2. compatible 3. flexible 4. mechanism 5. perform

6. rotate 7. transfer 8. video [Ex 5]

Electroluminescent Display（电致发光显示器）

A type of flat-panel display（平板显示）that uses the property of electroluminescence, whereby a phosphor will emit photons of radiation（光子辐射）when placed in an electric field（电场）. The phosphor is incorporated in a thin coating on the screen; an additional coating can produce full color. Electroluminescent screens are used in some large-screen displays, such as airport announcement boards. Nowadays electroluminescent screens are mainly used for small displays in control panels and domestic equipment.

电致发光显示器

这是一种平板显示器。把荧光粉放置在电场之中就能发射光子辐射，这就是平板显示器使用的电致发光性能。屏幕上有薄薄的荧光粉涂层，这个添加涂层能产生全彩。电致发光屏幕用于某些巨大的显示屏上，例如机场通告板。如今电致显示屏主要用于控制板和家庭设施的小型显示器上。

[Ex. 6] 1. T 2. F 3. T 4. F 5. T 6. F 7. F 8. T 9. F 10. T 11. F 12.

T 13. F 14. T 15. F 16. T 17. T 18. T 19. T 20. F 21. T 22. F 23. T 24. T 25. T

Unit 7

[Ex 1] 1. T 2. F 3. T 4. T 5. F 6. F 7. T 8. T 9. F 10. F 11. F 12. T

13. F 14.T 15. T 16. F 17. T 18. T 19. F 20. F

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完美WORD格式

[Ex 2] 1. printers, plotters 2. graphics 3. pins 4. pages per minute 5. dots per inch

6. lines per minute 7. non-impact 8. carbon

[Ex 3] A. 1. D 2. F 3. B 4. A 5. G 6. E 7. C 8. H

B. 1. print wheel 2. Microcomputers 3. ink jet printer 4. network

5. noise 6. output device 7. desktop publishing 8. dot-matrix printers

[Ex 4] 1. installations 2. categorized 3. image 4. ribbon 5. monochrome 6. physical 7. referred to 8. dot [Ex 5]

Digital Technology of Copy Machine

There is an increasing trend for new photocopiers to adopt digital technology, thus replacing the older analog technology. With digital copying, the copier effectively consists of an integrated scanner and laser printer. This design has several advantages, such as automatic image quality enhancement and the ability to \jobs\(that is, to scan page images independently of the process of printing them). Some digital copiers can function as high-speed scanners; such models typically offer the ability to send documents via email or to make them available on file servers.

A great advantage of digital copier technology is \digital collation.\For example, when copying a set of 20 pages 20 times, a digital copier scans each page only once, then uses the stored information to produce 20 sets. In an analog copier, either each page is scanned 20 times (a total of 400 scans), making one set at a time, or 20 separate output trays are used for the 20 sets.

Notes:

scanner 扫描仪 collation [k??lei?(?)n] n. 校勘，核对 tray 托盘，文件盘

复印机的数字技术

新的复印机越来越趋向于采用数字技术替代老的模拟技术。数字复印机有效地把扫描仪和激光打印机整合在一起，这种设计拥有数个优势，譬如自动图形质量提高，自动工作的能力（扫描和打印互不干涉）。有些数字复印机如同一个高速扫描仪，这样的型号通常具有通过email发送文件的能力，或者给文件服务器提供文件。

数字复印机的最大优点在于它可以“自动数字校验”。例如当要复印20页，每页复印20份的时候，数字复印机只需每一页扫描一次，然后使用储存的信息复印20份。如果是模拟复印机，要么每一页都要扫描20次（一共要扫描400次），一次复印一份；要么每页复印20份，20页分别放在20个输出托盘中。

[Ex.6] 1. F 2. T 3. T 4. T 5. F 6. T 7. F 8. T 9. T 10. F 11. T 12.

T 13. F 14. F 15. T 16. F 17. T 18. F 19. T 20. T 21. T 22. F 23. T 24. T

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完美WORD格式

Unit 8

[Ex 1] 1. T 2. F 3. T 4. T 5. F 6. T 7. F 8. F 9. F 10. T 11. F 12.

T 13. T 14. F 15. T 16. T 17. F 18. T 19. T 20 F 21. F 22. T 23. T 24. F

[Ex 2] 1. Local area networks, wide area networks 2. client-server 3. bus 4. protocol

5. hardware 6. microwaves 7. adapter, router 8. stack 9. upper, lower 10. layered

[Ex 3] A. 1. D 2. E 3. F 4. H 5. A 6. G 7. B 8. C

B. 1. C. server 2. E.adapter 3. D. topology 4. G. microwave

5. A. local 6. H. inception 7. B. wide 8. F. Wireless

[Ex 4] 1. layout 2. accommodate 3. conforms 4. address 5. interoperable 6. session 7. has been designated/was designated等 8. configuring [Ex 5] 1. H 2. A 3. F(transmits) 4. C 5. D 6. E 7. B 8. G

[Ex 6]1. T 2. T 3. F 4. T 5. F 6. F 7. T 8. T 9. T 10. T 11. T 12.

F 13. T 14. T 15. T 16. F 17. F 18. T 19. F 20. T 21. T 22. T 23. T 24. F 25. T 26. T 27. T 28. F 29. F 30. F 31. T 32. T 33. F 34. T 35. T 36. F 37. T 38. F 39. F 40. F 41. T 42. T 43. T 44. F

Unit 9

[Ex 1] 1. T 2. T 3. F 4. T 5. F 6. F 7. T 8. T 9. T 10. F 11. T 12. F

13. T 14. F 15. T 16. T 17. T 18. F

[Ex 2] 1. channels 2. eletrical pulses or charges, eletromagnetic waves, pulse of light

3. telephone lines, coaxial cables, microwave systems, satellites systems, fiber optic

cables 4. telephone lines 5. networks 6. atmosphere 7. microwave tower

8. gigahertz 9. digital 10. light

[Ex 3] A. 1. B 2. D 3. F 4. G 5. A 6. C 7. E 8. H

B. 1. noise 2. transmission 3. Fiber optics 4. Microwave 5.

sychronous

6. optical media 7. Coaxial cable 8. digits

[Ex 4] 1. communicate 2. revolves 3. detect 4. encrypted 5. nonconductive

6. frequency 7. susceptible 8. relayed 9. antenna 10. Pulses [Ex 5]

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