武汉微博教育整理分享—计算机英语第三版课后答案（五）
练习答案
e-Business
Section A
I．Fill in the blanks with the information given in the text:
1． commercial; network
2． catalogs; engines
3． currencies; checks
4． relationship-based; purses
5． Signatures
6． cash; token
7． Public
8． Symmetric
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． user authentication  用户认证
2． electronic purse  电子钱包
3． information filter  信息过滤
4． data integrity  数据完整性
5． smart card  智能卡
6． HTML  超文本标记语言
7． symmetric key cryptosystem  对称密钥密码系统
8． message authentication code  信息鉴定码
9． unauthorized access control  未授权访问控制
10． electronic catalog  电子目录
11． electronic money (或cash)  电子货币 
12． search engine  搜索引擎 
13． digital signature  数字签名 
14． user interface  用户界面 
15． EFT (Electronic Funds Transfer)  电子资金转帐 
16． public key cryptosystem  公钥密码系统 
17． PDA (personal digital assistant)  个人数字助理 
18． hypertext link  超文本链接 
19． 3D image  三维图像 
20． credit card  信用卡 
III．Fill in each of the blanks with one of the words given in the following list, making changes if necessary:
The term electronic commerce encompasses the entire process of buying, selling, and advertising products and services using electronic communications media. But when people talk about (e-commerce) today, they're usually referring to the emerging marketplace on the Internet. (Retailers) of all kinds are now scrambling to establish themselves and reach (customers) in this new marketplace.
The major obstacle to e-commerce is the problem of how to pay for (products) and services online. How can electronic (payments) be made convenient, reliable, and (secure) for consumers and retailers alike? As with every other Internet (technology), a global standard for online (transactions) must emerge before e-commerce becomes a widely accepted (practice).
The drive to establish a standard for (electronic) money is well underway. Software developers, banks, and (credit) card companies are all pushing transaction systems to (online) merchants, each betting that their system will become the (standard) way to pay for things online. As a Web (storefront) owner, you must investigate all the (options) and offer as many choices to your customers as they demand, while keeping (costs) and complexities from getting out of hand.
IV．Translate the following passage from English into Chinese.
A computer virus is a program that “infects” computer files (usually other executable programs) by inserting in those files copies of itself. This is usually done in such a manner that the copies will be executed when the file is loaded into memory, allowing them to infect still other files, and so on. Viruses often have damaging side effects, sometimes intentionally, sometimes not.
A virus that propagates (传播) itself across computer networks is sometimes referred to as a “Worm”, especially if it is composed of many separate segments distributed across the network. A “Trojan Horse”, though technically not a virus, is a program disguised as something useful, which when run does something equally devious (阴险的) to the computer system while appearing to do something else.
计算机病毒是通过在计算机文件（通常是其他可执行程序）中插入自身的拷贝来“传染”这些文件的程序。这通常以如此的方式进行，以致文件装入内存时拷贝即被执行，从而使其可再传染其他的文件，等等。病毒常常产生破坏性的副作用，有时是有意的，有时则是无意的。
在计算机网络上自我传播的病毒有时称为“蠕虫”，尤其是在它由分布在网络各处的许多独立部分构成的情况下。“特洛伊木马”虽然从技术上讲不是病毒，但它是伪装成有用东西的程序，运行时在对计算机系统做着同样阴险的事情的同时，表面上却显得在做其他的事情。
Section B
I．Fill in the blanks with the information given in the text:
1． Four
2． e-Business
3． vendor-centric; customer-centric
4． Infrastructure
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． vendor-centric model  客户中心模式
2． Web site  网站
3． Web surfing  网上冲浪
4． middleware server  中间件服务
5． back-end platform  后端平台
6． e-Business strategy  电子商务策略 
7． binary format  二进制格式 
8． customer-oriented e-Business system  面向客户的电子商务系统 
9． ISV (independent software vendor)  独立软件推销商 
10． information infrastructure  信息基础结构设施 
Section C
I．Fill in the blanks with the information given in the text:
1． Services
2． Marketing
3． storefronts; consulting
4． advertisements; subscriptions
II．Translate the following terms or phrases from English into Chinese and vice versa:tablet pc平板
1． Web storefront  网上店面
2． electronic press kit  电子版发行包
3． online retail  在线零售
4． multimedia demo  多媒体演示
5． online access  联机访问 
6． value-added services  增值业务 
7． product promotion  产品推销 
8． communication medium  通信媒体 
Unit 14
Computer Security
Section A
I．Fill in the blanks with the information given in the text:
1． employees
2． Hackers
3． Crackers
4． damage; manipulation
5． Worm
6． software piracy
7． access; backup
8． Passwords
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． encryption program  加密程序
2． deletion command  删除命令
3． authorized user  授权的用户
4． backup copy  备份的副本
5． voltage surge  电涌，浪涌电压
6． circuit breaker  断路器
7． electronic component  电子器件
8． data-entry error  数据输入错误
9． electronic break-in  电路中断
10． power line  电力线，输电线
11． detection program  检测程序 
12． power source  电源 
13． destructive computer program  破坏性计算机程序 
14． computer virus  计算机病毒 
15． software piracy  软件侵权 
16． hard-disk drive  硬盘驱动器 
17． virus checker  病毒检查程序 
18． primary storage  主存储器 
19． electronic bulletin board  电子公告板 
20． surge protector  浪涌电压保护器 
武汉微博教育
III．Fill in each of the blanks with one of the words given in the following list, making changes if necessary:
A virus or other unwelcome surprise can lurk in your computer system for days or months without discovery. A time bomb is a computer program that stays in your system undetected until it is triggered by a certain event in time, such as when the computer system clock reaches a certain date. A time bomb is usually carried by a virus or Trojan horse. For example, the Michelangelo virus contains a time bomb designed to damage files on your hard disk on March 6, the birthday of artist Michelangelo.
A logic bomb is a computer program that is triggered by the appearance or disappearance of specific data. For example, suppose a programmer in a large corporation believes that she is on the list of employees to be terminated during the next cost-cutting campaign. Her hostility (敌意) overcomes her ethical (道德的) judgment, and she creates a logic bomb program that checks the payroll (在职人员名单) file every day to make sure her employment status is still active. If the programmer’s status changes to “terminated,” her logic bomb activates a program that destroys data on the computer.
A time bomb or logic bomb might do mischief (祸害) in your computer long before the timer goes off. If the bomb contains a virus, it could replicate and spread to other files. Meanwhile, you might send files from your computer to other computers, not knowing that they are infected.
IV．Translate the following passage from English into Chinese.
But the really amazing thing is that we’re still only at the dawn of the digital age. In the past two decades, the power of microprocessors has increased more than one million times. But 20 years from now, microprocessors will probably be more than a million times again as powerful as they are today. And they’ll contain up to one billion transistors.
Over the next few years the PC will remain the main computing tool for most people, but it will be joined by all kinds of new, microprocessor-powered devices that will make your life even easier. For example, when you’re traveling you’ll be able to call up your itinerary, send an e-mail postcard, book an appointment with your doctor or balance your bank account using a handheld PC that will know what information you need, and when and where you need it. And you’ll be able to get a map, hotel guide or the news from the Web via new kinds of cell phones.
但是，真正令人吃惊的是，我们仍然只是处于数字时代的开端。在过去20年，微处理器的功能增强了一百多万倍。但是，今后20年，微处理器的功能很可能比今天再增强一百多万倍。而且，它们将含有多达10亿个晶体管。
在今后几年，个人电脑将依然是大多数人的主要计算工具，但是，在个人电脑之外，将出现各种新颖的由微处理器驱动的设备，使你的生活更加便利。例如，你旅行的时候，可以调出旅行计划，发送明信片，预约医生，或者结算银行账户，所使用的则是手持式个人电脑，它知道你需要什么信息以及何时何地需要。而且，你可以通过新型手机得到地图、饭店指南或网上新闻。
Section B
I．Fill in the blanks with the information given in the text:
1． Macro
2． boot sector
3． Parasitic
4． Trojan或Trojan Horse
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． partition table  分区表
2． host program  主机程序
3． anti-virus software  反毒软件
4． global template  公用模板
5． virus signature  病毒特征代码
6． BBS (bulletin board system)  公告板系统 
7． data corruption  数据毁损 
8． MBR (master boot record)  主引导记录 
9． boot sector  引导扇区 
10． macro virus  宏病毒 
Section C
I．Fill in the blanks with the information given in the text:
1． Protect
2． entertainment; challenge
3． IP address
4． back doors
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． system platform  系统平台
2． install back doors  安置后门
3． email attachment  的附件
4． vulnerability assessment tool  弱点评估工具
5． network security measure  网络安全措施 
6． system maintenance personnel  系统维护人员 
7． MX record  函件交换记录 
8． hack a system  非法闯入系统 
Unit 15
Remarks by IT Giants
Section A
I．Fill in the blanks with the information given in the text:
1． color TVs
2． Web
3． Corporations
4． Connectivity
5． access或connectivity
6． telecommunications; telephone
7． wireless; high-bandwidth
8． Internet
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． PC-plus era  PC影响力增强的时代
2． cable modem  海底电缆
3． universal PC model  通用PC模式
4． multifunctional device  多功能设备
5． information overload  信息过载，信息超负荷
6． high-bandwidth connectivity  高带宽连通性
7． consumer electronics  消费类电器
8． investment portfolio  投资组合
9． virtual convergence  虚拟整合
10． tablet PC  便笺簿式个人电脑
11． voice recognition  语音识别 
12． smart television  智能电视 
13． R & D (research and development)  研究与开发 
14． surf  the  Web  在网上冲浪 
15． Auto PC  自动个人计算机 
16． e-mail colleagues  给同事发 
17． Web-enabled cell phone  具有上网功能的手机 
18． digital technology  数字技术 
19． wireless technology  无线技术 
20． broadband communications  宽带通信 
III．Fill in each of the blanks with one of the words given in the following list, making changes if necessary:
At home, you’ll be able to operate your PC by talking to it. It will automatically back up all your information, update its own software and synchronize itself with your TV, cell phone, handheld, and all the devices on your home network. The refrigerator in your kitchen will know how well stocked it is, suggest recipes based on what’s available, and order more food from your online grocer. Your TV will double as an interactive shopping mall, letting you buy advertised products or clothes you saw in a sitcom. And if you don’t want to watch TV, you’ll be able to read an electronic book that knows your favorite authors and automatically downloads their latest novels. If you decide to read one of them, your bank account will be debited.
Sounds like science fiction? Just a few years ago, it was. But thanks to the microprocessor—and to all the incredible innovations in software, hardware, the Internet and telecommunications—everything I’ve described is already possible. And although you can’t yet buy all these devices at your local computer retailer, the incredible speed at which technology is advancing means that it won’t be long before they’re as commonplace as the PC.
Section B
I．Fill in the blanks with the information given in the text:
1． information; communication
2． e-business
3． Restructuring
4． Application
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． networking technology  网络技术
2． assembly plant  组装厂
3． state-owned enterprise  国有企业
4． economic reform  经济改革
5． supply chain  供应链
6． cable television 有线电视 
7． cost control  成本控制 
8． joint venture  合资企业 
9． application software  应用软件 
10． inventory management  库存管理 
Section C
I．Fill in the blanks with the information given in the text:
1． Fundamentals
2． Opportunities
3． technology; technological
4． memory chips; microprocessors
II．Translate the following terms or phrases from English into Chinese and vice versa:
1． inflection point  拐点，回折点
2． media industry  媒体业
3． mainframe computer  大型计算机
4． problem diagnosis  问题诊断
5． technological concept  技术概念
6． ATM (Automatic Teller Machine)  自动柜员机
7． memory chip 存储芯片
8． competitive environment  竞争环境

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