计算机英语第3版课后习题答案

计算机英语第3版课后习题答案
计算机英语第3版课后习题答案

They can also be classified as mainframes, minicomputers, 3版)》练习参考答案《计算机英语(第workstations, or microcomputers.

All else (for example, the age of the machine) being equal, this Unit One: Computer and Computer Science

categorization provides some Unit One/Section A

indication of the computer's speed, size, cost, and abilities. I. Fill in the blanks with the information given in the text:

Ever since the advent of computers, there have been constant 1. Charles Babbage; Augusta Ada Byron

changes. First-generation 2. input; output

computers of historic significance, such as UNIVAC (通用自动计3. VLSI

4. workstations; mainframes 算机), introduced in the

5. vacuum; transistors early 1950s, were based on vacuum tubes. Second-generation

6. instructions; software computers, appearing in the

7. digit; eight; byte early 1960s, were those in which transistors replaced vacuum

8. microminiaturization; chip tubes. In third-generation

computers, dating from the 1960s, integrated circuits replaced

II. Translate the following terms or phrases from English into transistors. In fourth-generation

Chinese and vice versa: computers such as microcomputers, which first appeared in the

1. artificial intelligence 人工智能mid-1970s, large-scale

integration enabled thousands of circuits to be incorporated on 纸带阅读器2. paper-tape reader

one chip. Fifth-generation 3. optical computer 光计算机

computers are expected to combine very-large-scale integration 神经网络4. neural network

with sophisticated approaches 5. instruction set 指令集

to computing, including artificial intelligence and true distributed 并行处理6. parallel processing

processing. 差分机7. difference engine

8. versatile logical element 通用逻辑元件IV. Translate the following passage from English into Chinese: 硅衬底

9. silicon substrate 计算机将变得更加先进,也将变得更加容易使用。语音识别的真空管10. vacuum tube 改进将使计算机的操数据的存储与处理11. the storage and handling of data 作更加容易。虚拟现实,即使用所有人类官能与计算机进行交超大规模集成电路12. very large-scale integrated circuit 互的技术,也将有助于创13. central processing unit 中央处理器建更好的人机接口。人们正在开发其他的奇异计算模型,包括analogue 模拟计算机个人计算机14. personal computer 15. 使用生物机体的生物计算、computer

使用具有特定属性的分子的分子计算,以及使用遗传基本单位数字计算机digital computer 16.

DNA(脱氧核糖核酸)存17. 通用计算机general-purpose computer

储数据和执行操作的计算。这些都是可能的未来计算平台的例18. 处理器芯片processor chip

子,而它们迄今还能力有operating instructions 19. 操作指令限或完全属于理论范畴。科学家们研究它们,是因为嵌入硅中20. 输入设备input device

的电路的微小型化受到物理限制。还有一些限制与甚至最微小

的晶体管也会产生的热量有关。III. Fill in each of the blanks with one of the words given in the following list, making

Unit One/Section B changes if necessary:

I. Fill in the blanks with the information given in the text: We can define a computer as a device that accepts input,

1. experimentation processes data, stores data, and

2. interfacing produces output. According to the mode of processing, computers

3. interdisciplinary are either analog or digital.

4. microprocessor

II. Translate the following terms or phrases from English into 2. voice recognition module 语音识别模块

Chinese and vice versa: 3. touch-sensitive region 触敏区

1. artificial neural network 人工神经网络4. address bus 地址总线

2. computer architecture 计算机体系结构5. flatbed scanner 平板扫描仪

3. robust computer program 健壮的计算机程序6. dot-matrix printer 点阵打印机(针式打印机)

4. human-computer interface 人机接口7. parallel connection 并行连接

5. knowledge representation 知识表示8. cathode ray tube 阴极射线管

6. 数值分析numerical analysis 9. video game 电子游戏10. audio signal 音频信号

7. 程序设计环境programming environment 11. 操作系统operating system

数据结构data structure 8. 12. 液晶显示(器)LCD (liquid crystal display)

9. 存储和检索信息store and retrieve information 13. 喷墨打印机inkjet printer

虚拟现实virtual reality 10. 14. 数据总线data bus

15. 串行连接serial connection

Unit One/Section C 16. 易失性存储器volatile memory

I. Fill in the blanks with the information given in the text: 17. 激光打印机laser printer

1. format 18. 磁盘驱动器disk drive

2. synchronization 19. 基本输入/输出系统BIOS (Basic Input/Output System)

3. virtual 20. 视频显示器video display

4. multimedia; third-party III. Fill in each of the blanks with one of the words given in the II. Translate the following terms or phrases from English into following list, making Chinese and vice versa: changes if necessary: 1. data field 数据字段,数据域学习曲线 2. learning curve CD-ROM stands for compact disc read-only memory. Unlike

3. third-party solution 第三方解决方案floppy and hard disks,

4. Windows Media Player Windows媒体播放器which use magnetic charges to represent 1s and 0s, optical discs

5. 开始按钮Start button use reflected light. On a

designated input area 6. 指定输入区CD-ROM disc, 1s and 0s are represented by flat areas and bumpy

7. 手写体识别系统handwriting-recognition system 高低不平的) areas (called (字符集character set 8. -ROM disc is read by a laser “pits”) on its bottom surface. The CD that projects a tiny beam of

Unit Two: Computer Architecture light on these areas. The amount of reflected light determines

Unit Two/Section A whether the area represents a 1

.I Fill in the blanks with the information given in the text: or a 0.

1. input; output; storage -is a “readLike a commercial CD found in music stores, a CD-ROM

2. Basic Input/Output System only”disc.

3. flatbed scanners; hand-held scanners Read-only means it cannot be written on or erased by the user.

4. LCD-based Thus, you as a user have

5. dot-matrix printers; inkjet printers 压印) by the publisher. access only to the data imprinted (

6. disk drives; memory ) of data. 兆字节A single CD-ROM disc can store 650 megabytes (

7. volatile That is equivalent to

8. serial; parallel 451 floppy disks. With that much information on a single disc, the

time to retrieve or access

II. Translate the following terms or phrases from English into the information is very important. An important characteristic of

Chinese and vice versa: CD-ROM drives is their

功能键,操作键1. function key access rate.

2. abstract machine 抽象机

IV. Translate the following passage from English into Chinese: 3. program editor 程序编辑程序,程序编辑器

调制解调器是在模拟和数字信号之间进行转换的设备。计算机4. configuration item 配置项

使用的是数字信号,5. 计算机辅助设计CAD (computer-aided design)

表示。模拟信0这种信号由离散单元组成,通常用一系列1和6. 数据冗余data redundancy

号是连续变化的;声波就是模拟信号的一个例子。调制解调器7. 指挥与控制系统command and control system

经常用于实现计算机之间通过电话线的互相通信。调8. 视频压缩与解压缩video compression and decompression

制解调器将发送端计算机的数字信号转换成可通过电话线传输

的模拟信号。信号到达目Unit Three: Computer Language and Programming

Unit Three/Section A 的地后,另外一个调制解调器重构原来的数字信号,供接收端I. Fill in the blanks with the information given in the text: 计算机处理。如果两个调1. artificial; instructions 制解调器可同时互相发送数据,那么它们采用的就是全双工工2. low-level; high-level 作方式;如果一次只有一3. machine 个调制解调器可以发送数据,那么它们采用的则是半双工工作4. machine 方式。

5. functional; logic

6. statement Unit Two/Section B

7. module I. Fill in the blanks with the information given in the text:

8. digital 1. graphical

2. file; scheduler

II. Translate the following terms or phrases from English into 3. virtual

Chinese and vice versa: 4. slice

1. storage register 存储寄存器

2. function statement 函数语句II. Translate the following terms or phrases from English into

3. program statement 程序语句Chinese and vice versa:

4. object-oriented language 面向对象语言中断处理程序1. interrupt handler

5. assembly language 汇编语言

6. intermediate language 中2. virtual memory 虚拟存储(器),虚存,虚拟内存

间语言,中级语言 3. context switch 上下文转换,语境转换7. relational language 关系(型)语言 4. main memory 主存(储器)8. artificial language 人工语言 5. bit pattern 位模式9. data declaration 数据声明 6. 外围设备peripheral device

10. SQL 结构化查询语言进程表process table 7.

11. 可执行程序executable program time slice 8. 时间片12. 程序模块program module 9. 图形用户界面graphical user interface

13. 条件语句conditional statement mass storage 10. 海量存储器14. 赋值语句assignment statement

15. 逻辑语言logic language Unit Two/Section C

16. I. Fill in the blanks with the information given in the text: 机器语言machine language

1. repository 17. 函数式语言functional language

2. central; sub-systems 18. 程序设计语言programming language

3. network

4. layered或abstract machine 19. 运行计算机程序run a computer program

20. 计算机程序员computer programmer

II. Translate the following terms or phrases from English into

Chinese and vice versa: III. Fill in each of the blanks with one of the words given in the

代码生成程序,代码发生器1. code generator following list, making

changes if necessary: 程序设计类简化了程序设计员的工作,带来了更多“可复用A programming language is a language used to write instructions 的”计算机代码。可复用代

for the computer. It lets 码使程序设计员可以使用已经设计、编写和测试的代码。这使the programmer express data processing in a symbolic manner 得程序设计员的工作变得

without regard to 比较容易,并带来更加可靠和高效的程序。

machine-specific details.

The difficulty of writing programs in the machine language of 0s Unit Three/Section B

and 1s led first to the I. Fill in the blanks with the information given in the text:

development of assembly language, which allows programmers to 1. objects

助记符use mnemonics () 2. platform-independent

for instructions and symbols for variables. Such programs are then 3. multithreading

translated by a program 4. runtime

known as an assembler into the binary encoding used by the

computer. Other pieces of system II. Translate the following terms or phrases from English into

) combine software known as linking loaders (连接装入程序Chinese and vice versa:

pieces of assembled code and 1. native code 本机(代)码

load them into the machine's main memory unit, where they are 2. header file 头标文件;页眉文件

then ready for execution. The 3. multithreaded program 多线程程序

concept of linking separate pieces of code was important, since it 4. Java-enabled browser 支持Java的浏览器allowed “libraries”of 5. malicious code 恶意代码 a first step programs to be built up to carry out common tasks—6. 机器码machine code toward the increasingly 7. 汇编码assembly code emphasized notion of software reuse. Assembly language was

8. 特洛伊木马程序Trojan horse 9. 软件包software package found to be sufficiently

10. 类层次class hierarchy inconvenient that higher-level languages (closer to natural

languages) were invented in the 1950s for easier, faster

Unit Three/Section C programming; along with them came the need for compilers,

I. Fill in the blanks with the information given in the text: programs

1. subscript; index that translate high-level language programs into machine code.

2. fixed As programming languages

3. histogram became more powerful and abstract, building efficient compilers

4. two-dimensional that create high-quality code

in terms of execution speed and storage consumption became an

II. Translate the following terms or phrases from English into interesting computer science

Chinese and vice versa: problem in itself.

1. bar chart 条形图

2. frequency array 频率数组IV. Translate the following passage from English into Chinese:

3. graphical representation 图形表示,基于传统的高级语和C++面向对象程序设计语言,如Java

4. multidimensional array 多维数组言,但它们使程序设计

5. 用户视图user('s) view 员能够从合作对象集而非命令列表的角度进行思考。诸如圆之

6. 下标形式subscript form 类的对象具有像圆的半径

7. 一维数组one-dimensional array 一类的属性,以及在计算机屏幕上绘制该对象的命令。一个对

8. 编程结构programming construct 象类可以从其他的对象类继承特征。例如,定义正方形的类可以从定义长方形的类那里Unit Four: Software Development 继承直角等特征。这一套Unit Four/Section A

I. Fill in the blanks with the information given in the text: Compilers collect and reorganize (compile) all the instructions in a

given set of source code to produce object code. Object code is 1. application; operating

often the same as or similar to a computer's 2. assemblers

machine code. If the object code is the same as the machine 3. compiler

language, the computer can run 4. interpreter

the program immediately after the compiler produces its 5. debugger

translation. If the object code is not 6. loop

7. device driver 8. John von Neumann in machine language, other programs—such as assemblers,

binders (联编程序), linkers, and

II. Translate the following terms or phrases from English into loaders (加载程序)—finish the translation.

Chinese and vice versa: Most computer languages use different versions of compilers for

推理机1. inference engine different types of

2. system call 系统调用computers or operating systems, so one language may have

3. compiled language 编译执行的语言different compilers for personal

computers (PC) and Apple Macintosh computers. Many different 4. parallel computing 并行计算

manufacturers often produce 模式匹配5. pattern matching

versions of the same programming language, so compilers for a 6. memory location 存储单元

language may vary between 解释程序7. interpreter program

manufacturers. 8. library routine 库程序,程序库例行程序9. intermediate program 中间程序,过渡程序IV. Translate the following passage from English into Chinese: 源文件10. source file

在软件中,错误是指导致程序发生故障或产生不正确结果的编11. 解释执行的语言interpreted language

码或逻辑错误。较轻device driver 12. 设备驱动程序微的错误,如光标表现异常,会造成不便或带来挫折,但不会源程序13. source program

对信息产生破坏性影响。调试程序14. debugging program

较严重的错误会导致程序“中止”(对命令停止反应),可能15. object code 目标代码使用户别无选择,只能重新16. 应用程序application program

启动程序,结果致使任何前面已经做好但尚未保存的工作丢实用程序17. utility program

失。两种情况无论是哪一种,逻辑程序18. logic program

程序员都必须凭借称为调试的过程,发现并改正错误。由于错墨盒19. ink cartridge

误对重要数据的潜在危险,20. 程序的存储与执行program storage and execution

商用应用程序在发行前要经过尽可能全面的测试与调试。程序

发行后发现的较轻微错误III. Fill in each of the blanks with one of the words given in the

在下一次更新时改正;较严重的错误有时可用称为补丁的特殊following list, making

软件加以修补,以规避问changes if necessary:

题或减轻其影响。 A compiler, in computer science, is a computer program that

translates source code into

Unit Four/Section B object code. Software engineers write source code using high-I. Fill in the blanks with the information given in the text: level programming languages

1. Machine that people can understand. Computers cannot directly execute

2. developers; components source code, but need a

3. CORBA compiler to translate these instructions into a low-level language

4. runtime called machine code.

II. Translate the following terms or phrases from English into 2. unit testing 单位(或单元、部件)测试

Chinese and vice versa: 3. software life cycle 软件生命周期(或生存周期)

消息接发模型1. messaging model 4. system validation testing 系统验证测试

3. 2. common language runtime 通用语言运行时刻(环境)5. evolutionary development process 演化开发过程hierarchical namespace 分层名称空间6. simple linear model 简单线性模型

4. development community 开发界7. program unit 程序单元

5. CORBA 公用对象请求代理(程序)体系结构8. throwaway prototype 抛弃式原型

基本组件base component 6. 9. text formatting 正文格式编排,文本格式化

元数据标记7. metadata tag 10. system evolution 系统演变

virtual machine 8. 虚拟机11. 系统设计范例system design paradigm

)(integrated development environment 集成开发环境9. IDE12. 需求分析与定义requirements analysis and definition

SOAP(Simple Object Access Protocol)简单对象访问协议10. exploratory programming approach 13. 探索式编程方法system documentation 14. 系统文件编制Unit Four/Section C 瀑布模型waterfall model 15.

I. Fill in the blanks with the information given in the text: 系统集成system integration 16.

1. heterogeneous 或COTS) software 17. 商用现成软件commercial off-the-shelf (

2. asynchronous

component-based software 18. 基于组件的软件工程3. bridges engineering (CBSE) 4. openness software maintenance tool 19. 软件维护工具software reuse 20. 软件复用II. Translate the following terms or phrases from English into Chinese and vice versa: III. Fill in each of the blanks with one of the words given in the 1. procedure call 过程调用following list, making changes if necessary: 容错2. fault tolerance There are three different types of software maintenance. Firstly,

同构系统3. homogeneous system there is maintenance to

4. autonomous agent 自主主体repair software faults. Coding errors are usually relatively cheap

routing algorithm 路由算法5. to correct; design errors are

heterogeneous environment 异构型环境6. more expensive as they may involve rewriting several program

多址通信协议7. multicast protocol components. Requirements

通信链路8. communication(s) link errors are the most expensive to repair because of the extensive

system redesign that may be

Unit Five: Software Process necessary. Secondly, there is maintenance to adapt the software

Unit Five/Section A to a different operating

I. Fill in the blanks with the information given in the text: environment. This type of maintenance is required when some

1. off-the-shelf

2. exclusive aspect of the system's

3. cascade environment such as the hardware, the platform operating

4. requirements; integration system or other support software

5. throwaway changes. The application system must be modified to adapt it to

6. immediate; stable cope with these environmental

7. reuse-oriented; framework changes. And thirdly, there is maintenance to add to or modify the

8. software; compromises system's functionality.

This type of maintenance is necessary when the system

II. Translate the following terms or phrases from English into requirements change in response to

Chinese and vice versa: organizational or business change. The scale of the changes

1. system specification 系统规格说明required to the software is often

much greater than for the other types of maintenance. In 7. 模型驱动开发model-driven development

practice, there isn't a clear-cut 8. 数据流程图data flow diagram

distinction between these types of maintenance. When you 9. 下拉式菜单drop-down (或pull-down) menu

adapt the system to a new 10. 滚动条scroll bar

environment, you may add functionality to take advantage of new

environmental features. Unit Five/Section C

Software faults are often exposed because users use the system I. Fill in the blanks with the information given in the text: in unanticipated ways. 1. problem

Changing the system to accommodate their way of working is the 2. consequences

best way to fix these faults. 3. design

4. specific; general

IV. Translate the following passage from English into Chinese:

软件过程比较复杂,而且像所有其他的智能和创造性过程一II. Translate the following terms or phrases from English into 样,依靠人们作出决定Chinese and vice versa:

和判断。由于需要判断和创造性,使软件过程自动化的尝试只1. procedural language 过程语言

取得了有限的成功。计算2. common design structure 通用设计结构

机辅助软件工程工具可支持软件过程的某些活动。然而,至少3. class and object interaction 类与对象交互4. design 是在未来几年内,不可能constraint 设计约束

实现更广泛的软件过程自动化,使软件能够接替参与软件过程5. 设计模式design pattern

的工程师来从事创造性设6. 可复用软件reusable software

计。7. 面向对象的系统object-oriented system

计算机辅助软件工程工具的有效性有限,原因之一是软件过程8. 继承层次inheritance hierarchy

多种多样。不存在理

想的过程,而且许多组织机构发展了自己的软件开发方法。这Unit Six: Database

Unit Six/Section A 些软件过程不断演变,以I. Fill in the blanks with the information given in the text: 利用组织机构中的人员的能力和开发中的系统的具体特点。对1. flat 于一些系统来说,需要的2. data 是一个高度结构化的开发过程,而对于另外一些系统来说,一3. application; administrators 个灵活敏捷的过程很可能4. conceptual 更为有效。

5. tables Unit Five/Section B

6. fragmented; replicated I. Fill in the blanks with the information given in the text:

7. structured 1. entity

8. entity-relationship; attributes 2. duration 或process; data 3. data; processII. Translate the following terms or phrases from English into 4. implemented Chinese and vice versa: 1. end user 最终用户,终端用户II. Translate the following terms or phrases from English into

2. atomic operation 原子操作Chinese and vice versa:

3. database administrator 数据库管理员 1. check box 复选框,选择框,校验框

4. relational database model 关系数据库模型结构化设计2. structured design

5. local data 本地数据积木块,构建模块,构件3. building block

6. object-oriented database 面向对象数据库数据库模式4. database schema

7. database management system (DBMS) 数据库管理系统单选(按)钮5. radio button

实体关系模型8. entity-relationship model (ERM) system modeling technique 系统建模技术6.

9. distributed database 分布式数据库录的特定属性)。在进行搜索时,关系数据库将一个表中的一个字段的信息与另一个表10. flat file 平面文件

中的一个相应字段的信息进行匹配,以生成将来自这两个表的数据属性data attribute 11. 二维表two-dimensional table 12.

所要求数据结合起来的另13. 数据库对象database object

一个表。例如,如果一个表包含storage device EMPLOYEE-ID、LAST-NAME、14. 存储设备FIRST-NAME和15. 数据类型data type HIRE-DATE字段,另一个表包含DEPT、EMPLOYEE-ID data insertion and deletion 数据插入与删除和SALARY字段,关系数据库16.

可匹配这两个表中的EMPLOYEE-ID17. 层次数据库模型hierarchical database model 字段,以找到特定的信息,如所有挣到一定薪水的database architecture 18. 数据库体系结构雇员的姓名或所有在某个日期之后受雇的雇员所属的部门。换19. 关系数据库管理系统relational database management

计算机英语第三版课文翻译

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