广州开放大学计算机专业英语复习题答卷

1、复习题试卷总分:520 得分:96.2The decision making is based on information.答案:正确Data warehouse is a single source of information to understand different subjects.答案:正确Data warehouse only contains current information.答案:错误A computer virus is also a computer program.答案:正确New antivirus software is always more effe

2、ctive in defending virus attack.答案:Worm virus such as Blaster can cause a lot of computers to crash.答案:正确The web server software flaws can be used by hackers.答案:正确The first step to prevent attack is to install a firewall.答案:错误Firewalls always require high hardware configurations.答案:错误阅读理解一、Fill in t

3、he blanks with suitable words or expressions from the list given below, and change the form where necessary. （从下面方框中选择合适的词或表达，以其适当的形式填空。）high-level language? assembly language ?written machine language notation ? ? A programming language, designed to facilitate the communication between human and co

4、mputers, is a _ for describing computation in readable form. There are 3 levels of programming languages, they are _ , which can be run directly by computer; _ and _ . There are different high-level programming languages. Fortunately, most of them have many kinds of construct in common and vary only

5、 in the way that these must be _ . Therefore, first thing to be decided about a task is to choose which programming language is best suited for the job.答案:、complex arithmetic / logic unit (ALU) add control unit heart ? ? The central processing unit (CPU) is the _ of the computer systems. It is the m

6、ost _ computer system component, responsible for directing most of the computer system activities based on the instructions provided. The CPU comprisesthe _ and the _ . The control unit is responsible for directing and coordinating most of the computer systems activities. The ALU performs all the ar

7、ithmetic and logical (comparison) functions that is, it _ , subtracts, multiplies, divides, and does comparisons.答案:、toolbar ruler title bar menu bar incorporate into ? ? Microsoft Word XP is the current Window version of Word, and documents created in Word XP can be easily _ Excel, Power Point and

8、Access files. In the interface of Word, the _ displays the name of the current application and name of the current document; the _ lists the names of the menus available; the _ gives the user quick access to frequently used editing functions; the _ enables the user to change left and right margin.答案

9、:requirements maintain disciplined coding modify ? ? Software Engineering, which means the application of engineering to software, is a method to develop, operate and _ software. That is, the development of software is on a systematic, _ , quantitive basis. Before starting the development of softwar

10、e, you have to systematically approach the problem. You have to understand the _ (what the software is supposed to do), carry out the design, do the _ , carry out a rigorous testing and if the software is as per the requirements, release the software to the customer. Subsequently, if the customer wa

11、nts some changes-refinements or enhancements then the software has to be _ .答案:二根据上文的内容判断下列句子的正误The central processing unit (CPU) is the heart of the computer systems. Among other things, its configuration determines whether a computer is fast or slow in relation to other computers. The CPU is the m

12、ost complex computer system component, responsible for directing most of the computer system activities based on the instructions provided. As one computer generation has evolved to the next, the physical size of the CPU has often become smaller and smaller, while its speed and capacity have increas

13、ed tremendously. Indeed, these changes have resulted in microcomputers that are small enough to fit on your desk or your lap.The CPU comprises the control unit and the arithmetic / logic unit (ALU).The control unit is responsible for directing and coordinating most of the computer systems activities

14、. It determines the movement of electronic signals between main memory and the arithmetic/logic unit, as well as the control signals between the CPU and input/output devices.The ALU performs all the arithmetic and logical (comparison) functions that is, it adds, subtracts, multiplies, divides, and d

15、oes comparisons. These comparisons, which are basically “less than”, “greater than”, and “equal to”, can be combined into several common expressions, such as “greater than or equal to”. The objective of most instructions that use comparisons is to determine which instruction should be executed next.

16、?Tell whether the following statements are true(T) or false(F) according to the passage A.（根据上文的内容判断下列句子的正误）With the development of computer, the physical size of the CPU has often become bigger and bigger. 1The movement of electronic signals between main memory and the ALU as well as the control si

17、gnal between the CPU and input /output devices are controlled by the control unit of the CPU. 2The CPU comprises the control unit and memory. 3The control unit performs all the arithmetic and logical (comparison) functions. 4The central processing unit (CPU) is the heart of the computer systems. 5(1

18、)._1_TF答案:B(2)._2_TF答案:A(3)._3_TF答案:B(4)._4_TF答案:B(5)._5_TF答案:A6.For a Web user, the home page is the first Web page that is displayed after starting a Web browser like Netscapes Navigator or Microsofts Internet Explorer. The browser is usually preset(预置) so that the home page is the first page of t

19、he browser manufacturer. However, you can set it to open to any Web site. For example, you can specify (指定)that http:/www. yahoo. com or http:/www. whatis. com be your home page. You can also specify that there be no home page (a blank space will be displayed) in which case you choose the first page

20、 from your bookmark list or enter a Web address.For a Web site developer, a home page is the first page presented when a user selects a site on the World Wide Web. The usual address for a Web site is the home page address, although you can enter the address (Uniform Resource Locator) of any page and

21、 have that page sent to you.?Tell whether the following statements are true(T) or false(F) according to the passage A.（根据上文的内容判断下列句子的正误）Home pages for a Web user or a Web site developer have the same meanings. 12.The home page displayed on a Web browser is usually preset by the browser manufacturer.

22、 23.The home page for a Web user can be reset to any Web site you prefer. 34.You have to enter or select Web addresses every time with a blank space on your Web browser. 45.Web addresses usually lead to relative home pages. 5(1)._1_TF答案:B(2)._2_TF答案:A(3)._3_TF答案:A(4)._4_TF答案:A(5)._5_TF答案:A7.Personal

23、 computer software is based on specific operating systems and machines. The famous PC operating systems are DOS, Windows, OS/2, Unix, Linux, Mac OS.DOS (Disk Operating System) was the most popular operating system for IBM and IBM-compatible 16 bit personal computers. DOS is no longer widely used bec

24、ause it has a number of limitations.Microsoft built Windows as an extension of the widely installed DOS operating system. Windows provides not only a graphical user interface (GUI), but also memory management and multitasking capabilities.Unix is an interactive, multi-user, multitasking operating sy

25、stem that is highly supportive of communications and networking. At present, Unix is primarily used for workstations, minicomputers, and server computers in multi-user environments.Linux is the free Unix. It has all of the features you would expect of a modern, fully fledged Unix: true multitasking,

26、 virtual memory, shared libraries, demand loading, shared, proper memory management and TCP/IP networking.Mac OS (Machintosh Operating System) supports multitasking and networking and has a highly praised graphical user interface. Multimedia capabilities of this operating system allow Macintosh user

27、s to integrate video clip, stereo sound, and animated sequences with conventional text and graphics software.?Tell whether the following statements are true(T) or false(F) according to the passage A.（根据上文的内容判断下列句子的正误）Personal computer software is dependent on specific operating systems and machines.

28、 12.DOS can only work with 32-bit microprocessor. 23.Windows is the 32-bit operating system with networking capability and Internet access. 34.Unix is an interactive, multi-user, multitasking operating system. 45.The Linux operating system is free. It is the modified version of Unix running on PCs.

29、5(1)._1_TF答案:A(2)._2_TF答案:B(3)._3_TF答案:A(4)._4_TF答案:A(5)._5_TF答案:A8.During initial days of computing, software was largely developed by small groups of people.When this software was to be maintained by another set of people, it used to be a nightmarish experience. When large commercial projects were

30、 to be handled, it used to be an almost impossible task to keep the time and budget under control, and projects used to get delayed and many projects were abandoned halfway. There was no systematic procedure for the software development; everything was done on ad hoc basis. This ad hoc approach led

31、to the software crisis.Over the last few decades there has been a tremendous growth in information technology and its impact on everyday life. Complex software systems have become critical to the operation of many systems in areas such as banking, communications, manufacturing, power generation, and

32、 transportation. Progress in computer science and accumulated experience with industrial production of software have led to the emergence of software engineering as a separate discipline. The software engineering discipline has been defined as the application of systematic, disciplined, quantifiable

33、 approaches to the development, operation, and maintenance of software. that is, the application of engineering to software .The computer science discipline concerns with developing large applications. Software engineering covers not only the technical aspects of building software systems, but also

34、management issues, such as directing programming teams, scheduling, and budgeting.For developing a software product, the development process is divided into different stages. A convenient way of splitting the whole process is to divide the development into the following five stages:Requirements Anal

35、ysis & Specification: define the system requirements in detailDesign: specify system architecture and modules in detailCoding: produce source codeTesting: deal with unit testing and system testingMaintenance: fix bugs, enhance features and adapt across platforms?Tell whether the following statements

36、 are true(T) or false(F) according to the passage A.（根据上文的内容判断下列句子的正误）During initial days of the development of software, everything was done in discipline. 12.The definition of software engineering is the application of systematic, disciplined, quantifiable approaches to the development, operation,

37、 and maintenance of software. 23.For developing a software product, you need design, coding and testing. 34.software engineering is the application of engineering to software. 45.Software engineering only covers the technical aspects of building software systems. 5(1)._1_TF答案:B(2)._2_TF答案:A(3)._3_TF

38、答案:B(4)._4_TF答案:A(5)._5_TF答案:B9.Microsoft Word, known as Word, is a very powerful Windows word-processing package. It is a member of Microsoft office. Word offers many features, including desktop publishing and access to the World Wide Web. Because Word is part of the Microsoft Office, documents cre

39、ated in Word can be easily incorporated into Excel, PowerPoint and Access files. Word has several editions: Word 97, Word 2000 and Word XP. Microsoft Word XP is the current Windows version of this word processor. The following figure is the introduction of Word XP.?图Fig.1 The interface of Word XP?Ti

40、tle bar displays the name of the current application and name of the current document.?Menu bar lists the names of the menus available.?Standard toolbar gives you quick access to frequently used editing functions. Names of buttons are displayed when the mouse rested over them.?Scroll bars used to mo

41、ve through a document vertical and horizontal.?Ruler enables you to change left and right margins and to set or remove tab stops.?Text area where you can edit your document.?Status bar displays current document information.?Tell whether the following statements are true(T) or false(F) according to t

42、he passage A.（根据上文的内容判断下列句子的正误）Microsoft Word XP is a member of Microsoft office 2000. 12.Word doesnt have the feature to accessing to World Wide Web. 23.Documents created in Word are hard to be incorporated into Powerpoint. 34.Title bar displays the names of the application and document. 45.In the

43、text area, you can edit your document. 5(1)._1_TF答案:B(2)._2_TF答案:B(3)._3_TF答案:B(4)._4_TF答案:A(5)._5_TF答案:A三、根据上文的内容选择正确的答案。10.Natural languages are designed to facilitate the communication between humans. Programming languages are designed to facilitate the communication between human and computers.

44、A programming language is a notation for describing computation in computer-readable and human-readable form.A programming language represents a special vocabulary and a set of grammatical rules for instructing a computer to perform specific tasks. Broadly speaking, it consists of a set of statement

45、s or expressions understandable to both people and computers. People understand these instructions because they use human (English and mathematical) expressions. Computers, in the other hand, process these instructions through use of special programs, which, known as compiler, decode the instruction

46、s from people and create machine-language coding.Just like we have many different languages in use throughout the world for us humans to communicate with, there are different languages that we use to communicate with a computer . There are three levels of programming languages:Machine languageAssemb

47、ly languageHigh-level language?choose the best answer according to the passage.(根据上文的内容选择正确的答案。)Programming languages are designed to facilitate the communication between human and . 1computerspeoplehardwaresoftware2.A programming language is a notation for describing computation which can be unders

48、tand by both 2 .computer and machinehuman and softwarecomputer and humansoftware and hardware3.Computers understand the programming language through 3 , which translate the programming language into machine-language that computer can understand.assembly languagecompilermachine languagehigh-level lan

49、guage4.The following are the three levels of the programming language except . 4machine languageassembly languagehigh-level languagecompiler5.which of the following language can be directly understood by computer? 5machine languageassembly languagehigh-level languagecompiler(1)._1_ABCD答案:A(2)._2_ABC

50、D答案:C(3)._3_ABCD答案:B(4)._4_ABCD答案:B(5)._5_ABCD答案:A11.In order to solve a computational problem, its solution must be specified in terms of a sequence of computational steps, each of which may be performed by a human or a digital computer . If you want to solve the computational problem with a comput

51、er, you should learn how to program. The task of developing programs for the solution of computational problems is referred to as programming. Computer programming is the process of planning and creating a sequence of steps for a computer to follow. In general, this process will help us resolve a pr

52、oblem, which is either too tedious or difficult to work out otherwise . So programming is breaking a task down into small steps.Programming is sometimes contrasted with coding. Coding generally refers to the writing of programs for given program specification, while programming includes the task of

53、preparing the program specification as well as that of writing the program. The text of a program is sometimes referred to as code, and lines of program text are referred to as lines of code, especially in the case of machine-language programs. The term coder is used to describe a person engaged exc

54、lusively in implementing program specifications prepared by others.Whats actually involved in programming - the actual process of writing programs? Heres a quick overview of the process: Write a program. Compile the program. Run the program. Debug the program. Repeat the whole process until the prog

55、ram is finished.?choose the best answer according to the passage .(根据上文的内容选择正确的答案。)1If you want to solve the computational problem with a computer, you should learn how to . 1calculateprogramaddsubtractComputer programming is the process of planning and creating a sequence of 2 for a computer to fol

56、low.stepsprocesslinesgraphics3. The term coder is used to describe 3 .machinecomputerkeyboardperson4. In order to solve a computational problem, you can let a person or a 4 to do it.machinecomputerkeyboardmouse5. Which of the following is not the stages of programming? 5Write a program.Debug the pro

57、gram.Print the program.Compile the program.(1)._1_ABCD答案:B(2)._2_ABCD答案:A(3)._3_ABCD答案:D(4)._4_ABCD答案:B(5)._5_ABCD答案:C12.?A computer virus is a computer program that is created to make and spread copies of itself. The program may however also be designed to have other effects on the systems it infec

58、ts, ranging from the annoying to the disastrous.?Virus attacks are growing rapidly these days. According to BusinessWeek, the 76,404 attacks reported in the first half of 2003 nearly match previous years total number . As new antivirus tools are more powerful than before, the virus writers are getti

59、ng a lot smarter with newer and creative ways to attack network systems. Lets first examine some common virus types:?Basic Virus - a piece of software code that is developed to attack computers and network systems via email or Internet connections. It quickly replicates itself and gradually attaches

60、 to files, programs or the hard drive.?Trojan Horses - This is a program that doesnt replicate when entering a system but can be effectively used to open back doors. Trojan Horses allow hackers to take control over a particular system or to steal very important data.?Worm - this type of virus is abl