专业英语II(软件工程)B卷_08软件工程

广东商学院试题纸

_2010-2011__学年第__2__学期考试时间共 100 分钟

课程名称专业英语II(软件工程)（B卷）课程代码111031_ 课程班号08软工1,2共2页

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一、Translate the following words and expressions（20分）

(1) digital forensic (2) trial-period (3) back end (4) worm (5) e-commerce (6) 密码(7) 浮点(8) 指纹(9) 分辨率(10) 文件夹

二、Cloze（16分）

program interfacee system user storage classify unauthorized control

document efficiently function detect internal security password input Operating systems for micro, mini, and mainframe computers perform many services. These services can be ___(1)___ either as “external” or “internal.” The operating system provides external services that help ___(2)____ start programs, manage stored data, and maintain ___(3)_____. You, as the computer user, control these external ___(4)____. Using a command-line, menu-driven, or GUI user ___(5)_____, an operating system provides you with a way to select the ___(6)_____ you would like to use. The operating system also helps you find, rename, and delete ___(7)_____ and other data stored on disk or tape. On many, but not all computer ___(8)____, the operating system helps you maintain security by checking your user ID and ___(9)_____, as well as protecting your data from ___(10)_____access and revisions.

The operating system provides ___(11)_____ services “behind the scenes” to ensure that the computer system functions ___(12)_____. These internal services are not generally under your ___(13)_____, but instead are controlled by the operating system itself. The operating system controls ___(14)_____ and output, allocates system resources, manages the ___(15)_____ space for programs and data, and ___(16)_____ equipment failure without any direction from you.

三、Translate the following paragraph into Chinese (44分)

1、

A fundamental design guideline is "Make simple things easy, and difficult things possible."

The original design goal of the graphical user interface (GUI) library in Java 1.0 was to allow the programmer to build a GUI that looks good on all platforms. That goal was not achieved. Instead, the Java 1.0 Abstract Windowing Toolkit (AWT) produced a GUI that looked equally mediocre on all systems. In addition, it was restrictive; you could use only four fonts and you couldn’t access any of the more sophisticated GUI elements that exist in your operating system. The Java 1.0 AWT programming model was also awkward and non-object-oriented. A student in one of my seminars (who had been at Sun during the creation of Java) explained why: The original AWT had been conceived, designed, and implemented in a month. Certainly a marvel of productivity, and also an object lesson in why design is important.

2、

One way that object-oriented languages allow generalization is through polymorphism. You can write (for example) a method that takes a base class object as an argument, and then use that method with any class derived

from that base class. Now your method is a little more general and can be used in more places. The same is true within classes—anyplace you use a specific type, a base type provides more flexibility. Of course, anything but a final class can be extended, so this flexibility is automatic much of the time.

Sometimes, being constrained to a single hierarchy is too limiting. If a method argument is an interface instead of a class, the limitations are loosened to include anything that implements the interface—including classes that haven’t been created yet. This gives the client programmer the option of implementing an interface in order to conform to your class or method. So interfaces allow you to cut across class hierarchies, as long as you have the option to create a new class in order to do so.

3、

The largest category of computer criminals consists of those with the easiest access to computers-namely, employees. Sometimes the employee is simply trying to steal something from the employer-equipment, software, electronic funds, proprietary information, or computer time. Sometimes the employee may be acting out of resentment and is trying to “get back” at the company.

Not only employees but also some suppliers or clients may have access to a company’s computer system. Examples are bank customers who use an automatic teller machine. Like employees, these authorized users may obtain confidential passwords or find other ways of committing computer crimes.

Organized crime has discovered that computers can be just like legitimate business people use them, but for illegal purposes. For example, computers are useful for keeping track of stolen goods or illegal gambling debts. In addition, counterfeiters and forgers use microcomputers and printers to produce sophisticated-looking documents such as checks and driver’s licenses.

四、Writing（20分）

Describe something about computer virus. Write them down with no less than 100 words.