计算机专业英语试题及答案(B)

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computer; __________________and______________. There are different high-level programming languages. Fortunately, most of them have many kinds of construct in common and vary only 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.

Passage A

The central processing unit(CUP) 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 most 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, which its speed and capacity have increased tremendously. Indeed, these changes have resulted in micro-Computers that are small enough to fit on your desk and your lap.

The CPU comprise the control unit and the arithmetic/logic unit (ALU).

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The control unit is responsible for directing and coordinating most of the computer systems activities. 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 does comparison. 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.

(二) 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) 1. With the development of computer, the physical size of the CPU has often ( )

2. The movement of electronic signals between main memory and the ALU as well as the control signal between the CPU and input/output

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become bigger and bigger.

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devices are controlled by the control unit of the CPU. ( ) 3.

The

CPU

comprises

the

control

unit

and

memory.

( )

4. The control unit performs all the arithmetic and logical functions. ( )

5. The central processing unit (CPU) is the heart of the computer systems. ( )

要求：明确标注每小题或每步骤得分点

一. Give out the full names for the following abbreviations(写出下列缩写词的全称)（15%） ( 本题共15分, 每小题1.5分) WAN: Wide Area Network

HTTP: Hypertext Transport Protocol NT: Net Technology CEO: Chief Executive Officer

DBMS: Database Management Systems ISP: Internet Service Provider XML: eXtensible Markup language BIOS: Basic Input/Output Unit

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IT: Information Technology WWW: World Wide Web

二. Match the following words and expressions in the left column with those similar in meaning in the right column(将左列的词汇与右列相应的汉语匹配)（10%） ( 本题共10分, 每小题1分)

1. （ d ） 6. （ e ） 2. （ c ） 7. （ h ） 3. （ b ） 8. （ j ） 4. （ f ） 9. （ g ） 5. （ a ） 10.（ i ）

三. Translate the following phrases into English(将下列短语翻译成英语)（10%） ( 本题共10分, 每小题2分) 1. high-speed printer 2. Random Access Memory 3. software reliability 4. service-oriented 5. optical disk driver

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