专业英语复习题

科技英语考试范围及其复习资料句子翻译有什么错误可以给我发消息，阅读理解做好了的，答案发给我哈。

复习题：Translation.（翻译）★sentence:(句子翻译考试20个从中选六个)1.Data is a collection of un-oragnized facts which can include woeds numbers images and sounds. 数据收集的是无组织的事实，它可以包括文字，数字，图像和声音的。

2.A computer cinsists of a variety of hardware components that work together with softw are to （没来得及抄完呀，谁抄好了这条给我发扣扣）3.There hardware components include input devices,output devices a system unit storage and communication devices.有硬件部件包括输入设备，输出设备系统单元的存储和通信设备4.An input device allows a user to enter and commands into the memory of a computer.一种输入设备允许用户输入和命令向计算机存储。

5.Storage differs from memory,which can hold these items permanently whereas memory holds these memory holds items only temporanrily.外存和内存不一样，它可以支持永久存储，然而内存只暂时存储数据。

6.A hard disk provides mush grester storage capacity than a floppy disk.硬盘能提供比软盘更大的存储容量。

7.Four cornmon storage devices are floppy disk drive a hars disk dive a CD-ROW drive and a DVD-ROW drive.四种常用的存储设备有软盘驱动器，CD-ROW驱动器，DVD驱动器。

8.The central processing unit(CPU),sometimes referred to as the processor.interprets and carries out(perform) the basic instrucitions that operate a computer中央处理单元，有时候它也被称为处理器，解释和执行操作计算机的基本指令。

9.In the system unit,a computer’s memory stores data instructions and information.在系统单元中，就是那几存储可以存储数据、指令、信息。

10.Rom(Read-only Memory)is a memory chip that only can be read and used;that is,it cannot be modifiedR读存储是一种只能用来读，不能修改的存储芯片。

11. Four commonly used input devices are the keyboard the mouse .a mocrophone and pc camera. 四种常用的输入设备包括键盘、麦克风、PC相机和鼠标。

12.An optical scanner reads printed text and graphics and then translates the results into a form computer can use.光学扫描仪读入印刷文本和图形，然后将其翻译成计算机能使用的形式13.Reasolution ypically is measured in dots per inch,and is stated.as the number of columns and rows of dots分辨率通常是由每英寸的像点数来衡量，并以行数与列数说明。

14.Output is datathat has been processed into useful from called information.that is a computer processes intput into output.输出是被处理成有用信息形成的一种数据。

计算机可以将输入处理或者输出。

15.To store such sounds, a computer converts the sounds from a continuous analong signal into a digital format.为了存储声音，计算机将其模拟信号转换成数字格式。

16.An output device is any computer component capable of conveying (传送)information to a user.一种输出设备是一种将有用的信息传送给用户的计算机控件。

17.Display devices include CRT monitors,flat-panel displays.显示器包括CRT显示器、平板显示器。

18.Color monitors are used widely with all types of computers because most of today’s software is designed to display in for mation in color.彩色显示器被广泛用于所有类型的计算机，因为今天的大多数软件是用来显示信息的颜色。

19.Each dot, called a pixel, is a single point in an electronic image每个点称为像素点，是电子图像中单一的点。

20.This cycle of intput,process,output,and storage is called information processing cycle.这个输入处理输出存储的循环被称为信息处理循环。

★Paragraph（段落翻译从五个中选一个）1.A high-level language is an artificial language with which we can write various instructions. This is possible not because computer processors are now so technologically advanced that they can ‘understand’ these languages. You should translate from programming languages into machine language which can be understood by the computer processors. Compilers can accomplish this task. This does mean that ahigh-level language program is not directly executable: it must be compiled to produce processor program, which is executable.2.A stack organized in a contiguous block of memory cells exhibits little difference between the conceptual structure and the actual structure in main memory. Suppose, however, that we cannot reserve a fixed block of memory and be assured that the stack will always fit. A solution is to implement the stack as a linked structure similar to that of alist. This avoids the limitations of restricting the stack to a fixed-size block, since it allows the entries in the stack to be stuffed into small pieces of available space anywhere in memory. In such a situation, the conceptual stack structure will be quite different from the actual arrangement of the data in memory.3.As we observed in the case of lists, a programmer would probably find it advantageous to write procedures that perform these push and pop operations so that the stack could be used as an abstract tool. Note that these procedures should handle such special cases as attempts to pop entries from an empty stack and to push entries onto a full stack. In particular, a complete stack system would probably contain procedures for pushing entries, popping entries, testing for an empty stack, and testing for a full stack.4.Once again, we should recognize the difference between the conceptual structure envisioned by the user of a queue and the actual cyclic structure implemented in the machine's memory. As in the case of the previous structures, these differences are normally bridged by software. That is along with the collection of memory cells used for data storage, a queue implementation should include a collection of procedures that insert and remove entries from the queue as well as detect whether the queue is empty or full.我们应该再次认识到队列使用者使用的概念结构与实际在计算机存储器中实现的循环结构之间的差异。