计算机专业英语Unit 3.doc

Unit 3 Text 11.Match each of the words or phrases with their Chinese meaning.disk 磁盘modem 调制解调器driver 驱动器printer 打印机display 显示器mouse 鼠标keyboard 键盘computer 计算机2.Fill a correct word learned in this text in each of the blanks.(1) The display of the computer is also called_.Screen (2) The function of a _ is to print the information or data on a piece of paper.printer(3) The keyboard is one of the _devices.input(4) A modem plays an important role when you want to use the _.internet3. Translation. (1) 我是一个操作员。I am a computer programmer.(2) 什么是电子计算机？What is a electronic computer?(3) 我有一个键盘。I have a keyboard(4) It costs me 4000 Yuan to buy a computer. 买一台电脑需要花费我4000元人民币。(5) I am now finding a file that was deleted by mistake.我正在找一个不小心被我误删的文件。(6) There was some problems with my mouse. Maybe its not clean.我的鼠标器有点问题，也许是它不干净了。Reading material Read the above passages carefully and answer the questions.(1) According to passage A, why cant A find his file?Because he can not remember where his file was saved.(2) To find As file, what is necessary?The name of the file.(3) How can A find his file that he cant find?A can use the “find” function on the “begin” menu.(4) According to passage B, what is energy saver mode?It is a mode in which it turns off the monitor if the processor hasnt received any input for a certain period of time.Text 21. Fill a correct word in each of the blanks.(1) A computer system includes _ and software.hardware(2) Software refers to _.programs(3) A mouse is a(n) _device.input(4) A program consists of many _.instructions(5) Disk Operating System is also called _by computer users.DOS(6) A keyboard is mainly made up of _ functional groups.three(7) There are also three important special functional keys on the keyboard. They are _, _, _.Escape ,Control, Alternate2. Choose the best answer for each of the blanks.Password (密码) is a(n) 1 series of characters that enables a user 2 a file, computer or program. On multi-user systems, 3 user must enter his or her password 4 the computer will respond to commands. The password helps ensure that unauthorized (未授权的) users do not access the computer. In addition, data files and programs may require a password.Ideally, the password should be something 5 could guess. In practice, most people choose a password that is 6 to remember, such as their name or their initials (首字母). This is one reason it is relatively easy to break 7 most computer system.(1) A. obviousB. secretC. importantD. easy(2) A. accessB. accessingC. accessedD. to access(3) A. eachB. allC. someD. any(4) A. afterB. whenC. whileD. before(5) A. everyoneB. everybodyC. nobodyD. most people(6) A. hardB. easyC. easeD. difficult(7) A. intoB. upC. toD. in答案：BAADCBAReading material After reading these passages, answer the following questions.(1) How much RAM should you have at least if you want to run Windows 2003 smoothly?256MB(2) What is the result if your RAM is too little?The computer becomes very slow.(3) In Passage B, how can A speed up his internet connection?Change his modem.(4) In Passage C, why cant As mouse work properly?It is a little dirty.Text three1. Match each of the words with their correct Chinese meanings.mainframe 大型机 desktop 台式电脑command 命令 workstation 工作站 synonym 同义词 multi-user 多用户 parallel 平行的multi-functional 多功能的 laptop 膝上型电脑2. Decide whether the following statements are True or False.(1) A computer is a multi-functional electronic data processing machine and is made up of electronic components. (T) (2) The computer can do nothing without a program. (T) (3) A microcomputer, also called personal computer, is a computer designed for an individual. (T) (4) According to computers power and size, we have desktop, laptop and handheld PCs.( F )(5) In its more general usage, a personal computer is a computer designed for using by one person at a time. (F ) (6) Computers can be classified into microcomputer, mainframe and supercomputer by its program. ( F ) (7) Workstation is a multi-user computer capable of supporting many hundreds or thousands of users simultaneously. (T) 3. Fill in the blanks with suitable words.(1) _ are electronic machines that is made up of electronic components and can be programmed to do a number of different puters(2) Information can be _ into the computer through input device by people.input(3) _ are designed to process very complex scientific applications.supercomputers(4) The computer must be given _, which tell it how to handle information or grams(5) Data flow from the computer as _.outputReading material Choose the best answer for each of the blanks according to the passage.(1) Small as it is, a personal computer can perform the same program instructions as ( ).A. larger computers B. human beings C. typewriter D. printers(2) Hardware components are used for the purpose of ( ).A. input B. output C. central processing D. all of the above(3) The largest and fastest computers are ( ).A. mainframe computers B. supercomputers C. hand-held PCs D. workstations(4) All computers can perform basic machine operations under the control of ( ).A. instructions B. commands C. operations D. programs(5) The larger the system of the computer, the greater its ( ).A. processing speed B. storage capacity C. both A and B D. neither A nor B 1-5 ADBDB Text four 1. Decide whether the following statements are True or False.(1) The idea of binary arithmetic, random access and stored programs are still in use in today. ( )T (2) The introduction of ENIAC-vacuum tubes meant the start of the second generation of computers. ( )F (3) Portable radios signaled the start of the second generation of computer. ( )F (4) The integrated circuit was an important technological breakthrough in electronics for the third generation of computer. ( )T (5) The fourth generation began with the introduction of LSI in the early 1970s. ( )T (6) The microprocessor is also considered as the most important symbol for the fourth generation. ( )T 1-6 TFFTTT2. Match the words or phrases with their Chinese meanings.binary 二进制 transistor 晶体管 integrated circuit 集成电路 silicon chip 硅片 arithmetic 算术 budget 预算 random 随机的 vacuum tube 真空管 3. Fill a correct word or a phrase in each of the blanks. (1) The development of computer has experienced four _ till now.generations(2) _ was the main feature of the first generation of computer。 ENIAC-