计算机英语 第2篇.ppt

第2章 System Software (I) 本章要点 What is Software? Words and Expressions How To Do: Cleaning the Keyboard How To Work: Channels Grammar Focus：冠词、数词、连词及介词 Text in Chinese：系统软件 Reading Selection: Software 构词法（Ⅱ） Practical Writing：留言便条和预约便条 第2章 System Software (I) 本章要点 What is Software? Words and Expressions How To Do: Cleaning the Keyboard How To Work: Channels Grammar Focus：冠词、数词、连词及介词 Text in Chinese：系统软件 Reading Selection: Software 构词法（Ⅱ） Practical Writing：留言便条和预约便条 What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? What is Software? * * Software is another name for programs. * Programs give step-by-step instructions for the computer hardware to function properly, and also, programs tell the computer how to process data into the form the user requires.Basically, there are two kinds of software—system software and application software (See Figure 2-1). System software refers to “background software”, the kind the computer uses to handle technical details without user intervention; application software refers to“end-user” software, the kind the user uses to meet his/her different ends. Figure 2-1 Notes: 1．“Programs give step-by-step instructions for the computer hardware to function properly, and also, programs tell the computer how to process data into the form the user requires.” 这个句子由两个主语都是programs的并列分句组成。第一个分句中for the computer to function properly动词不定式短语作give instructions的目的状语，提供指令的目的是让计算机硬件能够正常工作。 2．The operating system is very important for the computer system in that it supports application software to interact with computer hardware and to perform specific tasks.”本句中in that 意为：因为、在于，引导原因状语从句。 Exer