Chapter Four Computer Technology Chapter Study Tasks (4) In this chapter, you will be able to Explain why a com puter is a system Learn how a com puter system is organized -Get the general ideas of the texts and extensive readings -Complete all the practice required Unit 13 a part 1 Notes to Text L Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage 2021/2/20 P1
2021/2/20 P.1 Unit 13 Computer Technology Chapter Four @ Part 1 Notes to Text & Part4 Extensive Reading & Part 2 Word Study @ Part5 Notes to Passage @ Part3 Practice on Text @ Part6 Practice on Passage Chapter Study Tasks（4） In this chapter, you will be able to —Explain why a computer is a system —Learn how a computer system is organized —Get the general ideas of the texts and extensive readings —Complete all the practice required
a Part 1 Notes to text Computer Systems Y 1) But the real meaning of"computer system"comes with interconnection.但计算机系统的真正含义是互相连接。 注释:动词短语 come with意思是“伴随发生” 2)In industry these days the interconnection of variable-speed drives and programmable logic controllers(PLCs) to automate production lines and control motors is a common example of a computer system.如今在工业中,将变速器和可变成逻辑控制器互连 起来,用以使生产自动化和控制电机,就是一个常见的计算机系统实例。 注释:此句的主语是 interconnection。介词短语 of variable-speed drives and programmable logic controllers (PLCs) to automate production lines and control motors只是主语的修饰语,谓语动词是 ls。 2021/2/20 P2
2021/2/20 P.2 @ Part 1 Notes to Text 1) But the real meaning of "computer system" comes with interconnection. 但计算机系统的真正含义是互相连接。 注释： 动词短语come with意思是“伴随...发生”。 2) In industry these days the interconnection of variable-speed drives and programmable logic controllers (PLCs) to automate production lines and control motors is a common example of a computer system. 如今在工业中，将变速器和可变成逻辑控制器互连 起来，用以使生产自动化和控制电机，就是一个常见的计算机系统实例。 注释：此句的主语是interconnection。介词短语of variable-speed drives and programmable logic controllers (PLCs) to automate production lines and control motors只是主语的修饰语，谓语动词是 is。 Computer Systems
3)In other words, a com puter is a fast and accurate sym bol manipulating system that is organized to accept, store, and process data and produce output results under the direction of a stored program of instructions.换句话说,计算机是一种能接收、存 储和处理数据,并能产生输出结果的快速、精确的符号加工系统,这一 系统是在存储指令程序控制下工作的。 注释:定语从句中的不定式 to accept, store, and process……用作目 的状语;介词短语 under the direction of a stored program of instructions则是方式状语。 4)Regardless of the type of device used, all are components for interpretation and communication between people and com puter systems.不论使用哪种设备,它们都是人与计算机系统之间进行解释 和通信的部件。 注释: Regardless of相当于 with no heed to; in spite of不论;尽管; a指代所有种类的设备。 2021/2/20 P3 End
2021/2/20 P.3 3) In other words, a computer is a fast and accurate symbol manipulating system that is organized to accept, store, and process data and produce output results under the direction of a stored program of instructions. 换句话说，计算机是一种能接收、存 储和处理数据，并能产生输出结果的快速、精确的符号加工系统，这一 系统是在存储指令程序控制下工作的。 注释：定语从句中的不定式to accept, store, and process……用作目 的状语；介词短语under the direction of a stored program of instructions则是方式状语。 4) Regardless of the type of device used, all are components for interpretation and communication between people and computer systems. 不论使用哪种设备，它们都是人与计算机系统之间进行解释 和通信的部件。 注释：Regardless of相当于with no heed to; in spite of 不论;尽管； all指代所有种类的设备。 End
L Part 2 Word Study 1. combination n.集合体 11 magnetizable adi.可磁化的 2. typical adj.典型的 12. coat v.涂上,包上 3. state n.规定;说明 13. flexible adi,柔软的 4. classify v.归于;分类 14. floppy adj软的 5. component n.组件 l15. arithmetic-logic section算术逻辑部件 6. interconnection n.互连 l6 instrument n.器械,器具 7. variable-speed drive变速器17 machine-coded adj机器编码的 8. programmable adj可编程的18 magnetic tape drive磁带机 9. automate v.使自动化 19 econdary storage units辅助存储单元 10. manipulate v.操作 20. peripheral adj外围的 个如2Ek
2021/2/20 P.4 End 1. combination n. 集合体 11. magnetizable adj. 可磁化的 2. typical adj. 典型的 12. coat v. 涂上, 包上 3. state n. 规定；说明 13. flexible adj. 柔软的 4. classify v. 归于；分类 14. floppy adj. 软的 5. component n. 组件 15.arithmetic-logic section 算术逻辑部件 6. interconnection n. 互连 16.instrument n. 器械, 器具 7. variable-speed drive 变速器 17.machine-coded adj. 机器编码的 8. programmable adj. 可编程的 18.magnetic tape drive 磁带机 9. automate v. 使自动化 19.secondary storage units辅助存储单元 10. manipulate v. 操作 20.peripheral adj. 外围的 & Part 2 Word Study
Part3 Practice on Text Task 1: Listening training Dictation of some key words Directions: You will hear some key words twice, most of which are taken from the Word Study. Then finish the Crossword Puzzle. ( See you book p. 2. Dictation of some key expressions Directions: You will hear some key expressions twice, most of which are taken from this text. Then you are asked to complete the missing words 1) arithmetic-logic section:4) online workstations 2)production.lines 5)variable-speed drives 3)primary storage section 6)magnetic_tape drives 2021/2/20 P.5
2021/2/20 P.5 Task 1: Listening training Dictation of some key words Directions: You will hear some key words twice, most of which are taken from the Word Study. Then finish the Crossword Puzzle. (See you book p. ) 2. Dictation of some key expressions Directions: You will hear some key expressions twice, most of which are taken from this text. Then you are asked to complete the missing words. @ Part3 Practice on Text 1) arithmetic-logic_________ 2) ______________lines 3) primary __________section 4) ___________workstations 5) variable-speed__________ 6) _______________tape drives section production storage online drives magnetic