计算机专业英语课件
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计算机专业英语ppt

Configuring
Loading the OS
Authenticating Users
Booting
• When you start or restart a computer, it reloads the OS into the computer’s memory. This process is called booting, after the notion that the computer “pulls itself up by its bootstraps”.
• The operating system requires a specific type or family of processors.
Basic functions of OS
• The operating system starts the computer, manage programs, parcels out memory, deals with input and output devices, and provides a means of interacting with the user.
• ROM(read-only memory)只读存贮器
通常指固化存储器(一次写入,反复读取) • RAM (random access memory) 随机存 取存储器,它的特点是易挥发性,即掉 电失忆。
Power-On Self Test (POST)
• Goal: to make sure that the computer and associated peripherals are operating correctly.
• parcel sth. out verb = to divide or share something among several people: vt. 划分,分配
计算机专业英语ppt课件

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专业英语的时态特点
❖ 就时态而言,因为专业科技文献所涉及的内容 (如科学定义、定理、方程式或公式、图表等) 一般并没有特定的时间关系,所以在专业文献 中大部分都使用一般现在时。
❖ 至于一般过去时、一般完成时也在专业英语中 经常出现,如科技报告、科技新闻、科技史料 等。
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准确性
专业英语的准确性主要表现在用词上。然 而在语法结构上也有其特点。例如,为了 准确精细地描述事物过程,所用句子都较 长有些甚至一段就是一个句子。长句反映 了客观事物中复杂的关系,它与前述精练 的要求并不矛盾,句子长结构仍是精练的, 只是包含的信息量大,准确性较高。
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计算机专业英语的特点
❖常用It … 句型结构 ❖ 单个动词比动词词组用得频繁 ❖ 常使用动词或名词演化成的形容词 ❖ 希腊词根和拉丁词根比例大 ❖ 专业术语多 ❖ 半技术词汇多 ❖ 用虚拟语气表达假设或建议 ❖ 缩略语使用频繁
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专业英语的语法特点
❖客观(objectivity) ❖精练(conciseness) ❖准确(accuracy)
专业英语中的长句
❖ 面对长句,要进行语法分析。
❖ 语法分析主要从两点入手,第一是找出谓语,然后找 主语。一般英语句子不像汉语那样经常省略主语,而 是由主语和谓语一起构成句子的核心。
❖ 第二是找出连接词。英语和汉语的另一个不同是汉语 句子的分句之间常常没有连接词,而英语句子和分句 之间一般都有连接词连接。
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《计算机专业英语》课件

介绍编程语言的种类和分类,如面向过程、面向对象、函数式、脚本等。
2 常见的编程语言介绍
介绍常见的编程语言,如C、Java、Python等的特点和应用场景。
3 编程语言的发展趋势
介绍编程语言的发展趋势,如人工智能、云计算、大数据等领域的编程语言需求。
软件工程
软件工程的定义和目标
介绍软件工程的定义、目标和 方法,如需求分析、设计、编 码、测试、维护等阶段。
操作系统的层级结构
介绍操作系统的层级结构,如内核、文件系统、进程管理等,并阐述它们之间的关系。
计算机网络
计算机网络的概念和分 类
介绍计算机网络的概念、分 类、组成和作用。
计算机网络的拓扑结构
介绍计算机网络的拓扑结构, 如星型、环型、总线型等, 并分析它们的优缺点。
网络协议和标准
介绍网络协议和标准,如 TCP/IP、HTTP、FTP等, 并重点讲解他们的实现机制 和应用场景。
分析未来计算机专业面临的挑战和机遇,展望 未来计算机技术的发展趋势。
介绍内存、硬盘等存储器的种类 和使用方法。
输入设备和输出设备的分类
介绍键盘、鼠标、打印机等输入 输出设备的分类、特点,以及各 种接口。
操作系统
操作系统的概念和作用
介绍操作系统的定义、作用以及各种操作系统的特点与应用场景。
常见的操作系统介绍
介绍常见的操作系统,如Windows、Linux、iOS等的特点与应用场景。
软件开发的过程和方法
介绍软件开发的过程,如瀑布 模型、敏捷开发、DevOps等, 并重点讲解它们的优缺点和应 用场景。
软件测试和维护
介绍软件测试和维护的方法和 工具,如黑盒测试、白盒测试、 自动化测试、代码重构等信息安全的定义、作用和意义,以及信息安全的保障措施与体系。
2 常见的编程语言介绍
介绍常见的编程语言,如C、Java、Python等的特点和应用场景。
3 编程语言的发展趋势
介绍编程语言的发展趋势,如人工智能、云计算、大数据等领域的编程语言需求。
软件工程
软件工程的定义和目标
介绍软件工程的定义、目标和 方法,如需求分析、设计、编 码、测试、维护等阶段。
操作系统的层级结构
介绍操作系统的层级结构,如内核、文件系统、进程管理等,并阐述它们之间的关系。
计算机网络
计算机网络的概念和分 类
介绍计算机网络的概念、分 类、组成和作用。
计算机网络的拓扑结构
介绍计算机网络的拓扑结构, 如星型、环型、总线型等, 并分析它们的优缺点。
网络协议和标准
介绍网络协议和标准,如 TCP/IP、HTTP、FTP等, 并重点讲解他们的实现机制 和应用场景。
分析未来计算机专业面临的挑战和机遇,展望 未来计算机技术的发展趋势。
介绍内存、硬盘等存储器的种类 和使用方法。
输入设备和输出设备的分类
介绍键盘、鼠标、打印机等输入 输出设备的分类、特点,以及各 种接口。
操作系统
操作系统的概念和作用
介绍操作系统的定义、作用以及各种操作系统的特点与应用场景。
常见的操作系统介绍
介绍常见的操作系统,如Windows、Linux、iOS等的特点与应用场景。
软件开发的过程和方法
介绍软件开发的过程,如瀑布 模型、敏捷开发、DevOps等, 并重点讲解它们的优缺点和应 用场景。
软件测试和维护
介绍软件测试和维护的方法和 工具,如黑盒测试、白盒测试、 自动化测试、代码重构等信息安全的定义、作用和意义,以及信息安全的保障措施与体系。
计算机专业英语第三版教学课件Unit1Hardware

Look and Learn Dialogue Reading Further Study Words and Phrases
Unit 1
Lesson 14
玛丽是个计算机高手。她的朋友遇到计算机的相关问题时,
经常会来请教她。
Mike: Hi, Mary! I know you are good at computer. Could you help me with my computer?
Unit 1 Hardware
Lesson 1 Recognizing Computers Lesson 2 Dealing with Memory Lesson 3 Working with Storage Devices Lesson 4 Dealing with Motherboards
Lesson 1 Recognizing Computers
Look and Learn Dialogue Reading Learn More New Words and Phrases
Unit 1
Lesson 14
B. Work with your partner to translate the sentences into Chinese.
Microphones allow you to record sounds.
Goal Identify parts of the computer.
Look and Learn Dialogue Reading
Learn More New Words and Phrases
Unit 1
Lesson 14
A. Fill in the blanks with the words or phrases in the box according to the picture.
Unit 1
Lesson 14
玛丽是个计算机高手。她的朋友遇到计算机的相关问题时,
经常会来请教她。
Mike: Hi, Mary! I know you are good at computer. Could you help me with my computer?
Unit 1 Hardware
Lesson 1 Recognizing Computers Lesson 2 Dealing with Memory Lesson 3 Working with Storage Devices Lesson 4 Dealing with Motherboards
Lesson 1 Recognizing Computers
Look and Learn Dialogue Reading Learn More New Words and Phrases
Unit 1
Lesson 14
B. Work with your partner to translate the sentences into Chinese.
Microphones allow you to record sounds.
Goal Identify parts of the computer.
Look and Learn Dialogue Reading
Learn More New Words and Phrases
Unit 1
Lesson 14
A. Fill in the blanks with the words or phrases in the box according to the picture.
计算机专业英语课件市公开课金奖市赛课一等奖课件

•1.键盘—— keyboard
2.鼠标—— mouse
•3.扫描仪—— scanner
4.打印机—— printer
•5.输入—— input
6.输出—— output
•7.显示器—— monitor
8.存储器—— storage
•9.数据库—— database
10.操作系统—— operating system
1.As soon as you turn the computer off,the contents of RAM will disappear.( T ) 2.Window XP is Microsoft’s most advanced desktop operating system.T( )
2、标题栏
• 3.operating system
3、操作系统
• 4.personal computer
4、个人计算机
• 5.menu bar
5、菜单栏
• 6.desk publishing
6、桌面排版
• 7.electronic spreadsheet
7、电子表格
• 8.hard disk • 9.database • 10.cursor
displays the name of the current application and name of the current document;the menu bar lists the names of the menus available;
the standard toolbar gives the user quick access to frequently used
5.Application software (also called end-user program) is designed to perform a
计算机专业英语教程课完整版PPT课件

management • Unit 27 Electronic Marketing • Unit 28 Computer Security
09.06.2021
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Unit 1 Introduction of Computers
1.1 Text • A computer is a digital electronic
written off:注销;很快完成
as the price of progress:由于价格的进步
09.06.2021
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13
Computer Development
• The Fourth Generation of Computers (1971 through now)
• First there was Large Scale Integration (LSI), with
09.06.2021
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7
目录
• Unit 22 Artificial Intelligent • Unit 23 Neural Network • Unit 24 Introduction of Electronic
Commerce • Unit 25 Electronic Payment System • Unit 26 Logistics and Supply-chain
这是由一个主句和四个从句组成的复杂长句,只有进行必要的语法分析, 才能正确理解和翻译。现试译如下: 除非相信那些机器造出的产品卖给消费者的价格足够支付所有成本,否则 厂家是不会买那些机器的。 节译:要不相信那些机器造出的产品售价够本,厂家是不会买的。 后一句只用了24个字,比前句40个字节约用字40%,而对原句的基本内容 无损。可见,只要吃透原文的结构和内涵,翻译时再在汉语上反复推敲提 炼,复杂的英语长句,也是容易驾驭的。
09.06.2021
精选课件
8
Unit 1 Introduction of Computers
1.1 Text • A computer is a digital electronic
written off:注销;很快完成
as the price of progress:由于价格的进步
09.06.2021
精选课件
13
Computer Development
• The Fourth Generation of Computers (1971 through now)
• First there was Large Scale Integration (LSI), with
09.06.2021
精选课件
7
目录
• Unit 22 Artificial Intelligent • Unit 23 Neural Network • Unit 24 Introduction of Electronic
Commerce • Unit 25 Electronic Payment System • Unit 26 Logistics and Supply-chain
这是由一个主句和四个从句组成的复杂长句,只有进行必要的语法分析, 才能正确理解和翻译。现试译如下: 除非相信那些机器造出的产品卖给消费者的价格足够支付所有成本,否则 厂家是不会买那些机器的。 节译:要不相信那些机器造出的产品售价够本,厂家是不会买的。 后一句只用了24个字,比前句40个字节约用字40%,而对原句的基本内容 无损。可见,只要吃透原文的结构和内涵,翻译时再在汉语上反复推敲提 炼,复杂的英语长句,也是容易驾驭的。
计算机专业英语ppt

Acer E360 Socket 939 motherboard by Foxconn .svg
System Clock
Within the computer, events happen at a pace controlled by a tiny electronic “drummer”, called the system clock. The component is an electronic circuit that generated pulses at a rapid rate, measured in millions of cycles per second (MHz). Note that the system clock doesn’t have anything to do with keeping the time and date; the system clock synchronizes the computer’s internal activities. Synchronize : 同步
Control Unit
The control unit coordinates and controls all the other parts of the computer system. Under the direction of a program, the control unit manages four basic operations:
Power supply
A computer’s power supply can transform the alternating current (AC) available from standard wall outlets into the direct current (DC) needed for the computers operation. It also steps the voltage down to the low voltage required by the motherboard.
计算机专业英语课件Unit01

1.2 Section B: The Internet of Things
• Words
• bidding[ˈbidiŋ] n. 吩咐,投标 • brew[bruː] v. 煮(咖啡),酿制(啤酒),沏(茶) • gadget[ˈgædʒit] n. 小装置,小器具 • downtime[ˈdauntaim] n. 停止运行时间 • crumble[ˈkrʌmbl] v. 坍塌,损坏 • impending[imˈpendiŋ] adj. 即将发生的,迫在眉
1. Public cloud is a cloud environment in which all cloud infrastructure and computing resources are dedicated to, and accessible by, one customer only. 2. The private cloud provider owns, manages, and assumes all responsibility for the data centers, hardware, and infrastructure 3. Multicloud is the use of two or more public clouds together with a private cloud environment. 4. Hybrid cloud is a combination of public and private cloud environments. 5. SaaS is application software that's hosted in the cloud and that you access and use via a Web browser, a dedicated desktop client, or an API that integrates with your desktop or mobile operating system.
计算机专业英语第4版课件 (1)[100页]
![计算机专业英语第4版课件 (1)[100页]](https://img.taocdn.com/s3/m/5a0c14e5fd0a79563d1e722b.png)
2020/10/18
计算机专业英语第4版
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Key Words
methodology multiplication negation negative-logic represent ripple significance spike
方法学,方法论 倍增,乘法运算 否定,拒绝 负逻辑 表示,代表
脉动,波动 重要性,意义 尖峰信号
• 译文:组合电路通过传输二进制信息,使 得给定的输入数据产生了所需要的输出数 据。
2020/10/18
计算机专业英语第4版
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Notes
[2] A combinational circuit can also be specified with m Boolean functions, one for each output variable.
• 第3单元是多媒体知识,内容有计算机图形学、多媒体技 术、计算机动画、多媒体软件、虚拟现实和CAD。
• 第4单元是计算机网络相关知识,包括计算机网络、无线 网、互联网应用、搜索引擎、计算机安全、远程教育、电 子商务和电子市场。
2020/10/18
计算机专业英语第4版
2
Unit 1 Hardware Knowledge
• 说明:本句的“If the more positive voltage…”是条件状语。“the system is said to…”用被动语态表示客观叙述。
计算机专业英语第4版
3
1.1 Hardware Basics
1.1.1 Text A
• A combinational circuit is a connected arrangement of logic gates with a set of inputs and outputs.
教学课件:《计算机专业英语》

Text C A Brief Introduction to PC
A PC is a general purpose tool built around a microprocessor. It has lots of different parts — memory, a hard disk, a modem, etc. — that work together. “General purpose” means that you can do many different things with a PC. You can use it to type documents, send E-mail, browse the Web and play games.
Notes to the Text
计算机是一种能够高速、自动地进行算 术和逻辑运算.Take the speed of calculation for instance, ENIAC could only make calculations 5,000 times per second; but today, the fastest computer can do 100,000,000,000 times. 就运算速度而言,ENIAC每秒仅能完成 5,000次运算;而如今最快的计算机,其 速度可达每秒钟运算千亿次。
Notes to the Text
随着科学技术的发展,涌现的信息量与 日俱增,这些信息除了数值型数据外,还 有大量的非数值型数据。
Notes to the Text
4. Especially in recent years, with the development of the database and computer network technique, computer users in different districts and countries can share many valuable information resources through the network.
《计算机专业英语》课件

Adverbial clauses
These are clauses that modify a verb, advisory, or advisory by providing additional information about it. They are introduced by sub coordinating connections (after, because, if, etc.) or related proposals
01
02
03
Detailed description
Website: Website
Domain: Domain name
03
Email: Email
01
IP Address: IP address
02
Protocol: Protocol
URL: Uniform Resource Locator
Inverted presence patterns
These patterns involve reversing the normal order of the subject and verb They can create a more formal or attention grabbing effect and are often used in technical writing to emphasize important information or to adapt to a specific formatting style
03
Function: Function
Class:
Loop: Loop
PART
03
Grammar and Sentence Patterns in Computer Professional English
These are clauses that modify a verb, advisory, or advisory by providing additional information about it. They are introduced by sub coordinating connections (after, because, if, etc.) or related proposals
01
02
03
Detailed description
Website: Website
Domain: Domain name
03
Email: Email
01
IP Address: IP address
02
Protocol: Protocol
URL: Uniform Resource Locator
Inverted presence patterns
These patterns involve reversing the normal order of the subject and verb They can create a more formal or attention grabbing effect and are often used in technical writing to emphasize important information or to adapt to a specific formatting style
03
Function: Function
Class:
Loop: Loop
PART
03
Grammar and Sentence Patterns in Computer Professional English
计算机专业英语实用教程 .ppt

代词:形容词和副词都有级的变化。用来代替名词、数词、短语或从句的词 叫代ቤተ መጻሕፍቲ ባይዱ。按其意义、特征及在句中的作用分为:人称代词、物主代词、指示 代词、反身代词、关系代词和不定代词等。
形容词及副词:形容词修饰名词,说明事物或人的性质或特征。副词主要用 来修饰动词、形容词、介词短语或其他副词。形容词和副词都有级的变化。 同等比较句型: 1)肯定句式:“A +谓语+ as +adj./adv.原级+ as + B”表示A与B一样。 2)否定句式:“A+谓语+not as(so)+adj./adv.原级+ as + B”表示A与B不同, 或A不如B。 比较级常用句型: 1)“A+谓语+adj./adv.比较级+ than +B”表示A比B更…… 2)“which is + adj./adv.比较级, A or B?”表示两者之间选择。 3)“adj./adv.比较级 + and + adj./adv.比较级”表示越来越……
including the keyboard, the mouse, and the scanner etc., output devices(See Figure 1-8~Figure 1-10)— including the monitor, the printer, the speakers etc., and secondary storage devices(See Figure1-11~Figure 1-13)— including
What is the Computer and the Internet?
Figure 1-1
Figure 1-2
形容词及副词:形容词修饰名词,说明事物或人的性质或特征。副词主要用 来修饰动词、形容词、介词短语或其他副词。形容词和副词都有级的变化。 同等比较句型: 1)肯定句式:“A +谓语+ as +adj./adv.原级+ as + B”表示A与B一样。 2)否定句式:“A+谓语+not as(so)+adj./adv.原级+ as + B”表示A与B不同, 或A不如B。 比较级常用句型: 1)“A+谓语+adj./adv.比较级+ than +B”表示A比B更…… 2)“which is + adj./adv.比较级, A or B?”表示两者之间选择。 3)“adj./adv.比较级 + and + adj./adv.比较级”表示越来越……
including the keyboard, the mouse, and the scanner etc., output devices(See Figure 1-8~Figure 1-10)— including the monitor, the printer, the speakers etc., and secondary storage devices(See Figure1-11~Figure 1-13)— including
What is the Computer and the Internet?
Figure 1-1
Figure 1-2
计算机专业英语ppt

• newsletter n: a short written report of news about a club, organization etc that is sent regularly to people who are interested:
(给特定读者定期寄发的) 业务通讯,简报 • Flyer n. a small sheet of paper advertising something: (广告)传单
• rendering n. A drawing in perspective of a proposed structure. 透视图:以透视画 法绘出的拟建建筑物的图案 • Landscape vt. =to make a park, garden etc look attractive and interesting by changing its design, and by planting trees and bushes etc: 美化景观
Commercial Programs, Shareware, Freeware
• Commercial software is copyrighted software you must pay for before you can use it. • Shareware refers to copyrighted software that you can use on a “try before you buy” basis. • Freeware (such as Linux OS) refers to copyrighted software given away for free with the understanding that you can‟t turn around and sell it for profit.
计算机专业英语课件4

9
Notes
[5] In this context, there will be the need to create the right situation-aware development environment for stimulating the creation of services and proper intelligent middleware, to understand and interpret the information, to ensure protection from fraud and malicious attack and to guarantee privacy. 译文:在这种情况下,需要建立恰当的有情景意识的开发环 境来激发创建服务和适当智能中间件、了解和解释信息、确 保防止欺骗和恶意攻击并保护隐私。 说明:本句的四个动词不定式短语“to create the right…, to understand…, to ensure protection… and to guarantee privacy”作 定语,修饰和限定“the need”,“for stimulating the creation…” 是一个介词短语,作定语,修饰“development environment”。
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• Several complementary technical developments provide capabilities that taken together help to bridge the gap between the virtual and physical world. These capabilities include: – Communication and cooperation – Addressability – Identification – Sensing – Actuation – Embedded information processing – Localization – User interfaces
Notes
[5] In this context, there will be the need to create the right situation-aware development environment for stimulating the creation of services and proper intelligent middleware, to understand and interpret the information, to ensure protection from fraud and malicious attack and to guarantee privacy. 译文:在这种情况下,需要建立恰当的有情景意识的开发环 境来激发创建服务和适当智能中间件、了解和解释信息、确 保防止欺骗和恶意攻击并保护隐私。 说明:本句的四个动词不定式短语“to create the right…, to understand…, to ensure protection… and to guarantee privacy”作 定语,修饰和限定“the need”,“for stimulating the creation…” 是一个介词短语,作定语,修饰“development environment”。
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• Several complementary technical developments provide capabilities that taken together help to bridge the gap between the virtual and physical world. These capabilities include: – Communication and cooperation – Addressability – Identification – Sensing – Actuation – Embedded information processing – Localization – User interfaces
计算机专业英语课件(绪论)

专业(科技)英语的学习特点
(1) (2) (3) (4) 强调阅读和翻译的能力 阅读理解与阅读速度的关系 专业领域中必须注重词汇的含义 对原文的理解要有全局观念。
例:All freely falling bodies descend from the same height in equal time. 误译:一切自由降落的物体在相等的时间内,从同样的高度下降。 正译:一切自由降落的物体若从同样的高度下降,其下降的时间相等。
精炼性 Conciseness
简化表述形式,避免错误。 例1. Move the cursor by using the arrow keys on the keyboard or positioning the mouse and clicking the left button. 例2. The mouse is an accessory. Another kind of accessory is an external drive. Printers are still accessories, for now at least.
Course arrangement
课文分析 Text analysis 习题讲解 Exercises 补充材料 Supplementary Materials 其他(专题,精读理解,其他材料)
Let’s Start with 3 Questions Why should we study Computer English? What should we learn in this course? How do we study Computer English?
Q1、Why should we study Computer English
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第一章 简介
1.1 专业英语的专业性和客观性 1.2 计算机专业英语的词汇特点 1.3 计算机3
1.1 专业英语的专业性和客观性
• 专业英语的特点 • 专业英语的专业性和客观性 • 英语的句子成分简介
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How to learn
• • • • Key: to be familiar with the characteristics To be familiar with word/phrase-formation Word/phrase accumulation To improve reading ability consciously
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现在进行时
现在进行时的被动语态构成如下: 主语 + is(are)being + 及物动词的过去分词 例 : Electron tubes are found in various old products and are still being used in the circuit of some new products.
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计算机专业英语概述
• 在文体结构上,由于专业英语大多强调简单明 了、精练准确,所以会大量地使用一些诸如动 名词、分词和不定式等非限定性动词。 • 在语气上,大量使用被动语态是专业英语的一 大特色。 It is organized/designed to • 专业英语中所使用的时态有 60%以上是一般现 在时,有大约 5% 左右是一般过去时,所以在 翻译过程中,就要用一些能突出英语句子中对 时态表达的词。
objective
• To study computer principles, fundamentals, and new development in this field; • To learn computer terminology, to be familiar with the style, the grammar and the characteristics of Computer English; • To improve one’s reading, writing and translation ability, so that he/she can read some English newspapers, magazines or books on computer easily, and lay a solid foundation for a further study.
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一般过去时
一般过去时的被动语态构成如下: 主语 + was(were)+及物动词的过去分词 例:That plotter was not bought in Beijing. 译文:那台绘图仪不是在北京买的。
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一般将来时
一般将来时的被动语态构成如下: 主语 + will be + 及物动词的过去分词 当主语是第一人称时,可用: 主语 + shall be + 及物动词的过去分词 例:I shall not be allowed to do it. 译文:不会让我做这件事的。 例:What tools will be needed for the job? 译文:工作中需要什么工具?
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计算机专业英语概述
• 各个领域的专业英语都以表达科技概念、理论 和事实为主要目的,因此,它们很注重客观事 实和真相,要求逻辑性强,条理规范,表达准 确、精练以及正式。
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计算机专业英语概述
• 计算机专业术语多,而且派生和新出现的专业 用语还在不断地增加。 • 在表达形式上,计算机专业英语与普通英语一 样都有口语和书面形式两种。口语形式大多出 现在一些专业知识的讲座、广播等场合中,而 书面形式一般是一些书籍、论文和杂志等,用 语正规。
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专业英语在词汇短语和句子结构方面的特点
• 合成新词多、专业术语多、介词短语多及半技 术 词 汇 多 , 缩 略 词 经 常 出 现 (special terms, abbreviations, derivatives, etc.) • 旧 词 新 意 (old words often take on new meanings):bus, thread, exception, versatility, fault) • 长句多(long sentence)
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专业英语的特点
• 科学技术本身的性质要求专业英语与专业内容 相互配合,相互一致,这就决定了专业英语 (English for Special Science and Technology) 与 普 通 英 语 ( Common English or General English)有很大的差异。 • 专业英语的主要特点是它具有很强的专业性, 懂专业的人用起它来得心应手,不懂专业的人 用起来则困难重重。
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专业文体的语法特点
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被动语态在计算机专业英语中的应用
• 被动语态表示主语是谓语动作的承受者。 • 被动语态在科技文章中用得十分频繁 , It is organized/designed to • It was developed/proposed by …, for the purpose of • Database services and computer networks make available a great variety of information sources.
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一般现在时
一般现在时的被动语态构成如下: 主语 + am(is,are)+及物动词的过去分词 例:The switches are used for the opening and closing of electrical circuits. 译文:开关是用来开启和关闭电路的。