Unit 1Artificial intelligence is the science and engineering of making intelligent machines,especially intelligent computer programs.人工智能是制造智能机器的科学与工程，特别是智能化的计算机程序。
It is related to the similar task of using computers to understand human intelligence,but AI does not have to confine itself to methods that are biologically observable.这与使用计算机来理解人类智能的类似任务有关，但是人工智能不需要把它局限在生物可观察的方法上。
In this unit,the two passages present a general picture of AI research .在这个单元，两个章节提出了人工智能研究的概况。
Text A briefly introduces the definition of AI,some kinds of architectures of AI system,essential capabilities to AI programs and so on.文章A简要介绍了人工智能的定义，人工智能的系统的几种体系结构、基本功能以及程序等等。
Text B explains a particular area of AI research--natural language processing including its definition and a legendary Turing’s Test.文章A解释特定地区研究人工智能的自然语言处理包括定义和传说中的图灵测试。
Unit 2Telecommunication networks have emerged as strategic components of the worldwide infrastructure needed to support economic development , scientific discovery , educational opportunities ,and social advancement.电信网络已成为战略组成的全球基础设施来支持经济的发展，科学发现，教育机会和社会进步。
They are rapidly evolvingtoward support of integrated multimedia services that involve voice,data,image and full motion video over fiber optics-based wireless facilities.他们迅速发展为支持集成的多媒体服务。
包括语言，数据，在基于光纤的有线和无线设备，和基于蜂窝的全运动视频图像。
Text A provides a comprehensive technical overview of Global System for Mobile Communication,including the basic concept of GSM,its specifications,networks and services.文章A提供了一个全面的内容概述全球移动通信系统。
包括GSM，基本概念的规范，网络和服务。
Text B introduces a novel invention of modern telecommunication,namely,the disposable cell phone.文章B介绍了现代电信的一种新发明，即多功能手机。
Some topics concerning its basic manufacturing process,the target audience and prospective distribution are discussed in detail.关于它的基本制造过程中的一些主题，目标受众和潜在的分布都进行了详细的讨论。
Unit 3Internet seems to have become an indispensable part in modern life . but it has both advantages and disadvantages as may be seen in the two passages in this unit .互联网似乎已成为现代生活不可或缺的一部分。
但它既有优点也有缺点，可能在这一单元的第二段中看到。
Text A points out that people can get a lot of personal information by means of internet and then tells us who wants it .文章指出，人们可以通过互联网获取大量个人信息，然后告诉我们想要的信息。
This demand，along with a delivery vehicle of unprecedented efficiency . has caused a booming market for services offering to help people find out more about other people .这一需求，随着运载工具的效率空前，已经引起了一个蓬勃发展的服务市场，以帮助人们了解更多关于其他人的信息。
Text B warns readers that as Email becomes popular . it begins to be increasingly misused by criminal elements . the text also shows readers some of the major email related crimes.文章B警告读者，因为电子邮件变得流行，它开始被犯罪分子滥用。
文章还向读者展示了一些关于电子邮件的犯罪。
Unit 4The rapid development of computer science has been a great wonder of the new century.计算机科学的飞速发展，成为新世纪的一个伟大奇迹。
One of the major events of 2005 in the CPU market is the release of the dual-core processor architecture.在2005年处理器市场重要事件之一是发布双核处理器结构。
What is a dual-core processor? A dual core processor is a CPU with two separate cores on the same die,each with its own cache.什么是双核处理器？双核处理器是一个处理器，在同一个芯片上有两个不同的内核每个内核都有它自己的缓存。
In a dual core processor each core handles incoming data strings simultaneously to improve efficiency.在双核处理器中，每个内核同时处理输入的数据字符串，以提高效率。
Well then,how could dual-core processor improve the ability of PC?“Just as two heads are better than one”？那么，双核处理器如何能提高个人电脑的工作效率？“好比两个同时工作比一个工作更好”In this unit,the two texts will offer the readers more information on these topics.在本单元中，这两个文章为读者提供更多关于这些主题的信息。
Unit 5What exactly is InfoTech?什么是信息技术It is the “marrying-up”of products from several key industries:computers,telephones,televisions,and satellites.它是几个关键行业的产品“联姻”：电脑、电话、电视和卫星。
It means using micro-electronics,telecommunication networks,and fiber optics to help produce,store,obtain and send information by way of words,number,pictures and sound more quickly and efficiently than ever before.它意味着使用微电子、通信网络和光纤技术来帮助生产、存储、获取和发送信息，通过文字、数字、图片和声音比以前更快速、高效地进行存储和发送信息。
The impact InfoTech is having and is going to have on our lives and work is tremendous.信息技术正在并将要对我们的生活和工作产生巨大的影响。
InfoTech is part of the technological revolution and this is with us now.信息技术是技术革命的一部分，这是我们现在。
Text A explains what WUSB is and shows the wireless future. 文章B告诉最重要的发展在2005年信息技术。
Text B tells the most important developments in InfoTech in the year of 2005.文章B告诉最重要的发展在2005年信息技术。
Unit 6Control system is essential in modern civilization.控制系统在现代文明中是必不可少的。
It is being applied to almost every field,such as aeronautics,chemistry,mechanics,environment,civil and electrical engineering and even to business,society,and politics as the understanding,of the dynamics of these systems.它被应用于各个领域，如航空航天，化学，环境，土木工程和电气工程,商业，社会，政治，作为这些系统增加了动态的理解。