本教程共有16个单元，课文全部选自美、英原文科普读物，课文包括了通信技术、信息技术、计算机网络及宽带知识、数字通信、光通信、卫星通信等专业知识，阅读材料取材丰富，包括网络通信、网络管理、无线电通信等最新技术。全书课文浅显易懂，语言生动活泼，适合于电子信息类相关专业的大学生学习。

本书旨在提高读者阅读理解和翻译专业英语的应用能力和以英语为工具获取交流信息的专业技术。

全书在体例上以单元来划分。每个单元都由课文、单词和词组、专业术语、注释、练习和阅读材料(阅读材料C为科普读物)组成。每四个单元之后有一套自我测试题。书中第二部分附有课文和部分阅读材料的参考译文，选材全部来自英文原版材料。本书知识覆盖面宽，并注意题材的多样性，通俗易懂，尽量使学生达到学用结合的目的。

本教材适合通信、电子信息类专业及相关的计算机科学、计算机应用专业以及相近专业的大学本科和高职高专的学生使用，也可供广大工程技术人员学习和参考。

Part One

Unit One

Text  Digital Communications

Reading Material A The Technology——MANs

Reading Material B Digital Communications Technology

Reading Material C Keypad

Unit Two

Text  Antennas

Reading Material A Networking

Reading Material B Electrical Engineering

Reading Material C UFO

Unit Three

Text  A Brief History of Satellite Communications

Reading Material A Satellite Communications

Reading Material B Microwave Communications System

Reading Material C Communication Satellite

Unit Four

Text  Data Communication

Reading Material A Laser

Reading Material B Electricity-Generation and Transport

Reading Material C Light Waves

Test Yourself Ⅰ

Unit Five

Text  Amplifiers

Reading Material A Facsimile Transmission

Reading Material B Fax via Email Cuts Costs

Reading Material C Water

Unit Six

Text  Analog Communications

Reading Material A Facsimile Equipment

Reading Material B Video Conferencing

Reading Material C Pollution and Enviourament

Unit Seven

Text  Semiconductors

Reading Material A Pulse Code Modulation

Reading Material B Communication Satellite Systems

Reading Material C A Trick for Trouble-shooting

Unit Eight

Text   Optical Communications

Reading Material A Optical Fiber Communications

Reading Material B Put Your Business on the Internet

Reading Material C Laser and Communication

Test Yourself Ⅱ

Unit Nine

Text  Electromagnetic Radiation

Reading Material A The Electro-Magnet

Reading Material B The Changing Role of the PBX

Reading Material C Crisis of Energy

Unit Ten

Text  Electrical Measurements

Reading Material A Modern Means of Communication

Reading Material B ISDN

Reading Material C New Changing in Our Living

Unit Eleven

Text  Digital Signal Processors and Its Applications

Reading Material A Speech Synthesis

Reading Material B Speech Recognition

Reading Material C Great Lakes

Unit Twelve

Text  Modern Role of Cryptography

Reading Material A An Initial Hint on Foundations of Cryptography

Reading Material B Basis of Information Security

Reading Material C Saving Earth

Test Yourself Ⅲ

Unit Thirteen

Text  Communication Network

Reading Material A Future Network Architectures and Their Services

Reading Material B Key Factors in Communication Network Evolution

Reading Material C Fresh Water

Unit Fourteen

Text  ignal and System

Reading Material A Overview of Specific Systems (1)

Reading Material B Overview of Specific Systems (2)

Reading Material C Ecology

Unit Fifteen

Text  Introduction of ISDN

Reading Material A Broadband ISDN

Reading Material B Network Management

Reading Material C Inner Ear

Unit Sixteen

Text  Characteristics of Communication Channels

Reading Material A How Computer Viruses Spread

Reading Material B Using a Mouse

Reading Material C Microprobe

Test Yourself Ⅳ

Final Test(A)

Final Test(B)

Part Two

课文与部分阅读材料参考译文

Appendix Ⅰ “An overview of what make up an information system: people, procedures,software, hardware and data”

Appendix Ⅱ Vocabulary

Appendix Ⅲ Terminology Practice and Applications

Appendix Ⅳ The following is a list abbreviations which appear in the text

Appendix Ⅴ Abbreviations for Network

Appendix Ⅵ Terminology for Electronics and Communications

参考文献