本书第二版选材全部来自原版材料，考虑到信息技术的飞速发展和学生英语水平的逐年提高，本次修订编者在第一版的基础上对书中的课文和阅读材料进行了必要的补充和更新，增加了专业英语的阅读理解、翻译和专业英语的基本写作知识和自我测试题的内容。全书第二部分附有课文参考译文和计算机软件人员水平考试中的专业英语试题解析，知识覆盖面宽，并注意题材的新颖性和多样性，自我测试题前补充了计算机软件人员水平考试中的专业英语试题解析，通俗易懂，可供广大计算机软件人员参考。

本书旨在提高读者阅读理解、翻译和专业英语写作的基本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。每个单元的第一部分都由课文、单词和词组、专业术语、注释、练习和阅读材料组成。第二部分增加了专业英语的阅读理解、翻译和初步写作知识。每两个单元后附有一套自我测试题，并附有课文参考译文。全书知识覆盖面宽，并注意题材的新颖和多样性，自我测试题前补充了计算机软件人员水平考试中的专业英语试题解析，通俗易懂，尽量使学生达到学用结合的目的。

本教材适合信息技术各专业及相关的计算机科学、软件工程、计算机网络专业，以及信息类相近专业的普通高校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 1

 Part A TEXT The Career of Information Technology Graduates

Reading Material A The ENIAC

Reading Material B CAREERS in IT

 Part B Interpretation of Carrier English

Unit 2

 Part A TEXT Java Language

Reading Material A What is Java?

Reading Material B Java and Java Script

 Part B Interpretation of Science and Technology Terminology

Test Yourself Ⅰ

Unit 3

 Part A TEXT The Buyer's Guide ( 1 )

Reading Material A How to Buy a Home Computer ( 1 )

Reading Material B How to Buy a Home Computer (2)

 Part B Introduction of Reading Skill

Unit 4

 PartA TEXT TheBuyer's Guide (2)

Reading Material A How to Buy A Home Computer (3)

Reading Material B Suggestions for Buyers

 Part B Expressions of Passive Voice

Test Yourself Ⅱ

Unit 5

 Part A TEXT Plug and Play

Reading Material A Introduction of Microsoft Certification Program

Reading Material B Microsoft Certifications

 Part B Text Format of Career English

Unit 6

 Part A TEXT Two Main Asynchronous Communication Methods in Cyberspace..

Reading Material A Controversial Visions on Cyberspace

Reading Material B Two Synchronous Communications Based on Text

 Part B Expressions of Numbers and Quantity

Test Yourself Ⅲ

Unit 7

 Part A TEXT Newsgroups

Reading Material A IP Telephony

Reading Material B FTP

 Part B Basic Translation Techniques

Unit 8

 Part A TEXT Web's Next Battle: Instant Messaging

Reading Material A Instant Messaging Guide

Reading Material B ICQ

 Part B Writing Skill ( 1 ) Classifying

Test Yourself Ⅳ

Unit 9

 Part A TEXT How Computer Viruses Spread

Reading Material A Types of Computer Viruses Infection

Reading Material B Trojans and Worms

 Part B Writing Skill (2) Defining

Unit 10

 Part A TEXT The Next Net

Reading Material A The Merging of Man & PC in 21st Century

Reading Material B Net Impact: So Far So Good

 Part B Writing Skill (3) Exemplifying

Test Yourself Ⅴ

Unit 11

 Part A TEXT Digital signal processors and its applications

Reading Material A Speech synthesis

Reading Material B Speech Recognition

 Part B Writing Skill (4) Reporting

Unit 12

 Part A TEXT Modem Role of Cryptography

Reading Material A An Initial Hint on Foundations of Cryptography

Reading Material B Basis of Information Security: More Than Computational Intractability

 Part B Writing Skill (5) Describing

Test Yourself Ⅵ

Unit 13

 Part A TEXT Communication Network

Reading Material A Future Network Architectures and Their Services

Reading Material B Key Factors in Communication Network Evolution.

 Part B Writing Skill (6) Predicting

Unit 14

 Part A TEXT Signal and System

Reading Material A Overview of Specific Systems ( 1 )

Reading Material B Overview of Specific Systems (2)

 Part B Writing Skill (7) Comparing

Test Yourself Ⅶ

Unit 15

 Part A TEXT Introduction of ISDN

Reading Material A Broadband ISDN

Reading Material B Network Management

 Part B Writing Skill (8) Cause and Effect

Unit 16

 Part A TEXT Characteristics of Communication Channels

Reading Material A Digital Radio-relay Systems

Reading Material B Using a Mouse

 Part B Writing Skill (9) Application Examples

期测试

Part Two

一、参考译文

二、计算机软件人员水平考试部分试题解析

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

Appendix Ⅱ Vocabulary

Appendix Ⅲ Glossary

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

Appendix Ⅴ Abbreviations for Network

Appendix Ⅵ New Words and Expressions for Electricity Electronics and IT

参考文献