Part 1 Introduction 1
Unit 1.1 1
A.Introduction of EST（the English of Science and Technology） 1
B.科技英语的特点：概述 5
C.Readings： The Internet 8
D.Exercises 10
Unit 1.2 11
A.History of Computer Networks 11
B.科技英语的词法Ⅰ 13
C.Readings： Job Description—Network Engineer 15
D.Exercises 19
Unit 1.3 20
A.Protocol Stacks and the System Model 20
B.科技英语的词法Ⅱ：科技英语词汇的来源及构成（1） 24
C.Readings： Where Do RFCs Come From？ 26
D.Exercises 28
Unit 1.4 29
A.Common Types of Computer Networks 29
B.科技英语的词法Ⅲ：科技英语词汇的来源及构成（2） 34
C.Readings： The Birth of the Web 39
D.Exercises 44
Part 2 Networking Technology 46
Unit 2.1 46
A.Physical Layer and Data Link Layer： From Signals to Data Frames 46
B.科技英语的词法Ⅳ：缩略法和拼缀法 49
C.Readings： Networking Devices 51
D.Exercises 57
Unit 2.2 58
A.Ethernet 58
B.科技英语的词法Ⅴ：创造新词 63
C.Readings： The “5-4-3” Rule for Ethernet 65
D.Exercises 67
Unit 2.3 68
A.Network Layer and Transport Layer： Delivery Between Host Processes 68
B.科技英语的语法特征 72
C.Readings： New Network Project Aims to Improve IT for theFuture of Rice 74
D.Exercises 79
Unit 2.4 81
A.Application Layer： Front-end for Users 81
B.科技英语的翻译Ⅰ 83
C.Readings： What Is UTF-8？ 85
D.Exercises 89
Part 3 Advanced Networking Topics 91
Unit 3.1 91
A.Network Security 91
B.科技英语的翻译方法Ⅱ 94
C.Readings： Security Management 97
D.Exercises 101
Unit 3.2 103
A.Searching for Information 103
B.科技英语的翻译Ⅲ 107
C.Readings：How to Search 109
D.Exercises 114
Unit 3.3 115
A.What Makes E-business Different 115
B.科技英语的翻译Ⅳ：成分分译 120
C.Readings： What Does the Internet Know About You？ 123
D.Exercises 129
Unit 3.4 130
A.The Internet of Things （Network of Things） 130
B.科技英语的翻译Ⅴ：长句的译法 138
C.Readings： Inter-vehicle Communication （IVC） 140
D.Exercises 143
附录A网络与通信常用术语及缩略语（The Terms and Abbreviations for Computer and Network Communication） 145
附录B部分练习题参考答案 159
参考文献 172