Unit 1 Sources of Energy 1
Text A Petroleum 2
Text B The Future ofAlternative Energy 10
Text C The Oceans—Man’s Last Great Resource 17
Translation Practice （1） 22
Writing Practice（1） 22
Unit 2 Social Science 25
Text A Making the Best of a Good Job 26
Text B How to Make a Powerful First Impression 34
Text C The Winner’s Guide to Success 40
Translation Practice（2） 44
Writing Practice（2） 44
Unit 3 Computers and Networks 49
Text A Talking with Your Computer 50
Text B An Introduction to Digital Computers 58
Text C Electronic Threats 65
Translation Practice（3） 72
Writing Practice（3） 73
Unit 4 The Environment 75
Text A Can We Make Garbage Disappear？ 76
Text B The Quest for Greener Fields 86
Text C The Environment—a Global Challenge 93
Translation Practice （4） 97
Writing Practice（4） 98
Unit 5 Finance 101
Text A Background to the Euro 102
Text B Principles ofTaxation 110
Text C Stocks Fundamental Theories 115
Translation Practice（5） 118
Writing Practice（5） 118
Unit 6 Space Exploration 121
Text A Our Picture ofthe Universe 122
Text B Sister Earth 130
Text C The Big Bang：It Sure Was Big 136
Translation Practice （6） 141
Writing Practice（6） 142
Unit 7 Business Administration 145
Text A Managerial Caricatures 146
Text B Is the Sun Setting on US Dominance？ 155
Text C WhatAre the Most ImportantAspects ofa Business？ 163
Translation Practice（7） 168
Writing Practice（7） 168
Unit 8 Bioscience 171
Text A GM Organisms 172
Text B Researchers Say Human Brain Is Still Evolving 182
Text C Eating by Numbers 187
Translation Practice（8） 191
Writing Practice（8） 192
Unit 9 Transportation 195
Text A Chrysler Develops Plastic Cars as the Future 196
Text B Levitating Trains 205
Text C Intelligent Conversation—with Your Car 210
Translation Practice（9） 214
Writing Practice（9） 215
Unit 10 Health 217
Text A Several Steps to a Better Brain（Ⅰ） 218
Text B Several Steps to a Better Brain（Ⅱ） 228
Text C Mood Makes Food Taste Different 234
Translation Practice（10） 237
Writing Practice（10） 237