科技英语综合教程PDF电子书下载

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