21世纪科技英语 下PDF电子书下载

Unit 1 1

Text A Landmarks of Modern Science(1) 1

Text B Landmarks of Modern Science(2) 12

Preparing Technical Articles for Publication 16

Unit 2 21

Text A The Finding Devices in a Scientific Reference Book 21

Text B Nanometer and New Superconductive Material 31

Unit 3 37

Text A The Modern Popular Science 37

Text B Modern Managing Technology 45

Writing Scientific Essays 49

Unit 4 53

Text A From GATT to WTO—The Institutionalization of World Trade(Ⅰ) 53

Text B From GATT to WTO—The Institutionalization of World Trade(Ⅱ) 63

Unit 5 69

Text A New Horizon for Tomorrow's Electrical and Electronic Engineering 69

Text B World Wide Web 78

Appeal to Readers 81

Practice ExerciseⅠ 85

Text A Scientific Knowledge and the Young Scientist 99

Unit 6 99

Text B Measurement of Electricity and Electric Units 104

Unit 7 109

Text A Vision 2020 109

Text B Global Water Shortage 117

Improving Oral Presentations 124

Unit 8 127

Text A The AAAS Meeting 127

Text B EI Ni？o and Air Pollution 132

Text A E-Business(1) 137

Unit 9 137

Text B E-Business(2) 143

Authenticity Beats Eloquence 148

Unit 10 153

Text A Virtual Reality Technology 153

Text B Taking Responsibility for the Survival of Humankind 160

Practice Exercise Ⅱ 165

Test Yourself 177

Key to Exercises 190

Glossary 208