科技英语教程 上PDF电子书下载

Lesson One Sound and the Effects of Noise on People 1

Lesson Two Electric Cars 12

Lesson Three Copyright 22

Lesson Four Telecommunication Satellite 33

Lesson Five Climate Science 44

Lesson Six Smart T-shirts Can Sound the Alarm 55

Lesson Seven Toward a“Greener”Revolution 68

Lesson Eight Solar Energy from the Tropical Oceans 78

Lesson Nine The Race with Technology 87

Lesson Ten Peering into the Future of Weather Cycles 98

Lesson Eleven How to Eat for More Energy 110

Lesson Twelve Who Gets Cancer 119

Lesson Thirteen The Champion Scrubber-Polisher 128

Lesson Fourteen Anesthesia for the Bottlenose Dolphin 136

Lesson Fifteen Project Justification 144

Lesson Sixteen A Guide for Computer Phobics 154

Lesson Seventeen A Box Filled with Goodies 164

Lesson Eighteen The Future of Photography 173

Lesson Nineteen Video Trends 183

Lesson Twenty Digital Image Technology 192

Lesson Twenty-One Upsetting the Balance of Nature 202

Lesson Twenty-Two Cold Remedies 211

Lesson Twenty-Three There’s No Way to Go but Ahead 220

Lesson Twenty-Four Causes of Mental Retardation 232

Lesson Twenty-Five Ozone Loss and Global Warming 241

Lesson Twenty-Six PVC Properties 252

Lesson Twenty-Seven The Development of Mobile Communications in Cellular Phones 262

Lesson Twenty-Eight Allocating Spectrum for Cellular Telephones：US Experience and Issues 273

Lesson Twenty-Nine Recycling of Polymers 284

Lesson Thirty Advanced Composite Materials and Applications 294