科技英语教程 上PDF电子书下载

Lesson One 1

Sound and the Effects of Noise on People 1

Lesson Two 12

Electric Cars 12

Lesson Three 22

Copyright 22

Lesson Four 33

Telecommunication Satellite 33

Lesson Five 44

Climate Science 44

Lesson Six 55

Smart T-shirts Can Sound the Alarm 55

Toward a Greener Revolution 68

Lesson Seven 68

Lesson Eight 78

Solar Energy from the Tropical Oceans 78

Lesson Nine 87

The Race with Technology 87

Lesson Ten 98

Peering into the Future of Weather Cycles 98

Lesson Eleven 110

How to Eat for More Energy 110

Lesson Twelve 119

Who Gets Cancer 119

Lesson Thirteen 128

The Champion Scrubber—Polisher 128

Lesson Fourteen 136

Anesthesia for the Bottlenose Dolphin 136

Project Justification 144

Lesson Fifteen 144

Lesson Sixteen 154

A Guide for Computer Phobics 154

Lesson Seventeen 164

A Box Filled with Goodies 164

Lesson Eighteen 173

The Future of Photography 173

Lesson Nineteen 183

Video Trends 183

Lesson Twenty 192

Digital Image Technology 192

Lesson Twenty-One 202

Upsetting the Balance of Nature 202

Lesson Twenty-Two 211

Cold Remedies 211

There s No Way to Go but Ahead 220

Lesson Twenty-Three 220

Lesson Twenty-Four 232

Causes of Mental Retardation 232

Lesson Twenty-Five 241

Ozone Loss and Global Warming 241

Lesson Twenty-Six 252

PVC Properties 252

Lesson Twenty-Seven 262

The Development of Mobile Communications in Cellular Phones 262

Lesson Twenty-Eight 273

Allocating Spectrum for Cellular Telephones:US Experience and Issues 273

Lesson Twenty-Nine 284

Recycling of Polymers 284

Lesson Thirty 294

Advanced Composite Materials and Applications 294