CONTENTS 1
Unit 1 Brave New World 1
Text A Some Scientists Suggest Relativity May Be，Well，Relative 1
Text－orientated exerciss 7
Text B Scientists Discover a New Way to Slow Speed of Light 11
Text C Scientists Report Hottest，Densest Matter Ever Observed 16
Unit 2 An Age of Gene 21
Text A Is Race Real？ 21
Text B DNA Power Computing？Could Be？ 31
Text C Scientists Say They’ve Cloned a Horse 37
Unit 3 A Magic of Numbers 43
Text A Maths World Abuzz with Prime Proof 43
Text B Safety in Numbers 52
Text C Beckham in His Prime Number 57
Unit 4 Environmental Protection 63
Text A Pollution Scenario 63
Text－orientated exercises 68
Text B Climate Change Scenario 72
Text C Population Scenario 77
Text A Five Patents That Changed E－Business 83
Unit 5 E－Business 83
Text－orientated exercises 89
Text B Seeking an Edge 93
Text C Making Cents Can Make Sense 99
Unit 6 Economics 105
Text A Politics Rescue Euro From Stability Agreement 105
Text－orientated exercises 111
Text B U.S.－Europe Discord Rocks the Shared Economic Boat 115
Text C Tax Policy That Uses Economies of Scales 121
Text A Twilight of the PC Era？ 127
Unit 7 Information Technology 127
Text－orientated exercises 128
Text B The Lowdown on Downloads 138
Text C Commercial Software Aided Reboot on Mars 144
Unit 8 Health 151
Text A Give More Joy to Your World：Cut Holiday Stress 151
Text－orientated exercises 157
Text B Drug－Free Food 161
Text C You Are Not the Only One 167