Unit 1 1
Text A-1 The Hidden Secrets of the Creative Mind 1
Text A-2 Willis Haviland Carrier—the Father of Cool 4
Text B-1 T homas Adams and the Invention of Chewing Gum 8
Text B-2 Einstein：Thinker and Inventor of the Modern World 11
Unit 2 17
Text A-1 Metropolitan Life Insurance 17
Text A-2 What Do American Consumers Like? 20
Text B-1 How Postoptics Gets 58％ of Its Online Sales through Google Advertising 23
Text B-2 Two Kinds of American Business Heroes 26
Unit 3 31
Text A-1 Technology in Workplace Widens Generation Gap 31
Text A-2 Matchmaking in the 21st Century：Technology and Yesterday's Values Can Connect 34
Text B-1 Online Shopping 37
Text B-2 Some Benefits ofSpace Technology 40
Unit 4 45
Text A-1 How to Find Meaning in Your Work and Your Life 45
Text A-2 Staying Happy 48
Text B-1 "Journalist...Rewarding,but Very Political" 52
Text B-2 A University Diploma 55
Unit 5 59
Text A-1 Online Database Pinpoints Plagiarism 59
Text A-2 the Brain Revolution and Ethics 62
Text B-1 Survey：Many Students Say Cheating's OK 66
Text B-2 The Commercialization of Higher Education 69
Unit 6 73
Text A-1 Modern Life：It's One Step at a Time,Only Much Quicker 73
Text A-2 Welcome to"the New Busy" 75
Text B-1 Ready to Snap：Crazy,Busy and the Lure of Modern Life 79
Text B-2 Laughter in a Busy World 82
Unit 7 85
Text A-1 The Bounty of the Sea 85
Text A-2 Man and Nature 88
Text B-1 Trash Troubles 91
Text B-2 Naturalist Has Whale of a Time in Alaska 94
Unit 8 99
Text A-1 At Century's End,a Nostalgic Glance Back 99
Text A-2 Flight：An Invention That Shrank the World 102
Text B-1 The Digital Age 107
Text B-2 The Creation of the Automotive World 110
Appendix 115
Key to Comprehension Exercises 115