Unit 1

Text A-1 The Hidden Secrets of the Creative Mind

Text A-2 Willis Haviland Carrier—the Father of Cool

Text B-1 T homas Adams and the Invention of Chewing Gum

Text B-2 Einstein：Thinker and Inventor of the Modern World

Unit 2

Text A-1 Metropolitan Life Insurance

Text A-2 What Do American Consumers Like?

Text B-1 How Postoptics Gets 58％ of Its Online Sales through Google Advertising

Text B-2 Two Kinds of American Business Heroes

Unit 3

Text A-1 Technology in Workplace Widens Generation Gap

Text A-2 Matchmaking in the 21st Century：Technology and Yesterday's Values Can Connect

Text B-1 Online Shopping

Text B-2 Some Benefits ofSpace Technology

Unit 4

Text A-1 How to Find Meaning in Your Work and Your Life

Text A-2 Staying Happy

Text B-1 "Journalist...Rewarding,but Very Political"

Text B-2 A University Diploma

Unit 5

Text A-1 Online Database Pinpoints Plagiarism

Text A-2 the Brain Revolution and Ethics

Text B-1 Survey：Many Students Say Cheating's OK

Text B-2 The Commercialization of Higher Education

Unit 6

Text A-1 Modern Life：It's One Step at a Time,Only Much Quicker

Text A-2 Welcome to"the New Busy"

Text B-1 Ready to Snap：Crazy,Busy and the Lure of Modern Life

Text B-2 Laughter in a Busy World

Unit 7

Text A-1 The Bounty of the Sea

Text A-2 Man and Nature

Text B-1 Trash Troubles

Text B-2 Naturalist Has Whale of a Time in Alaska

Unit 8

Text A-1 At Century's End,a Nostalgic Glance Back

Text A-2 Flight：An Invention That Shrank the World

Text B-1 The Digital Age

Text B-2 The Creation of the Automotive World

Appendix

Key to Comprehension Exercises