Unit 1 1
Passage A What is Safe to Eat? 1
Passage B Longevity Affected by Heredity,Diet,Stress 5
Passage C Heart Problems Linked to Seasons 8
Unit 2 11
Passage A The Meaning of Life 11
Passage B Life Problems and Solutions 14
Passage C Confront Hurdles in Life 17
Unit 3 20
Passage A Learning Science 20
Passage B Space-Age Archeology 23
Passage C Time and Machine 26
Unit 4 30
Passage A Chinese Industry Races to Make Global Name for Itself 30
Passage B Interactive Digital TV in Asia 35
Passage C Concept Cars Offer Glimpses of the Future 39
Unit 5 43
Passage A Good Parenting is No Easy Job 43
Passage B Should You Spy on Your Teen? 47
Passage C Real Vision 52
Unit 6 55
Passage A Atmospheric Science 55
Passage B Pay for Pollution 59
Passage C The Earth's Spreading Desert 63
Unit 7 66
Passage A Man Searches for Life in Space 66
Passage B Prospecting the Moon 70
Passage C Cassini Probe to Saturn is First to the Moon of Another Planet 73
Unit 8 77
Passage A What is New in Computer World 77
Passage B Microprocessor Applications 81
Passage C Marketing is Changing,Thanks to the Internet 85
Unit 9 89
Passage A Learning the Difference Between Play and Sport 89
Passage B Organized Sports and Recreation(Ⅰ) 93
Passage C Organized Sports and Recreation(Ⅱ) 97
Unit 10 101
Passage A Independence Day,July 4th(Ⅰ) 101
Passage B Independence Day,July 4th(Ⅱ) 105
Passage C The History of Thanksgiving Day 109
Unit 11 113
Passage A Louis Armstrong,Mr.Jazz 113
Passage B Barbershop Harmony 118
Passage C The Art of the Skyscraper 120
Unit 12 123
Passage A Office Automation 123
Passage B Tomorrow's Telephones 128
Passage C Airplanes:Yesterday,Today,and Tomorrow 133
Unit 13 137
Passage A Culture Shock 137
Passage B An African Student in the United States 139
Passage C Straddling Cultural Divides with Grace 143
Unit 14 147
Passage A The Nature of Economics 147
Passage B Money 150
Passage C History of International Trade 153
Unit 15 157
Passage A Table Manners 157
Passage B British Pub Etiquette and Customs 160
Passage C What's in an Indian's Name? 164
Unit 16 167
Passage A Sharing Economic Losses Through Insurance 167
Passage B Problems with Promotions 172
Passage C The Cash-free Society 177
Unit 17 182
Passage A The Place Where East Meets West 182
Passage B Washington,D.C. 187
Passage C The Great Cities of the Future 191
Unit 18 195
Passage A The Man Who Made Mickey Mouse 195
Passage B "Free at Last" 200
Passage C John Kepler 203
Unit 19 208
Passage A The Problem of Adjustment in New Cultural Environments 208
Passage B A New Berlin Wall 213
Passage C America:Neither Paradise Nor Hell 217
Unit 20 221
Passage A I Got My B.A.by Sheer Luck 221
Passage B It's Never Too Late for Success 225
Passage C Secrets of Straight-A Students 229
Key to Exercises 234