PASSAGE 1 Yellow Fever 1
PASSAGE 2 Intelligence in Animals 7
PASSAGE 3 Electronic Burglar Alarms 13
PASSAGE 4 America's New Recession 20
PASSAGE 5 The Discovery of a Sunken Ship 28
PASSAGE 6 Man Hunters of the USA 35
PASSAGE 7 Frank Turner 41
PASSAGE 8 The Interaction of Body and Mind 49
PASSAGE 9 The Land and the People 56
PASSAGE 10 Supermarkets 63
PASSAGE 11 Sex on the Job 70
PASSAGE 12 From the Other Side of the Generation Gap 78
PASSAGE 13 A Virtual University 85
PASSAGE 14 WTO Finds US Trade Damaged bv EU Beef Import Ban 93
PASSAGE 15 Two Major Parties in Britain 101
PASSAGE 16 Reeds，Pens and Beyond 108
PASSAGE 17 Why Tortoise's Shell Is Not Smooth 114
PASSAGE 18 How Hurricanes Get Their Names 121
PASSAGE 19 Indo-European Languages 128
PASSAGE 20 Death:a Part of Life 134
PASSAGE 21 Tame Volcanoes 141
PASSAGE 22 The Secret Language of Barrier Signals 148
PASSAGE 23 The Birth of Jesus 156
PASSAGE 24 The Man with the Jade Mask 163
PASSAGE 25 The Piece of String 170
PASSAGE 26 Robert Baden-Powell，Secret Agent 178
PASSAGE 27 Stuck on Stamps 185
PASSAGE 28 The American Tax System 192
PASSAGE 29 We Are Not a Nation of Tax Cheats 199
PASSAGE 30 Insurance 207
PASSAGE 31 Investment Banking Companies 214
PASSAGE 32 Weather Catastrophe—Then and Now? 222
PASSAGE 33 Bittersweet Companions 230
PASSAGE 34 Safeguarding Life 239
PASSAGE 35 The Red Data Books 247
PASSAGE 36 The First Ecologists 256
PASSAGE 37 Twins，Genes and Environment 265
PASSAGE 38 The Antler Riddle 273
PASSAGE 39 Beneath the Canopy 280
PASSAGE 40 Paralinguistic Communication 287
APPENDIX Vocabulary 293