Unit 1-1 After the Great Fire 1
Unit 1-2 Language Learning 8
Unit 1-3 The Enormous Strength 12
Unit 1-4 The Standard of Living 17
Unit 2-1 Bicycles 21
Unit 2-2 Children and Education 24
Unit 2-3 Two Types of People 29
Unit 2-4 Economic Systems 34
Unit 3-1 England s Railway Lines 39
Unit 3-2 A Ship of Ice 43
Unit 3-3 Kurzweil Reading Machine 50
Unit 3-4 Shipment 54
Unit 4-1 Donors Needed to Help Avert Blood Shortage 59
Unit 4-2 A Problem of Education 65
Unit 4-3 Rent Control in the United States 70
Unit 4-4 Inflation 74
Unit 5-1 The Art of Apologizing 78
Unit 5-2 The Bermuda Triangle 82
Unit 5-3 Earthquake Prediction in China 87
Unit 5-4 International Trade 92
Unit 6-1 Desert Park Defies Belief 97
Unit 6-2 Jazz 102
Unit 6-3 Androcles and the Lion 108
Unit 6-4 WTO Entrance Benefits All 113
Unit 7-1 Olympic Games 117
Unit 7-2 Education in the United States 124
Unit 7-3 Hope Has Little Meaning for Blackfoot Indians 133
Unit 7-4 China Insurance Market Opens Up 139
Unit 8-1 Alfred Nobel-a Man of Contrasts 143
Unit 8-2 Eskimos in a Changing World 148
Unit 8-3 We Japanese 155
Unit 8-4 A Historical Perspective on the American Economy 163
Unit 9-1 Wilt Chamberlain 168
Unit 9-2 Chinese Americans 173
Unit 9-3 Life in the Universe 178
Unit 9-4 New Port Puts out Welcome Mat 183
unit 10-1 Telepathy 189
Unit 10-2 A Look at the Future 195
Unit 10-3 Sports around the World 202
Unit 10-4 The Place of Money in the Economy 208
Unit 11-1 Cultural Survival，Inc. 213
Unit 11-2 Dreams that Saved Lives 219
Unit 11-3 What People Don t Know about Air 226
Unit 11-4 Entrepreneurs Who Lost Their Money during the Olympic Games 232
Unit 12-1 Early Birds 239
Unit 12-2 The Prince and the Judge 244
Unit 12-3 Cheaper and Better Than Drugs 252
Unit 12-4 New Tariff Regulation to Benefit Economy 261
Unit 13-1 Hang Gliding 266
Unit 13-2 Energy and Building Design 274
Unit 13-3 Women in the Former Soviet Union 282
Unit 13-4 A Mixed Economy：the United States System 290
Unit 14-1 Opinion on Youth 296
Unit 14-2 Expert Says Arctic Ocean will Soon Be an Open Sea 304
Unit 14-3 Body Language 311
Unit 14-4 American Agriculture 319
Unit 15-1 Television 325
Unit 15-2 An Animal Survival Lesson for Mankind 332
Unit 15-3 Using the Mind against Disease 339
Unit 15-4 The American Dollar and the World Economy 348
附录：Key to Exercises 355