使用说明 1
前言 1
Unit One The World of Robots 1
Unit Two Soapy s Winter Home 15
Unit Three Socrates 29
Unit Four Mackenzie s First Exploration 43
Unit Five In New York 59
Unit Six From Song to Sound 74
Unit Seven Inside Story 89
Unit Eight World-Famous Universities 104
Unit Nine Birth of an Island 119
Unit Ten Women s Liberation 134
Unit Eleven A Time for Change 151
Unit Twelve The Terrible Wave 168
Unit Thirteen The Sunspot Connection 182
Unit Fourteen Cops and Bobbies:How Different Are They? 196
Key to Study and Practice 212
Key to Model Tests 218
主要参考书目 221