Unit One Mysteries of the Sea 1
Unit Two Chemistry Affects Our Lives 9
Unit Three The Wright Brothers 17
Unit Four The Discovery of Radar 25
Unit Five The View from Out There 35
Unit Six Albert Einstein 44
Unit Seven San Francisco 55
Unit Eight How To Do Business Successfully 64
Unit Nine John Hunter 73
Unit Ten Use SQ3R 82
Unit Eleven Museums in the Modern World 92
Unit Twelve Aristotle 102
Unit Thirteen The Church of England 110
Unit Fourteen Why Don't Girls Think Like Boys? 120
Unit Fifteen Liszt 129
Unit Sixteen The Voices of Time 138
Unit Seventeen The Secrets of Sleep 147
Unit Eighteen The Man Who Made the Railroads Safe 156
Unit Nineteen Speech Communities 165
Unit Twenty How to Avoid Foolish Opinions 175
Vocabulary 186
List of Phrases and Expressions 207
Key 210