Book One 3
Unit 1 How to Improve Your Study Habits 3
Unit 2 Sailing Round the World 36
Unit 3 The Present 54
Unit 4 Turning off TV：A Quiet Hour 66
Unit 5 A Miserable, Happy Christmas 82
Unit 6 Sam Adams, Industrial Engineer 89
Unit 7 The Sampler 100
Unit 8 You Go Your Way, I'll Gp Mine 111
Unit 9 The Brain 113
Unit 10 Going Home 119
Book Two 123
Unit 1 Is There Life On Earth? 123
Unit 2 The Dinner Party 126
Unit 3 Lessons from Jefferson 131
Unit 4 My First Job 137
Unit 5 The Professor and the Yo-Yo 140
Unit 6 The Making of a Surgeon 143
Unit 7 There's Only Luck 146
Unit 8 Honesty：Is It Going out of Style? 152
Unit 9 What Is Intelligence, Amyway? 157
Unit 10 Profits of Praise 162
Book Three 169
Unit 1 A Brush with the Law 169
Unit 2 The Woman Who Would Not Tell 172
Unit 3 Why I Teach 174
Unit 4 Lady Hermits Who Are Down But Not Out 176
Unit 5 The Day Mother Cried 180
Unit 6 A Day's Wait 186
Unit 7 The Shelter 193
Unit 8 Daydream a Little 197
Unit 9 The Death of Hitler 200
Unit 10 The Fantastic Spurt in Technology 205
Book Four 211
Unit 1 Big Buck the Easy Way 211
Unit 2 Deer and the Energy Cycle 213
Unit 3 Why Do We Believe That the Earth Is Round ? 215
Unit 4 Jim Thorpe 219
Unit 5 To Lie or Not to Lie—The Doctor's Dilemma 221
Unit 6 How to Mark a Book 224
Unit 7 The Luncheon 229
Unit 8 The New Caves 233
Unit 9 journcy West 235
Unit 10 Why People Work 239