Book1 1
Unit 1 How to Improve Your Study Habits 1
Unit 2 Sailing Around the World 29
Unit 3 The Present 47
Unit 4 Turning off T.V.:A Quiet Hour 52
Unit 5 A Miserable,Merry Christmas 61
Unit 6 Sam Adams,Industrial Engineer 65
Unit 7 The Sample 74
Unit 8 You Go Your Way,I'll Go Mine 83
Unit 9 The Brain 90
Unit 10 Going Home 96
Book2 103
Unit 1 Is There Life On Earth? 103
Unit 2 The Dinner Party 110
Unit 3 Lessons From Jefferson 114
Unit 4 My First Job 119
Unit 5 The Professor And the Yo-Yo 126
Unit 6 The Making of a Surgeon 132
Unit 7 There's Only Luck 136
Unit 8 Honesty:Is It Going out of Style 143
Unit 9 What Is Intelligence,Anyway? 149
Unit 10 Profits of Praise 154
Book3 160
Unit 1 A Brush With the Law 160
Unit 2 The Woman Who Would Not Tell 167
Unit 3 The Fantastic Spurt in Technology 172
Unit 4 Lady Hermits Whó Are Down But Not Out 178
Unit 5 The Day Mother Cried 185
Unit 6 Why I Teach 192
Unit 7 The Shelter 197
Unit 8 Daydream A Little 210
Unit 9 The Shameful End of Hitler 217
Unit 10 Big Bucks the Easy Way 224
Book4 229
Unit 1 A Day's Wait 229
Unit 2 Deer and the Energy Cycle 235
Unit 3 Why Do We Believe That the Earth Is Round? 241
Unit 4 Jim Thorpe 247
Unit 5 To Lie or Not to Lie-The Doctor's Dilemma 251
Unit 6 How to Mark a Book 261
Unit 7 The Luncheon 269
Unit 8 The New Caves 278
Unit 9 Journey West 281
Unit 10 Why People Work 287