Book one 1
Unit 1 How to Improve Your Study Habits 1
Unit 2 Sailing Round the World 7
Unit 3 The Present 13
Unit 4 Turning Off TV:A Quiet Hour 18
Unit 5 A Miserable,Merry Christmas 24
Unit 6 Sam Adams,Industrial Engineer 30
Unit 7 The Sampler 36
Unit 8 You Go Your Way,Ill Go Mine 41
Unit 9 The Brain——The Most Powerful Computer in the Universerse 47
Unit 10 Going Home 53
Book Two 60
Unit 1 Is There Life on Earth? 60
Unit 2 The Dinner Party 66
Unit 3 Lessons From Jefferson 72
Unit 4 My First Job 78
Unit 5 The Professor and the Yo-Yo 84
Unit 6 The Making of a Surgeon 90
Unit 7 There s Only Luck 97
Unit 8 Honesty:Is Is Going Out of Style? 104
Unit 9 What Is Intelligence,Anyway? 111
Unit 10 Profits of Praise 118
Book Three 125
Unit 1 A Brush With the Law 125
Unit 2 The Woman Who Who Would Not Tell 132
Unit 3 Why I Teacb 138
Unit 4 Lady Hermits Who Are Down But Not Out 145
Unit 5 The Day Mother Cried 152
Unit 6 A Day s Wait 158
Unit 7 The Shelter 164
Unit 8 Daydream a Little 171
Unit 9 The Death of Hitler 178
Unit 10 The Fantastic Spurt in Technology 185
Book Four 192
Unit 1 Big Bucks the Easy Way 192
Unit 2 Deer and the Energy Cycle 197
Unit 3 Why Do We Believe That the Earth Is Round 202
Unit 4 Jim Thorpe 207
Unit 6 HoW to Mark a Book 217
Unit 7 The New Caves 228
Unit 8 The New Caves 228
Unit 9 Journey West 232
Unit 10 Why People Work 237
Key for Refereoce 243