Unit 1　After a Vicious Attack 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　In Stopping to Save Woman, Rescuers Saved Themselves (Ⅰ) 　　　Text 2　In Stopping to Save Woman, Rescuers Saved Themselves (Ⅱ) 　　　Text 3　In Stopping to Save Woman, Rescuers Saved Themselves (Ⅲ) Unit 2　Cloning — Pandora's Box? 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Human Cloning — Is That Possible? (Ⅰ) 　　　Text 2　Human Cloning — Is That Possible? (Ⅱ) 　　　Text 3　The First Cloned Human Embryo Unit 3　Conflicts in Our Modern Civilization 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　The Next Pattern of Conflict 　　　Text 2　The Nature of Civilizations 　　　Text 3　Rethinking Segregation Beyond Black and White Unit 4　The Mind and the Body 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Secret Power of Pets 　　　Text 2　More Than Just a Smell 　　　Text 3　Memory and Context of Learning Test Yourself (1) Unit 5　Economy 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Looking Back at the Crash of 1929: Then, as Now, a New Era 　　　Text 2　Through the Wringer 　　　Text 3　A Dangerous Addiction Unit 6　Gene Family — a Pacemaker in Genetic Domain 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Columbia's First Gene Therapy Trial 　　　Text 2　New Gene Family for Pacemaker Activity 　　　Text 3　Transgenic Mice Unit 7　Speeches of Famous Persons 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　I Have a Dream 　　　Text 2　Speech of Gore (1) 　　　Text 3　Speech of Gore (2) Unit 8　Early Education 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Take Back the Class, One Row at a Time 　　　Text 2　Technology vs Textbooks 　　　Text 3　Reading Must Be Learned Early Test Yourself (2) Unit 9　Our Mood, Psychology and Health 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Hunting the Cause of Winter Depression 　　　Text 2　I Think I Can Be Healthy 　　　Text 3　Spirituality Prevents Depression in Old Age Unit 10　Water 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　Possible Water Shortage 　　　Text 2　The Importance of Water for Life 　　　Text 3　The Trade in Animals Unit 11　Our Social Lives 　Part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　The Great Changes in People's Lives 　　　Text 2　Challenges for Today's Parents 　　　Text 3　Who Is Crazy? Unit 12　Our Global Ecology 　part One　Timed Reading 　Part Two　Reading Comprehension and Vocabulary Development 　　　Text 1　 Built Environemnt in Industrial Ecology 　　　Text 2　Ecological Risk Assessment 　　　Text 3　Endangered Landscape Test Yourself (3) Key Glossary