Unit One
Part Ⅰ What Is Intelligence,Anyway?_2
Part Ⅱ Personal Benefits of Foreign Language Study_5
Part Ⅲ America's Foreign Language Crisis_11
Part Ⅳ Learning a Second Language:Weighing the Pros and Cons_13
Part Ⅴ An Additional Benefit of Learning a New Language_17
Unit Two
Part Ⅰ A Game of Light and Shade_24
Part Ⅱ When Summer Found Its Place in My Heart_27
Part Ⅲ The Importance of Healthy Family Relationships._32
Part Ⅳ Pros and Cons of the Nuclear Family_34
Part Ⅴ A Most Important Family Bond_40
Unit Three
Part Ⅰ Rites of Passage_46
Part Ⅱ Text Generation Gap:U R 2 Old_49
Part Ⅲ The Digital Generation Gap_55
Part Ⅳ How Can Age Diversity Affect Your Company? Here Are the Pros and Cons_57
Part Ⅴ Is Technology Creating a Family Divide?_62
Unit Four
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