Unit 1 Is There Life on Earth? 1
Unit 2 The Dinner Party 18
Unit 3 Lessons from Jefferson 33
Unit 4 My First Job 50
Unit 5 The Professor and the Yo-Yo 63
Unit 6 The Making of a Surgeon 77
Unit 7 There s Only Luck 93
Unit 8 Honesty: Is It Going out of Style 109
Unit 9 What Is Intelligence, Anyway? 123
Unit 10 Profits of Praise 140
课文参考译文 157