Unit One Is There Life on Earth? 1
Unit Two The Dinner Party 32
Unit Three Lessons From Jefferson 57
Unit Four My First Job 91
Unit Five The Professor and the Yo-Yo 119
Unit Six The Making of a Surgeon 154
Unit Seven There's Only Luck 179
Unit Eight Honesty:Is It Going out of Style? 212
Unit Nine What Is Intelligence,Anyway? 250
Unit Ten Profits of Praise 278
Appendix Ⅰ（四六级题选答案） 312
Appendix Ⅱ（语法结构） 314
Appendix Ⅲ（语言要点） 317