大学英语同步辅导 第3册PDF电子书下载

BOOK FOUR 1

Unit One Big Bucks the Easy Way 1

Unit Two Dear and the Energy Cycle 26

Unit Three Why Do We Believe That the Earth Is Round? 46

Unit Four Jim Thorpe 77

Unit Five To Lie or Not to Lie——The Doctor's Dilemma 100

Unit Six How to Mark a Book 133

Unit Seven The Luncheon 153

Unit Eight The New Caves 175

Unit Nine Journey West 190

Unit Ten Why People Work? 222