新版大学英语精读学习指导 第4分册PDF电子书下载

Unit One Big Bucks the Easy Way 1

Unit Two Deer and the Energy Cycle 17

Unit Three Why Do We Believe That the Earth Is Round? 32

Unit Four Jim Thorpe 46

Unit Five To Lie or Not to Lie-the Doctor's Dilemma 61

Unit Six How to Mark a Book 78

Unit Seven The Luncheon 98

Unit Eight The New Caves 119

Unit Nine Journey West 135

Unit Ten Why People Work 152