大学英语·精读辅导 第4册PDF电子书下载

Unit1 Big Bucks the Easy Way 1

Unit2 Dear and the Energy Cycle 18

Unit3 Why Do We Believe That the Earth Is Round? 36

Unit4 Jim Thorpe 53

Unit5 To Lie or Not to Lie--The Doctor s Dilemma 67

Unit6 How to Mark a Book? 82

Unit7 The Luncheon 99

Unit8 The New Caves 116

Unit9 Journey West 132

Unit10 Why People Work 148