大学英语综合拓展训练 第3册PDF电子书下载

Unit 1 Love without Limitations 1

Part One 1

Part Two 4

Unit 2 Iron and the Effects of Exercise 18

Part One 18

Part Two 21

Unit 3 Where Principles Come First 36

Part One 36

Part Two 41

Unit 4 Five Famous Symbols of American CulturePart One 58

Part Two 63

Unit 5 Graceful Hands 77

Part One 77

Part Two 80

Unit 6 How to Prepare for Earthquakes 94

Part One 94

Part Two 97

Unit 7 Bill Gates 111

Part One 111

Part Two 116

Unit 8 Legal and Moral Implications of CloningPart One 131

Part Two 135

Unit 9 Premarital Agreements 150

Part One 150

Part Two 153

Unit 10 The Challenging Friend I Don't Know 168

Part One 168

Part Two 171