大学体验英语扩展教程 3PDF电子书下载

Unit 1 Caring for Our Earth 1

Unit 2 Nobel Prize Winners 9

Unit 3 Famous Brand Name 19

Unit 4 Cloning and Ethics 28

Self-assessment Test(Unit 1—Unit 4) 37

Unit 5 Life-long Education 47

Unit 6 Travel Around the World 56

Unit 7 Drug Abuse 65

Unit 8 Conflicts in the World 74

Self-assessment Test(Unit 5—Unit 8) 83

Self-assessment Test(Unit 1—Unit 8) 93

Refecence Keys to Exercises 103

Translation for Reference 140

Glossary 156

List of Phrases and Expressions 172

Proper Names 175