21世纪大学新英语长篇阅读 4PDF电子书下载

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Unit 1 COLLEGE EDUCATION 1

Passage 1 Universities Branch Out 3

Passage 2 What Good Is a College Education Anyway？ 8

Passage 3 Colleges Taking Another Look at the Value of Merit-based Aid 13

Unit 2 SCIENCE AND SUPERSTITION 19

Passage 1 Bermuda Triangle：Behind the Intrigue 21

Passage 2 Are You Superstitious？ 26

Passage 3 What Is Science？What Is Pseudoscience？ 31

Unit 3 OLD AND YOUNG 39

Passage 1 The New Old and the Conserva-teen 41

Passage 2 The Secrets of Long L ife Revealed？ 47

Passage 3 Reverse Age ism 52

Unit 4 SPORTS AND HEALTH 59

Passage 1 The Truth about Sports and Weight Loss 61

Passage 2 Health Benefits of Exercise 67

Passage 3 The Role of Exercise in My Life 73

Unit 5 HAPPINESS 79

Passage 1 How to Find Happiness in a Nine to Five Job 81

Passage 2 Finding Happiness：How to Appreciate the Little Things in Life—Small Ways to Find Joy in the Everyday Experience 87

Passage 3 Three Treasure Boxes—The Pursuit of Happ iness 92

Unit 6 ECOLOGY 99

Passage 1 We Can't Wish Away Cl imate Change 101

Passage 2 Going Green Without Going Broke 107

Passage 3 Overpopulation Is the Main Threat to the Planet 113

Unit 7 TECHNOLOGY AND PROGRESS 121

Passage 1 Does Technology Improve Qual ity of Our Lives？ 123

Passage 2 Technology and Our Dependence upon It 128

Passage 3 Caught in the Web—Undesirable Effect of Internet Technology 134

Unit 8 HUMANITY AND NATURE 141

Passage 1 A Grassroots Remedy 143

Passage 2 The Nature of Human Body—Chinese Explanation of Body Clock 148

Passage 3 An Unlikely Way to Save a Species：Serve It for Dinner 155

Appendix Keys and Answers 163

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