英语 第4册PDF电子书下载

Unit One 1

Part A Intensive Reading:Soil Losses Eroding Food Security 1

Exercises 5

Part B Translation Techniques（E-C）:Correct Approach to Translation 10

Exercises 13

Part C Extensive Reading: 14

Ⅰ．Fresh Water Factories 14

Ⅱ．The Earth's Spreading Deserts 18

Unit Two 23

Part A Intensive Reading: Our Environment 23

Exercises 26

Part B Translation Techniques（E-C）:Selection and Extension of Word Meaning 31

Exercises 35

Part C Extensive Reading: 37

Ⅰ．Auto Called No.1 Health Enemy 37

Ⅱ．Peril From the Sky 42

Unit Three 48

Part A Intensive Reading:Smoking and Health 48

Exercises 54

Part B Translation Techniques（E-C）: 57

Conversion of Parts of Speech and Sentence Elements Exercises 61

Part C Extensive Reading: 63

Ⅰ．Smoking and Cancer 63

Ⅱ．Drug Addiction in the United States 67

Unit Four 73

Part A Intensive Reading:How to Study 73

Exercises 78

Part B TranslationTechniques（E-C）:Omission 82

Exereises 88

Part C Extensive Reading: 90

Ⅰ．Science——a Way of Thinking 90

Ⅱ．Science and Scientific Methods 94

Unit Five 101

Part A Intensive Reading:The Importance of G ood Manners Exercises 106

Part B Translation Techniques（E-C）:Amplification and Repetition 110

Exercises 115

Part C Extensive Reading: 117

Ⅰ．Mind Your Manners 117

Ⅱ．American Friendship Patterns 121

Unit Six 127

Part A Intensive Reading:Science and International Co-operation 127

Exercises 131

Part B Translation Techniques（E-C）: 135

Handling of Long or Complex Sentences 135

Exercises 141

Part C Extensive Reading: 144

Ⅰ．World Trade 144

Ⅱ．The World in One Building 149