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SECTION Ⅰ LESSONS 1

Lesson 1 WHAT IS POLLUTION? 1

Lesson 2 TYPES OF POLLUTION 3

Lesson 3 NATURAL WATER AND WATER POLLUTION 5

Lesson 4 OXYGEN IN WATER 9

Lesson 5 DISSOLVED OXYGEN 12

Lesson 6 BIOCHEMICAL OXYGEN DEMAND 15

Lesson 7 CHEMICAL OXYGEN DEMAND 18

Lesson 8 WASTEWATER TREATMENT 20

Lesson 9 BIODEGRADATION 24

Lesson 10 AQUATIC LIFE 27

Lesson 11 SAMPLING OF WATER SAMPLES 31

Lesson 12 EUTROPHICATION 34

Lesson 13 SURFACTANTS 38

Lesson 14 SEPARATION TECHNIQUE OF SAMPLES 41

Lesson 15 ION EXCHANGE AND SOLVENT EXTRACTION 45

Lesson 16 IMPORTANCE AND COMPOSITION OF THE ATMOSPHERE 49

Lesson 17 POLLUTANTS IN THE ATMOSPHERE 53

Lesson 18 SAMPLING OF AIR SAMPLES 57

Lesson 19 THE EFFECTS OF ATMOSPHERIC POLLUTION 62

Lesson 20 TEMPERATURE INVERSIONS 66

Lesson 21 THE GREENHOUSE EFFECT 69

Lesson 22 PHOTOCHEMICAL SMOG 73

Lesson 23 ACID RAIN 77

Lesson 24 STRATOSPHERIC OZONE 81

Lesson 25 RADIOACTIVITY 87

Lesson 26 ENVIRONMENTAL CHEMISTRY OF SOIL 93

Lesson 27 FERTILIZERS 97

Lesson 28 PESTICIDES 101

Lesson 29 EFFECTS OF NOISE POLLUTION 104

Lesson 30 THERMAL POLLUTION 108

Lesson 31 EFFECTS OF TEMPERATURE ON AQUATIC ORGANISMS 111

Lesson 32 ENVIRONMENTAL IMPACT ASSESSMENT 114

Lesson 33 HOW DO ECOSYSTEMS WORK? 117

Lesson 34 BIOLOGICAL CONTROL 121

Lesson 35 URBAN HEAT ISLAND EFFECT 124

Lesson 36 THE DEVELOPMENT OF ENVIRONMENTAL SYSTEMS 128

Lesson 37 THE URBAN ENVIRONMENT 132

Lesson 38 THE CRISIS OF ENVIRONMENT 135

SECTION Ⅱ READING MATERIALS 138

Text 1 THE SMELL OF WEALTH 138

Text 2 LOST FORESTS LEAVE WEST AFRICA DRY 140

Text 3 ECOTOURISM 142

Text 4 CLEAN PRODUCTION 145

Text 5 BENEFITS OF EI NINO PREDICTION 149

Text 6 HEALTH IMPACTS OF OZONE DESTRUCTION 152

Text 7 PROTECTING THE LAND 155

Text 8 ENVISIONING A SUSTAINABLE FUTURE 159

Text 9 CHINA'S SEA AREA 164

Text 10 CHINA'S CLIMATE 166

Text 11 CHINA'S LAKES 168

Text 12 CHINA'S RIVERS 170

Text 13 THE GEOGRAPHICAL FEATURES OF CHINA 172

Text 14 CHINA'S FLORA AND FAUNA 174

Text 15 CHINA'S NATURE RESERVES 176

Text 16 ENVIRONMENTAL PROTECTION IN ACTION 179

SECTION Ⅲ BILINGUALS 183

Text 1 WE POLLUTE THE AIR 183

Text 2 ARE SOUNDS USEFUL OR HARMFUL? 185

Text 3 WHAT IS HEAT? 186

Text 4 OVERCOMING THE PROBLEM OF WASTE 187

Text 5 WATER 188

Text 6 THE PURIFICATION OF WATER 190

Text 7 DUST 192

Text 8 TREES 194

Text 9 PRESERVATION OF NATURE 197

Text 10 THE WEALTH OF NEW JERSEY'S BARRENS 200

Text 11 THE UNPREDICTABLE WEATHER IN NEW ENGLAND 204

Text 12 YOSEMITE NATIONAL PARK 208

Text 13 YELLOWSTONE 212

Text 14 VERMONT—GREEN MOUNTAINS 216

Text 15 THE MAJESTIC SEQUOIAS 220

Text 16 THE GREEN SEA OF DUNES 224

SECTION Ⅳ APPENDIXES(附录) 229

附录1:数学符号及数学公式 229

附录2:单位换算系数 232

附录3:化学元素表 236

REFERENCES 238