前言 Unit 1 Section 1 Brief Introduction to the World Water Section 2 Brief Introduction to the World Water Resources Unit 2 Section 1 Water Avaiablility and Water Resources Deficit Section 2 Water Resources and Water Use Unit 3 Section 1 Basic Characteristics of China's Water Resources Section 2 Water Resources The Water Cycle Unit 4 Section 1 Water Environment Section 2 Water Pollution Unit 5 Section 1 Water Pollution Section 2 Water Pollution Unit 6 Section 1 What Causes Floods? Section 2 Floods Unit 7 Section 1 Control of Flooding Section 2 Variability of Flooding Great Flood of 1993 Unit 8 Section 1 Hydrology Section 2 What Is Hydrology? Unit 9 Unit 10 Unit 11 Unit 12 Unit 13 Unit 14 Unit 15 Unit 16 Unit 17 Unit 18 Unit 19 Unit 20 Unit 21 Unit 22 Unit 23 Unit 24 Unit 25 Unit 26 Unit 27 Unit 28 Unit 29 Unit 30 Unit 31 Unit 32 AppendixⅠ Vocabulary AppendixⅡ Phrases and Expressions 參考文獻(xiàn)