本书按照国家教委颁布的《大学英语专业阅读阶段教学基本要求》规定编写的专业英语教材。全书分16个单元，主要包括内容包括：供水历史，水质问题，水的净化，水分析的基本指标，给水工程，微生物的化学机理，地下水的形成与运动，环境或卫生工程，大气污染形成的因素，固体废物处理，水污染防治等。每单元除正课文外，还有两篇阅读材料，均配有必要的注释。

本书是按国家教委颁布的《大学英语专业阅读阶段教学基本要求》规定编写的专业英语教材。本册包括给水历史、水的净化、环境工程、水与大气污染及水力学等方面内容。全书分16个单元，每单元除正课文外，还有两篇阅读材料，均配有必要的注释。正课文还配有词汇表和练习，书后附有总词汇表、参考译文和练习答案。供高等学校本专业学生三年级上学期使用，也可供有关人员自学。

UNIT ONE

 Text History of Water Supply

 Reading Material A Major Water Pollutants (Ⅰ)

 Reading Material B Major Water Pollutants (Ⅱ)

UNIT TWO

 Text Water

 Reading Material A Importance of Water

 Reading Material B The Nature of Water

UNIT THREE

 Text Water Problems

 Reading Material A The Hydrologic Cycle

 Reading Material B The Hydrologic Cycle and Water Quality

UNIT FOUR

 Text The Purification of Water

 Reading Material A Softening of Water

 Reading Material B Softening of Water

UNIT FIVE

 Text Basic Factors in Water Analysis

 Reading Material A Water Testing

 Reading Material B The General Physical-chemical Principle of Water

UNIT SIX

 Text Water-supply Engineering

 Reading Material A Drainage, Sewerage and Sewage

 Reading Material B Water Supply

UNIT SEVEN

 Text Plumbing——Background and Status

 Reading Material A Basic Principles of Plumbing

 Reading Material B Sources of Water

UNIT EIGHT

 Text Microbes as Chemical Machines

 Reading Material A Bacteria

 Reading Material B Water Pollution and Its Effect on Environment

UNIT NINE

 Text Groundwater Formation and Its Movement

 Readin~ Material A Sources of Water for Domestic Use

 Reading Material B Multi-purpose Hydraulic Projects

UNIT TEN

 Text Open Channel Flow

 Reading Material A Dam

 Reading Material B Rock-fill Dams and Spillway

UNIT ELEVEN

 Text Environmental/Sanitary Engineering

 Reading Material A Sanitary Engineering

 Reading Material B Municipal Engineering

UNIT TWELVE

 Text Ecosystem

 Reading Material A Problems Due to Plankton-algae

 Reading Material B The Death of Microorganisms

UNIT THIRTEEN

 Text Factors Responsible for the Burgeoning Air Pollution Problem

 Reading Material A The "Killer Smog"

 Reading Material B Economic Loss from Air Pollution

UNIT FOURTEEN

 Text Solid Waste Disposal

 Reading Material A Where Do Pollution Come from?

 Reading Material B Industry Sludges

UNIT FIFTEEN

 Text Combating Water Pollution

 Reading Material A Ozone

 Reading Material B Acid Rain

UNIT SIXTEEN

 Text Paving the Way to Excellence in Water Supply System

 Reading Material A Control of Data Quality

 Reading Material B The Monitoring Approach of the Levels-of-service Framework

Appendix Ⅰ Vocabulary

Appendix Ⅱ Translation for Reference

Appendix Ⅲ Key to Exercises