Pollution is harmful to human beings.Polluted water causes many kinds of diseases such as diarrhea, enteritis, etc.And sometimes these diseases even take man’s life.Dirty air or air-borne garbage causes stinging eyes and running nose.Pollutants are destructive. They cause runs in nylon stockings and crack rubber tires and they eat away at stone and rust iron.

　　污染对人类有害。污染的水引起多种疾病，诸如腹泻，肠炎等。有时这些疾病甚至会夺去人的生命。污染的空气或空气中含有的废物引起眼睛刺痛，流鼻涕。污染物是有害的，它们使尼龙长袜脱丝，使车胎爆裂，侵蚀石头，使铁生锈。