水是人体的重要构成部分,也是营养来源之一。科学研究证实,人只要有水,20天不吃食物也不会饿死,但如果不喝水,不出一个星期就会死于脱水。由此可见饮水对人类是何等的“生死攸关”。显然,人离不开水,但就当前来说,由于一些地方的水源污染比较严重,这就影响了水的质量,进而影响的是人们的身体健 Water is an important part of the body and one of the sources of nutrition. Scientific research confirmed that people as long as water, do not eat food for 20 days will not starve to death, but if you do not drink water, not a week will die of dehydration. This shows how drinking water on the human “life and death ”. Obviously, people can not do without water, but for the moment, as the water pollution in some places is more serious, this affects the quality of water and affects people’s health