初中1年级 - 应用文 阅读指导

Water is the source of life, is human survival and is instead of nutrients. Along with the development of life science, people on the human body and the depth of water in the heavy water's understanding of the importance of also more and more deeply.
Sunlight, air and water belongs to life three external factors. But modern medical research shows that water is life constitutes one of the major components, the quality of the drinking water to human health are direct and the profound influence, this kind of influence far beyond people imagine.
In real life, people can hardly free choice the sun and air, but because the modern science and technology and the transportation industry developed, people have conditions choice health, consistent with their own need to drinking water.
Drinking water, should not only pay attention to whether enough water quantity, water quality is Ann