地球上97.5%的水是咸水,只有2.5%是淡水。而将近70%的淡水冻结在南极和格林兰的冰盖中,其余的大部分存在土壤中或是深层地下水,难以供人类开采使用。江河、湖泊、水库及浅层地下水等较易于开采供人类使用,但其数量不足世界淡水的1%。随着人口的增长及人均收入的增加。人们对水资源的消耗量也迅猛增长。我们要加强保护水资源意识,不要让最后一滴水成为我们的眼泪! 97.5% of Earth’s water is salt water, and only 2.5% is fresh water. Nearly 70% of freshwater is frozen in the Antarctic and Greenland ice sheets, while most of the rest is found in soil or deep groundwater, making it difficult for human exploitation. Rivers, lakes, reservoirs and shallow groundwater are easier to mine for human use, but their numbers are less than 1% of the world’s fresh water. As the population grows and per capita income increases. People’s consumption of water resources is also growing rapidly. We should step up protection of water resources, do not let the last drop of water become our tears!