With the rapid development of agriculture and industry, more and more water is needed. Therefore, water is becoming scarce in many places. What's more, a lot of rivers and lakes are beginning polluted by the waste watcr from factories. Fish can't live in them any longer. At the same time, thc waste water does great harm to people's health. In order to make rivers and lakes clean and prevent water from being polluted,we must do something to stop all sorts of pollution.
水的重要性 正如我們所了解的，動(dòng)植物需要水，人類的生產(chǎn)生活也需要水。沒有水便沒有生命。 隨著工農(nóng)業(yè)的迅速發(fā)展，水的需要量越來(lái)越大。因此，許多地方缺水。而且，許多河流湖泊被工廠排放的污水所污染，魚不能生存。同時(shí)，廢水給人們的健康帶來(lái)極大的危害。 為了保持河流湖泊清潔，防止水污染，我們必須采取措施，阻止各種污染
