【題目】閱讀材料，回答問題。
我國是一個貧水國家，面臨著嚴重的水資源短缺，然而在現實生活中，卻仍有不少人似乎并不知道水在人類生活中的作用，在我國面臨水資源嚴重緊缺的情況下，仍在漫不經心地浪費和污染著這種稀缺的資源。喚起全社會的關注，治理水資源的浪費和污染，已成為刻不容緩的事情。
（1）水資源的浪費主要表現在生活中、農業上、工業上的用水浪費，我們怎樣去節約用水？提出你的建議。
（2）水污染主要指生活中的污水、工業上的廢水、農業上農藥化肥污染水，我們怎樣去防治水污染呢？請提出你的看法。
【答案】（1）生活中，一水多用，使用節水器具等；農業上改變灌溉方式，多用噴灌或滴灌，培育耐旱品種；工業上水要循環使用等。
（2）沿途植樹造林，增加水的自動凈化能力；少向河流扔垃圾、排放污水；建立污水處理廠，污水達標才能排放；農業中少使用農藥和化肥，多使用有機肥；生活中少使用洗衣粉、洗潔精等。
【解析】
（1）保護水資源一是要防止水資源污染，二是要節約用水，所以保護水資源的措施：①節約用水；②大力植樹造林；③加強污水的治理循環利用；④加強海水淡化利用等合理即可。
（2）目前防治水污染的方法主要有以下幾種：沿途植樹造林，增加水的自動凈化能力；少向河流扔垃圾、排放污水；建立污水處理廠，污水達標才能排放；農業中少使用農藥和化肥，多使用有機肥；生活中少使用洗衣粉、洗潔精等。
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