【正文】
水資源再利用系統(tǒng)的重要性對我們而言,與空間站不相上下。我們應(yīng)該采取的第一步就是要發(fā)展水再利用的方法。我們舉個小小的事例就能證明水對工業(yè)的必要性。我們只有現(xiàn)在采取措施解決這一問題才能避免未來世界范圍內(nèi)的嚴(yán)重水資源缺乏。然而,盡管按現(xiàn)狀看來,這些少量的淡水即使時常轉(zhuǎn)化成雨水的形式,對我們來說,也仍然夠用。即使如此,這3%的水源我們也不能夠完全使用,因為有些淡水是以冰山或冰河的形式存在。但是,這巨大的數(shù)量中97%是海水、或咸水。s surface is covered with about 97% of this huge amount is sea water, or salt can only drink and use the other 3%the fresh water that es from rivers, lakes, underground, and other we cannot even use all of that, because some of it is in the form of icebergs and worse, some of it has been , as things stand today, this small amount of fresh water, which is constantly being replaced by rainfall, is still enough for our need for water is increasing rapidlyalmost day by if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later limited water supply would have a bad effect on agriculture and me give you just one small example of how necessary water is to you know that to produce a single ton of steel, it takes about 91, 000 liters of water?We all have to learn how to stop wasting our precious of the first steps we should take is to develop ways of reusing have already been done in this field, but only on a small us, the systems are as important as the 我們的世界不僅饑餓,而且因為缺水而干渴。)第四篇:中考英語作文環(huán)保,低碳生活類環(huán)保、低碳生活類作文環(huán)保、低碳生活類作文一般都會從三個方面進(jìn)行內(nèi)容要點要求:、低碳生活重要性一、簡單陳述環(huán)保、低碳生活重要性: more and more people have done a lot to protect the more and more people bee to realize the importance of protecting our 、舉例談?wù)勀愕淖龇ǎ? as a junior student, I have done much work to protect our a junior high school student, I have always been doing lots of things to protect the environment around was moved by what they enviro