Global Shortage of Fresh Water
   

              People usually think that fresh water is inexhaustible. They hold this opinion because they can see water everywhere, rainwater, water in the river or the lake and they can get water as soon as they turn on the tap.    Acturally, there is a serious shortage of fresh water. Fresh water is not only needed in people's daily life but also in industry and agriculture. Fresh water shortage is made more serious by pollution and population expansion, to say nothing of the fact that the Yellow River is drying up.    Many ways can contribute to solving this serious problem, but the following ones may be most effective. First, everyone should be advised to economize fresh water. Besides, measures should be taken to prevent water pollution. Finally,we should exploit fresh water resources by making use of underground water, desahing seawater, and even purifying water already polluted.    These are not the best and the only three measures we can take. But it should be noted that we should take strong actions to protect fresh water resources.
標(biāo)題：全球淡水短缺
 內(nèi)容：鮮Water1的短缺。人們認(rèn)為淡水是取之不盡的（提示：雨水，井水，河水等）2。實(shí)際上淡水是非常緊缺的（提示：人口增加，工業(yè)用水，增加污染等） 3。我們應(yīng)該怎么辦，人們通常認(rèn)為，食水是取之不盡，用之不竭。他們認(rèn)為這個意見，因?yàn)樗麄兛梢钥吹降教幎际撬晁恿骰蚝吹乃麄兛梢栽谧疃痰乃?dāng)他們在水龍頭。 Acturally，有一個淡水嚴(yán)重不足。淡水是不僅需要在人們的日常生活，而且在工業(yè)和農(nóng)業(yè)。淡水短缺問題變得更加污染和人口膨脹嚴(yán)重，更不要說一個事實(shí)，即黃河沒有枯竭。很多方法可以有助于解決這一嚴(yán)重問題，但下面的人可能是最有效的。首先，每個人都應(yīng)該盡量節(jié)約淡水。此外，應(yīng)采取措施，以防止水質(zhì)污染。最后，我們應(yīng)該利用利用地下水利用的淡水資源，desahing海水，甚至已經(jīng)污染的凈化水。這些都不是最好，只有3個，我們可以采取的措施。但是，應(yīng)當(dāng)指出，我們應(yīng)采取強(qiáng)有力的行動，以保護(hù)淡水資源。

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