作文：?

????????Water is life. Plants, animals and humans all depend on this invaluable natural resources for life. Furthermore, energy production, agriculture irrigation , cleaning and sanitation, manufacturing and even the realization of democracy needs water. Almost every human activity we can think of involves some use of water.

????????Nevertheless, the water shortage is likely to be tremendous crisis that we will confront. According to a long-term study completed by the Minitary of Environmental Protection and the Chinese Academy of Engineering, over 90 percent of the groundwater supplies in cities was polluted to different degrees. Not only might water be contaminated, it is also scarce, which induce that millions of rural residents lack access to drinking water. Hence, the enormous waste and pollution of water are held accountable for the global water shortage.

????????In a gesture to deal with the challenge, we should not only tighten the supervision of water use but also work out a long-term solution to this problem. It was our action and responsibilities that help us restore the aquatic ecological system. We believe that modern society has both the knowledge and the capability to effectively deal with the huge challenges its rapid development has created. As the saying goes, we never know the worth of water till the well is dry. On the whole, we should all remember that saving water is saving ourselves.

譯文：

????????水是生命。植物、動物和人類的生命都依賴于這一寶貴的自然資源。此外，能源生產(chǎn)、農(nóng)業(yè)灌溉、清潔和衛(wèi)生、制造業(yè)甚至實現(xiàn)民主都需要水。我們能想到的幾乎每一項人類活動都涉及到水的使用。

????????然而，水資源短缺很可能是我們將要面對的巨大危機。根據(jù)環(huán)境保護部和中國工程院完成的一項長期研究，城市中超過90%的地下水供應(yīng)受到不同程度的污染。水不僅可能被污染，而且稀缺，這導(dǎo)致數(shù)以百萬計的農(nóng)村居民缺乏飲用水。因此，對水的巨大浪費和污染被認(rèn)為是全球水資源短缺的原因。

????????為了應(yīng)對這一挑戰(zhàn)，我們不僅要加強對用水的監(jiān)督，而且要找出解決這一問題的長期辦法。正是我們的行動和責(zé)任幫助我們恢復(fù)了水生生態(tài)系統(tǒng)。我們認(rèn)為，現(xiàn)代社會既有知識，也有能力有效應(yīng)對其快速發(fā)展所帶來的巨大挑戰(zhàn)。俗話說，井干方知水珍貴?？偟膩碚f，我們都應(yīng)該記住，節(jié)約用水就是拯救我們自己。

逐句對照：

水是生命。

Water is life.?

植物、動物和人類的生命都依賴于這一寶貴的自然資源。

Plants, animals and humans all depend on this invaluable natural resources for life.?

此外，能源生產(chǎn)、農(nóng)業(yè)灌溉、清潔和衛(wèi)生、制造業(yè)甚至實現(xiàn)民主都需要水。

Furthermore, energy production, agriculture irrigation , cleaning and sanitation, manufacturing and even the realization of democracy needs water.?

我們能想到的幾乎每一項人類活動都涉及到水的使用。

?Almost every human activity we can think of involves some use of water.

然而，水資源短缺很可能是我們將要面對的巨大危機。

Nevertheless, the water shortage is likely to be tremendous crisis that we will confront.?

根據(jù)環(huán)境保護部和中國工程院完成的一項長期研究，城市中超過90%的地下水供應(yīng)受到不同程度的污染。?

According to a long-term study completed by the Minitary of Environmental Protection and the Chinese Academy of Engineering, over 90 percent of the groundwater supplies in cities was polluted to different degrees.

水不僅可能被污染，而且稀缺，這導(dǎo)致數(shù)以百萬計的農(nóng)村居民缺乏飲用水。

Not only might water be contaminated, it is also scarce, which induce that millions of rural residents lack access to drinking water.?

因此，對水的巨大浪費和污染被認(rèn)為是全球水資源短缺的原因。

?Hence, the enormous waste and pollution of water are held accountable for the global water shortage.

為了應(yīng)對這一挑戰(zhàn)，我們不僅要加強對用水的監(jiān)督，而且要找出解決這一問題的長期辦法。

In a gesture to deal with the challenge, we should not only tighten the supervision of water use but also work out a long-term solution to this problem.?

正是我們的行動和責(zé)任幫助我們恢復(fù)了水生生態(tài)系統(tǒng)。

It was our action and responsibilities that help us restore the aquatic ecological system.?

我們認(rèn)為，現(xiàn)代社會既有知識，也有能力有效應(yīng)對其快速發(fā)展所帶來的巨大挑戰(zhàn)。?

We believe that modern society has both the knowledge and the capability to effectively deal with the huge challenges its rapid development has created.?

俗話說，井干方知水珍貴。

As the saying goes, we never know the worth of water till the well is dry.?

總的來說，我們都應(yīng)該記住，節(jié)約用水就是拯救我們自己。?

On the whole, we should all remember that saving water is saving ourselves.