gre写作模板：Obtaining Fresh water from icebergs
本文主要讲解GRE作文相关内容，希望能帮助童鞋们提高写作能力。查字典出国留学网编辑部敬上。
GRE 写作范文5：Obtaining Fresh water from icebergs
The concept of obtaining fresh water from icebergs that are towed to populated areas and aridregions of the world was once treated as a joke more appropriate to cartoons than real life. Butnow it is being considered quite seriously by many nations, especially since scientists have warnedthat the human race will outgrow its fresh water supply faster than it runs out of food.
Glaciers are a possible source of fresh water that has been overlooked until recently.Three-quarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir ofuntapped fresh water so immense that it could sustain all the rivers of the world for 1,000 years.Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10000 icebergsthat break away from the polar ice caps, more than ninety percent of them from Antarctica.
Huge glaciers that stretch over the shallow continental shelf give birth to icebergs throughoutthe year. Icebergs are not like sea ice, which is formed when the sea itself freezes, rather, they areformed entirely on land, breaking off when glaciers spread over the sea. As they drift away fromthe polar region, icebergs sometimes move mysteriously in a direction opposite to the wind, pulledby subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs havebeen known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. To corralthem and steer them to parts of the world where they are needed would not be too difficult.
原文来源： 点击查看更多与《gre写作模板：Obtaining Fresh water from icebergs》相关的文章>> 2014-03-11· 2014年GRE填空题步骤分析 2014-03-11· 2014年GRE写作常用经典句子 2014-03-11· 2014年GRE写作常见词汇 2014-03-11· 2014年GRE写作模板介绍 2014-03-11· 2014年GRE写作之引导性例句 2014-03-11· 2014年GRE之满分写作 2014-01-25· GRE作文范文：学科 2014-01-25· GRE作文实例：个人责任 2014-01-25· GRE作文argument范文分析 2014-01-24· GRE作文模板：企业领导责任 gre写作模板：Obtaining Fresh water from icebergs
The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling of fresh water to shore in great volume. But even if theicebergs lost half of their volume in towing, the water they could provide would be far cheaperthan that produced by desalinization, or removing salt from water.
gre写作考试范文只是给考生作为一个参考作用，一方面考生可以背诵这些优秀的gre写作范文，另一方面应该从中举一反三，不要只是一味地背诵。
感谢您阅读《Obtaining Fresh water from icebergs 》一文，查字典出国留学网()编辑部希望本文能帮助到您。
原文来源： 点击查看更多与《gre写作模板：Obtaining Fresh water from icebergs》相关的文章>> 2014-03-11· 2014年GRE填空题步骤分析 2014-03-11· 2014年GRE写作常用经典句子 2014-03-11· 2014年GRE写作常见词汇 2014-03-11· 2014年GRE写作模板介绍 2014-03-11· 2014年GRE写作之引导性例句 2014-03-11· 2014年GRE之满分写作 2014-01-25· GRE作文范文：学科 2014-01-25· GRE作文实例：个人责任 2014-01-25· GRE作文argument范文分析 2014-01-24· GRE作文模板：企业领导责任