珍惜资源的建议
<p>各位同学：</p><p><span word="Dear">Dear</span> <span word="students">students</span></p><p>你们好！我们只有一个地球，现在能够预知的生命赖以生存的星球只有一个地球。由于温室气体的大量排放，科学家悲观地估计，到2100年海平面将升高0。59米，很多城市将变成一片泽国。</p><p><span word="How">How</span> <span word="do">do</span> <span word="you">you</span> <span word="do">do</span>! <span word="We">We</span> <span word="have">have</span> <span word="only">only</span> <span word="one">one</span> <span word="earth">earth</span>, <span word="and">and</span> <span word="the">the</span> <span word="planet">planet</span> <span word="on">on</span> <span word="which">which</span> <span word="life">life</span> <span word="can">can</span> <span word="now">now</span> <span word="be">be</span> <span word="predicted">predicted</span> <span word="depends">depends</span> <span word="has">has</span> <span word="only">only</span> <span word="one">one</span> <span word="earth">earth</span>. <span word="Due">Due</span> <span word="to">to</span> <span word="the">the</span> <span word="large">large</span> <span word="amount">amount</span> <span word="of">of</span> <span word="greenhouse">greenhouse</span> <span word="gas">gas</span> <span word="emissions">emissions</span>, <span word="scientists">scientists</span> <span word="pessimistically">pessimistically</span> <span word="estimate">estimate</span> <span word="that">that</span> <span word="the">the</span> <span word="sea">sea</span> <span word="level">level</span> <span word="will">will</span> <span word="rise">rise</span> 0 <span word="by">by</span> 2100. 59 <span word="meters">meters</span>, <span word="many">many</span> <span word="cities">cities</span> <span word="will">will</span> <span word="become">become</span> <span word="a">a</span> <span word="Jersey">Jersey</span>.</p><p>水是人类永远紧缺的资源，同样由于环境污染，在未来的百年间，全球将有2/5的人口生活在缺水的环境中。</p><p><span word="Water">Water</span> <span word="is">is</span> <span word="a">a</span> <span word="resource">resource</span> <span word="that">that</span> <span word="mankind">mankind</span> <span word="is">is</span> <span word="always">always</span> <span word="in">in</span> <span word="short">short</span> <span word="of">of</span>. <span word="In">In</span> <span word="the">the</span> <span word="next">next</span> <span word="hundred">hundred</span> <span word="years">years</span>, <span word="two">two</span> <span word="fifths">fifths</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span>'<span word="s">s</span> <span word="population">population</span> <span word="will">will</span> <span word="live">live</span> <span word="in">in</span> <span word="a">a</span> <span word="water">water</span> <span word="shortage">shortage</span> <span word="environment">environment</span> <span word="due">due</span> <span word="to">to</span> <span word="environmental">environmental</span> <span word="pollution">pollution</span>.</p><p>近年来，我国的资源可花费不少，比如说：水资源，人们平时用来洗衣服，做饭，已花费不少。可惜，我们随处可见的依然是对资源的浪费和对环境的污染。你们看，在平时洗手的时候没有关水龙头，导致水资源大量浪费。我们再说森林资源，森林中的花草树木，原本可以像人类大量繁植、生长，但我们的大量砍伐破坏，拿来建设和生产，导致树林逐渐减少，并不能快速繁植。还有生物资源，动物在近年来也逐渐减少，是什么原因呢？是因为人类大量捕捉，再加上被敌人追捕或生病，导致生物不断减少。最后还有大气资源，这是最重要的，因为我们每个人都在呼吸空气，然而，某些工厂却污染空气，使我们能够呼吸的空气越来越差。我们知道，有些植物能够给我们提供空气，但是树林被砍掉了，我们又如何生存呢？</p>
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