考研优美英语作文的背诵044
<p> <span word="Obtaining">Obtaining</span> <span word="Fresh">Fresh</span> <span word="Water">Water</span> <span word="from">from</span> <span word="Icebergs">Icebergs</span></p><p> <span word="The">The</span> <span word="concept">concept</span> <span word="of">of</span> <span word="obtaining">obtaining</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="from">from</span> <span word="icebergs">icebergs</span> <span word="that">that</span> <span word="are">are</span> <span word="towed">towed</span> <span word="topopulated">topopulated</span> <span word="areas">areas</span> <span word="and">and</span> <span word="arid">arid</span> <span word="regions">regions</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span> <span word="was">was</span> <span word="once">once</span> <span word="treated">treated</span> <span word="as">as</span> <span word="a">a</span> <span word="jokemore">jokemore</span> <span word="appropriate">appropriate</span> <span word="to">to</span> <span word="cartoons">cartoons</span> <span word="than">than</span> <span word="real">real</span> <span word="life">life</span>. <span word="But">But</span> <span word="now">now</span> <span word="it">it</span> <span word="is">is</span> <span word="beingconsidered">beingconsidered</span> <span word="quite">quite</span> <span word="seriously">seriously</span> <span word="by">by</span> <span word="many">many</span> <span word="nations">nations</span>, <span word="especially">especially</span> <span word="sincescientists">sincescientists</span> <span word="have">have</span> <span word="warned">warned</span> <span word="that">that</span> <span word="the">the</span> <span word="human">human</span> <span word="race">race</span> <span word="will">will</span> <span word="outgrow">outgrow</span> <span word="its">its</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="supplyfaster">supplyfaster</span> <span word="than">than</span> <span word="it">it</span> <span word="runs">runs</span> <span word="out">out</span> <span word="of">of</span> <span word="food">food</span>.<span word="Glaciers">Glaciers</span> <span word="are">are</span> <span word="a">a</span> <span word="possible">possible</span> <span word="source">source</span> <span word="of">of</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="that">that</span> <span word="has">has</span> <span word="been">been</span> <span word="overlooked">overlooked</span> <span word="until">until</span> <span word="recently">recently</span>. <span word="Three">Three</span>-<span word="quarters">quarters</span> <span word="of">of</span> <span word="the">the</span> <span word="Earthsfresh">Earthsfresh</span> <span word="water">water</span> <span word="supply">supply</span> <span word="is">is</span> <span word="still">still</span> <span word="tied">tied</span> <span word="up">up</span> <span word="in">in</span> <span word="glacial">glacial</span> <span word="ice">ice</span>, <span word="areservoir">areservoir</span> <span word="of">of</span> <span word="untapped">untapped</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="so">so</span> <span word="immense">immense</span> <span word="that">that</span> <span word="it">it</span> <span word="could">could</span> <span word="sustain">sustain</span> <span word="all">all</span> <span word="therivers">therivers</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span> <span word="for">for</span> 1,000 <span word="years">years</span>. <span word="Floating">Floating</span> <span word="on">on</span> <span word="the">the</span> <span word="oceans">oceans</span> <span word="every">every</span> <span word="year">year</span> <span word="are">are</span>7,659 <span word="trillion">trillion</span> <span word="metric">metric</span> <span word="tons">tons</span> <span word="of">of</span> <span word="ice">ice</span> <span word="encased">encased</span> <span word="in">in</span> 10,000 <span word="icebergs">icebergs</span> <span word="that">that</span> <span word="breakaway">breakaway</span> <span word="from">from</span> <span word="the">the</span> <span word="polar">polar</span> <span word="ice">ice</span> <span word="caps">caps</span>, <span word="more">more</span> <span word="than">than</span> <span word="ninety">ninety</span> <span word="percent">percent</span> <span word="of">of</span> <span word="them">them</span> <span word="fromAntarctica">fromAntarctica</span>.<span word="Huge">Huge</span> <span word="glaciers">glaciers</span> <span word="that">that</span> <span word="stretch">stretch</span> <span word="over">over</span> <span word="the">the</span> <span word="shallow">shallow</span> <span word="continental">continental</span> <span word="shelf">shelf</span> <span word="givebirth">givebirth</span> <span word="to">to</span> <span word="icebergs">icebergs</span> <span word="throughout">throughout</span> <span word="the">the</span> <span word="year">year</span>. <span word="Icebergs">Icebergs</span> <span word="are">are</span> <span word="not">not</span> <span word="like">like</span> <span word="sea">sea</span> <span word="ice">ice</span>,<span word="which">which</span> <span word="is">is</span> <span word="formed">formed</span> <span word="when">when</span> <span word="the">the</span> <span word="sea">sea</span> <span word="itself">itself</span> <span word="freezes">freezes</span>, <span word="rather">rather</span>, <span word="they">they</span> <span word="are">are</span> <span word="formed">formed</span> <span word="entirelyon">entirelyon</span> <span word="land">land</span>, <span word="breaking">breaking</span> <span word="off">off</span> <span word="when">when</span> <span word="glaciers">glaciers</span> <span word="spread">spread</span> <span word="over">over</span> <span word="the">the</span> <span word="sea">sea</span>. <span word="As">As</span> <span word="they">they</span> <span word="driftaway">driftaway</span> <span word="from">from</span> <span word="the">the</span> <span word="polar">polar</span> <span word="region">region</span>, <span word="icebergs">icebergs</span> <span word="sometimes">sometimes</span> <span word="move">move</span> <span word="mysteriously">mysteriously</span> <span word="in">in</span> <span word="a">a</span> <span word="directionopposite">directionopposite</span> <span word="to">to</span> <span word="the">the</span> <span word="wind">wind</span>, <span word="pulled">pulled</span> <span word="by">by</span> <span word="subsurface">subsurface</span> <span word="currents">currents</span>. <span word="Because">Because</span> <span word="they">they</span> <span word="melt">melt</span> <span word="moreslowly">moreslowly</span> <span word="than">than</span> <span word="smaller">smaller</span> <span word="pieces">pieces</span> <span word="of">of</span> <span word="ice">ice</span>, <span word="icebergs">icebergs</span> <span word="have">have</span> <span word="been">been</span> <span word="known">known</span> <span word="to">to</span> <span word="drift">drift</span> <span word="as">as</span> <span word="far">far</span> <span word="northas">northas</span> 35 <span word="degrees">degrees</span> <span word="south">south</span> <span word="of">of</span> <span word="the">the</span> <span word="equator">equator</span> <span word="in">in</span> <span word="the">the</span> <span word="Atlantic">Atlantic</span> <span word="Ocean">Ocean</span>. <span word="To">To</span> <span word="corral">corral</span> <span word="themand">themand</span> <span word="steer">steer</span> <span word="them">them</span> <span word="to">to</span> <span word="parts">parts</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span> <span word="where">where</span> <span word="they">they</span> <span word="are">are</span> <span word="needed">needed</span> <span word="wouldnot">wouldnot</span> <span word="be">be</span> <span word="too">too</span> <span word="difficult">difficult</span>.<span word="The">The</span> <span word="difficulty">difficulty</span> <span word="arises">arises</span> <span word="in">in</span> <span word="othertechnical">othertechnical</span> <span word="matters">matters</span>, <span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="prevention">prevention</span> <span word="of">of</span> <span word="rapid">rapid</span> <span word="melting">melting</span> <span word="inwarmer">inwarmer</span> <span word="climates">climates</span> <span word="and">and</span> <span word="the">the</span> <span word="funneling">funneling</span> <span word="of">of</span> <span word="fresh">fresh</span> <span word="water">water</span> <span word="to">to</span> <span word="shore">shore</span> <span word="in">in</span> <span word="great">great</span> <span word="volume">volume</span>. <span word="But">But</span> <span word="even">even</span> <span word="if">if</span> <span word="the">the</span> <span word="icebergs">icebergs</span> <span word="lost">lost</span> <span word="half">half</span> <span word="of">of</span> <span word="their">their</span> <span word="volumein">volumein</span> <span word="towing">towing</span>, <span word="the">the</span> <span word="water">water</span> <span word="they">they</span> <span word="could">could</span> <span word="provide">provide</span> <span word="would">would</span> <span word="be">be</span> <span word="far">far</span> <span word="cheaper">cheaper</span> <span word="than">than</span> <span word="thatproduced">thatproduced</span> <span word="by">by</span> <span word="desalinization">desalinization</span>, <span word="or">or</span> <span word="removing">removing</span> <span word="salt">salt</span> <span word="from">from</span> <span word="water">water</span>.</p>
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