gre阅读练习每日一篇(二十八)
<p> 掌握了<span word="gre">gre</span>阅读里的长难句，到了实战演习的时候了。<span word="gre">gre</span>阅读练习每日一篇帮助<span word="gre">gre</span>考生循序渐进地进行练习和总结。希望<span word="gre">gre</span>考生在进行<span word="gre">gre</span>阅读练习时，也按着考试时候的时间规定自己的练习，这样才能有效果。</p><p> <span word="Hydrogeology">Hydrogeology</span> <span word="is">is</span> <span word="a">a</span> <span word="science">science</span> <span word="dealing">dealing</span> <span word="with">with</span> <span word="the">the</span> <span word="properties">properties</span>, <span word="distribution">distribution</span>, <span word="and">and</span> <span word="circulation">circulation</span> <span word="of">of</span> <span word="water">water</span> <span word="on">on</span> <span word="the">the</span> <span word="surface">surface</span> <span word="of">of</span> <span word="the">the</span> <span word="land">land</span>, <span word="in">in</span> <span word="the">the</span> <span word="soil">soil</span> <span word="and">and</span> <span word="underlying">underlying</span> <span word="rocks">rocks</span>, <span word="and">and</span> <span word="in">in</span> <span word="the">the</span> <span word="atmosphere">atmosphere</span>. <span word="The">The</span> <span word="hydrologic">hydrologic</span> <span word="cycle">cycle</span>, <span word="a">a</span> <span word="major">major</span> <span word="topic">topic</span> <span word="in">in</span> <span word="this">this</span> <span word="science">science</span>, <span word="is">is</span> <span word="the">the</span> <span word="complete">complete</span> <span word="cycle">cycle</span> <span word="of">of</span> <span word="phenomena">phenomena</span> <span word="through">through</span> <span word="which">which</span> <span word="water">water</span> <span word="passes">passes</span>, <span word="beginning">beginning</span> <span word="as">as</span> <span word="atmospheric">atmospheric</span> <span word="water">water</span> <span word="vapor">vapor</span>, <span word="passing">passing</span> <span word="into">into</span> <span word="liquid">liquid</span> <span word="and">and</span> <span word="solid">solid</span> <span word="form">form</span> <span word="as">as</span> <span word="precipitation">precipitation</span>, <span word="thence">thence</span> <span word="along">along</span> <span word="and">and</span> <span word="into">into</span> <span word="the">the</span> <span word="ground">ground</span> <span word="surface">surface</span>, <span word="and">and</span> <span word="finally">finally</span> <span word="again">again</span> <span word="returning">returning</span> <span word="to">to</span> <span word="the">the</span> <span word="form">form</span> <span word="of">of</span> <span word="atmospheric">atmospheric</span> <span word="water">water</span> <span word="vapor">vapor</span> <span word="by">by</span> <span word="means">means</span> <span word="of">of</span> <span word="evaporation">evaporation</span> <span word="and">and</span> <span word="transpiration">transpiration</span>.</p><p> <span word="The">The</span> <span word="term">term</span> <span word="geohydrology">geohydrology</span> <span word="is">is</span> <span word="sometimes">sometimes</span> <span word="erroneously">erroneously</span> <span word="used">used</span> <span word="as">as</span> <span word="a">a</span> <span word="synonym">synonym</span> <span word="for">for</span> <span word="hydrogeology">hydrogeology</span>. <span word="Geohydrology">Geohydrology</span> <span word="is">is</span> <span word="concerned">concerned</span> <span word="with">with</span> <span word="underground">underground</span> <span word="water">water</span>. <span word="There">There</span> <span word="are">are</span> <span word="many">many</span> <span word="formations">formations</span> <span word="that">that</span> <span word="contain">contain</span> <span word="water">water</span> <span word="but">but</span> <span word="are">are</span> <span word="not">not</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="hydrologic">hydrologic</span> <span word="cycle">cycle</span> <span word="because">because</span> <span word="of">of</span> <span word="geologic">geologic</span> <span word="changes">changes</span> <span word="that">that</span> <span word="have">have</span> <span word="isolated">isolated</span> <span word="them">them</span> <span word="underground">underground</span>. <span word="These">These</span> <span word="systems">systems</span> <span word="are">are</span> <span word="properly">properly</span> <span word="termed">termed</span> <span word="geohydrologic">geohydrologic</span> <span word="but">but</span> <span word="not">not</span> <span word="hydrogeologic">hydrogeologic</span>. <span word="Only">Only</span> <span word="when">when</span> <span word="a">a</span> <span word="system">system</span> <span word="possesses">possesses</span> <span word="natural">natural</span> <span word="or">or</span> <span word="artificial">artificial</span> <span word="boundaries">boundaries</span> <span word="that">that</span> <span word="associate">associate</span> <span word="the">the</span> <span word="water">water</span> <span word="within">within</span> <span word="it">it</span> <span word="with">with</span> <span word="the">the</span> <span word="hydrologic">hydrologic</span> <span word="cycle">cycle</span> <span word="may">may</span> <span word="the">the</span> <span word="entire">entire</span> <span word="system">system</span> <span word="properly">properly</span> <span word="be">be</span> <span word="termed">termed</span> <span word="hydrogeologic">hydrogeologic</span>.</p><p> 17. <span word="The">The</span> <span word="authors">authors</span> <span word="primary">primary</span> <span word="purpose">purpose</span> <span word="is">is</span> <span word="most">most</span> <span word="probably">probably</span> <span word="to">to</span></p>
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