2015考研英语阅读水的净化
<p> <span word="Water">Water</span> <span word="purification">purification</span></p><p> 水的净化</p><p> <span word="Any">Any</span> <span word="old">old</span> <span word="iron">iron</span>?</p><p> 有废铁吗?</p><p> <span word="A">A</span> <span word="little">little</span>-<span word="known">known</span> <span word="chemical">chemical</span> <span word="may">may</span> <span word="provide">provide</span> <span word="a">a</span> <span word="new">new</span> <span word="way">way</span> <span word="toclean">toclean</span> <span word="water">water</span></p><p> 一种鲜为人知的化学物质可能为清洁水源带来一线希望</p><p> <span word="IRON">IRON</span> <span word="in">in</span> <span word="water">water</span> <span word="is">is</span> <span word="normally">normally</span> <span word="regarded">regarded</span> <span word="a">a</span> <span word="pollutant">pollutant</span>.</p><p> 水中的铁原子通常被认为是一种污染源。</p><p> <span word="Luke">Luke</span> <span word="Daly">Daly</span>, <span word="the">the</span> <span word="boss">boss</span> <span word="of">of</span> <span word="Ferrate">Ferrate</span> <span word="Treatment">Treatment</span> <span word="Technologies">Technologies</span> <span word="of">of</span> <span word="Orlando">Orlando</span>, <span word="Florida">Florida</span>, <span word="however">however</span>, <span word="plans">plans</span> <span word="toturn">toturn</span> <span word="that">that</span> <span word="thought">thought</span> <span word="on">on</span> <span word="its">its</span> <span word="head">head</span>.</p><p> 然而，弗罗里达州奥兰多高铁酸盐技术处理所所长<span word="Luke">Luke</span> <span word="Daly">Daly</span>，计划颠倒这一认知。</p><p> <span word="He">He</span> <span word="intends">intends</span> <span word="to">to</span> <span word="use">use</span> <span word="a">a</span> <span word="chemically">chemically</span> <span word="unusual">unusual</span> <span word="form">form</span> <span word="of">of</span> <span word="iron">iron</span> <span word="to">to</span> <span word="clean">clean</span> <span word="water">water</span> <span word="up">up</span>, <span word="not">not</span> <span word="make">make</span> <span word="it">it</span> <span word="dirty">dirty</span>.</p><p> 他将利用铁原子的一种非通常化学形态来净化水源，而非污染水源。</p><p> <span word="Iron">Iron</span> <span word="is">is</span> <span word="found">found</span> <span word="in">in</span> <span word="the">the</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="periodic">periodic</span> <span word="table">table</span> <span word="known">known</span> <span word="as">as</span> <span word="the">the</span> <span word="transition">transition</span> <span word="metals">metals</span>.</p><p> 铁是化学元素周期表中的一部分，也被熟知为过渡金属。</p><p> <span word="Like">Like</span> <span word="all">all</span> <span word="metals">metals</span>, <span word="these">these</span> <span word="react">react</span> <span word="with">with</span> <span word="other">other</span> <span word="elements">elements</span> <span word="by">by</span> <span word="giving">giving</span> <span word="up">up</span> <span word="electrons">electrons</span> <span word="to">to</span> <span word="form">form</span> <span word="positivelycharged">positivelycharged</span> <span word="ions">ions</span>.</p><p> 像所有的金属一样，铁原子与其他元素反应，释放电子形成带正电的离子。</p><p> <span word="Transition">Transition</span> <span word="metals">metals</span>, <span word="though">though</span>, <span word="give">give</span> <span word="updifferent">updifferent</span> <span word="numbers">numbers</span> <span word="of">of</span> <span word="electrons">electrons</span> <span word="in">in</span> <span word="different">different</span> <span word="circumstances">circumstances</span>, <span word="and">and</span> <span word="thus">thus</span> <span word="have">have</span> <span word="ions">ions</span> <span word="of">of</span> <span word="variouscharges">variouscharges</span>.</p>
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