考研优美英语作文的背诵042
<p> <span word="Coal">Coal</span>-<span word="firedPower">firedPower</span> <span word="Plants">Plants</span></p><p> <span word="The">The</span> <span word="invention">invention</span> <span word="of">of</span> <span word="the">the</span> <span word="incandescent">incandescent</span> <span word="light">light</span> <span word="bulb">bulb</span> <span word="by">by</span> <span word="Thomas">Thomas</span> <span word="A">A</span>. <span word="Edison">Edison</span> <span word="in">in</span>1879 <span word="created">created</span> <span word="a">a</span> <span word="demand">demand</span> <span word="for">for</span> <span word="a">a</span> <span word="cheap">cheap</span>, <span word="readily">readily</span> <span word="available">available</span> <span word="fuel">fuel</span> <span word="with">with</span> <span word="which">which</span> <span word="togenerate">togenerate</span> <span word="large">large</span> <span word="amounts">amounts</span> <span word="of">of</span> <span word="electric">electric</span> <span word="power">power</span>. <span word="Coal">Coal</span> <span word="seemed">seemed</span> <span word="to">to</span> <span word="fit">fit</span> <span word="the">the</span> <span word="bill">bill</span>, <span word="and">and</span> <span word="itfueled">itfueled</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="power">power</span> <span word="stations">stations</span> . <span word="As">As</span> <span word="more">more</span> <span word="power">power</span> <span word="plants">plants</span> <span word="wereconstructed">wereconstructed</span></p><p> <span word="throughout">throughout</span> <span word="the">the</span> <span word="country">country</span>, <span word="the">the</span> <span word="reliance">reliance</span> <span word="on">on</span> <span word="coal">coal</span> <span word="increased">increased</span>. <span word="Since">Since</span> <span word="the">the</span> <span word="First">First</span> <span word="WorldWar">WorldWar</span>, <span word="coal">coal</span>-<span word="fired">fired</span> <span word="power">power</span> <span word="plants">plants</span> <span word="have">have</span> <span word="accounted">accounted</span> <span word="for">for</span> <span word="about">about</span> <span word="half">half</span> <span word="of">of</span> <span word="theelectricity">theelectricity</span> <span word="produced">produced</span> <span word="in">in</span> <span word="the">the</span> <span word="United">United</span> <span word="States">States</span> <span word="each">each</span> <span word="year">year</span>. <span word="In">In</span> 1986 <span word="such">such</span> <span word="plantshad">plantshad</span> <span word="a">a</span> <span word="combined">combined</span> <span word="generating">generating</span> <span word="capacity">capacity</span> <span word="of">of</span> 289, 000 <span word="megawatts">megawatts</span> <span word="and">and</span> <span word="consumed">consumed</span> 83<span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="nearly">nearly</span> 900 <span word="million">million</span> <span word="tons">tons</span> <span word="of">of</span> <span word="coal">coal</span> <span word="mined">mined</span> <span word="in">in</span> <span word="the">the</span> <span word="country">country</span> <span word="thatyear">thatyear</span>. <span word="Given">Given</span> <span word="the">the</span> <span word="uncertainty">uncertainty</span> <span word="in">in</span> <span word="the">the</span> <span word="future">future</span> <span word="growth">growth</span> <span word="of">of</span> <span word="nuclear">nuclear</span> <span word="power">power</span> <span word="and">and</span> <span word="inthe">inthe</span> <span word="supply">supply</span> <span word="of">of</span> <span word="oil">oil</span> <span word="and">and</span> <span word="natural">natural</span> <span word="gas">gas</span>, <span word="coal">coal</span>-<span word="fired">fired</span> <span word="power">power</span> <span word="plants">plants</span> <span word="could">could</span> <span word="well">well</span> <span word="provideup">provideup</span> <span word="to">to</span> 70 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="electric">electric</span> <span word="power">power</span> <span word="in">in</span> <span word="the">the</span> <span word="United">United</span> <span word="States">States</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="ofthe">ofthe</span> <span word="century">century</span>.</p><p> <span word="Yet">Yet</span>, <span word="in">in</span> <span word="spite">spite</span> <span word="of">of</span> <span word="the">the</span> <span word="fact">fact</span> <span word="that">that</span> <span word="coal">coal</span> <span word="has">has</span> <span word="long">long</span> <span word="been">been</span> <span word="asource">asource</span> <span word="of">of</span> <span word="electricity">electricity</span> <span word="and">and</span> <span word="may">may</span> <span word="remain">remain</span> <span word="one">one</span> <span word="for">for</span> <span word="many">many</span> <span word="years">years</span> , <span word="it">it</span> <span word="has">has</span> <span word="actually">actually</span> <span word="never">never</span> <span word="been">been</span> <span word="the">the</span> <span word="most">most</span> <span word="desirable">desirable</span> <span word="fossil">fossil</span> <span word="fuel">fuel</span> <span word="for">for</span> <span word="power">power</span> <span word="plants">plants</span>.<span word="Coal">Coal</span> <span word="contains">contains</span> <span word="less">less</span> <span word="energy">energy</span> <span word="per">per</span> <span word="unit">unit</span> <span word="of">of</span> <span word="weight">weight</span> <span word="than">than</span> <span word="natural">natural</span> <span word="gas">gas</span> <span word="or">or</span> <span word="oil">oil</span>; <span word="it">it</span> <span word="isdifficult">isdifficult</span> <span word="to">to</span> <span word="transport">transport</span>, <span word="and">and</span> <span word="it">it</span> <span word="is">is</span> <span word="associated">associated</span> <span word="with">with</span> <span word="a">a</span> <span word="host">host</span> <span word="of">of</span> <span word="environmentalissues">environmentalissues</span>, <span word="among">among</span> <span word="them">them</span> <span word="acid">acid</span> <span word="rain">rain</span>. <span word="Since">Since</span> <span word="the">the</span> <span word="late">late</span> 1960<span word="s">s</span> <span word="problems">problems</span> <span word="of">of</span> <span word="emissioncontrol">emissioncontrol</span> <span word="and">and</span> <span word="waste">waste</span> <span word="disposal">disposal</span> <span word="have">have</span> <span word="sharply">sharply</span> <span word="reduced">reduced</span> <span word="the">the</span> <span word="appeal">appeal</span> <span word="of">of</span> <span word="coal">coal</span>-<span word="fired">fired</span> <span word="powerplants">powerplants</span>. <span word="The">The</span> <span word="cost">cost</span> <span word="of">of</span> <span word="ameliorating">ameliorating</span> <span word="these">these</span> <span word="environmental">environmental</span> <span word="problems">problems</span> <span word="alongwith">alongwith</span> <span word="the">the</span> <span word="rising">rising</span> <span word="cost">cost</span> <span word="of">of</span> <span word="building">building</span> <span word="a">a</span> <span word="facility">facility</span> <span word="as">as</span> <span word="large">large</span> <span word="and">and</span> <span word="complex">complex</span> <span word="as">as</span> <span word="acoal">acoal</span>-<span word="fired">fired</span> <span word="power">power</span> <span word="plant">plant</span>, <span word="have">have</span> <span word="also">also</span> <span word="made">made</span> <span word="such">such</span> <span word="plants">plants</span> <span word="less">less</span> <span word="attractivefrom">attractivefrom</span> <span word="a">a</span> <span word="purely">purely</span> <span word="economic">economic</span> <span word="perspective">perspective</span>.</p>
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