淘金高阶英语六级巅峰阅读 快速阅读03：可再生能源
<p> <span word="Renewable">Renewable</span> <span word="Energy">Energy</span></p><p> <span word="In">In</span> <span word="the">the</span> <span word="past">past</span> <span word="century">century</span>,<span word="it">it</span> <span word="has">has</span> <span word="been">been</span> <span word="seen">seen</span> <span word="that">that</span> <span word="the">the</span> <span word="consumption">consumption</span> <span word="of">of</span> <span word="non">non</span>-<span word="renewable">renewable</span> <span word="sources">sources</span> <span word="of">of</span> <span word="energy">energy</span> <span word="has">has</span> <span word="caused">caused</span> <span word="more">more</span> <span word="environmental">environmental</span> <span word="damage">damage</span> <span word="than">than</span> <span word="any">any</span> <span word="other">other</span> <span word="human">human</span> <span word="activity">activity</span>. <span word="Electricity">Electricity</span> <span word="generated">generated</span> <span word="from">from</span> <span word="fossil">fossil</span> <span word="fuels">fuels</span> <span word="such">such</span> <span word="as">as</span> <span word="coal">coal</span> <span word="and">and</span> <span word="crude">crude</span> <span word="oil">oil</span> <span word="has">has</span> <span word="led">led</span> <span word="to">to</span> <span word="high">high</span> <span word="concentrations">concentrations</span> <span word="of">of</span> <span word="harmful">harmful</span> <span word="gases">gases</span> <span word="in">in</span> <span word="the">the</span> <span word="atmosphere">atmosphere</span>.<span word="This">This</span> <span word="has">has</span> <span word="in">in</span> <span word="turn">turn</span> <span word="led">led</span> <span word="to">to</span> <span word="many">many</span> <span word="problems">problems</span> <span word="being">being</span> <span word="faced">faced</span> <span word="today">today</span> <span word="such">such</span> <span word="as">as</span> <span word="ozone">ozone</span> <span word="depletion">depletion</span> <span word="and">and</span> <span word="global">global</span> <span word="warming">warming</span>. <span word="Vehicular">Vehicular</span> <span word="pollution">pollution</span> <span word="has">has</span> <span word="also">also</span> <span word="been">been</span> <span word="a">a</span> <span word="major">major</span> <span word="problem">problem</span>.</p><p> <span word="Therefore">Therefore</span>,<span word="alternative">alternative</span> <span word="sources">sources</span> <span word="of">of</span> <span word="energy">energy</span> <span word="have">have</span> <span word="become">become</span> <span word="very">very</span> <span word="important">important</span> <span word="and">and</span> <span word="relevant">relevant</span> <span word="to">to</span> <span word="todays">todays</span> <span word="world">world</span>.<span word="These">These</span> <span word="sources">sources</span>,<span word="such">such</span> <span word="as">as</span> <span word="the">the</span> <span word="sun">sun</span> <span word="and">and</span> <span word="wind">wind</span>,<span word="can">can</span> <span word="never">never</span> <span word="be">be</span> <span word="exhausted">exhausted</span> <span word="and">and</span> <span word="therefore">therefore</span> <span word="arc">arc</span> <span word="called">called</span> <span word="renewable">renewable</span>.<span word="They">They</span> <span word="cause">cause</span> <span word="less">less</span> <span word="emission">emission</span> <span word="and">and</span> <span word="are">are</span> <span word="available">available</span> <span word="locally">locally</span>.<span word="Their">Their</span> <span word="use">use</span> <span word="can">can</span>. <span word="to">to</span> <span word="a">a</span> <span word="large">large</span> <span word="extent">extent</span>,<span word="reduce">reduce</span> <span word="chemical">chemical</span>,<span word="radioactive">radioactive</span>, <span word="and">and</span> <span word="thermal">thermal</span> <span word="pollution">pollution</span>. <span word="They">They</span> <span word="stand">stand</span> <span word="out">out</span> <span word="as">as</span> <span word="a">a</span> <span word="viable">viable</span> <span word="source">source</span> <span word="of">of</span> <span word="clean">clean</span> <span word="and">and</span> <span word="limitless">limitless</span> <span word="energy">energy</span>.<span word="These">These</span> <span word="are">are</span> <span word="also">also</span> <span word="known">known</span> <span word="as">as</span> <span word="non">non</span>-<span word="conventional">conventional</span> <span word="sources">sources</span> <span word="of">of</span> <span word="energy">energy</span>.<span word="Most">Most</span> <span word="of">of</span> <span word="the">the</span> <span word="renewable">renewable</span> <span word="sources">sources</span> <span word="of">of</span> <span word="energy">energy</span> <span word="are">are</span> <span word="fairfy">fairfy</span> <span word="non">non</span>-<span word="polluting">polluting</span> <span word="and">and</span> <span word="considered">considered</span> <span word="clean">clean</span> <span word="though">though</span> <span word="biomass">biomass</span>,<span word="a">a</span> <span word="renewable">renewable</span> <span word="source">source</span>,<span word="is">is</span> <span word="a">a</span> <span word="major">major</span> <span word="polluter">polluter</span> <span word="indoors">indoors</span>.</p><p> <span word="Solar">Solar</span> <span word="Energy">Energy</span></p><p> <span word="Solar">Solar</span> <span word="energy">energy</span> <span word="is">is</span> <span word="the">the</span> <span word="most">most</span> <span word="readily">readily</span> <span word="available">available</span> <span word="source">source</span> <span word="of">of</span> <span word="energy">energy</span>.<span word="It">It</span> <span word="does">does</span> <span word="not">not</span> <span word="belong">belong</span> <span word="to">to</span> <span word="anybody">anybody</span> <span word="and">and</span> <span word="is">is</span>,<span word="therefore">therefore</span>,<span word="free">free</span>.<span word="It">It</span> <span word="is">is</span> <span word="also">also</span> <span word="the">the</span> <span word="most">most</span> <span word="important">important</span> <span word="of">of</span> <span word="the">the</span> <span word="non">non</span>-<span word="conventional">conventional</span> <span word="sources">sources</span> <span word="of">of</span> <span word="energy">energy</span> <span word="because">because</span> <span word="it">it</span> <span word="is">is</span> <span word="non">non</span>-<span word="polluting">polluting</span> <span word="and">and</span>,<span word="therefore">therefore</span>.<span word="helps">helps</span> <span word="in">in</span> <span word="lessening">lessening</span> <span word="the">the</span> <span word="greenhouse">greenhouse</span> <span word="effect">effect</span>.</p><p> <span word="Solar">Solar</span> <span word="energy">energy</span> <span word="has">has</span> <span word="been">been</span> <span word="used">used</span> <span word="since">since</span> <span word="prehistoric">prehistoric</span> <span word="times">times</span>.<span word="but">but</span> <span word="in">in</span> <span word="a">a</span> <span word="most">most</span> <span word="primitive">primitive</span> <span word="manner">manner</span>.<span word="Before">Before</span> 1970,<span word="some">some</span> <span word="research">research</span> <span word="and">and</span> <span word="development">development</span> <span word="was">was</span> <span word="carried">carried</span> <span word="out">out</span> <span word="in">in</span> <span word="a">a</span> <span word="few">few</span> <span word="countries">countries</span> <span word="to">to</span> <span word="exploit">exploit</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="more">more</span> <span word="efficiently">efficiently</span>,<span word="but">but</span> <span word="most">most</span> <span word="of">of</span> <span word="this">this</span> <span word="work">work</span> <span word="remained">remained</span> <span word="mainly">mainly</span> <span word="academic">academic</span>.<span word="After">After</span> <span word="the">the</span> <span word="dramatic">dramatic</span> <span word="rise">rise</span> <span word="in">in</span> <span word="oil">oil</span> <span word="prices">prices</span> <span word="in">in</span> <span word="the">the</span> 1970<span word="s">s</span>,<span word="several">several</span> <span word="countries">countries</span> <span word="began">began</span> <span word="to">to</span> <span word="formulate">formulate</span> <span word="extensive">extensive</span> <span word="research">research</span> <span word="and">and</span> <span word="development">development</span> <span word="programmes">programmes</span> <span word="to">to</span> <span word="exploit">exploit</span> <span word="solar">solar</span> <span word="energy">energy</span>.</p>
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