【译林湖南版】2011高考英语一轮复习提能训练：Module 5 Unit 2《The environment》（含解析）
<p> 【译林湖南版】2011高考英语一轮复习提能训练</p><p> <span word="Module">Module</span> 5</p><p> <span word="Unit">Unit</span> 2 <span word="The">The</span> <span word="environment">environment</span>Ⅰ.填词</p><p> <span word="For">For</span> <span word="those">those</span> <span word="who">who</span> <span word="are">are</span> <span word="concerned">concerned</span> <span word="about">about</span> <span word="pollution">pollution</span>，<span word="clean">clean</span> <span word="and">and</span> <span word="renewable">renewable</span> <span word="energy">energy</span> <span word="sources">sources</span> <span word="that">that</span> <span word="help">help</span> <span word="to">to</span> <span word="protect">protect</span> <span word="the">the</span> <span word="environment">environment</span> <span word="such">such</span> <span word="as">as</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="are">are</span> <span word="becoming">becoming</span> <span word="possible">possible</span> <span word="alternatives">alternatives</span> <span word="to">to</span> <span word="oil">oil</span> <span word="and">and</span> <span word="coal">coal</span>.</p><p> <span word="Increasing">Increasing</span> <span word="demand">demand</span> <span word="for">for</span> <span word="clean">clean</span>，<span word="renewable">renewable</span> <span word="energy">energy</span> <span word="drives">drives</span> <span word="a">a</span> <span word="growing">growing</span> <span word="market">market</span> <span word="for">for</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="products">products</span>.<span word="Two">Two</span> <span word="of">of</span> <span word="the">the</span> <span word="main">main</span> <span word="types">types</span> <span word="of">of</span> <span word="heating">heating</span> <span word="products">products</span> <span word="that">that</span> <span word="take">take</span> <span word="advantage">advantage</span> <span word="of">of</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="are">are</span> <span word="passive">passive</span> <span word="and">and</span> <span word="active">active</span> <span word="solar">solar</span> <span word="products">products</span>.<span word="These">These</span> <span word="two">two</span> <span word="types">types</span> <span word="of">of</span> <span word="solar">solar</span> <span word="heating">heating</span> <span word="systems">systems</span> <span word="differ">differ</span> <span word="in">in</span> <span word="how">how</span> <span word="they">they</span> <span word="are">are</span> <span word="constructed">constructed</span> <span word="and">and</span> <span word="can">can</span> <span word="also">also</span> <span word="differ">differ</span> <span word="greatly">greatly</span> <span word="in">in</span> <span word="cost">cost</span>.<span word="Passive">Passive</span> <span word="solar">solar</span> <span word="technology">technology</span> <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="heat">heat</span> <span word="air">air</span> <span word="or">or</span> <span word="water">water</span> <span word="directly">directly</span> <span word="using">using</span> <span word="the">the</span> <span word="sun">sun</span>’<span word="s">s</span> <span word="energy">energy</span>.<span word="Unlike">Unlike</span> <span word="an">an</span> <span word="active">active</span> <span word="solar">solar</span> <span word="application">application</span>，<span word="passive">passive</span> <span word="solar">solar</span> <span word="set">set</span>-<span word="ups">ups</span> <span word="accomplish">accomplish</span> <span word="their">their</span> <span word="task">task</span> <span word="without">without</span> <span word="the">the</span> <span word="use">use</span> <span word="of">of</span> <span word="additional">additional</span> <span word="electrical">electrical</span> <span word="components">components</span>，<span word="such">such</span> <span word="as">as</span> <span word="fans">fans</span> <span word="that">that</span> <span word="need">need</span> <span word="an">an</span> <span word="external">external</span> <span word="electricity">electricity</span> <span word="supply">supply</span>.<span word="Some">Some</span> <span word="solar">solar</span> <span word="space">space</span> <span word="heating">heating</span> <span word="or">or</span> <span word="water">water</span> <span word="heating">heating</span> <span word="systems">systems</span> <span word="are">are</span> <span word="active">active</span> <span word="solar">solar</span> <span word="heating">heating</span> <span word="systems">systems</span> <span word="that">that</span> <span word="have">have</span> <span word="various">various</span> <span word="components">components</span> <span word="that">that</span> <span word="require">require</span> <span word="external">external</span> <span word="power">power</span> <span word="sources">sources</span>.<span word="However">However</span>，<span word="they">they</span> <span word="don">don</span>’<span word="t">t</span> <span word="use">use</span> <span word="the">the</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="directly">directly</span> <span word="to">to</span> <span word="heat">heat</span> <span word="air">air</span> <span word="or">or</span> <span word="water">water</span>.<span word="Because">Because</span> <span word="of">of</span> <span word="their">their</span> <span word="simplicity">simplicity</span> <span word="compared">compared</span> <span word="with">with</span> <span word="active">active</span> <span word="systems">systems</span>，<span word="passive">passive</span> <span word="solar">solar</span> <span word="heating">heating</span> <span word="systems">systems</span> <span word="generally">generally</span> <span word="have">have</span> <span word="the">the</span> <span word="lower">lower</span> <span word="cost">cost</span> <span word="of">of</span> <span word="the">the</span> <span word="two">two</span>.</p><p> <span word="In">In</span> <span word="addition">addition</span> <span word="to">to</span> <span word="these">these</span> <span word="solar">solar</span> <span word="heating">heating</span> <span word="systems">systems</span>，<span word="there">there</span> <span word="are">are</span> <span word="also">also</span> <span word="solar">solar</span> <span word="power">power</span> <span word="systems">systems</span> <span word="available">available</span>.<span word="Rather">Rather</span> <span word="than">than</span> <span word="use">use</span> <span word="the">the</span> <span word="sun">sun</span>’<span word="s">s</span> <span word="energy">energy</span> <span word="for">for</span> <span word="heating">heating</span> <span word="applications">applications</span>，<span word="these">these</span> <span word="systems">systems</span> <span word="change">change</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="into">into</span> <span word="electricity">electricity</span>.<span word="These">These</span> <span word="products">products</span> <span word="are">are</span> <span word="often">often</span> <span word="constructed">constructed</span> <span word="from">from</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="solar">solar</span> <span word="energy">energy</span> <span word="collection">collection</span> <span word="cells">cells</span> <span word="called">called</span> <span word="photovoltaic">photovoltaic</span> <span word="cells">cells</span>，<span word="which">which</span> <span word="generate">generate</span> <span word="electricity">electricity</span> <span word="from">from</span> <span word="light">light</span>.<span word="As">As</span> <span word="sunlight">sunlight</span> <span word="falls">falls</span> <span word="on">on</span> <span word="a">a</span> <span word="photovoltaic">photovoltaic</span> <span word="cell">cell</span>，<span word="the">the</span> <span word="light">light</span>’<span word="s">s</span> <span word="energy">energy</span> <span word="is">is</span> <span word="changed">changed</span> <span word="into">into</span> <span word="electricity">electricity</span> <span word="that">that</span> <span word="can">can</span> <span word="then">then</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="power">power</span> <span word="many">many</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="electronic">electronic</span> <span word="devices">devices</span>.<span word="Because">Because</span> <span word="of">of</span> <span word="the">the</span> <span word="complicated">complicated</span> <span word="technology">technology</span> <span word="involved">involved</span>，<span word="these">these</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="solar">solar</span> <span word="power">power</span> <span word="systems">systems</span> <span word="can">can</span> <span word="be">be</span> <span word="very">very</span> <span word="expensive">expensive</span>.<span word="However">However</span>，<span word="the">the</span> <span word="cost">cost</span> <span word="savings">savings</span> <span word="may">may</span> <span word="eventually">eventually</span> <span word="more">more</span> <span word="than">than</span> <span word="pay">pay</span> <span word="off">off</span> <span word="your">your</span> <span word="initial">initial</span> <span word="investment">investment</span> <span word="in">in</span> <span word="the">the</span> <span word="solar">solar</span> <span word="cells">cells</span>.</p>
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