2017高考英语二轮复习限时训练29 科普知识型阅读理解（1）
<p> 专限时训练(二十九) [科普知识型阅读理解(一)]</p><p> (限时：每篇7分钟)</p><p> (一)</p><p> <span word="How">How</span> <span word="you">you</span> <span word="end">end</span> <span word="a">a</span> <span word="computer">computer</span> <span word="session">session</span> <span word="depends">depends</span> <span word="on">on</span> <span word="how">how</span> <span word="you">you</span> <span word="use">use</span> <span word="the">the</span> <span word="computer">computer</span>, <span word="your">your</span> <span word="views">views</span> <span word="on">on</span> <span word="energy">energy</span> <span word="conservation">conservation</span> (能源的节约),</p><p> <span word="and">and</span> <span word="what">what</span> <span word="you">you</span> <span word="have">have</span> <span word="been">been</span> <span word="told">told</span> <span word="about">about</span> <span word="how">how</span> <span word="your">your</span> <span word="decision">decision</span> <span word="will">will</span> <span word="affect">affect</span> <span word="your">your</span> <span word="investment">investment</span>’<span word="s">s</span> <span word="longevity">longevity</span>: <span word="will">will</span> <span word="frequent">frequent</span> <span word="starting">starting</span> <span word="and">and</span> <span word="stopping">stopping</span> <span word="cause">cause</span> <span word="its">its</span> <span word="circuits">circuits</span>(电路) <span word="to">to</span> <span word="burn">burn</span> <span word="out">out</span> <span word="sooner">sooner</span>?</p><p> <span word="Rest">Rest</span> <span word="easy">easy</span>, <span word="your">your</span> <span word="computer">computer</span> <span word="is">is</span> <span word="more">more</span> <span word="likely">likely</span> <span word="to">to</span> <span word="be">be</span> <span word="damaged">damaged</span> <span word="by">by</span> <span word="a">a</span> <span word="virus">virus</span> <span word="picked">picked</span> <span word="up">up</span> <span word="from">from</span> <span word="the">the</span> <span word="Internet">Internet</span> <span word="than">than</span> <span word="by">by</span> <span word="being">being</span> <span word="turned">turned</span> <span word="off">off</span> <span word="and">and</span> <span word="on">on</span> <span word="too">too</span> <span word="much">much</span>. <span word="They">They</span> <span word="are">are</span> <span word="also">also</span> <span word="energy">energy</span><span word="efficient">efficient</span>: <span word="such">such</span> <span word="efficiency">efficiency</span> <span word="has">has</span> <span word="reached">reached</span> <span word="the">the</span> <span word="point">point</span> <span word="where">where</span> <span word="most">most</span> <span word="computers">computers</span> <span word="place">place</span> <span word="themselves">themselves</span> <span word="in">in</span> <span word="sleep">sleep</span> <span word="mode">mode</span> <span word="if">if</span> <span word="they">they</span> <span word="remain">remain</span> <span word="idle">idle</span> (闲置的) <span word="for">for</span> <span word="a">a</span> <span word="certain">certain</span> <span word="period">period</span> <span word="of">of</span> <span word="time">time</span>. <span word="So">So</span> <span word="your">your</span> <span word="computer">computer</span> <span word="will">will</span> <span word="likely">likely</span> <span word="slip">slip</span> <span word="into">into</span> <span word="sleep">sleep</span> <span word="mode">mode</span> <span word="anyway">anyway</span>, <span word="even">even</span> <span word="if">if</span> <span word="you">you</span> <span word="leave">leave</span> <span word="it">it</span> <span word="on">on</span> <span word="overnight">overnight</span>.</p><p> <span word="Sleep">Sleep</span> <span word="mode">mode</span> <span word="itself">itself</span>, <span word="once">once</span> <span word="a">a</span> <span word="pretty">pretty</span> <span word="unreliable">unreliable</span> <span word="option">option</span>—<span word="you">you</span> <span word="never">never</span> <span word="knew">knew</span> <span word="if">if</span> <span word="you">you</span> <span word="would">would</span> <span word="be">be</span> <span word="able">able</span> <span word="to">to</span> <span word="wake">wake</span> <span word="your">your</span> <span word="computer">computer</span> <span word="without">without</span> <span word="having">having</span> <span word="to">to</span> <span word="reboot">reboot</span> (重新启动)</p><p> <span word="it">it</span>—<span word="has">has</span> <span word="been">been</span> <span word="vastly">vastly</span> <span word="improved">improved</span> <span word="with">with</span> <span word="newer">newer</span> <span word="operating">operating</span> <span word="systems">systems</span>. <span word="If">If</span> <span word="you">you</span> <span word="want">want</span> <span word="your">your</span> <span word="computer">computer</span> <span word="to">to</span> <span word="consume">consume</span> <span word="as">as</span> <span word="little">little</span> <span word="energy">energy</span> <span word="as">as</span> <span word="possible">possible</span> <span word="when">when</span> <span word="not">not</span> <span word="in">in</span> <span word="use">use</span>, <span word="shut">shut</span> <span word="it">it</span> <span word="down">down</span>. <span word="If">If</span> <span word="you">you</span> <span word="want">want</span> <span word="it">it</span> <span word="to">to</span> <span word="consume">consume</span> <span word="zero">zero</span> <span word="energy">energy</span>, <span word="you">you</span>’<span word="re">re</span> <span word="going">going</span> <span word="to">to</span> <span word="have">have</span> <span word="to">to</span> <span word="unplug">unplug</span> (拔去……的电源插头) <span word="it">it</span>.</p><p> <span word="Your">Your</span> <span word="computer">computer</span> <span word="can">can</span> <span word="be">be</span> <span word="in">in</span> <span word="only">only</span> <span word="three">three</span> <span word="states">states</span>: <span word="on">on</span>, <span word="sleep">sleep</span> <span word="or">or</span> <span word="off">off</span>—<span word="each">each</span> <span word="of">of</span> <span word="which">which</span> <span word="draws">draws</span> <span word="some">some</span> <span word="level">level</span> <span word="of">of</span> <span word="electric">electric</span> <span word="current">current</span>.<span word="A">A</span> <span word="computer">computer</span> <span word="that">that</span> <span word="is">is</span> “<span word="on">on</span>” <span word="will">will</span> <span word="either">either</span> <span word="be">be</span> <span word="actively">actively</span> <span word="processing">processing</span> <span word="information">information</span> <span word="or">or</span> <span word="sitting">sitting</span> <span word="idle">idle</span>, <span word="depending">depending</span> <span word="on">on</span> <span word="whether">whether</span> <span word="the">the</span> <span word="user">user</span> <span word="is">is</span> <span word="typing">typing</span> <span word="a">a</span> <span word="document">document</span>, <span word="reading">reading</span> <span word="an">an</span> <span word="e">e</span><span word="mail">mail</span> <span word="or">or</span> <span word="has">has</span> <span word="stepped">stepped</span> <span word="away">away</span> <span word="briefly">briefly</span>. <span word="The">The</span> <span word="amount">amount</span> <span word="of">of</span> <span word="wattage">wattage</span> (瓦特数) <span word="drawn">drawn</span> <span word="when">when</span> <span word="the">the</span> <span word="computer">computer</span> <span word="is">is</span> <span word="on">on</span> <span word="varies">varies</span> <span word="greatly">greatly</span> <span word="depending">depending</span> <span word="on">on</span> <span word="whether">whether</span> <span word="it">it</span> <span word="is">is</span> <span word="a">a</span> <span word="laptop">laptop</span> <span word="or">or</span> <span word="a">a</span> <span word="desktop">desktop</span> <span word="computer">computer</span>. <span word="The">The</span> <span word="latter">latter</span> <span word="uses">uses</span> <span word="more">more</span> <span word="energy">energy</span> <span word="because">because</span> <span word="desktop">desktop</span> <span word="power">power</span> <span word="supplies">supplies</span> <span word="are">are</span> <span word="less">less</span> <span word="efficient">efficient</span> <span word="and">and</span> <span word="require">require</span> <span word="a">a</span> <span word="separate">separate</span> <span word="and">and</span> <span word="often">often</span> <span word="larger">larger</span>, <span word="power">power</span><span word="hungry">hungry</span> <span word="monitor">monitor</span>.</p>
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