2012年职称英语考试-理工类C级阅读理解
<p> <span word="Making">Making</span> <span word="Light">Light</span> <span word="of">of</span>1 <span word="Sleep">Sleep</span></p><p> <span word="All">All</span> <span word="we">we</span> <span word="have">have</span> <span word="a">a</span> <span word="clock">clock</span> <span word="located">located</span> <span word="inside">inside</span> <span word="our">our</span> <span word="brains">brains</span>. <span word="Similar">Similar</span> <span word="to">to</span> <span word="your">your</span> <span word="bedside">bedside</span> <span word="alarm">alarm</span> <span word="clock">clock</span>， <span word="your">your</span> <span word="internal">internal</span> <span word="clock">clock</span>2 <span word="runs">runs</span> <span word="on">on</span> <span word="a">a</span> 24-<span word="hour">hour</span> <span word="cycle">cycle</span>. <span word="This">This</span> <span word="cycle">cycle</span>，<span word="called">called</span> <span word="a">a</span> <span word="circadian">circadian</span> <span word="rhythm">rhythm</span>，<span word="helps">helps</span> <span word="control">control</span> <span word="when">when</span></p><p> <span word="you">you</span> <span word="wake">wake</span>，<span word="when">when</span> <span word="you">you</span> <span word="eat">eat</span> <span word="and">and</span> <span word="when">when</span> <span word="you">you</span> <span word="sleep">sleep</span>.</p><p> <span word="Somewhere">Somewhere</span> <span word="around">around</span> <span word="puberty">puberty</span>，<span word="something">something</span> <span word="happens">happens</span> <span word="in">in</span> <span word="the">the</span> <span word="timing">timing</span> <span word="of">of</span> <span word="the">the</span> <span word="biological">biological</span> <span word="clock">clock</span>. <span word="The">The</span></p><p> <span word="clock">clock</span> <span word="pushes">pushes</span> <span word="forward">forward</span>，<span word="so">so</span> <span word="adolescents">adolescents</span> <span word="and">and</span> <span word="teenagers">teenagers</span> <span word="are">are</span> <span word="unable">unable</span> <span word="to">to</span> <span word="fall">fall</span> <span word="asleep">asleep</span> <span word="as">as</span> <span word="early">early</span> <span word="as">as</span> <span word="they">they</span> <span word="used">used</span> <span word="to">to</span>. <span word="When">When</span> <span word="your">your</span> <span word="mother">mother</span> <span word="tells">tells</span> <span word="you">you</span> <span word="its">its</span> <span word="time">time</span> <span word="for">for</span> <span word="bed">bed</span>，<span word="your">your</span> <span word="body">body</span> <span word="may">may</span> <span word="be">be</span> <span word="pushing">pushing</span> <span word="you">you</span> <span word="to">to</span> <span word="stay">stay</span> <span word="up">up</span>3 <span word="for">for</span> <span word="several">several</span> <span word="hours">hours</span> <span word="more">more</span>. <span word="And">And</span> <span word="the">the</span> <span word="light">light</span> <span word="coming">coming</span> <span word="from">from</span> <span word="your">your</span> <span word="computer">computer</span> <span word="screen">screen</span> <span word="or">or</span> <span word="TV">TV</span> <span word="could">could</span> <span word="be">be</span> <span word="pushing">pushing</span> <span word="you">you</span> <span word="to">to</span> <span word="stay">stay</span> <span word="up">up</span> <span word="even">even</span> <span word="later">later</span>.</p><p> <span word="This">This</span> <span word="shift">shift</span>4 <span word="is">is</span> <span word="natural">natural</span> <span word="for">for</span> <span word="teenagers">teenagers</span>. <span word="But">But</span> <span word="staying">staying</span> <span word="up">up</span> <span word="very">very</span> <span word="late">late</span> <span word="and">and</span> <span word="sleeping">sleeping</span> <span word="late">late</span> <span word="can">can</span> <span word="get">get</span> <span word="your">your</span> <span word="bodys">bodys</span> <span word="clock">clock</span> <span word="out">out</span> <span word="of">of</span> <span word="sync">sync</span> <span word="with">with</span> <span word="the">the</span> <span word="cycle">cycle</span> <span word="of">of</span> <span word="light">light</span> <span word="and">and</span> <span word="dark">dark</span>5. <span word="It">It</span> <span word="can">can</span> <span word="also">also</span> <span word="make">make</span> <span word="it">it</span> <span word="hard">hard</span> <span word="to">to</span> <span word="get">get</span> <span word="out">out</span> <span word="of">of</span> <span word="bed">bed</span> <span word="in">in</span> <span word="the">the</span> <span word="morning">morning</span> <span word="and">and</span> <span word="may">may</span> <span word="bring">bring</span> <span word="other">other</span> <span word="problems">problems</span>，<span word="too">too</span>. <span word="Teenagers">Teenagers</span> <span word="are">are</span> <span word="put">put</span> <span word="in">in</span> <span word="a">a</span> <span word="kind">kind</span> <span word="of">of</span> <span word="a">a</span> <span word="gray">gray</span> <span word="cloud">cloud</span>6 <span word="when">when</span> <span word="they">they</span> <span word="dont">dont</span> <span word="get">get</span> <span word="enough">enough</span> <span word="sleep">sleep</span>，<span word="says">says</span> <span word="Mary">Mary</span> <span word="Carskadon">Carskadon</span>，<span word="a">a</span> <span word="sleep">sleep</span> <span word="researcher">researcher</span> <span word="at">at</span> <span word="Brown">Brown</span> <span word="University">University</span> <span word="in">in</span> <span word="Providence">Providence</span>，<span word="RI">RI</span>7 .<span word="It">It</span> <span word="affects">affects</span> <span word="their">their</span> <span word="mood">mood</span> <span word="and">and</span> <span word="their">their</span> <span word="ability">ability</span> <span word="to">to</span> <span word="think">think</span> <span word="and">and</span> <span word="learn">learn</span>.</p><p> <span word="But">But</span> <span word="just">just</span> <span word="like">like</span> <span word="your">your</span> <span word="alarm">alarm</span> <span word="clock">clock</span>，<span word="your">your</span> <span word="internal">internal</span> <span word="clock">clock</span> <span word="can">can</span> <span word="be">be</span> <span word="reset">reset</span>. <span word="In">In</span> <span word="fact">fact</span>，<span word="it">it</span> <span word="automatically">automatically</span> <span word="resets">resets</span></p><p> <span word="itself">itself</span> <span word="every">every</span> <span word="day">day</span>. <span word="How">How</span>? <span word="By">By</span> <span word="using">using</span> <span word="the">the</span> <span word="light">light</span> <span word="it">it</span> <span word="gets">gets</span> <span word="through">through</span> <span word="your">your</span> <span word="eyes">eyes</span>.</p><p> <span word="Scientists">Scientists</span> <span word="have">have</span> <span word="known">known</span> <span word="for">for</span> <span word="a">a</span> <span word="long">long</span> <span word="time">time</span> <span word="that">that</span> <span word="the">the</span> <span word="light">light</span> <span word="of">of</span> <span word="day">day</span> <span word="and">and</span> <span word="the">the</span> <span word="dark">dark</span> <span word="of">of</span> <span word="night">night</span> <span word="play">play</span> <span word="important">important</span> <span word="roles">roles</span> <span word="in">in</span> <span word="setting">setting</span> <span word="our">our</span> <span word="internal">internal</span> <span word="clocks">clocks</span>. <span word="For">For</span> <span word="years">years</span>，<span word="researchers">researchers</span> <span word="thought">thought</span> <span word="that">that</span> <span word="the">the</span> <span word="signals">signals</span> <span word="that">that</span> <span word="synchronize">synchronize</span> <span word="the">the</span> <span word="bodys">bodys</span> <span word="clock">clock</span>8 <span word="were">were</span> <span word="handled">handled</span> <span word="through">through</span> <span word="the">the</span> <span word="same">same</span> <span word="pathways">pathways</span> <span word="that">that</span> <span word="we">we</span> <span word="use">use</span> <span word="to">to</span> <span word="see">see</span>.</p>
页:
[1]