2015年职称英语理工类阅读理解训练题(1)
<p> <span word="Backpacks">Backpacks</span> <span word="are">are</span> <span word="convenient">convenient</span>. <span word="They">They</span> <span word="can">can</span> <span word="hold">hold</span> <span word="your">your</span> <span word="books">books</span>，<span word="your">your</span> <span word="lunch">lunch</span>，<span word="and">and</span> <span word="achange">achange</span> <span word="of">of</span> <span word="clothes">clothes</span>，<span word="leaving">leaving</span> <span word="your">your</span> <span word="hands">hands</span> <span word="free">free</span> <span word="to">to</span> <span word="do">do</span> <span word="other">other</span> <span word="things">things</span>.<span word="Someday">Someday</span>，<span word="if">if</span> <span word="youdont">youdont</span> <span word="mind">mind</span> <span word="carrying">carrying</span> <span word="a">a</span> <span word="heavy">heavy</span> <span word="load">load</span>，<span word="your">your</span> <span word="backpacks">backpacks</span> <span word="might">might</span> <span word="also">also</span> <span word="power">power</span> <span word="your">your</span> <span word="MP">MP</span>31<span word="player">player</span>，<span word="keep">keep</span> <span word="your">your</span> <span word="cell">cell</span> <span word="phone">phone</span> <span word="running">running</span>，<span word="and">and</span> <span word="maybe">maybe</span> <span word="even">even</span> <span word="light">light</span> <span word="your">your</span> <span word="wayhome">wayhome</span>.</p><p> <span word="Lawrence">Lawrence</span> <span word="C">C</span>. <span word="Rome">Rome</span> <span word="and">and</span> <span word="his">his</span> <span word="colleagues">colleagues</span> <span word="from">from</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Pennsylvania">Pennsylvania</span> <span word="in">in</span> <span word="Philadelphia">Philadelphia</span>2 <span word="and">and</span> <span word="the">the</span> <span word="Marine">Marine</span> <span word="Biological">Biological</span> <span word="Laboratory">Laboratory</span> <span word="in">in</span> <span word="WoodsHole">WoodsHole</span>3，<span word="Mass">Mass</span>.4，<span word="have">have</span> <span word="invented">invented</span> <span word="a">a</span> <span word="backpack">backpack</span> <span word="that">that</span> <span word="makes">makes</span> <span word="electricity">electricity</span> <span word="from">from</span> <span word="energyproduced">energyproduced</span> <span word="while">while</span> <span word="its">its</span> <span word="wearer">wearer</span> <span word="walks">walks</span>. <span word="In">In</span> <span word="military">military</span> <span word="actions">actions</span>，<span word="search">search</span>-<span word="and">and</span>-<span word="rescueoperations">rescueoperations</span>，<span word="and">and</span> <span word="scientific">scientific</span> <span word="field">field</span> <span word="studies">studies</span>，<span word="people">people</span> <span word="rely">rely</span> <span word="increasingly">increasingly</span> <span word="on">on</span> <span word="cellphones">cellphones</span>，<span word="global">global</span> <span word="positioning">positioning</span> <span word="system">system</span> 5 <span word="receivers">receivers</span>，<span word="night">night</span>-<span word="vision">vision</span> <span word="goggles">goggles</span>，<span word="andother">andother</span> <span word="battery">battery</span> <span word="powered">powered</span> <span word="devices">devices</span> <span word="to">to</span> <span word="get">get</span> <span word="around">around</span> <span word="and">and</span> <span word="do">do</span> <span word="their">their</span> <span word="work">work</span>. <span word="The">The</span> <span word="backpackselectricity">backpackselectricity</span>- <span word="generating">generating</span> <span word="feature">feature</span> <span word="could">could</span> <span word="dramatically">dramatically</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="amount">amount</span> <span word="of">of</span> <span word="awearers">awearers</span> <span word="load">load</span> <span word="now">now</span> <span word="devoted">devoted</span> <span word="to">to</span> <span word="spare">spare</span> <span word="batteries">batteries</span>，<span word="report">report</span> <span word="Rome">Rome</span> <span word="and">and</span> <span word="his">his</span> <span word="colleagues">colleagues</span> <span word="inthe">inthe</span> <span word="Sept">Sept</span>.9 <span word="Science">Science</span>6.</p><p> <span word="The">The</span> <span word="backpacks">backpacks</span> <span word="electricity">electricity</span>-<span word="creating">creating</span> <span word="powers">powers</span> <span word="depend">depend</span> <span word="onsprings">onsprings</span> <span word="used">used</span> <span word="to">to</span> <span word="hang">hang</span> <span word="a">a</span> <span word="cloth">cloth</span> <span word="pack">pack</span> <span word="from">from</span> <span word="its">its</span> <span word="metal">metal</span> <span word="frame">frame</span>.<span word="The">The</span> <span word="frame">frame</span> <span word="sits">sits</span> <span word="againstthe">againstthe</span> <span word="wearers">wearers</span> <span word="back">back</span>，<span word="and">and</span> <span word="the">the</span> <span word="whole">whole</span> <span word="pack">pack</span> <span word="moves">moves</span> <span word="up">up</span> <span word="and">and</span> <span word="down">down</span> <span word="as">as</span> <span word="the">the</span> <span word="person">person</span> <span word="walks">walks</span>.<span word="Agear">Agear</span> <span word="mechanism">mechanism</span> <span word="converts">converts</span> <span word="vertical">vertical</span> <span word="movements">movements</span> <span word="of">of</span> <span word="the">the</span> <span word="pack">pack</span> <span word="to">to</span> <span word="rotary">rotary</span> <span word="motions">motions</span> <span word="of">of</span> <span word="anelectrical">anelectrical</span> <span word="generator">generator</span>，<span word="producing">producing</span> <span word="up">up</span> <span word="to">to</span> 7.4 <span word="watts">watts</span>.</p><p> <span word="Unexpectedly">Unexpectedly</span>，<span word="tests">tests</span> <span word="showedthat">showedthat</span> <span word="wearers">wearers</span> <span word="of">of</span> <span word="the">the</span> <span word="new">new</span> <span word="backpack">backpack</span> <span word="alter">alter</span> <span word="their">their</span> <span word="gaits">gaits</span> <span word="in">in</span> <span word="response">response</span> <span word="to">to</span> <span word="the">the</span> <span word="packsoscillations">packsoscillations</span>，<span word="so">so</span> <span word="that">that</span> <span word="they">they</span> <span word="carry">carry</span> <span word="loads">loads</span> <span word="more">more</span> <span word="comfortably">comfortably</span> <span word="and">and</span> <span word="with">with</span> <span word="less">less</span> <span word="effortthan">effortthan</span> <span word="they">they</span> <span word="do">do</span> <span word="ordinary">ordinary</span> <span word="backpacks">backpacks</span>. <span word="Because">Because</span> <span word="of">of</span> <span word="that">that</span> <span word="surprising">surprising</span> <span word="advantage">advantage</span>，<span word="Rome">Rome</span> <span word="plans">plans</span> <span word="to">to</span> <span word="commercialize">commercialize</span> <span word="both">both</span> <span word="electric">electric</span> <span word="and">and</span> <span word="non">non</span>-<span word="electric">electric</span> <span word="versionsof">versionsof</span> <span word="the">the</span> <span word="backpack">backpack</span>.</p>
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