2015职称英语理工类B级练习题阅读理解(5)
<p> <span word="U">U</span>.<span word="S">S</span>. <span word="Scientists">Scientists</span> <span word="Confirm">Confirm</span> <span word="Water">Water</span> <span word="on">on</span> <span word="Mars">Mars</span></p><p> <span word="Laboratory">Laboratory</span> <span word="tests">tests</span> <span word="aboard">aboard</span> <span word="NASAs">NASAs</span> <span word="Phoenix">Phoenix</span> <span word="Mars">Mars</span> <span word="Lander">Lander</span> <span word="have">have</span> <span word="identified">identified</span> <span word="water">water</span> <span word="in">in</span> <span word="a">a</span> <span word="soil">soil</span> <span word="sample">sample</span>; <span word="the">the</span> <span word="landers">landers</span> <span word="robotic">robotic</span> <span word="arm">arm</span> <span word="delivered">delivered</span> <span word="the">the</span> <span word="sample">sample</span> <span word="Wednesday">Wednesday</span> <span word="to">to</span> <span word="an">an</span> <span word="instrument">instrument</span> <span word="that">that</span> <span word="identifies">identifies</span> <span word="vapors">vapors</span> <span word="produced">produced</span> <span word="by">by</span> <span word="the">the</span> <span word="heating">heating</span> <span word="of">of</span> <span word="samples">samples</span>.</p><p> <span word="The">The</span> <span word="robotic">robotic</span> <span word="arm">arm</span> <span word="is">is</span> <span word="a">a</span> <span word="critical">critical</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="Phoenix">Phoenix</span> <span word="Mars">Mars</span> <span word="mission">mission</span>. <span word="It">It</span> <span word="is">is</span> <span word="needed">needed</span> <span word="to">to</span> <span word="trench">trench</span> <span word="into">into</span> <span word="the">the</span> <span word="icy">icy</span> <span word="layers">layers</span> <span word="of">of</span> <span word="northern">northern</span> <span word="polar">polar</span> <span word="Mars">Mars</span> <span word="and">and</span> <span word="deliver">deliver</span> <span word="samples">samples</span> <span word="to">to</span> <span word="instruments">instruments</span> <span word="that">that</span> <span word="will">will</span> <span word="analyze">analyze</span> <span word="what">what</span> <span word="Mars">Mars</span> <span word="is">is</span> <span word="made">made</span> <span word="of">of</span>, <span word="what">what</span> <span word="its">its</span> <span word="water">water</span> <span word="is">is</span> <span word="like">like</span>, <span word="and">and</span> <span word="whether">whether</span> <span word="it">it</span> <span word="is">is</span> <span word="or">or</span> <span word="has">has</span> <span word="ever">ever</span> <span word="been">been</span> <span word="a">a</span> <span word="possible">possible</span> <span word="habitat">habitat</span> <span word="for">for</span> <span word="life">life</span>.</p><p> <span word="Mars">Mars</span> <span word="is">is</span> <span word="giving">giving</span> <span word="us">us</span> <span word="some">some</span> <span word="surprises">surprises</span>, <span word="said">said</span> <span word="Phoenix">Phoenix</span> <span word="principal">principal</span> <span word="investigator">investigator</span> <span word="Peter">Peter</span> <span word="Smith">Smith</span> <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Arizona">Arizona</span>. <span word="Were">Were</span> <span word="excited">excited</span> <span word="because">because</span> <span word="surprises">surprises</span> <span word="are">are</span> <span word="where">where</span> <span word="discoveries">discoveries</span> <span word="come">come</span> <span word="from">from</span>. <span word="One">One</span> <span word="surprise">surprise</span> <span word="is">is</span> <span word="how">how</span> <span word="the">the</span> <span word="soil">soil</span> <span word="is">is</span> <span word="behaving">behaving</span>. <span word="The">The</span> <span word="ice">ice</span>-<span word="rich">rich</span> <span word="layers">layers</span> <span word="stick">stick</span> <span word="to">to</span> <span word="the">the</span> <span word="scoop">scoop</span> <span word="when">when</span> <span word="poised">poised</span> <span word="in">in</span> <span word="the">the</span> <span word="sun">sun</span> <span word="above">above</span> <span word="the">the</span> <span word="deck">deck</span>, <span word="different">different</span> <span word="from">from</span> <span word="what">what</span> <span word="we">we</span> <span word="expected">expected</span>, <span word="from">from</span> <span word="all">all</span> <span word="the">the</span> <span word="Mars">Mars</span> <span word="simulation">simulation</span> <span word="testing">testing</span> <span word="weve">weve</span> <span word="done">done</span> <span word="so">so</span> <span word="far">far</span>. </p><p> <span word="The">The</span> <span word="mission">mission</span> <span word="is">is</span> <span word="examining">examining</span> <span word="the">the</span> <span word="sky">sky</span> <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="the">the</span> <span word="ground">ground</span>. <span word="A">A</span> <span word="Canadian">Canadian</span> <span word="instrument">instrument</span> <span word="is">is</span> <span word="using">using</span> <span word="a">a</span> <span word="laser">laser</span> <span word="beam">beam</span> <span word="to">to</span> <span word="study">study</span> <span word="dust">dust</span> <span word="and">and</span> <span word="clouds">clouds</span> <span word="overhead">overhead</span>.</p><p> <span word="A">A</span> <span word="full">full</span>-<span word="circle">circle</span>, <span word="color">color</span> <span word="panorama">panorama</span> <span word="of">of</span> <span word="Phoenixs">Phoenixs</span> <span word="surroundings">surroundings</span> <span word="also">also</span> <span word="has">has</span> <span word="been">been</span> <span word="completed">completed</span> <span word="by">by</span> <span word="the">the</span> <span word="spacecraft">spacecraft</span>.</p><p> 31. <span word="What">What</span> <span word="was">was</span> <span word="discovered">discovered</span> <span word="by">by</span> <span word="NASAs">NASAs</span> <span word="Phoenix">Phoenix</span> <span word="Mars">Mars</span> <span word="Lander">Lander</span> <span word="on">on</span> <span word="Mars">Mars</span>?</p><p> <span word="B">B</span>. <span word="Flowing">Flowing</span> <span word="rivers">rivers</span></p><p> <span word="D">D</span>. <span word="Living">Living</span> <span word="things">things</span></p><p> <span word="A">A</span>. <span word="The">The</span> <span word="sample">sample</span> <span word="vaporized">vaporized</span> <span word="away">away</span></p>
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