职称英语理工类阅读理解强化训练(4)
<p> <span word="Invisibility">Invisibility</span> <span word="Ring">Ring</span> <span word="Scientists">Scientists</span> <span word="cant">cant</span> <span word="yet">yet</span> <span word="make">make</span> <span word="an">an</span> <span word="invisibility">invisibility</span> <span word="cloak">cloak</span>1 <span word="like">like</span> <span word="the">the</span> <span word="one">one</span> <span word="that">that</span> <span word="Harry">Harry</span> <span word="Potter">Potter</span>2 <span word="uses">uses</span>.<span word="But">But</span>，<span word="for">for</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span>，<span word="theyve">theyve</span> <span word="constructed">constructed</span> <span word="a">a</span> <span word="simple">simple</span> <span word="cloaking">cloaking</span> <span word="device">device</span> <span word="that">that</span> <span word="makes">makes</span> <span word="itself">itself</span> <span word="and">and</span> <span word="somethingplaced">somethingplaced</span> <span word="inside">inside</span> <span word="it">it</span> <span word="invisible">invisible</span> <span word="to">to</span> <span word="microwaves">microwaves</span>. <span word="Invisibility">Invisibility</span> <span word="isnt">isnt</span> <span word="possible">possible</span> <span word="yet">yet</span> <span word="with">with</span> <span word="waves">waves</span> <span word="of">of</span> <span word="light">light</span> <span word="that">that</span> <span word="the">the</span> <span word="human">human</span> <span word="eye">eye</span> <span word="can">can</span> <span word="see">see</span>.<span word="But">But</span> <span word="it">it</span> <span word="is">is</span> <span word="nowpossible">nowpossible</span> <span word="with">with</span> <span word="microwaves">microwaves</span>.<span word="Like">Like</span> <span word="visible">visible</span> <span word="light">light</span>，<span word="microwaves">microwaves</span> <span word="are">are</span> <span word="a">a</span> <span word="form">form</span> <span word="of">of</span> <span word="radiant">radiant</span> <span word="energy">energy</span>.<span word="Theyare">Theyare</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="electromagnetic">electromagnetic</span> <span word="spectrum">spectrum</span>，<span word="which">which</span> <span word="also">also</span> <span word="includes">includes</span> <span word="radio">radio</span> <span word="waves">waves</span>，<span word="infrared">infrared</span> <span word="light">light</span>，<span word="ultraviolet">ultraviolet</span> <span word="rays">rays</span>，<span word="X">X</span> <span word="rays">rays</span>，<span word="and">and</span> <span word="gamma">gamma</span> <span word="rays">rays</span>.<span word="The">The</span> <span word="wavelengths">wavelengths</span> <span word="of">of</span> <span word="microwaves">microwaves</span> <span word="are">are</span> <span word="shorter">shorter</span> <span word="thanthose">thanthose</span> <span word="of">of</span> <span word="radio">radio</span> <span word="waves">waves</span> <span word="but">but</span> <span word="longer">longer</span> <span word="than">than</span> <span word="those">those</span> <span word="of">of</span> <span word="visible">visible</span> <span word="light">light</span>. <span word="To">To</span> <span word="a">a</span> <span word="detector">detector</span> <span word="set">set</span> <span word="up">up</span> <span word="to">to</span> <span word="receive">receive</span> <span word="microwaves">microwaves</span> <span word="on">on</span> <span word="the">the</span> <span word="other">other</span> <span word="side">side</span> <span word="of">of</span> <span word="the">the</span> <span word="ring">ring</span>，<span word="it">it</span> <span word="looks">looks</span> <span word="as">as</span> <span word="if">if</span> <span word="thewaves">thewaves</span> <span word="never">never</span> <span word="changed">changed</span> <span word="their">their</span> <span word="paths">paths</span> <span word="as">as</span> <span word="if">if</span> <span word="there">there</span> <span word="were">were</span> <span word="no">no</span> <span word="object">object</span> <span word="in">in</span> <span word="the">the</span> <span word="way">way</span>! <span word="So">So</span>，<span word="the">the</span> <span word="ring">ring</span> <span word="is">is</span> <span word="effectively">effectively</span> <span word="invisible">invisible</span>. 练习： <span word="Acan">Acan</span> <span word="now">now</span> <span word="make">make</span> <span word="an">an</span> <span word="invisible">invisible</span> <span word="cloak">cloak</span> <span word="of">of</span> <span word="the">the</span> <span word="same">same</span> <span word="kind">kind</span> <span word="as">as</span> <span word="he">he</span> <span word="uses">uses</span>. <span word="Ctry">Ctry</span> <span word="to">to</span> <span word="invent">invent</span> <span word="a">a</span> <span word="device">device</span> <span word="Similar">Similar</span> <span word="in">in</span> <span word="idea">idea</span> <span word="to">to</span> <span word="the">the</span> <span word="invisible">invisible</span> <span word="cloak">cloak</span> <span word="he">he</span> <span word="uses">uses</span>. 2.<span word="What">What</span> <span word="is">is</span> <span word="true">true</span> <span word="of">of</span> <span word="microwaves">microwaves</span>? <span word="BTheir">BTheir</span> <span word="wavelengths">wavelengths</span> <span word="are">are</span> <span word="longer">longer</span> <span word="than">than</span> <span word="those">those</span> <span word="of">of</span> <span word="visible">visible</span> <span word="light">light</span>. <span word="DThey">DThey</span> <span word="are">are</span> <span word="visible">visible</span> <span word="to">to</span> <span word="the">the</span> <span word="human">human</span> <span word="eye">eye</span>. <span word="AIt">AIt</span> <span word="is">is</span> <span word="made">made</span> <span word="of">of</span> <span word="a">a</span> <span word="special">special</span> <span word="material">material</span> <span word="with">with</span> <span word="unusual">unusual</span> <span word="ability">ability</span>. <span word="CMicrowaves">CMicrowaves</span> <span word="pass">pass</span> <span word="through">through</span> <span word="it">it</span> <span word="when">when</span> <span word="they">they</span> <span word="strike">strike</span> <span word="it">it</span>. <span word="side">side</span>. <span word="AA">AA</span> <span word="disk">disk</span> <span word="or">or</span> <span word="plate">plate</span> <span word="placed">placed</span> <span word="under">under</span> <span word="a">a</span> <span word="drinking">drinking</span> <span word="glass">glass</span> <span word="to">to</span> <span word="protect">protect</span> <span word="a">a</span> <span word="table">table</span> <span word="top">top</span>. <span word="CA">CA</span> <span word="roller">roller</span> <span word="coaster">coaster</span>. 5.<span word="Harry">Harry</span> <span word="Potters">Potters</span> <span word="invisibility">invisibility</span> <span word="cloak">cloak</span> <span word="doesnt">doesnt</span> <span word="have">have</span> <span word="any">any</span> <span word="real">real</span> <span word="competition">competition</span> <span word="yet">yet</span>， <span word="Ascientists">Ascientists</span> <span word="have">have</span> <span word="not">not</span> <span word="found">found</span> <span word="out">out</span> <span word="how">how</span> <span word="his">his</span> <span word="cloak">cloak</span> <span word="works">works</span>. <span word="Cthe">Cthe</span> <span word="cloaking">cloaking</span> <span word="device">device</span> <span word="works">works</span> <span word="only">only</span> <span word="for">for</span> <span word="microwaves">microwaves</span>. 答案与题解： 2.<span word="B">B</span>第三段最后一句中告诉我们，<span word="A">A</span>是错误选择，<span word="B">B</span>是正确选择。该段第三句说，微波与可见光一样都是一种辐射能，所以<span word="C">C</span>的说法是错误的，不能选择;根据该段第一句：<span word="with">with</span> <span word="wavesof">wavesof</span> <span word="light">light</span> <span word="that">that</span> <span word="the">the</span> <span word="human">human</span> <span word="eye">eye</span> <span word="can">can</span> <span word="see">see</span>和第三句：<span word="Like">Like</span> <span word="visible">visible</span> <span word="light">light</span>，可以得知<span word="D">D</span>是错误的说法，也不能选择。 4.<span word="A">A</span>第四段第一句告诉我们，科学家的这个隐形装置和一个杯垫差不多大小，所以<span word="A">A</span>是正确选择。<span word="coaster">coaster</span>是一个多义词，其他几个选择是该词的其他意思，<span word="B">B</span>：从事沿海贸易的船;<span word="C">C</span>：过山车，摩天轮;<span word="D">D</span>：海岸地区居民。</p>
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