2015年职称英语考试理工类完形填空基础备考题(5)
<p> <span word="The">The</span> <span word="Development">Development</span> <span word="of">of</span> <span word="Rubber">Rubber</span></p><p> <span word="Here">Here</span> <span word="is">is</span> <span word="the">the</span> <span word="story">story</span> <span word="of">of</span> <span word="rubber">rubber</span>. <span word="From">From</span> <span word="the">the</span> <span word="earliest">earliest</span> <span word="time">time</span> <span word="it">it</span> <span word="was">was</span> __1__ <span word="common">common</span> <span word="knowledge">knowledge</span> <span word="to">to</span> <span word="the">the</span> <span word="Peruvians">Peruvians</span> <span word="that">that</span> <span word="when">when</span> <span word="a">a</span> <span word="cut">cut</span> <span word="was">was</span> <span word="made">made</span> <span word="in">in</span> <span word="the">the</span> <span word="outside">outside</span> <span word="skin">skin</span> <span word="of">of</span> <span word="a">a</span> <span word="rubber">rubber</span> <span word="tree">tree</span>, <span word="a">a</span> <span word="white">white</span> <span word="liquid">liquid</span> __2__ <span word="milk">milk</span> <span word="came">came</span> <span word="out">out</span>, <span word="and">and</span> <span word="that">that</span> __3__ <span word="this">this</span> <span word="a">a</span> <span word="sticky">sticky</span> <span word="mass">mass</span> <span word="of">of</span> <span word="rubber">rubber</span> <span word="might">might</span> <span word="be">be</span> <span word="made">made</span>. <span word="This">This</span> <span word="rubber">rubber</span> <span word="is">is</span> <span word="soft">soft</span> <span word="when">when</span> <span word="warm">warm</span>, <span word="so">so</span> <span word="that">that</span> <span word="it">it</span> <span word="is">is</span> <span word="possible">possible</span> <span word="to">to</span> <span word="give">give</span> <span word="it">it</span> <span word="any">any</span> __4__. <span word="The">The</span> <span word="Peruvians">Peruvians</span> <span word="made">made</span> <span word="the">the</span> <span word="discovery">discovery</span> <span word="that">that</span> <span word="it">it</span> <span word="was">was</span> <span word="very">very</span> <span word="good">good</span> <span word="for">for</span> <span word="keeping">keeping</span> <span word="out">out</span> __5__. <span word="Then">Then</span> <span word="in">in</span> <span word="the">the</span> <span word="early">early</span> 1800<span word="s">s</span>, <span word="the">the</span> <span word="Americans">Americans</span> <span word="made">made</span> <span word="use">use</span> <span word="of">of</span> <span word="it">it</span> <span word="for">for</span> <span word="the">the</span> <span word="first">first</span> <span word="time">time</span>. <span word="First">First</span> <span word="they">they</span> <span word="made">made</span> <span word="overshoes">overshoes</span> __6__ <span word="their">their</span> <span word="feet">feet</span> <span word="dry">dry</span>. <span word="Then">Then</span> <span word="came">came</span> <span word="a">a</span> <span word="certain">certain</span> <span word="Mr">Mr</span>. <span word="Mackintosh">Mackintosh</span>, <span word="who">who</span> <span word="made">made</span> <span word="coats">coats</span> <span word="of">of</span> <span word="cloth">cloth</span> <span word="covered">covered</span> <span word="with">with</span> <span word="natural">natural</span> <span word="rubber">rubber</span>. <span word="From">From</span> <span word="that">that</span> <span word="day">day</span> <span word="to">to</span> <span word="this">this</span> <span word="we">we</span> <span word="have">have</span> <span word="been">been</span> <span word="coating">coating</span> <span word="cloth">cloth</span> <span word="with">with</span> <span word="rubber">rubber</span> <span word="as">as</span> <span word="Mr">Mr</span>. <span word="Mackintosh">Mackintosh</span> __7__, <span word="and">and</span> <span word="our">our</span> <span word="raincoats">raincoats</span> <span word="are">are</span> <span word="still">still</span> <span word="named">named</span> <span word="after">after</span> <span word="him">him</span>.</p><p> <span word="But">But</span> <span word="these">these</span> <span word="first">first</span> <span word="rubber">rubber</span> <span word="overshoes">overshoes</span> <span word="and">and</span> <span word="raincoats">raincoats</span> <span word="were">were</span> <span word="all">all</span> <span word="soft">soft</span> <span word="and">and</span> <span word="sticky">sticky</span> <span word="in">in</span> <span word="summer">summer</span>, <span word="and">and</span> __8__ <span word="and">and</span> <span word="inelastic">inelastic</span> <span word="in">in</span> <span word="the">the</span> <span word="winter">winter</span> <span word="when">when</span> <span word="it">it</span> <span word="was">was</span> <span word="cold">cold</span>. <span word="But">But</span> <span word="the">the</span> <span word="rubber">rubber</span> <span word="we">we</span> <span word="have">have</span> <span word="today">today</span> <span word="is">is</span> <span word="soft">soft</span> <span word="and">and</span> <span word="elastic">elastic</span>, <span word="though">though</span> <span word="very">very</span> <span word="strong">strong</span>---<span word="even">even</span> <span word="in">in</span> <span word="the">the</span> __9__ <span word="summer">summer</span> <span word="and">and</span> <span word="the">the</span> <span word="coldest">coldest</span> <span word="winter">winter</span>. <span word="This">This</span> <span word="was">was</span> <span word="made">made</span> __10__ <span word="by">by</span> <span word="a">a</span> <span word="man">man</span> <span word="called">called</span> <span word="Goodyear">Goodyear</span>. __11__ <span word="experiments">experiments</span>, <span word="he">he</span> <span word="found">found</span> <span word="that">that</span> <span word="nitric">nitric</span> <span word="acid">acid</span> <span word="made">made</span> <span word="the">the</span> <span word="rubber">rubber</span> <span word="much">much</span> <span word="better">better</span>, <span word="but">but</span> <span word="it">it</span> <span word="is">is</span> <span word="not">not</span> <span word="hard">hard</span> <span word="and">and</span> <span word="strong">strong</span> <span word="enough">enough</span>. <span word="Then">Then</span> <span word="strange">strange</span> <span word="thing">thing</span> <span word="took">took</span> <span word="place">place</span>. <span word="A">A</span> <span word="friend">friend</span> <span word="of">of</span> __12__, <span word="Nicholas">Nicholas</span> <span word="Hayward">Hayward</span>, <span word="had">had</span> <span word="the">the</span> <span word="idea">idea</span> <span word="in">in</span> <span word="his">his</span> <span word="sleep">sleep</span> <span word="that">that</span> <span word="rubber">rubber</span> <span word="might">might</span> <span word="be">be</span> <span word="made">made</span> <span word="hard">hard</span> <span word="and">and</span> <span word="strong">strong</span> <span word="if">if</span> <span word="mixed">mixed</span> <span word="with">with</span> <span word="sulphur">sulphur</span> <span word="and">and</span> <span word="put">put</span> <span word="in">in</span> <span word="the">the</span> <span word="sun">sun</span>. <span word="Goodyear">Goodyear</span> <span word="put">put</span> <span word="this">this</span> <span word="idea">idea</span> __13__ <span word="the">the</span> <span word="test">test</span>, <span word="and">and</span> <span word="saw">saw</span> <span word="that">that</span> <span word="it">it</span> <span word="did">did</span> <span word="have">have</span> <span word="more">more</span> <span word="or">or</span> <span word="less">less</span> <span word="the">the</span> <span word="desired">desired</span> <span word="effect">effect</span>---<span word="though">though</span> <span word="somewhat">somewhat</span> <span word="less">less</span> <span word="than">than</span> <span word="more">more</span>. <span word="The">The</span> <span word="only">only</span> <span word="effect">effect</span> <span word="it">it</span> <span word="had">had</span> <span word="was">was</span> <span word="on">on</span> <span word="the">the</span> <span word="outside">outside</span> <span word="of">of</span> <span word="the">the</span> <span word="rubber">rubber</span>. <span word="It">It</span> <span word="is">is</span> <span word="common">common</span> <span word="knowledge">knowledge</span> <span word="now">now</span> <span word="that">that</span> <span word="the">the</span> <span word="way">way</span> <span word="to">to</span> <span word="make">make</span> <span word="rubber">rubber</span> <span word="hard">hard</span> <span word="and">and</span> <span word="strong">strong</span> <span word="is">is</span> __14__ <span word="sulphur">sulphur</span>. <span word="It">It</span> <span word="took">took</span> <span word="Goodyear">Goodyear</span> <span word="four">four</span> <span word="more">more</span> <span word="years">years</span> <span word="to">to</span> <span word="find">find</span> <span word="this">this</span> <span word="method">method</span>. <span word="When">When</span> <span word="at">at</span> <span word="last">last</span> <span word="he">he</span> <span word="did">did</span> <span word="it">it</span>, <span word="he">he</span> <span word="had">had</span> <span word="nothing">nothing</span> <span word="at">at</span> <span word="all">all</span>. <span word="Everything">Everything</span> <span word="of">of</span> <span word="the">the</span> <span word="smallest">smallest</span> <span word="value">value</span> __15__ <span word="to">to</span> <span word="get">get</span> <span word="money">money</span>, <span word="even">even</span> <span word="his">his</span> <span word="sons">sons</span> <span word="school">school</span>-<span word="books">books</span>.</p>
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