2015年职称英语理工类B级完型填空精选(3)
<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></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>. From the earliest time it was __1__ common knowledge to the Peruvians that when a cut was made in the outside skin of a rubber tree, a white liquid __2__ milk came out, and that __3__ this a sticky mass of rubber might be made. This rubber is soft when warm, so that it is possible to give it any __4__. The Peruvians made the discovery that it was very good for keeping out __5__. Then in the early 1800s, the Americans made use of it for the first time. First they made overshoes __6__ their feet dry. Then came a certain Mr. Mackintosh, who made coats of cloth covered with natural rubber. From that day to this we have been coating cloth with rubber as Mr. Mackintosh __7__, and our raincoats are still named after him.</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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