职称英语《综合类》考试完形填空专项练习(2)
<p> <span word="Less">Less</span> <span word="Is">Is</span> <span word="More">More</span></p><p> <span word="It">It</span> <span word="sounds">sounds</span> <span word="all">all</span> <span word="wrongdrilling">wrongdrilling</span> <span word="holes">holes</span> <span word="in">in</span> <span word="a">a</span> <span word="piece">piece</span> <span word="of">of</span> <span word="wood">wood</span> <span word="to">to</span> <span word="make">make</span> <span word="it">it</span> <span word="more">more</span> <span word="resistant">resistant</span> <span word="to">to</span> <span word="knocks">knocks</span>. <span word="But">But</span> <span word="it">it</span> <span word="works">works</span> <span word="because">because</span> <span word="the">the</span> <span word="energy">energy</span> <span word="from">from</span> <span word="the">the</span> <span word="blow">blow</span> <span word="gets">gets</span> <span word="distributed">distributed</span> <span word="throughout">throughout</span> <span word="the">the</span> <span word="wood">wood</span> <span word="rather">rather</span> <span word="than">than</span> <span word="focusing">focusing</span> <span word="on">on</span> <span word="one">one</span> <span word="weak">weak</span> <span word="spot">spot</span>. <span word="The">The</span> <span word="discovery">discovery</span> <span word="should">should</span> <span word="lead">lead</span> <span word="to">to</span> <span word="more">more</span> <span word="effective">effective</span> <span word="and">and</span> <span word="lighter">lighter</span> <span word="packaging">packaging</span> <span word="materials">materials</span>.</p><p> <span word="Carpenters">Carpenters</span> <span word="have">have</span> <span word="known">known</span> <span word="centuries">centuries</span> <span word="that">that</span> <span word="some">some</span> <span word="woods">woods</span> <span word="are">are</span> <span word="tougher">tougher</span> <span word="than">than</span> <span word="others">others</span>. <span word="Hickory">Hickory</span> , <span word="for">for</span> <span word="example">example</span>, <span word="was">was</span> <span word="turned">turned</span> <span word="into">into</span> <span word="axe">axe</span> <span word="handles">handles</span> <span word="and">and</span> <span word="cartwheel">cartwheel</span> <span word="spokes">spokes</span> <span word="because">because</span> <span word="it">it</span> <span word="can">can</span> <span word="absorb">absorb</span> <span word="shocks">shocks</span> <span word="without">without</span> <span word="breaking">breaking</span>. <span word="White">White</span> <span word="oak">oak</span>, <span word="for">for</span> <span word="example">example</span>, <span word="is">is</span> <span word="much">much</span> <span word="more">more</span> <span word="easily">easily</span> <span word="damaged">damaged</span> <span word="it">it</span> <span word="is">is</span> <span word="almost">almost</span> <span word="as">as</span> <span word="dense">dense</span>. <span word="Julian">Julian</span> <span word="Vincent">Vincent</span> <span word="at">at</span> <span word="Bathe">Bathe</span> <span word="University">University</span> <span word="and">and</span> <span word="his">his</span> <span word="team">team</span> <span word="were">were</span> <span word="convinced">convinced</span> <span word="the">the</span> <span word="woods">woods</span> <span word="internal">internal</span> <span word="structure">structure</span> <span word="could">could</span> <span word="explain">explain</span> <span word="the">the</span> <span word="differences">differences</span>.</p><p> <span word="Many">Many</span> <span word="trees">trees</span> <span word="have">have</span> <span word="tubular">tubular</span> <span word="vessels">vessels</span> <span word="that">that</span> <span word="run">run</span> <span word="the">the</span> <span word="trunk">trunk</span> <span word="and">and</span> <span word="carry">carry</span> <span word="water">water</span> <span word="to">to</span> <span word="the">the</span> <span word="leaves">leaves</span>. <span word="In">In</span> <span word="oak">oak</span> <span word="they">they</span> <span word="are">are</span> <span word="large">large</span>, <span word="and">and</span> <span word="arranged">arranged</span> <span word="in">in</span> <span word="narrow">narrow</span> <span word="bands">bands</span>, <span word="but">but</span> <span word="in">in</span> <span word="hickory">hickory</span> <span word="they">they</span> <span word="are">are</span> <span word="smaller">smaller</span>, <span word="and">and</span> <span word="more">more</span> <span word="evenly">evenly</span> <span word="distributed">distributed</span>. <span word="The">The</span> <span word="researchers">researchers</span> <span word="this">this</span> <span word="layout">layout</span> <span word="might">might</span> <span word="distribute">distribute</span> <span word="a">a</span> <span word="blows">blows</span> <span word="energy">energy</span> <span word="throughout">throughout</span> <span word="the">the</span> <span word="wood">wood</span>, <span word="soaking">soaking</span> <span word="up">up</span> <span word="a">a</span> <span word="bigger">bigger</span> <span word="hit">hit</span>. <span word="To">To</span> <span word="test">test</span> <span word="the">the</span> <span word="idea">idea</span>, <span word="they">they</span> <span word="drilled">drilled</span> <span word="holes">holes</span> 0.65 <span word="millimetres">millimetres</span> <span word="across">across</span> <span word="into">into</span> <span word="a">a</span> <span word="block">block</span> <span word="of">of</span> <span word="spruce">spruce</span> , <span word="a">a</span> <span word="wood">wood</span> <span word="with">with</span> <span word="vessels">vessels</span>, <span word="and">and</span> <span word="found">found</span> <span word="that">that</span> <span word="withstood">withstood</span> <span word="a">a</span> <span word="harder">harder</span> <span word="knock">knock</span>. <span word="when">when</span> <span word="there">there</span> <span word="were">were</span> <span word="more">more</span> <span word="than">than</span> <span word="about">about</span> 30 <span word="holes">holes</span> <span word="per">per</span> <span word="square">square</span> <span word="centimetre">centimetre</span> <span word="did">did</span> <span word="the">the</span> <span word="woods">woods</span> <span word="performance">performance</span> <span word="drop">drop</span> <span word="off">off</span>.</p><p> <span word="A">A</span> <span word="uniform">uniform</span> <span word="substance">substance</span> <span word="doesnt">doesnt</span> <span word="cope">cope</span> <span word="well">well</span> <span word="with">with</span> <span word="knocks">knocks</span> <span word="because">because</span> <span word="only">only</span> <span word="a">a</span> <span word="small">small</span> <span word="proportion">proportion</span> <span word="of">of</span> <span word="the">the</span> <span word="material">material</span> <span word="is">is</span> <span word="actually">actually</span> . <span word="All">All</span> <span word="the">the</span> <span word="energy">energy</span> <span word="from">from</span> <span word="the">the</span> <span word="blow">blow</span> <span word="goes">goes</span> <span word="towards">towards</span> <span word="breaking">breaking</span> <span word="the">the</span> <span word="material">material</span> <span word="in">in</span> <span word="one">one</span> <span word="or">or</span> <span word="two">two</span> <span word="places">places</span>, <span word="but">but</span> <span word="often">often</span> <span word="the">the</span> <span word="pieces">pieces</span> <span word="left">left</span> <span word="are">are</span> <span word="pristine">pristine</span> .</p>
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