职称英语《综合类》考试阅读理解必备练习(3)
<p> <span word="Adaptation">Adaptation</span> <span word="of">of</span> <span word="Living">Living</span> <span word="Things">Things</span></p><p> <span word="Certain">Certain</span> <span word="animals">animals</span> <span word="and">and</span> <span word="plants">plants</span> <span word="develop">develop</span> <span word="characteristics">characteristics</span> <span word="that">that</span> <span word="help">help</span> <span word="them">them</span> <span word="cope">cope</span> <span word="with">with</span> <span word="their">their</span> <span word="environment">environment</span> <span word="better">better</span> <span word="than">than</span> <span word="others">others</span> <span word="of">of</span> <span word="their">their</span> <span word="kind">kind</span>. <span word="This">This</span> <span word="natural">natural</span> <span word="biological">biological</span> <span word="process">process</span> <span word="is">is</span> <span word="called">called</span> <span word="adaptation">adaptation</span>. <span word="Among">Among</span> <span word="the">the</span> <span word="superior">superior</span> <span word="characteristics">characteristics</span> <span word="developed">developed</span> <span word="through">through</span> <span word="adaptation">adaptation</span> <span word="are">are</span> <span word="those">those</span> <span word="that">that</span> <span word="may">may</span> <span word="help">help</span> <span word="in">in</span> <span word="getting">getting</span> <span word="food">food</span> <span word="or">or</span> <span word="shelter">shelter</span>, <span word="in">in</span> <span word="providing">providing</span> <span word="protection">protection</span>, <span word="and">and</span> <span word="in">in</span> <span word="producing">producing</span> <span word="and">and</span> <span word="protecting">protecting</span> <span word="the">the</span> <span word="young">young</span>. <span word="That">That</span> <span word="results">results</span> <span word="in">in</span> <span word="the">the</span> <span word="evolution">evolution</span> <span word="of">of</span> <span word="more">more</span> <span word="and">and</span> <span word="more">more</span> <span word="organisms">organisms</span> <span word="that">that</span> <span word="are">are</span> <span word="better">better</span> <span word="fitted">fitted</span> <span word="to">to</span> <span word="their">their</span> <span word="environments">environments</span>.</p><p> <span word="Each">Each</span> <span word="living">living</span> <span word="thing">thing</span> <span word="is">is</span> <span word="adapted">adapted</span> <span word="to">to</span> <span word="its">its</span> <span word="way">way</span> <span word="of">of</span> <span word="life">life</span> <span word="in">in</span> <span word="a">a</span> <span word="general">general</span> <span word="way">way</span>, <span word="but">but</span> <span word="each">each</span> <span word="is">is</span> <span word="adapted">adapted</span> <span word="especially">especially</span> <span word="to">to</span> <span word="its">its</span> <span word="own">own</span> <span word="distinct">distinct</span> <span word="class">class</span>. <span word="A">A</span> <span word="plant">plant</span>, <span word="for">for</span> <span word="example">example</span>, <span word="depends">depends</span> <span word="upon">upon</span> <span word="its">its</span> <span word="roots">roots</span> <span word="to">to</span> <span word="fix">fix</span> <span word="itself">itself</span> <span word="firmly">firmly</span> <span word="and">and</span> <span word="to">to</span> <span word="absorb">absorb</span> <span word="water">water</span> <span word="and">and</span> <span word="inorganic">inorganic</span> <span word="chemicals">chemicals</span>. <span word="It">It</span> <span word="depends">depends</span> <span word="upon">upon</span> <span word="its">its</span> <span word="green">green</span> <span word="leaves">leaves</span> <span word="for">for</span> <span word="using">using</span> <span word="the">the</span> <span word="suns">suns</span> <span word="energy">energy</span> <span word="to">to</span> <span word="make">make</span> <span word="food">food</span> <span word="from">from</span> <span word="inorganic">inorganic</span> <span word="chemicals">chemicals</span>. <span word="These">These</span> <span word="are">are</span> <span word="general">general</span> <span word="adaptations">adaptations</span>, <span word="common">common</span> <span word="to">to</span> <span word="most">most</span> <span word="plants">plants</span>. <span word="In">In</span> <span word="addition">addition</span>, <span word="there">there</span> <span word="are">are</span> <span word="special">special</span> <span word="adaptations">adaptations</span> <span word="that">that</span> <span word="only">only</span> <span word="certain">certain</span> <span word="kinds">kinds</span> <span word="of">of</span> <span word="plants">plants</span> <span word="have">have</span>.</p><p> <span word="Many">Many</span> <span word="animals">animals</span> <span word="have">have</span> <span word="adaptations">adaptations</span> <span word="that">that</span> <span word="help">help</span> <span word="them">them</span> <span word="escape">escape</span> <span word="from">from</span> <span word="their">their</span> <span word="enemies">enemies</span>. <span word="Some">Some</span> <span word="insects">insects</span> <span word="are">are</span> <span word="hidden">hidden</span> <span word="by">by</span> <span word="their">their</span> <span word="body">body</span> <span word="color">color</span> <span word="or">or</span> <span word="shape">shape</span>, <span word="and">and</span> <span word="many">many</span> <span word="look">look</span> <span word="like">like</span> <span word="a">a</span> <span word="leaf">leaf</span> <span word="or">or</span> <span word="a">a</span> <span word="little">little</span> <span word="branch">branch</span>. <span word="The">The</span> <span word="coats">coats</span> <span word="of">of</span> <span word="deer">deer</span> <span word="are">are</span> <span word="colored">colored</span> <span word="to">to</span> <span word="mix">mix</span> <span word="with">with</span> <span word="the">the</span> <span word="surroundings">surroundings</span>. <span word="Many">Many</span> <span word="animals">animals</span> <span word="have">have</span> <span word="the">the</span> <span word="ability">ability</span> <span word="to">to</span> <span word="remain">remain</span> <span word="completely">completely</span> <span word="still">still</span> <span word="when">when</span> <span word="an">an</span> <span word="enemy">enemy</span> <span word="is">is</span> <span word="near">near</span>.</p><p> <span word="Organisms">Organisms</span> <span word="have">have</span> <span word="a">a</span> <span word="great">great</span> <span word="variety">variety</span> <span word="of">of</span> <span word="ways">ways</span> <span word="of">of</span> <span word="adapting">adapting</span>. <span word="They">They</span> <span word="may">may</span> <span word="adapt">adapt</span> <span word="in">in</span> <span word="their">their</span> <span word="structure">structure</span>, <span word="function">function</span>, <span word="and">and</span> <span word="genetics">genetics</span>; <span word="in">in</span> <span word="their">their</span> <span word="development">development</span> <span word="and">and</span> <span word="production">production</span> <span word="of">of</span> <span word="the">the</span> <span word="young">young</span>; <span word="and">and</span> <span word="in">in</span> <span word="other">other</span> <span word="respects">respects</span>. <span word="An">An</span> <span word="organism">organism</span> <span word="may">may</span> <span word="create">create</span> <span word="its">its</span> <span word="own">own</span> <span word="environment">environment</span>, <span word="as">as</span> <span word="do">do</span> <span word="warm">warm</span>-<span word="blooded">blooded</span> <span word="mammals">mammals</span>, <span word="which">which</span> <span word="have">have</span> <span word="the">the</span> <span word="ability">ability</span> <span word="to">to</span> <span word="adjust">adjust</span> <span word="body">body</span> <span word="heat">heat</span> <span word="exactly">exactly</span> <span word="to">to</span> <span word="maintain">maintain</span> <span word="their">their</span> <span word="ideal">ideal</span> <span word="temperature">temperature</span> <span word="despite">despite</span> <span word="changing">changing</span> <span word="weather">weather</span>. <span word="Usually">Usually</span> <span word="adaptations">adaptations</span> <span word="are">are</span> <span word="an">an</span> <span word="advantage">advantage</span>, <span word="but">but</span> <span word="sometimes">sometimes</span> <span word="an">an</span> <span word="organism">organism</span> <span word="is">is</span> <span word="so">so</span> <span word="well">well</span> <span word="adapted">adapted</span> <span word="to">to</span> <span word="a">a</span> <span word="particular">particular</span> <span word="environment">environment</span> <span word="that">that</span> <span word="if">if</span> <span word="conditions">conditions</span> <span word="change">change</span>, <span word="it">it</span> <span word="finds">finds</span> <span word="it">it</span> <span word="difficult">difficult</span> <span word="or">or</span> <span word="impossible">impossible</span> <span word="to">to</span> <span word="readapt">readapt</span> <span word="to">to</span> <span word="the">the</span> <span word="new">new</span> <span word="conditions">conditions</span>.</p>
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