职称英语综合类阅读理解练习题20
<p> <span word="PASSAGE">PASSAGE</span> 47</p><p> <span word="Food">Food</span> <span word="Fright">Fright</span></p><p> <span word="Experiments">Experiments</span> <span word="under">under</span> <span word="way">way</span> <span word="in">in</span> <span word="several">several</span> <span word="labs">labs</span> <span word="aim">aim</span> <span word="to">to</span> <span word="create">create</span> <span word="beneficial">beneficial</span> <span word="types">types</span> <span word="of">of</span> <span word="genetically">genetically</span> <span word="modified">modified</span> <span word="foods">foods</span>, <span word="including">including</span> <span word="starchier">starchier</span> <span word="potatoes">potatoes</span> <span word="and">and</span> <span word="caffeine">caffeine</span>-<span word="free">free</span> <span word="coffee">coffee</span> <span word="beans">beans</span>. <span word="Genetic">Genetic</span> <span word="engineers">engineers</span> <span word="are">are</span> <span word="even">even</span> <span word="trying">trying</span> <span word="to">to</span> <span word="transfer">transfer</span> <span word="genes">genes</span> <span word="from">from</span> <span word="a">a</span> <span word="cold">cold</span>-<span word="winter">winter</span> <span word="fish">fish</span> <span word="to">to</span> <span word="make">make</span> <span word="a">a</span> <span word="frost">frost</span>-<span word="resistant">resistant</span> <span word="tomato">tomato</span>.</p><p> <span word="A">A</span> <span word="low">low</span>-<span word="sugar">sugar</span> <span word="GM">GM</span> <span word="strawberry">strawberry</span> <span word="now">now</span> <span word="in">in</span> <span word="the">the</span> <span word="works">works</span> <span word="might">might</span> <span word="one">one</span> <span word="day">day</span> <span word="allow">allow</span> <span word="people">people</span> <span word="with">with</span> <span word="health">health</span> <span word="problems">problems</span> <span word="such">such</span> <span word="as">as</span> <span word="diabetes">diabetes</span> <span word="to">to</span> <span word="enjoy">enjoy</span> <span word="the">the</span> <span word="little">little</span> <span word="delicious">delicious</span> <span word="red">red</span> <span word="fruits">fruits</span> <span word="again">again</span>. <span word="GM">GM</span> <span word="beans">beans</span> <span word="and">and</span> <span word="grains">grains</span> <span word="supercharged">supercharged</span> <span word="with">with</span> <span word="protein">protein</span> <span word="might">might</span> <span word="help">help</span> <span word="people">people</span> <span word="at">at</span> <span word="risk">risk</span> <span word="of">of</span> <span word="developing">developing</span> <span word="kwashiorkor">kwashiorkor</span>. <span word="Kwashiorkor">Kwashiorkor</span>, <span word="a">a</span> <span word="disease">disease</span> <span word="caused">caused</span> <span word="by">by</span> <span word="severe">severe</span> <span word="lack">lack</span> <span word="of">of</span> <span word="protein">protein</span>, <span word="is">is</span> <span word="common">common</span> <span word="in">in</span> <span word="parts">parts</span> <span word="of">of</span> <span word="the">the</span> <span word="world">world</span> <span word="where">where</span> <span word="there">there</span> <span word="are">are</span> <span word="severe">severe</span> <span word="food">food</span> <span word="shortages">shortages</span>.</p><p> <span word="Commenting">Commenting</span> <span word="on">on</span> <span word="GM">GM</span> <span word="foods">foods</span>, <span word="Jonathon">Jonathon</span> <span word="Jones">Jones</span>, <span word="a">a</span> <span word="British">British</span> <span word="researcher">researcher</span>, <span word="said">said</span>: <span word="The">The</span> <span word="future">future</span> <span word="benefits">benefits</span> <span word="will">will</span> <span word="be">be</span> <span word="enormous">enormous</span>, <span word="and">and</span> <span word="the">the</span> <span word="best">best</span> <span word="is">is</span> <span word="yet">yet</span> <span word="to">to</span> <span word="come">come</span>.</p><p> <span word="To">To</span> <span word="some">some</span> <span word="people">people</span>, <span word="GM">GM</span> <span word="foods">foods</span> <span word="are">are</span> <span word="no">no</span> <span word="different">different</span> <span word="from">from</span> <span word="unmodified">unmodified</span> <span word="foods">foods</span>. <span word="A">A</span> <span word="tomato">tomato</span> <span word="is">is</span> <span word="a">a</span> <span word="tomato">tomato</span>, <span word="said">said</span> <span word="Brian">Brian</span> <span word="Sansoni">Sansoni</span>, <span word="an">an</span> <span word="American">American</span> <span word="food">food</span> <span word="manufacturer">manufacturer</span>.</p><p> <span word="Critics">Critics</span> <span word="of">of</span> <span word="GM">GM</span> <span word="foods">foods</span> <span word="challenge">challenge</span> <span word="Sansonis">Sansonis</span> <span word="opinion">opinion</span>. <span word="They">They</span> <span word="worry">worry</span> <span word="about">about</span> <span word="the">the</span> <span word="harm">harm</span> <span word="that">that</span> <span word="GM">GM</span> <span word="crops">crops</span> <span word="might">might</span> <span word="do">do</span> <span word="to">to</span> <span word="people">people</span>, <span word="other">other</span> <span word="animals">animals</span>, <span word="and">and</span> <span word="plants">plants</span>.</p><p> <span word="In">In</span> <span word="a">a</span> <span word="recent">recent</span> <span word="lab">lab</span> <span word="study">study</span> <span word="conducted">conducted</span> <span word="at">at</span> <span word="Cornell">Cornell</span> <span word="University">University</span>, <span word="scientists">scientists</span> <span word="tested">tested</span> <span word="pollen">pollen</span> <span word="made">made</span> <span word="by">by</span> <span word="Bt">Bt</span> <span word="corn">corn</span>, <span word="which">which</span> <span word="makes">makes</span> <span word="up">up</span> <span word="one">one</span>-<span word="fourth">fourth</span> <span word="of">of</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>. <span word="corn">corn</span> <span word="crop">crop</span>. <span word="The">The</span> <span word="scientist">scientist</span> <span word="sprinkled">sprinkled</span> <span word="the">the</span> <span word="pollen">pollen</span> <span word="onto">onto</span> <span word="milkweed">milkweed</span>, <span word="a">a</span> <span word="plant">plant</span> <span word="that">that</span> <span word="makes">makes</span> <span word="a">a</span> <span word="milky">milky</span> <span word="juice">juice</span> <span word="and">and</span> <span word="is">is</span> <span word="the">the</span> <span word="only">only</span> <span word="known">known</span> <span word="food">food</span> <span word="source">source</span> <span word="of">of</span> <span word="the">the</span> <span word="monarch">monarch</span> <span word="butterfly">butterfly</span> <span word="caterpillar">caterpillar</span>. <span word="Within">Within</span> <span word="four">four</span> <span word="days">days</span> <span word="of">of</span> <span word="munching">munching</span> <span word="on">on</span> <span word="the">the</span> <span word="milkweed">milkweed</span> <span word="leaves">leaves</span>, <span word="almost">almost</span> <span word="half">half</span> <span word="of">of</span> <span word="a">a</span> <span word="test">test</span> <span word="group">group</span> <span word="of">of</span> <span word="caterpillars">caterpillars</span> <span word="had">had</span> <span word="died">died</span>. <span word="Monarchs">Monarchs</span> <span word="are">are</span> <span word="considered">considered</span> <span word="to">to</span> <span word="be">be</span> <span word="a">a</span> <span word="flagship">flagship</span> <span word="species">species</span> <span word="for">for</span> <span word="conservation">conservation</span>. <span word="said">said</span> <span word="Cornell">Cornell</span> <span word="researcher">researcher</span> <span word="Linda">Linda</span> <span word="Raynor">Raynor</span>. <span word="This">This</span> <span word="is">is</span> <span word="a">a</span> <span word="warning">warning</span> <span word="bell">bell</span>.</p>
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