2009年6月英语六级考试快速阅读的实战练习2
<p> <span word="The">The</span> <span word="world">world</span> <span word="was">was</span> <span word="stunned">stunned</span> <span word="by">by</span> <span word="the">the</span> <span word="news">news</span> <span word="in">in</span> <span word="the">the</span> <span word="summer">summer</span> <span word="of">of</span> 1995, <span word="when">when</span> <span word="a">a</span> <span word="British">British</span> <span word="embryologist">embryologist</span> <span word="named">named</span> <span word="Ian">Ian</span> <span word="Wilmut">Wilmut</span>, <span word="and">and</span> <span word="his">his</span> <span word="research">research</span> <span word="team">team</span>, <span word="successfully">successfully</span> <span word="cloned">cloned</span> <span word="Dolly">Dolly</span> <span word="the">the</span> <span word="sheep">sheep</span> <span word="using">using</span> <span word="the">the</span> <span word="technique">technique</span> <span word="of">of</span> <span word="nuclear">nuclear</span> <span word="transfer">transfer</span>. <span word="Replacing">Replacing</span> <span word="the">the</span> <span word="DNA">DNA</span> <span word="of">of</span> <span word="one">one</span> <span word="sheeps">sheeps</span> <span word="egg">egg</span> <span word="with">with</span> <span word="the">the</span> <span word="DNA">DNA</span> <span word="of">of</span> <span word="another">another</span> <span word="sheeps">sheeps</span> <span word="the">the</span> <span word="team">team</span> <span word="created">created</span> <span word="Dolly">Dolly</span>. <span word="Plants">Plants</span> <span word="and">and</span> <span word="lower">lower</span> <span word="forms">forms</span> <span word="of">of</span> <span word="animal">animal</span> <span word="life">life</span> <span word="have">have</span> <span word="been">been</span> <span word="successfully">successfully</span> <span word="cloned">cloned</span> <span word="for">for</span> <span word="many">many</span> <span word="years">years</span>, <span word="but">but</span> <span word="before">before</span> <span word="Wilmuts">Wilmuts</span> <span word="announcement">announcement</span>, <span word="it">it</span> <span word="had">had</span> <span word="been">been</span> <span word="thought">thought</span> <span word="by">by</span> <span word="many">many</span> <span word="to">to</span> <span word="be">be</span> <span word="unlikely">unlikely</span> <span word="that">that</span> <span word="such">such</span> <span word="a">a</span> <span word="procedure">procedure</span> <span word="could">could</span> <span word="be">be</span> <span word="performed">performed</span> <span word="on">on</span> <span word="larger">larger</span> <span word="mammals">mammals</span> <span word="and">and</span> <span word="life">life</span> <span word="forms">forms</span>. <span word="The">The</span> <span word="world">world</span> <span word="media">media</span> <span word="was">was</span> <span word="immediately">immediately</span> <span word="filled">filled</span> <span word="with">with</span> <span word="heated">heated</span> <span word="discussions">discussions</span> <span word="about">about</span> <span word="the">the</span> <span word="ethical">ethical</span> <span word="implications">implications</span> <span word="of">of</span> <span word="cloning">cloning</span>.</p><p> <span word="Some">Some</span> <span word="of">of</span> <span word="the">the</span> <span word="most">most</span> <span word="powerful">powerful</span> <span word="people">people</span> <span word="in">in</span> <span word="the">the</span> <span word="world">world</span> <span word="have">have</span> <span word="felt">felt</span> <span word="compelled">compelled</span> <span word="to">to</span> <span word="act">act</span> <span word="against">against</span> <span word="this">this</span> <span word="threat">threat</span>. <span word="President">President</span> <span word="Clinton">Clinton</span> <span word="swiftly">swiftly</span> <span word="imposed">imposed</span> <span word="a">a</span> <span word="ban">ban</span> <span word="on">on</span> <span word="federal">federal</span> <span word="funding">funding</span> <span word="for">for</span> <span word="human">human</span>-<span word="cloning">cloning</span> <span word="research">research</span>. <span word="Bills">Bills</span> <span word="were">were</span> <span word="put">put</span> <span word="in">in</span> <span word="the">the</span> <span word="works">works</span> <span word="in">in</span> <span word="both">both</span> <span word="houses">houses</span> <span word="of">of</span> <span word="Congress">Congress</span> <span word="to">to</span> <span word="outlaw">outlaw</span> <span word="human">human</span> <span word="cloning">cloning</span> <span word="because">because</span> <span word="it">it</span> <span word="was">was</span> <span word="deemed">deemed</span> <span word="as">as</span> <span word="a">a</span> <span word="fundamentally">fundamentally</span> <span word="evil">evil</span> <span word="thing">thing</span> <span word="that">that</span> <span word="must">must</span> <span word="be">be</span> <span word="stopped">stopped</span>. <span word="But">But</span> <span word="what">what</span>, <span word="exactly">exactly</span>, <span word="is">is</span> <span word="bad">bad</span> <span word="about">about</span> <span word="it">it</span>? <span word="From">From</span> <span word="an">an</span> <span word="ethical">ethical</span> <span word="point">point</span> <span word="of">of</span> <span word="view">view</span>, <span word="it">it</span> <span word="is">is</span> <span word="difficult">difficult</span> <span word="to">to</span> <span word="see">see</span> <span word="exactly">exactly</span> <span word="what">what</span> <span word="is">is</span> <span word="wrong">wrong</span> <span word="with">with</span> <span word="cloning">cloning</span> <span word="human">human</span> <span word="beings">beings</span>. <span word="The">The</span> <span word="people">people</span> <span word="who">who</span> <span word="are">are</span> <span word="afraid">afraid</span> <span word="of">of</span> <span word="cloning">cloning</span> <span word="tend">tend</span> <span word="to">to</span> <span word="assume">assume</span> <span word="that">that</span> <span word="someone">someone</span> <span word="would">would</span>, <span word="for">for</span> <span word="example">example</span>, <span word="break">break</span> <span word="into">into</span> <span word="Napoleons">Napoleons</span> <span word="Tomb">Tomb</span>, <span word="steal">steal</span> <span word="some">some</span> <span word="DNA">DNA</span> <span word="and">and</span> <span word="make">make</span> <span word="a">a</span> <span word="bunch">bunch</span> <span word="of">of</span> <span word="emperors">emperors</span>. <span word="In">In</span> <span word="reality">reality</span>, <span word="infertile">infertile</span> <span word="people">people</span> <span word="who">who</span> <span word="use">use</span> <span word="donated">donated</span> <span word="sperm">sperm</span>, <span word="eggs">eggs</span>, <span word="or">or</span> <span word="embryos">embryos</span> <span word="would">would</span> <span word="probably">probably</span> <span word="use">use</span> <span word="cloning">cloning</span>. <span word="Do">Do</span> <span word="the">the</span> <span word="potential">potential</span> <span word="harms">harms</span> <span word="outweigh">outweigh</span> <span word="the">the</span> <span word="benefits">benefits</span> <span word="of">of</span> <span word="cloning">cloning</span>? <span word="From">From</span> <span word="what">what</span> <span word="we">we</span> <span word="know">know</span> <span word="now">now</span>, <span word="they">they</span> <span word="dont">dont</span>. <span word="Therefore">Therefore</span>, <span word="we">we</span> <span word="should">should</span> <span word="not">not</span> <span word="rush">rush</span> <span word="placing">placing</span> <span word="a">a</span> <span word="ban">ban</span> <span word="on">on</span> <span word="a">a</span> <span word="potentially">potentially</span> <span word="useful">useful</span> <span word="method">method</span> <span word="of">of</span> <span word="helping">helping</span> <span word="infertile">infertile</span>, <span word="genetically">genetically</span> <span word="at">at</span>-<span word="risk">risk</span>, <span word="homosexual">homosexual</span>, <span word="or">or</span> <span word="single">single</span> <span word="people">people</span> <span word="to">to</span> <span word="become">become</span> <span word="parents">parents</span>.</p>
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