雅思写作范文欣赏：动物实验(第三篇)
<p> <span word="Advantages">Advantages</span> <span word="of">of</span> <span word="Animal">Animal</span> <span word="Testing">Testing</span> <span word="in">in</span> <span word="Medical">Medical</span> <span word="Research">Research</span></p><p> <span word="Medical">Medical</span> <span word="research">research</span> <span word="involving">involving</span> <span word="animals">animals</span> <span word="has">has</span> <span word="dramatically">dramatically</span> <span word="improved">improved</span> <span word="the">the</span> <span word="health">health</span> <span word="of">of</span> <span word="the">the</span> <span word="human">human</span> <span word="race">race</span>. <span word="Without">Without</span> <span word="animal">animal</span> <span word="testing">testing</span>, <span word="the">the</span> <span word="cure">cure</span> <span word="for">for</span> <span word="polio">polio</span> <span word="would">would</span> <span word="not">not</span> <span word="exist">exist</span> <span word="and">and</span> <span word="diabetics">diabetics</span> <span word="would">would</span> <span word="suffer">suffer</span> <span word="or">or</span> <span word="die">die</span> <span word="from">from</span> <span word="their">their</span> <span word="disease">disease</span>. <span word="Despite">Despite</span> <span word="these">these</span> <span word="benefits">benefits</span>, <span word="some">some</span> <span word="people">people</span> <span word="believe">believe</span> <span word="that">that</span> <span word="animals">animals</span> <span word="should">should</span> <span word="be">be</span> <span word="not">not</span> <span word="be">be</span> <span word="used">used</span> <span word="for">for</span> <span word="testing">testing</span> <span word="medical">medical</span> <span word="techniques">techniques</span> <span word="and">and</span> <span word="drugs">drugs</span>. <span word="This">This</span> <span word="essay">essay</span> <span word="will">will</span> <span word="outline">outline</span> <span word="the">the</span> <span word="advantages">advantages</span> <span word="of">of</span> <span word="animal">animal</span> <span word="testing">testing</span>.</p><p> <span word="Animal">Animal</span> <span word="testing">testing</span> <span word="allows">allows</span> <span word="scientists">scientists</span> <span word="to">to</span> <span word="test">test</span> <span word="and">and</span> <span word="create">create</span> <span word="new">new</span> <span word="drugs">drugs</span>. <span word="Animals">Animals</span> <span word="such">such</span> <span word="as">as</span> <span word="monkeys">monkeys</span> <span word="or">or</span> <span word="rabbits">rabbits</span> <span word="have">have</span> <span word="similar">similar</span> <span word="physical">physical</span> <span word="processes">processes</span> <span word="to">to</span> <span word="humans">humans</span>. <span word="This">This</span> <span word="allows">allows</span> <span word="scientists">scientists</span> <span word="to">to</span> <span word="test">test</span> <span word="the">the</span> <span word="effects">effects</span> <span word="of">of</span> <span word="certain">certain</span> <span word="drugs">drugs</span>. <span word="If">If</span> <span word="a">a</span> <span word="drug">drug</span> <span word="produces">produces</span> <span word="adverse">adverse</span> <span word="effects">effects</span> <span word="in">in</span> <span word="animals">animals</span> <span word="it">it</span> <span word="is">is</span> <span word="probably">probably</span> <span word="unfit">unfit</span> <span word="for">for</span> <span word="human">human</span> <span word="use">use</span>.</p><p> <span word="Animal">Animal</span> <span word="testing">testing</span> <span word="is">is</span> <span word="cheap">cheap</span>. <span word="There">There</span> <span word="is">is</span> <span word="a">a</span> <span word="large">large</span> <span word="supply">supply</span> <span word="of">of</span> <span word="animals">animals</span> <span word="for">for</span> <span word="medical">medical</span> <span word="research">research</span>. <span word="Animals">Animals</span> <span word="are">are</span> <span word="easily">easily</span> <span word="bred">bred</span>, <span word="and">and</span> <span word="maintained">maintained</span> <span word="safely">safely</span> <span word="in">in</span> <span word="controlled">controlled</span> <span word="labs">labs</span>. <span word="The">The</span> <span word="costs">costs</span> <span word="of">of</span> <span word="testing">testing</span> <span word="in">in</span> <span word="humans">humans</span> <span word="would">would</span> <span word="be">be</span> <span word="extremely">extremely</span> <span word="high">high</span>.</p><p> <span word="Many">Many</span> <span word="people">people</span> <span word="argue">argue</span> <span word="that">that</span> <span word="animal">animal</span> <span word="testing">testing</span> <span word="is">is</span> <span word="cruel">cruel</span>. <span word="In">In</span> <span word="some">some</span> <span word="cases">cases</span> <span word="this">this</span> <span word="is">is</span> <span word="true">true</span>. <span word="However">However</span> <span word="it">it</span> <span word="would">would</span> <span word="be">be</span> <span word="much">much</span> <span word="more">more</span> <span word="cruel">cruel</span> <span word="to">to</span> <span word="test">test</span> <span word="new">new</span> <span word="drugs">drugs</span> <span word="on">on</span> <span word="people">people</span> <span word="or">or</span> <span word="children">children</span>, <span word="or">or</span> <span word="to">to</span> <span word="let">let</span> <span word="people">people</span> <span word="die">die</span> <span word="because">because</span> <span word="there">there</span> <span word="was">was</span> <span word="not">not</span> <span word="enough">enough</span> <span word="information">information</span> <span word="about">about</span> <span word="a">a</span> <span word="drug">drug</span>. <span word="Furthermore">Furthermore</span>, <span word="legislation">legislation</span> <span word="in">in</span> <span word="most">most</span> <span word="countries">countries</span> <span word="sets">sets</span> <span word="standards">standards</span> <span word="for">for</span> <span word="animal">animal</span> <span word="treatment">treatment</span>, <span word="and">and</span> <span word="laboratories">laboratories</span> <span word="have">have</span> <span word="guidelines">guidelines</span> <span word="to">to</span> <span word="prevent">prevent</span> <span word="cruelty">cruelty</span>.</p><p> <span word="Opponents">Opponents</span> <span word="of">of</span> <span word="animal">animal</span> <span word="research">research</span> <span word="also">also</span> <span word="say">say</span> <span word="that">that</span> <span word="information">information</span> <span word="from">from</span> <span word="animals">animals</span> <span word="does">does</span> <span word="not">not</span> <span word="apply">apply</span> <span word="to">to</span> <span word="humans">humans</span>. <span word="They">They</span> <span word="point">point</span> <span word="to">to</span> <span word="certain">certain</span> <span word="commercial">commercial</span> <span word="drugs">drugs</span> <span word="which">which</span> <span word="have">have</span> <span word="been">been</span> <span word="withdrawn">withdrawn</span> <span word="because">because</span> <span word="of">of</span> <span word="side">side</span>-<span word="effects">effects</span> <span word="in">in</span> <span word="humans">humans</span> <span word="While">While</span> <span word="it">it</span> <span word="is">is</span> <span word="true">true</span> <span word="that">that</span> <span word="animal">animal</span> <span word="systems">systems</span> <span word="differ">differ</span> <span word="from">from</span> <span word="human">human</span> <span word="systems">systems</span>, <span word="there">there</span> <span word="are">are</span> <span word="enough">enough</span> <span word="similarities">similarities</span> <span word="to">to</span> <span word="apply">apply</span> <span word="information">information</span> <span word="from">from</span> <span word="animals">animals</span> <span word="to">to</span> <span word="humans">humans</span>.</p>
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