新东方gre argument范文10篇(八)

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1、智课网GRE备考资料新东方GREargument范文10篇（八）Aspeoplegrowolder,ĠanenzymeknownasPEPincreasinglybreaksdowntheneuropeptidechemicalsinvolvedinlearningandmemory.Butnow,researchershavefoundcompoundsthatpreventPEPfrombreakingneuropeptidesapart.Intests,thesecompoundsalmostcompletelyrestoredlostmemoryinra

2、ts.Theuseofthesecompoundsshouldbeextendedtostudentswhohavepoormemoryanddifficultyinconcentrating-andthereforeseriousproblemsinschoolperformance.Sciencefinallyhasasolutionforproblemsneitherparentsnorteacherscouldsolve.Inthisargument,thearguerstatesthatresearchershavefoundcompoundsthat

3、keepanenzymeknownasPEPfrombreakingneuropeptidesapart,whichareknowntobeinvolvedinlearningandmemory.Thearguerstatesthattestshaveshownthatthesecompoundsalmostcompletelyrestoredlostmemoryinrats,andthattherefore,thesecompoundsshouldbeadministeredtostudentswithpoormemoryanddifficultyinconc

4、entrating.Thisargumentisunconvincingbecauseitcontainsseveralcriticalflawsinlogic.Firstofall,thearguerstatesthataspeoplegrowolder,PEPbreaksdowntheneuropeptidechemicalsthatareinvolvedinlearningandmemory.Itistruethatgenerally,aspeoplegetolder,theytendtohavemoreproblemswithlearningandmem

5、ory.However,thereisnodirectlinkmentionedbetweenthebreakingdownoftheneuropeptidechemicalsandthelossoflearningabilityormemory.Additionally,thearguermentionsneuropeptidechemicalsthatarebrokendownbyPEP.Whattheresearchershavefoundisacompoundthatpreventsneuropeptidesfrombreakingapart.These

6、aretwodifferentphysicalactions:thebreakingdownofneuropeptidechemicalsasopposedtothebreakingapartoftheneuropeptidesthemselves.Furthermore,itisnotstatedwhichofthesephysicalactionsisinvolvedwiththelossoflearningabilityandmemory.Itisnotexplicitlystatedthatthebreakingdownofchemicalscauses

7、alossinlearningabilityandmemory,onlythatthishappensaspeoplegrowolder.Itisalsonotexpresslystatedwhetherthebreakingapartoftheneuropeptidesthemselvescausesmemorylossoralessenedlearningability.Withoutshowingadirectlinkbetweentheeffectofkeepingtheneuropeptidesfrombreakingapartandareductio

8、ninthelossof