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ID:35415857
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页数:7页
时间:2019-03-24
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1、AsaresultofpeopleeatingGMFand,infact,thesoybeansgrowninmostpartsoftheworldweregeneticallymodifiedmorethan20yearsagoandappeartohavehadnonegativeeffectsonhealth・Anotherimportantpointisthis;ifaproductispotentiallydangerous,tobaccoproductsforexample,thebenefitsofremovingtheharmfulchemicalsbyg
2、eneticmodificationareobvious・GMcropsareoftenmaderesistanttodiseasecausedbybacteria,virusesandfungi,butthistreatmentoftenkillsbeneficialinsectssuchasbees,whichareessentialforthesuccessfulfertilizationofmanyplantspecies,AveryseriousdisadvantageofGMcropsisthattheyarcallverysimilargenetically
3、andthismeansthattheymayhavefewdefensesagainstnewformsofvirusesandfungi,Scientistshavealreadyshownhowquicklyaviruscanchangeitsformtoovercometheresistanceofitsvictim.DevelopedcountrieshavedifferentattitudestoGMF,EuropeansaremoredoubtfulthanAmericansaboutthebenefitsandsoEuropeancountrieshave
4、tougherregulationsonfoodproductionthantheUSA・InsomecountriesGMFisbannedwhileinothersitmustbeclearlylabeledsothatpeopleareawareofwhattheyarebuying.Largecompanies-一usuallyAmericanones™whichhavespentitgreatdealofmoneyontheresearchanddevelopmentofGMcropsareencouragingthefarmersindevelopingcou
5、ntriestogrowthenewcropsratherthattraditionalonesandindeedfarmersarcbecomingincreasinglydependentontheGMcompanies.IntheGMFdebate,itisimpossibletosaywhoisright,orindeedifeithersideisright.Whatisclear,however,isthatwerequirecarefulexperimentation,publicconsultationandstrictgovernmentregulati
6、onoftheprocessofGMfooddevelopment.31.GMcropsdonothavetobetreatedwithchemicalssuchasfertilizersorpesticidesandthiswillbenefitthenaturalenvironment.A32.Sincegeneticallymodifiedcropswillnotonlyfeedtheworld'spopulationbutwillalsohelptosavetheEarth'snaturalenvironment,theadvantagesofGMFoutweig
7、hthedisadvantages.C33.ExistingGMcrops(e.g・soybeans)appearnottohaveharmedthehealthofconsumers・B34.GMcropsaresimilargeneticallyandmayhaveastrongdefenseagainstnewformsofvirusesandfungi.B35.AllthedevelopedcountriesbelievethatGMfoodisbeneficialandtheyareencouragingthefar
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