9.考试课文原文整理_哈工大研究生英语

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1、WillFrankenfoodFeedTheWorld?1.Ifyouwanttosparkaheateddebateatadinnerparty,bringupthetopicofgeneticallymodifiedfoods.Formanypeople,theconceptofgeneticallyaltered,high-techcropproductionraisesallkindsofenvironmental,health,safetyandethicalquestions.Particularlyincountrieswithlongagrariantradi

2、tions—andvocalgreenlobbies—theideaseemsagainstnature.2.Infact,geneticallymodifiedfoodsarealreadyverymuchapartofourlives.AthirdofthecornandmorethanhalfthesoybeansandcottongrownintheU.S.lastyearweretheproductofbiotechnology,accordingtotheDepartmentofAgriculture.Morethan65millionacresofgenetic

3、allymodifiedcropswillbeplantedintheU.S.thisyear.Thegeneticgenieisoutofthebottle.3.Yetthereareclearlysomeveryrealissuesthatneedtoberesolved.Likeanynewproductenteringthefoodchain,geneticallymodifiedfoodsmustbesubjectedtorigoroustesting.Inwealthycountries,thedebateaboutbiotechistemperedbythefa

4、ctthatwehavearicharrayoffoodstochoosefrom—andasupplythatfarexceedsourneeds.Indevelopingcountriesdesperatetofeedfast-growingandunderfedpopulations,theissueissimplerandmuchmoreurgent:Dothebenefitsofbiotechoutweightherisks?4.Thestatisticsonpopulationgrowthandhungeraredisturbing.Lastyeartheworl

5、d'spopulationreached6billion.Andby2050,theU.N.estimates,itwillprobablynear9billion.Almostallthatgrowthwilloccurindevelopingcountries.Atthesametime,theworld'savailablecultivablelandperpersonisdeclining.Arablelandhasdeclinedsteadilysince1960andwilldecreasebyhalfoverthenext50years,accordingtot

6、heInternationalServicefortheAcquisitionofAgri-BiotechApplications(ISAAA).5.TheU.N.estimatesthatnearly800millionpeoplearoundtheworldareundernourished.Theeffectsaredevastating.About400millionwomenofchildbearingageareirondeficient,whichmeanstheirbabiesareexposedtovariousbirthdefects.Asmanyas10

7、0millionchildrensufferfromvitaminAdeficiency,aleadingcauseofblindness.Tensofmillionsofpeoplesufferfromothermajorailmentsandnutritionaldeficienciescausedbylackoffood.6.Howcanbiotechhelp?Biotechnologistshavedevelopedgeneticallymodifiedricethatisfortifiedwi