the world has a fast growing population and people阅读理解答案

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1、Theworldhasafastgrowingpopulationandpeople阅读理解答案　　Theworldhasafastgrowingpopulationandpeopleneedmorelandforhouses,factories,highways,andsoon.Thefarmlandisdecreasingwitheachpassingday.Howtomeettheneedoffeedingthegrowingpopulation?Onewayistointroducesomehigh-outputg

2、eneintoacroptoenableittoproducemore.Biologistsovertheyearshavediscoveredgeneswhichcanraiseoutputofthecrops,resistpests,improvetaste,etc.　　However,inmanywesterncountriesthereiswidespreadconcernoverthesafetyof“GeneticallyModified”(GM)(转基因）foods，becausetheythinkthere

3、maybeseriousproblemsofenvironment,health,safety,moralityandsoon.　　AsascientistImustadmitGMfoodsinvolvegreatriskstohumans.InfactinEuropethey’recalled“Frankensteinfoods”bymany.Frankensteinisacharacterinanovel.Hewasaverycleverscientist.Hecreatedamonster(怪物），whicheven

4、tuallykilledhim.　　Soybeanscanbemadeintomanyfoods.However,it’shardtotracethem.Therefore,it　　　　’sveryimportantwehavetomakesurethesoybean,ifgeneticallymodified,isfreefromanypoisonousmatterharmfultohumanbeings.Forthisweneedverygoodtesting.Wedohavesometestingonsomeanim

5、als，butnocompletelysatisfactorytestinghaseverbeenmadesofar.They’reentirelynew,andtheirproblemsareentirelyunknown.Ittakestimetodeveloppersuasiveteststoknowwhetherthey’reharmfultousornot.　　WemaynotbeabletotellwhatmayhappenifwetakeGMfoods.Someofthemmayberesistanttoan

6、tibiotics(抗生素).ThenmanyofthemedicineswehavetodaywillhavenoeffectonpeopleeatingGMfoods.　　AmorelikelycaseistheGMfoodsmaycontaingenessomepeopleareallergicto.　　GMproductshavealreadycomeintoourlivesbutmostpeopleevenknownothingaboutit.Atleastwehavetobeclearaboutwhatwear

7、eeating.TheChinaConsumersAssociationiscallingforlabeling(标注）onGMfoodssothatconsumerswillknowbeforetheybuythem.　　50.The　　　　chiefpurposeofdevelopingGMfoodsisto_.　　A.makethefoodsmuchcheaperB.feedthefastgrowingpopulation　　C.makethefoodsmuchtastierD.killpestsonthecrops

8、　　51.Fromthepassagewecaninferthat___________.　　A.Frankensteinfoodscanmakepeopleclever　　B.manyEuropeansrejectGMfoodsC.GMfoodsareverypopularinEurope　　D.Fr