研究生科技英语阅读答案1

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1、Unit1GeneticallyModifiedFoods—FeedtheWorld?I.ComprehensionandAppreciation1.Whatistheauthor’soverallpositiononthisissue?Ishefororagainstgeneticallymodifiedfoods?HeisonthesideofGMfoods,andhethinksthatfearsthatgeneticallymodified,pest-resistantcropsmightkillgoodinsectsaswellasbadap

2、pearunfounded.2.DoyouknowGMfoodsarealreadypartofourlives?WhatkindofGMfoodshaveyouhad?Howdoestheauthorsupportthefactthatthegeneticisoutofthebottle?Haveyougotanyclueofallusionandparodyusedintheexpression“thegeneticisoutofthebottle”?Theauthorusesthefactthatathirdofthecornandmoretha

3、nhalfthesoybeansandcottongrownintheUSlastyearweretheproductofbiotechnologyandmorethan65millionacresofgeneticallymodifiedcropswillbeplantedintheUSthisyeartoshowthegeneticisoutofthebottle.ItisfromeGenieinaBottle,thefirsthitsingleandsignaturesongfromChristinaAguilera’sdebutalbum.3.

4、TheentryofGMfoodsintothefoodchainraisesthedebateaboutbiotechinmanycountries,whatisthegeneralattitudeofwealthycountriestowardthisissue?Whataboutthedevelopingcountriesonthisissue?Inwealthycountries,thedebateaboutbiotechistemperedbythefactthatwehavearicharrayoffoodstochoosefrom--an

5、dasupplythatfarexceedsourneeds.Indevelopingcountriesdesperatetofeedfast-growingandunderfedpopulations;theissueissimplerandmuchmoreurgent:Dothebenefitsofbiotechoutweightherisks?4.Whataretheeffectsofthefactthatnearly800millionpeoplearoundtheworldareundernourished?Theeffectsaredeva

6、stating.About400millionwomenofchildbearingageareirondeficient,whichmeanstheirbabiesareexposedtovariousbirthdefects.Asmanyas100millionchildrensufferfromvitaminAdeficiency,aleadingcauseofblindness.Tensofmillionsofpeoplesufferfromothermajorailmentsandnutritionaldeficienciescausedby

7、lackoffood.5.HowcanbiotechhelptocurethechildrenwithvitaminAdeficiency?Biotechnologistshavedevelopedgeneticallymodifiedricethatisfortifiedwithbeta-carotene--whichthebodyconvertsintovitaminA--andadditionaliron.6.HowdoyouliketheGM,pest-resistantcrops?Howdoestheauthorsupporttheideat

8、hatfearsthatGM,pest-resistantcropsmightkillgood