Genetically ModifiedFood

Ever since they werefirst put on the market in the early 1990s,genetically modified(GM，转基因）foods have been increasinglydeveloped and marketed in many countries

in the world, mainlyon the basis of their promise to end the worldwide food crisis.______(46)Evenif it would,is it the best solution?

Despite what it promises,GMtechnology actually has not increased the production potential （潜力）of any crop.______(47)Forinstance,a report that analyses nearly two

decades of researchon major GM food shows that GM engineering has failed to significantly increaseUScrop production.

______(48)While GMseeds are expensive,GM companies tell farmers that they will make good profitsby saving money on pesticides（杀虫剂）.On the contrary, US

government data showthat GM crops in the UShave produced an overall increase in pesticide use compared to traditionalcrops."The promise was that you could use less

chemicals and boostproduction.But neither is true,"said Bill Christison,President of the USNational Family Farm Coalition.

At the same time,theauthors of the book World Hunger:Twelve Myths argue that there actually is morethan enough food in the world and that the hunger crisis is not caused

by production.______(49)These indeed deserve our efforts and money. Meanwhile,the rise infood prices results from the increased use of crops for fuel rather than food

shortage,accordingto a 2008 World Bank report.

______(50)AnotherWorld Bank report concluded that GM crops have little to offer to thechallenges of worldwide poverty and hunger,because better ways out are

available,amongwhich "green"farming is supposed to be the first choice._______（49）

A.Problems come fromfood distribution and politics.

B.But can GMtechnology solve world hunger problems?

C.In fact,studiesshow that the most widely grown GM crop has suffered reduced productivity.

D.As a matter offact,scientists see better ways to feed the world.

E.Somethingelse,however,has been on the rise.