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  3. Genetically-modified (GM) foodstuffs are here to stay. That’s not to say that food produced by conventional agriculture will dis

Genetically-modified (GM) foodstuffs are here to stay. That’s not to say that food produced by conventional agriculture will dis

admin2010-03-26  110
问题     Genetically-modified (GM) foodstuffs are here to stay. That’s not to say that food produced by conventional agriculture will disappear, but 【S1】______ that food-buying patterns will polarize: there will be a niche(合适的) market for conventional foodstuffs just as there is for 【S2】______ food. It may even be that GM food will become the food of 【S3】______ because consumers come to appreciate the health benefits of reduced pesticide use.
    【S4】______ there are some 20,000 chemicals in use, but the scientists only have detailed information on around 1,000 of them. To see the advantages of GM food you have only to consider the recent press revelation that the average lettuce (生菜) receives eleven pesticide 【S5】______ before it reaches the supermarket shelf. I’m sure chemicals and their role in disease will become a big 【S6】______ in the next century as the population of the developed world worries increasingly about its health.
    The reason GM food will not go away is that we need a three-fold increase in food production by the year 2050 to keep 【S7】______ with the world’s predicted population growth to ten or eleven billion. It’s not just a question of more mouths to feed either. What is often forgotten is that all these extra people will take up space, reducing the 【S8】______ land available for agriculture. The world has 800 million hungry people. Until now, food supplies have been increased by improved 【S9】______ , pesticides and artificial fertilizers: the green revolution. Now we’re on the 【S10】______ of a new revolution: a genetic one.

A) organic            B) edge              C) accumulations          D) Consequently
E) simply             F) issue             G) direction              H) Currently
I) applications       J) overall           K) disaster               L) pace
M) preference         N) varieties         O) track
【S9】
选项
答案N
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