单选题
Genetically modified (GM) foodstuffs are here to stay. That's not to say that food produced by conventional agriculture will disappear, (61) simply that foodbuying patterns will polarize. It may even be that GM food will become the food of (62) because consumers come to appreciate the health benefits of reduced pesticide use. 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 (63) with the world's (64) population growth to ten or eleven billion. It's not just a question of more mouths to feed either. (65) is often forgotten is that all these extra people will take up space,reducing the overall land (66) for agriculture. It may well be that in the long term it is the developing world (67) benefits most from GM foods. It's true that for the next ten years or so GM crops may be (68) expensive. But the lesson of personal computers is applicable here—once the technology has been developed for money spinning crops, (69) maize, soy beans and cotton,it will become (70) for all. This doesn't mean, unfortunately, that families will (71) , but severity and duration will be helped by an (72) ability to produce and distribute food. (73) we move into this new era of agriculture we're embarking on a journey the world has seen many number of times with experiments before. We have been refining species of wheat for several thousand years. Genetic engineers like me are not doing anything as (74) as making a cabbage into a cauliflower (75) has been done by plant breeders in the past. We're simply tapping into the whole gene pool, rather than concentrating on one species at a time.
【正确答案】
C
【答案解析】此处用了一个固定句型“not…but…”，意思是“不是……，而是……”。
【正确答案】
B
【答案解析】preference的意思是“偏爱，优先选择”。food of preference的意思是“优先选择的食物”。favorable的意思是“赞成的，有利的”，是形容词，作定语不能放在of的后面。
【正确答案】
C
【答案解析】keep pace with是固定搭配，意思是“跟上……的步伐，跟上……的发展速度”。
【正确答案】
C
【答案解析】predicted的意思是“预料的，预计的”。不能选expected，因为expected含有“期待的，盼望的”的意思，人们并不盼望到2050年，有ten or eleven billion那么多的人口。