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  3. The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill Many

The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill Many

admin2010-07-06  66
问题      The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill Many innovations that were once heavily supported and publicized have since fallen by the wayside. The proposals themselves were technically feasible, but they proved to be economically unenviable and to yield food products culturally unacceptable to their consumers.
     One characteristic common to unsuccessful food innovations has been that, even with extensive government support, they often have not been technologically adapted or culturally acceptable to the people for whom they had been developed. A successful new technology, therefore, must fit the entire sociocultural system in which it is to find a place Security of crop yield, practicality of storage, and costs are much more significant than what had previously been realized by the advocates of new technologies.
     The adoption of new food technologies depends on more than these technical and cultural considerations; economic factors and governmental policies also strongly influence the ultimate success of any innovation. Economists in the Anglo-American tradition have taken the lead in investigating the economics of technological innovation. Although they exaggerate in claiming that profitability is the key factor guiding technical change -- they completely disregard the substantial effects of culture—they are correct in stressing the importance of profits. Most technological innovations in agriculture can be fully used only by large landowners and are only adopted if these profit-oriented business people believe that the innovation will increase their incomes, Thus innovations that carry high rewards for big agribusiness groups will be adopted even if they harm segments of the population and reduce the availability of food in a country. Further, should s new technology promise to alter substantially the profits and losses associated with any production system, those with economic power will strive to maintain and improve their own positions. Therefore, although technical advances in food production and processing will perhaps be needed to ensure food availability, meeting food needs will depend much more on equalizing economic power among the various segments of the populations within the developing countries themselves.  
We learn from the third paragraph that ______.
选项 A、economists in the Anglo-American tradition hold the opinion that profitability is the key factor guiding technical change
B、the theory of the economists in the Anglo-American tradition is substantially wrong
C、innovations that carry high rewards for big agribusiness groups will harm segments of the population and reduce the availability of food in a country
D、most technological innovations in agriculture can be fully used by large landowners if the innovation will increase their incomes
答案A
解析 细节题。A 对应于第三段第三句并且与这一句的意思一致，是正确答案。B 与这一句中的 correct(正确的)不符C 与该段第五句中的even if 所表达的假设不符；D 与该段第四句的意思不符。
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