A subject that seems to have been insufficiently studied by doctors and psychologists is the influence of geography and climate

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问题     A subject that seems to have been insufficiently studied by doctors and psychologists is the influence of geography and climate on the psychological and physical health of humankind. There seems no doubt that the general character of landscape, the relative length of day and night, and climate must all play a part in determining what kind of people we are.
    It is true that a few studies have been made. Where all the inhabitants of a particular area enjoy exceptionally good or bad health, scientists have identified contributory factors such as the presence or absence of substances like iodine, fluoride, calcium, or iron in the water supply, or perhaps types of land that provide breeding places for pests like mosquitoes or rats.
    Moreover, we can all generalize about types of people we have met. Those living in countries with long dark winters are apt to be less talkative and less lively than inhabitants of countries where the climate is more equable. And where olives and oranges grow, the inhabitants are cheerful, talkative, and casual.
    But these commonplace generalizations are inadequate: the influence of climate and geography should be studied in depth. Do all mountain dwellers live to a ripe old age? Does the drinking of wine, rather than beer, result in a sunny and open character? Is the strength and height of a Kenyan tribe due to their habitual drinking of the cow blood?
    We are not yet sure of the answers to such questions, but let us hope that something beneficial to humankind may eventually result from such studies.
The author hopes that the studies mentioned in the passage will enable us to______.

选项 A、generalize better about types of people in the world
B、find better water supplies for inhabitants in some dry areas
C、gain insight into the influence of geographical environment on humankind
D、live to a ripe old age just like those mountain dwellers

答案C

解析 最后一段提到,虽然我们不能确定用什么办法来解决这些问题,但我们希望这些研究最终能带给人类益处。可据此推断,作者希望人们可以通过这些研究对地理环境对人的影响有个正确的认识。
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