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  3. A subject which seems to have been insufficiently studied by doctors and psychologist is the influence of geography and climate

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

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问题     A subject which seems to have been insufficiently studied by doctors and psychologist 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(稳定的). 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.
How does the author evaluate the generalizations of people’s types in Para. 3?
选项 A、Such generalizations help us judge the different characters of people we meet.
B、Such generalizations are not inclusive enough to draw a convincing conclusion.
C、Such generalizations prove that nature plays an important role in determining social habits.
D、Such generalizations show that there are mainly two different types of people on the planet.
答案B
解析 紧接第2段论证环境和健康的关系之后，第3段看似论述环境和个性的关系，举了两种比较典型的环境和性格特征的例子，但是，第4段第1句就把前面的表面现象给否定了，所以此题答案为B。
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