2. 外语
  3. Meggers argued that agriculture depends on extracting nutrients from soils into edible crops, so premodern societies in Amazonia

Meggers argued that agriculture depends on extracting nutrients from soils into edible crops, so premodern societies in Amazonia

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问题 Meggers argued that agriculture depends on extracting nutrients from soils into edible crops, so premodern societies in Amazonia could never grow large because underlying soils are impoverished. In Meggers’ view the population size that a culture could reach depended upon the agricultural potential of its environment. Meggers accepted that fish and turtle resources of the Amazon made possible the long riverside villages the explorer Orellana described in 1542, but she dismissed as exaggerated Carvajal’s estimates of tens of thousands of people in those settlements, and she was sure those settlements did not have inland counterparts. Supporting this point, the Omagua, a riverbank people and one of the greatest chiefdoms observed by Carvajal as a member of Orellana’s expedition, regarded hinterland forests as unpopulated wilderness.
In the context of the passage the highlighted sentence serves to
选项 A、explain the broader rationale for a conclusion described in the preceding sentence
B、suggest some of the drawbacks of the riverbank location of the villages described in the following sentence
C、acknowledge information that appears to undermine a description attributed to Orellana
D、introduce a principle that appears to be contradicted by the agricultural development of premodern Amazonia
E、give a reason for an upward revision in earlier estimates for premodern Amazonia
答案A
解析 句子作用题。第二句的功能应该是总结其3s版本，也就是一个文明达到的人口上限取决于农业潜力。这句话应该是对第一句话中“因为土壤贫瘠，亚马孙的前现代社会不会壮大”这个结论的一个解释，而且是一个更具有推广性的解释，因为从第一句的societies in Amazonia到第二句的a culture，确实更为broader，答案选A。
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