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新托福阅读句子简化题练习:农业文化社会

2017-11-13 12:08:51来源:网络

  最新20171112托福阅读考试中有一道句子简化阅读题,新东方在线托福网为大家带来新托福阅读句子简化题:农业文化社会一文,更多精彩尽请关注新东方在线托福网(http://toefl.koolearn.com)!

  考句:

  While most cultures are forced to farm the same soils year after year, Amazonian cultures, because of the Amazon’s flooding, were supplied with new fertile soil to the intensively farmed riverbanks with no effort on the farmers’ part—as waters rose, silt from the Andes mountains deposited itself on the broad floodplain, and as the floods receded, the virgin sediment was planted with seed.

  选项:

  Most cultures farm the same soils year after year because they do not want to farm on riverbanks that are frequently flooded.

  Intensive farming on riverbanks occurred with no effort on the part of farmers except during years with substantial flooding.

  Instead of planting the broad floodplains, Amazonian farmers planted different soils every year in areas where the waters could not rise and wash the sediment away.

  As the Amazon flooded each year, new fertile soil was deposited on the intensively farmed riverbanks and then planted as the floods receded.

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