2. 外语
  3. During the nineteenth century, when little was known about environmentalism and conservation it was common to hear people in Eur

During the nineteenth century, when little was known about environmentalism and conservation it was common to hear people in Eur

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问题     During the nineteenth century, when little was known
about environmentalism and conservation it was common to
hear people in Europe and America say that the resources of
the sea were limited. They believed the world and nature would      S1.______
continuously reproduce all the resources they would need. For
example, a noted biologist wrote in the mid nineteenth century      S2.______
commented that none of the great sea fisheries were to be ex-
hausting. Today, though, there is evidence that the resources       S3.______
of the sea are seriously endangered.
    Previously, environmentalists have focused their at-
tention to the land and air, Recently, however, they are            S4.______
beginning to discover that the resources of the sea are in so       S5.______
much danger. The list of dangerous species now includes             S6.______
herring and crabs as well as the African elephant, Indian
tiger, and the American eagle.
    Furthermore, the threats to fish are alarming in some           S7.______
ways than the threats to animals and birds. This is because
fish are a much more needed food source, and people through-
out the world depend on it as an important part of their diet.      S8.______
Hence, a decline in the fish supply could have extensively          S9.______
effects on hunger and population. Fishermen in file North
Atlantic alone annually harvest 20 billion pounds of fish to
satisfy food demand, but the world needs to recognize that
these practices cannot continue without depleting fish reserves
within the next few years Rapidly declining sea resources in
many parts of the world are problems that cannot be ignored
any longer. Like the scholars in the nineteenth century; we now     S10.______
know that food supplies in the sea cannot last forever.
选项
答案limited→unlimited
解析 逻辑关系错误。本行从语法、时态上分析都没有错误，文章第1句提到，19世纪的人们对环境保护知之甚少，在欧洲和美国经常可以听到人们说海洋资源是有限的。句中的limited与little逻辑上存在矛盾，再联系下一句的解释“他们相信世界和自然将不断再生出他们所需的所有资源”，可知前文应该是说，这些人认为资源是unlimited"无限的”。
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大学英语六级

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