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

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

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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 unlimited. They believed the world and nature would【B1】______ reproduce all the resources they would need. For example, a【B2】______biologist writing in the mid-nineteenth century【B3】______that none of the great sea fisheries were to be【B4】______. Today, though, there is evidence that the resources of the sea are seriously endangered.
    【B5】______, environmentalists have focused their attention on the land and air. Recently, however, they are beginning to discover that the resources of the sea are in as much danger. The list of endangered【B6】______now included herring and crabs as well as the African elephant, Indian tiger, and the American eagle.
    【B7】______, the threats to fish are more【B8】______in some ways than the threats to animals and birds. This is because【B9】______. Hence, a decline in the fish supply could have extensive effects on hunger and population. Fishermen in the North Atlantic alone【B10】______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.【B11】______
【B7】
选项
答案Furthermore
解析 同40题，此处也要填修饰整个句子的副词。语义上，在前两句提到海洋物种和陆地物种一样受到威胁(in as much danger)的前提下，本句用more…than比较句说明海洋生物受到的威胁更为严重，也就是说，这是一种语义上的递进．因而可以大致推测，本空填“进一步说，况且”。
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大学英语四级

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