英语六级(CET6)阅读理解模拟练习题及答案(7)_大学英语阅读

英语六级(CET6)阅读理解模拟练习题及答案(7)

　　5. 由题干关键词brown bears和salmon定位至第六段第二句Salmon are a crucial resource for the bears because the survival and reproductive success of these large mammals depend on the amount of fat they can deposit in the late summer and fall. . . . 鲑鱼是棕熊的重要资源，因为这些巨大哺乳动物的生存和繁殖都依靠它们在夏秋时节积累的脂肪。因此选C）。

　　6. 由题干关键词protect the salmon. . . from being taken定位至第七段最后一句Carrying the carcass into the forest out of sight of other bears is a way to avoid confrontation. 根据前面一句，此处的对抗是指棕熊之间对鱼的争夺或其他生存斗争。因此答案为A） the forest.

　　7. 由题干关键词only eat the part定位至第八段第一句The second important behavior is that the bears often eat only the most nourishing part of the salmon. 棕熊的第二种重要行为是它们通常只食用鲑鱼最有营养的部分。因此答案为B）。

　　8. 由题干关键词feeding behavior和the nutrients from the ocean定位至倒数第四段最后一句The bears are truly ecosystem engineers: they deliver marine-derived nutrients to the river side system. 棕熊真不愧为生态系统的工程师：它们把来自海洋的养分运送到河边的生态系统中。由此可见，题干是对这句话的转述，因此答案应为river side system.

　　9. 由题干关键词other creatures can benefit定位至倒数第二段第一句A creature does not have to consume the salmon directly to benefit from the oceans gift. 生物并不一定要通过直接吃到鲑鱼才能享受到海洋的馈赠。从这句话中的does not have to consume the salmon directly可知，很多动物都直接或者间接地受益于棕熊的进食行为。当然，这也可由上文中的many different animals make use of the protein and fat in the abandoned fish得道印证。因此，空格的内容可以总结为directly and indirectly.