2. 外语
  3. Just because they can’t sing opera or ride a bicycle doesn’t mean that animals don’t have culture. There’s no better example of

Just because they can’t sing opera or ride a bicycle doesn’t mean that animals don’t have culture. There’s no better example of

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问题    Just because they can’t sing opera or ride a bicycle doesn’t mean that animals don’t have culture. There’s no better example of this than killer whales. As one of the most【C1】______predators (食肉动物), killer whales may not fit the【C2】______of a cultured creature. However, these beasts of the sea do display a vast range of highly【C3】______behaviors that appear to be driving their genetic development.
   The word " culture" comes from the Latin " colere," which【C4】______means " to cultivate. " In other words, it refers to anything that is【C5】______or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic【C6】______that help them digest and utilize this fat-rich diet, thereby allowing them to【C7】______in their cold climate.
   Like humans, killer whales have colonized a range of different【C8】______across the globe, occupying every ocean basin on the planet with an empire that【C9】______from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey (猎物). This, in turn, has a major effect on their diet, leading scientists to【C10】______that the ability to learn population-specific hunting methods could be driving the animals’genetic development.
   A) acquired I) image
   B) adaptations J) literally
   C) brutal K) refined
   D) deliberately L) revolves
   E) expressed M) speculate
   F) extends N) structure
   G) habitats O) thrive
   F) extends N) structure
   H) humble
【C3】
选项
答案K
解析 形容词辨析题。空格前面是副词highly，后面是名词behaviors，因此本空应填人形容词作定语。空格所在句意思是“但是，这些海中猛兽确实展现出许多高度______行为，这些行为似乎驱动着它们的基因发展。”前一句提到，虎鲸也许不符合有文化的生物的形象。本句与前一句构成转折关系，说明虎鲸的行为可以体现出它们是有文化的，因此本空填人的形容词应该是褒义的，而且与有文化相关。备选形容词中H)humble和K)refined符合要求，但是H)humble“谦虚的，谦卑的”不符合句意，因此本题答案为K)refined“精妙的，完善的”。备选形容词中的A)acquired和C)brutal均不符合句意，因此排除。
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大学英语四级

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