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
【C10】
选项
答案M
解析 动词辨析题。空格所在结构是lead sb．to do sth．，因此应填人动词原形。上一句提到，不同种群的虎鲸必须学习不同的捕猎技巧，以便获取不同的猎物。空格所在句意思是“反过来，这对它们的食物也有重大影响，这使科学家______，学习某一种群特有的捕猎技巧的能力也许驱动着虎鲸的基因发展。”文中并未说明that引导的从句内容已经得到证实，因此空格处应填人含有“猜测、猜想、推测”意义的动词原形，故本题答案为M)speculate“猜测，推测”。另外两个备选的动词原形N)structure和O)thrive均不符合句意，因此排除。
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大学英语四级

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