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   F) extends   K) refined
    B) adaptations  G) habitats    L) revolves
    C) brutal   H) humble   M) speculate
    D) deliberately  I) image   N) structure
    E) expressed   J) literally   O) thrive
【C10】
选项
答案M
解析 动词辨析题。空格位于lead sb．to do sth．的结构中，因此应填入动词原形。空格所在句前一句提到，不同种群的虎鲸必须学习不同的捕猎技巧，以便在追捕当地猎物时占据上风。空格所在句的意思是：这继而对它们的饮食习惯产生重大影响，这使科学家________，学习某一种群特有的捕猎方法的能力也许正在驱动着虎鲸的基因发展。文中并未说明“学习某一种群特有的捕猎方法的能力也许正在驱动着虎鲸的基因发展”这一论断是否得到证实，因此空格处应填入含有“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”。另外三个备选的动词原形H)humble“使谦恭；(轻易)击败(强敌)”、N)structure“组织，安排”和O)thrive“茁壮成长。兴旺”均不符合句意，因此排除。
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大学英语四级

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