2. 外语
  3. The relationship between human and dog dates back to at least 8,000 years ago. Different types of dogs were developed for differ

The relationship between human and dog dates back to at least 8,000 years ago. Different types of dogs were developed for differ

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问题     The relationship between human and dog dates back to at least 8,000 years ago. Different types of dogs were developed for different【S1】______: the ancient people in west Asia, for example, trained greyhounds (灰狗) to chase wild asses; in medieval manuscripts, illustrations of hunting scenes show terriers (猎犬) pursuing rabbits.
    Recent research shows that dogs【S2】______another useful function: they keep us【S3】______. People who have any sort of pet are more likely to【S4】______heart attacks (blood pressure rises when we talk to one another whereas it drops when we pat a pet). Dog owners in particular show considerably improved self-esteem and a 50%【S5】______in minor health problems only ten months after acquiring their pet.
    In the UK, thousands of people visit the annual dog show, "Crufts", held in London. This show receives wide national and international media【S6】______. Fierce discussions rage when dog liberty is threatened. There is no dog license in the UK because it was【S7】______several years ago. A recent law, the Dangerous Dogs Act, requires owners of【S8】______vicious dogs, such as Pit Bull Terriers, to【S9】______their dogs with the authorities and muzzle (戴口罩) them when taking them outside. There was a great protest from the public when this law was【S10】______.
[A] abolished [F] endure [K] healthy
[B] reduction [G] coverage [L] challenges
[C] especially [H] introduced [M] abandoned
[D] register [I] tasks [N] survive
[E] sick [J] perform [O] respectively
【S3】
选项
答案K
解析 在“keep+宾语+补语”这一结构中，现在分词、过去分词、形容词、副词以及介词短语都可作补语，故无法判断本空所填词的词性，只有结合语境来判断。通过观察可知，Recent research…us 49．是本段的中心句，后面两句都是围绕它展开的。根据后面提到当我们拍宠物时血压会下降以及拥有宠物能提高自尊可推断出，宠物对我们的健康有益，故答案为[K]healthy“健康的”。
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大学英语四级

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