《大学英语》阅读理解每日一练

今日份阅读理解：

The dog has always been considered mans best friend. Always noted for beingparticularly faithful in watching over children, he also has his place by the fireside, in thecow pasture, on the sheep range, and beside the hunter or blind. He is easy to trainworks hard, and often performs astonishing feats. And in the frozen polar regions, he wasonce the principal motive power, before being largely replaced by the plane andhelicopter.

Because he howls or whines in the presence of impending death, the dog was oncethought to have supernatural powers and believed to be capable of seeing gods and ghostsinvisible to people. Actually, the basis for these beliefs lies in the dogs sensitivity topeople's feelings and his superior hearing ability and sense of smell, which enable him todetect signs hidden from human observation. His record of saving lives is outstanding, forhe often gives warning of fire and other dangers not noticed by his master.

The dogs major contribution, however, has been to medical research. Both his dietand his structure are comparable to those of the human being, and so he has been thesubject of countless demonstrations and experiments. Open-heart surgery has been madepossible largely because of the dog. But his sacrifice has repaid his own species as well bysafeguarding it from rabies(狂犬病)， distemper， and other diseases.

1. The dog has always been noted for______.

A. protecting childrenB. assisting shepherds

C. helping hunters D. herding a cattle

2. The dog is useful to herders because he is______.

A. loyal B. easily trained

C. hard working D. all of the above

3. The dog probably whines in the presence of death because he can______.

A. see ghosts and spirits B. give warning of danger

C. sense unhappiness around him D. perform astonishing feats

4.The dog has been of most value to people in the development of______.

A. a treatment of rabiesB. open-heart surgery

C. a cure for distemper D. all of the above

5. The article does not say whether the scientists experiments with dog have______.

A. benefited animals other than dogsB. served people

C. helped other dogs D. contributed to medical knowledge

今日份阅读理解解析：

1.A第一段第二句：狗最著名的是在看护小孩方面的忠心耿耿。可以得出A项是正确答案。

2.D第一段第二句讲到狗的忠诚，第三句讲到狗易于驯服、努力工作而且经常是功绩卓著。因此可以得出D项是正确答案。

3.C第二段第一句讲到狗在逼近的死亡前号叫哀号，第二句指出这是因为狗对人类的感情非常敏感，而且超人的听觉和嗅觉也使它能够察觉人类观察发现不了的(危险)信号。因此可以得出C项是正确答案“感知它周围的不幸”。

4.B最后一段第一句指出狗的主要贡献在医疗研究方面。第三句讲到心脏手术的成功很大程度上是因为狗(的贡献)。因此可以得出B项是正确答案。

5.A文章最后一句：在防治狂犬病、犬热病和其他疾病方面，狗的牺牲对自己的种群也有贡献。再结合前两段讲的服务人类，可以得出A项是正确答案。

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