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  3. Crows are probably the most frequently met and easily identifiable members o

Crows are probably the most frequently met and easily identifiable members o

游客2024-05-06  18
问题     Crows are probably the most frequently met and easily identifiable members of the native fauna of the United States. The great number of tales, legends, and myths about these birds indicates that people have been exceptionally interested in them for a long time. On the other hand, when it comes to substantive — particularly behavioral — information, crows are less well known than many comparably common species and, for that matter, not a few quite uncommon ones: the endangered California condor, to cite one obvious example. There are practical reasons for this.
    Crows are notoriously poor and aggravating subjects for field research. Keen observers and quick learners, they are astute about the intentions of other creatures, including researchers, and adept at avoiding them. Because they are so numerous, active, and monochromatic, it is difficult to distinguish one crow from another. Bands, radio transmitters, or other identifying devices can be attached to them, but this of course requires catching live crows, which are among the wariest and most untrappable of birds.
    Technical difficulties aside, crow research is daunting because the ways of these birds are so complex and various. As preeminent generalists, members of this species ingeniously exploit a great range of habitats and resources, and they’ can quickly adjust to changes in their circumstances. Being so educable, individual birds have markedly different interests and inclinations, strategies and seams. For example, one pet crow learned how to let a dog out of its kennel by pulling the pin on the door. When the dog escaped, the bird went into the kennel and ate its food. [br] According to the first paragraph, what evidence is there that crows have interested people for a long time?
选项 A、The large number of stories about crows.
B、The frequency with which crows are sighted.
C、The amount of research that has been conducted on crows.
D、The ease with which crows are identified.
答案 A
解析 细定位节题。 文中第1段第2句话是：The great number of tales, legends, and myths about these birds indicates that people have been exceptionally interested in them for a long time. 意思是，大量关于鸟类的寓言，神话和传说故事表明，人们对乌鸦超乎寻常地兴趣浓厚，其由来已久。该句后半句说明时间已经很长，而有什么理由说很长呢，证据就在前半句去找，因为神话故事、寓言，传说中都有关于乌鸦大量的记载，根据常识，能在这类故事中大量记载的东西必然是历史悠久，所以，A项：有关乌鸦大量的故事传说正确。B项：经常能见到乌鸦：C项：已经进行的关于乌鸦的研究工作；D项：乌鸦很容易识别。
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