2. 职称英语
  3. Man has become master of the Earth’s surface. He is constantly probing into

Man has become master of the Earth’s surface. He is constantly probing into

游客2025-03-20  47
问题     Man has become master of the Earth’s surface. He is constantly probing into the earth’s depths and into atmosphere’s upper reaches.【C1】______ it is doubtful whether man, with all of his intelligence and vigor, holds his planetary seat with greater【C2】______ than a vast tribe of small, many-legged animals that pass their lives at his feet—the spiders.
    Spiders are among the【C3】______ of science. They dwell at higher altitudes than any other【C4】______ of their size or larger. On the slopes of Mount Everest, at an altitude of twenty-two thousand feet—five thousand feet above the vegetation line—【C5】______ a species of black spider only a quarter of an inch long. This is an【C6】______ environment for creatures so delicately constructed. To protect themselves from the chill of night, they take shelter in crevices where the twenty-four-hour【C7】______ in temperature is only twelve degrees, as against forty-four on the outside.
    Spiders live in other unlikely【C8】______ —rabbit burrows, flowers, anthills, and the desolate, drafty aeries of eagles. They have been found soaring through the air five miles【C9】______ the earth. One【C10】______ has been discovered in an African cavern more than two thousand feet underground. [br] 【C6】
选项 A、imaginary
B、incredible
C、ideal
D、poor
答案 B
解析 根据空格前的冠词an，可首先排除D项poor。其他三项中，A项imaginary意为"虚构的，想像的"，B项incredible意为"难以令人置信的"，C项ideal意为"理想的"。上句提到的蜘蛛生活在海拔22 000英尺的山坡上，这是事实，不是虚构，因此A项不正确，这样的地方对于如此小的动物来说确实是难以置信的，因此可推断正确答案为B。
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