2. 外语
  3. A. quite B. mountainous C. disadvantages D. by E. deserved F. compare G. range

A. quite B. mountainous C. disadvantages D. by E. deserved F. compare G. range

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问题     A. quite        B. mountainous        C. disadvantages        D. by          E. deserved
    F. compare      G. range              H. with                 I. developed   J. flat
    K.equal         L. earned             M. failure              N. generated   O. for
    Our ape-men forefathers had no obvious natural weapons in the struggle【C1】________ survival in the open. They had neither the powerful teeth nor the strong claws of the big cats. They could not【C2】________ with the bear, whose strength, speed and claws provided an impressive "small-fire" weaponry. They could not even defend themselves【C3】________ running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been doomed to【C4】________ and extinction. But they were endowed with enormous concealed advantages of a kind not possessed by any of their competitors.
    In the search for the pickings of the forest, the ape-men had【C5】________efficient stereoscopic vision and a sense of colour that the animals of the grasslands did not possess. The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far beyond the reach of the original inhabitants of the grassland. Good long-distance sight was【C6】________ another matter.
    Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the higher the viewpoint, the greater the【C7】________ of sight—so what they had had to do was climb a tree. Out in the open, however, this simple solution was not available. Climbing a hill would have helped, but in many places the ground was【C8】________. The ape-men adopted the only possible solution. They reared up as high as possible on their hind limbs and began to walk upright.
    This vital change of physical position brought about considerable【C9】________ It was extremely unstable and it meant that the already slow ape-men became slower still. However, they persevered and their bone structure gradually became adapted to the new, unstable position that【C10】________ them the name Homo Erectus, upright man.
【C4】
选项
答案M
解析 空格跟名词extinction“灭绝”并列，因此空格处应填入名词，上文提到“他们不能像马、斑马或其他小动物一样通过快速奔跑来保护自己”，由此可见，如果猿人试图在野外与其他动物在这些方面一争高低，一定会“失败”。词库中的名词failure“失败”符合语境，故选M。
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