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Our ape-men forefathers had no obvious natural weapons in the struggle for【C1】______in the open. They had neither the powerful t
Our ape-men forefathers had no obvious natural weapons in the struggle for【C1】______in the open. They had neither the powerful t
admin
2015-08-29
44
问题
Our ape-men forefathers had no obvious natural weapons in the struggle for【C1】______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【C3】______an impressive "small-fire" weaponry. They could not even defend themselves【C4】______running swiftly like the horses, zebras or small animals. If the ape-men had attempted to【C5】______on those terms in the open, they would have been【C6】______to failure and extinction. But they were【C7】______with enormous concealed advantages of a kind not possessed by any of their competitors.
In the【C8】______for the pickings of the forest, the ape-men had【C9】______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【C10】______the ape-men to study practical problems in a way that lay far【C11】______the reach of the original inhabitants of the grassland. Good long-distance sight was quite another matter.
【C12】______of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the higher the viewpoint, the greater the range of sight—so【C13】______they had had to do was climb a tree. Out in the open, however, this simple solution was not【C14】______. Climbing a hill would have helped,【C15】______in many places the ground was flat. The ape-men【C16】______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【C17】______. It was extremely unstable and it meant that the already slow ape-men became slower still.【C18】______, they persevered and their bone structure gradually became【C19】______to the new, unstable position that【C20】______them the name Homo Erectus, upright man.
【C2】
选项
A、cooperate
B、compare
C、rival
D、equal
答案
B
解析
上一句说猿人祖先没有大型猫科动物那样强有力的牙齿和坚硬的爪子,因此推断此处表示“他们没法与熊相比”,compare with“与……相比较”符合句意,故本题选B。
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0
考研英语一
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