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考研英语完型填空全真模拟题(六)
Passage 6 Our ape-men forefathers had 1 obvious natural weapons in the struggle for survival in the open. They had neither the powerful teeth nor the strong claws of the big cats. They could not 2 with the bear, whose strength, speed and claws 3 an impressive "small-fire" weaponry. They could not even defend themselves 4 running swiftly like the horses, zebras or small animals. If the apemen had attempted to compete on those terms in the open, they would have been 5 to failure and extinction. But they were 6 with enormous concealed advantages of a kind not possessed by any of their competitors.
In the search 7 the pickings of the forest, the ape-men had 8 efficient stereosoopic 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 9 the reach of the original inhabitants of the grassland. Good long-distance sight was 10 another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the higher the viewpoint, the 11 the range of sight--so 12 they had had to do was climb a tree. Out in the open, how ever, this simple
solution was not 13 .
Climbing a hill would have helped, 14 in many places the ground was flat. The ape-men 15 the only possible solution. They reared up as high as possible on their hind limbs and began to walk 16 .
This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became slower 17 .
18 , they persevered and their bone structure gradually be came 19 to the new, unstable position that 20 them the name Homo erectus, upright man.
1. [A] no [B] some
[C] few [D] many
2. [A] match [B] compare
[C] rival [D] equal
3. [A] became [B] equipped
[C] posed [D] provided
4. [A] in [B] upon
[C] by [D] with
5. [A] driven [B] doomed
[C] forced [D] led
6. [A] bestowed [B] given
[C] presented [D] endowed
7. [A] for [B] of
[C] on [D] at
8. [A] progressed [B] generated
[C] developed [D] advanced
9. [A] from [B] apart
[C] beyond [D] above
10. [A] rather [B] quite
[C] much [D] really
11. [A] greater [B] smaller
[C] farther [D] nearer
12. [A] anything [B] that
[C] everything [D] all
13. [A] available [B] enough
[C] sufficient [D] convenient
14. [A] when [B] but
[C] so [D] and
15. [A] chose [B] adopted
[C] accepted [D] took
16. [A] fast [B] upright
[C] steadily [D] awkwardly
17. [A] as well [B] further
[C] still [D] even
18. [A] however [B] Therefore
[C] Meanwhile [D] Subsequently
19. [A] accustomed [B] familiarized
[C] adapted [D] suited
20. [A] obtained [B] called |