首页
登录
职称英语
Our ape-men forefathers had no obvious natural weapons in the struggle(1)___
Our ape-men forefathers had no obvious natural weapons in the struggle(1)___
游客
2023-11-10
12
管理
问题
Our ape-men forefathers had no obvious natural weapons in the struggle(1)_____ 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 ape-men had attempted to compete on those terms(5)_____, they would have been(6)_____ to failure and extinction. But they were(7)_____ with enormous concealed advantages of a kind not possessed by any of their competitors.
In the search(8)_____ the pickings of the forest, the ape-men had(9)_____ 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(10)_____ that lay far (11)_____ the reach of the original inhabitants of the grassland. Good long-distance sight was(12)_____ 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 range of sight—so(13)_____ they had had to do was climb a tree. Out in the open, however, this simple solution was not(14)_____. Climbing a hill would have helped, but in many places the ground was(15)______. The ape-men(16)_____ 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(17)_____. It was extremely unstable and it meant that the already slow ape-men became slower still.(18)_____, they persevered and their bone structure gradually became(19)_____ to the new, unstable position that(20)_____ them the name Homo Erectus, upright man. [br] (14)
选项
A、available
B、enough
C、sufficient
D、convenient
答案
A
解析
this simple solution指上文提到的爬树,在空旷的野外.爬树这种解决方式显然是没法采用的,available“可利用的”正确。enough“足够的”;sufficient“充足的”;convenient“方便的”。
转载请注明原文地址:https://tihaiku.com/zcyy/3175341.html
相关试题推荐
Thedesegregationwasachievedthroughanumberofstruggles,________beenment
WhatistheargumentofRussiaasfarasthenaturalgassellingisconcerned?[
Angeristhenaturalreactionweexperiencewhenwefeelthreatenedor______.A、d
He’snotour______son—weadoptedhimwhenhewasthree.A、primitiveB、naturalC
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
随机试题
WhyistheSouthPolecoldthantheNorthPole?【M1】__
______coffeeisveryconvenient.Allyouhavetodoisaddinghotwaterintoit
抽搐伴高血压,肢体瘫痪,见于A.癔症 B.破伤风 C.脑血
Whenthestudentspracticereadingsenten
对于多次发函后仍无法收到回函的应收账款,为验证其真实性,审计人员可采取的替代审计
2015年一般公共预算收入高于表中七个省(市)平均值的有:A.上海、安
根据我国法律的有关规定,下列情形中不能减轻或免除法律责任的是()。A.家住偏僻山
证券公司经营证券承销与保荐、证券自营、证券资产管理、其他证券业务中两项及两项以上
在变电所的设计中,通常需根据不同的情况设置贮油池或挡油设施,下列关于贮油池或挡
按照《建筑法》和《建筑工程质量管理条例》的规定,未取得资质证书承揽工程承担的法律
最新回复
(
0
)