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
60
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] (4)
选项
A、in
B、upon
C、by
D、with
答案
C
解析
空格后的“快速奔跑”是“保护它们自己”的方式,因此选择表“方式”的介词by“通过”。with表示“用(工具)”,后面一般接名词,而非动名词。
转载请注明原文地址:http://tihaiku.com/zcyy/3175331.html
相关试题推荐
Thedesegregationwasachievedthroughanumberofstruggles,________beenment
WhatistheargumentofRussiaasfarasthenaturalgassellingisconcerned?[
WhatistheargumentofRussiaasfarasthenaturalgassellingisconcerned?[
NaturalResources[audioFiles]2013q2/audio_ezfj_011_20133[/audioFiles]
Angeristhenaturalreactionweexperiencewhenwefeelthreatenedor______.A、d
He’snotour______son—weadoptedhimwhenhewasthree.A、primitiveB、naturalC
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
Thedifferencebetweenaliquidandagasisobvious(1)_____theconditions
随机试题
YouwillhearJackLester,founderofHindeInstrumentsCorporation,atelescope
WhatisNOTthepurposeofMr.Laurence’svisit?[br][originaltext]W.Welcome
[originaltext]Manycollegestudentshavegivenuptakingclassnotesbyhan
关于肺动脉闭锁合并室间隔缺损的血流动力学描述,下列错误的是A.通过动脉导管及体肺
下列哪种情况下下颌阻生第三磨牙可不予拔除:A.无对颌牙而下垂的牙 B.咬颊或摩
A.以肌肉收缩为主的锻炼 B.以肌肉收缩加骨折上下关节活动 C.除以上活动外
由火灾报警控制器、触发器件和火灾警报装置等组成的火灾探测报警系统,下列属于触发器
鉴别原发性醛固酮增多症与失钾性肾病的试验是A.高渗盐水试验 B.水利尿试验
电磁绝缘性能好、信号衰小、频带宽、传输速度快、传输距离大。主要用于要求传输距离较
某公司承担一机电改建工程,工程量主要为新建4台5000m3原油罐及部分管线,更换
最新回复
(
0
)