首页
登录
职称英语
Our ape-men forefathers had no obvious natural weapons in the struggle for s
Our ape-men forefathers had no obvious natural weapons in the struggle for s
游客
2025-01-28
25
管理
问题
Our ape-men forefathers had no obvious natural weapons in the struggle for survival in the open. They had neither the【C1】________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 by running【C4】________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【C5】________to failure and extinction.
But they were【C6】________with enormous concealed advantages of a kind not possessed by any of their competitors. In the search【C7】________the pickings of the forest, the ape-men had【C8】________efficient stereoscopic vision and a sense of color that the animals of the grassland did not possess. The ability to see clearly at close【C9】________permitted the ape-men to study practical problems in a way that lay far【C10】________the reach of the original inhabitants of the grassland.
Good long-distance sight was【C11】________another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the higher the【C12】________the greater the range of sight, so all they had to do was climb a tree out in the open. However, this simple solution was not【C13】________Climbing a hill would have helped, but in many【C14】________the ground was flat. The ape-men【C15】________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【C16】________disadvantages. It was extremely【C17】________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 Homoerectus, upright man. [br] 【C13】
选项
A、available
B、enough
C、sufficient
D、convenient
答案
A
解析
available意为“可得到的,可用的”,enough意为“足够的”,surficient意为“充足的”,convenient意为“方便的”。结合句意“然而,在没有树的开阔地带,这种简单的方法是不________”可知,A最符合文意。
转载请注明原文地址:https://tihaiku.com/zcyy/3932760.html
相关试题推荐
Anotherpartoftheobserver’sjobistomakesurethatheavyweapons,youknow,
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Thefirstrecordeduseofnaturalgastolightstreetlampsitwasinthetowno
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
随机试题
Whichvowelisdifferentfromtheothersaccordingtothecharacteristicsofvow
Whenmanypeoplediscussschools"goodorbad",whataretheytalkingabout?[or
Becauseshegottiredof______allday.[originaltext]WhydidCindychangeher
Bufomarinustoads,fiercepredatorsthatwilleatfrogslizards,andevensmall
[originaltext]AlthoughHenryFord’snameiscloselyassociatedwiththecon
Everybodysleeps,butwhatpeoplestayuplatetocatch—orwakeupearlyin
胸部CT增强扫描不用于以下病变的诊断A.肺内结节性病变的区别 B.胸水性质的判
喘证的基本病机是A.肺气上逆,宣降失职 B.邪犯于肺,肺气上逆 C.卫表不和
水泵接合器接口的位置应方便操作,安装在便于消防车接近的人行道或非机动车行驶地段,
男性,3岁半,诉发音不清求治,口腔检查:舌不能自由前伸,伸舌时舌尖部呈"W"形,
最新回复
(
0
)