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
2023-12-30
27
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] 【C17】
选项
A、helpful
B、suitable
C、unstable
D、awful
答案
C
解析
helpful意为“有帮助的,有用的”,suitable意为“适当的,相配的”,unstable意为“不稳定的”,awful意为“可怕的,糟糕的”。上文提到这种姿势的重要改变带来了诸多不便,结合常识可知,猿人刚直立行走时摇摇晃晃的,且下文也出现了相关表达unstable position,所以C最符合文意。
转载请注明原文地址:https://tihaiku.com/zcyy/3318204.html
相关试题推荐
_____commonusageamongeconomists,theterm"naturalrate"ismisleading.A、Ith
AcollegegraduatewhoAistrainedinoneofthenaturalBsciencesormathematic
Manypartsoftheworldarelosingimportantnaturalresources,suchasforests,a
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Naturalflavoringsandfragrancesareoftencostlyandlimitedinsupply.Fo
Thefirstrecordeduseofnaturalgastolightstreetlampsitwasinthetowno
随机试题
[originaltext]M:I’mexhausted!Ican’tseestraightanymore.W:Callitaday
一般认为亚急性甲状腺炎的病因与下列哪一项有关A.细菌 B.病毒 C.衣原体
下图示意一固定沙丘某年5-9月土壤水分含量(%)随深度的变化。该沙丘位于毛乌素沙
股肿后期的治法为A.化痰软坚,利水消肿 B.和营活血,清热利湿 C.凉血清热
国家收回土地使用权有多种原因,包括()。.A:土地使用权期间届满收回 B:提前
运行中,当两段母线处于分列运行状态时,所属的两台消弧线圈控制器(或一控二的单台控
根据下列资料回答问题。 2010年底,全国高速公路里程为7.41万公里,居世
有助于把握最高最佳利用原则的经济学原理不包含()。A.收益递增递减原理
关于转让旧房及建筑物土地增值税扣除项目的税务处理,下列说法正确的有()。A
220kV变电所,一期2×180MVA主变,远景3×180MVA主变。三相有载调
最新回复
(
0
)