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
2023-08-16
49
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 powerful teeth nor the strong claws of the big cats. They could not【C1】______with the bear, whose strength, speed and claws provided an impressive ’small fire’ weaponry. They could not even defend themselves by running swiftly 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【C2】______to failure and extinction. But they were【C3】______with enormous concealed advantages of a kind not possessed by any of their competitors. In the search of the picking of the forest, the ape-men had【C4】______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 in a way that lay far【C5】______the search of the original inhabitants of the grassland. Good long-distance sight was quite 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【C6】______they had had to do was climb a tree. Out in the open, however, this simple solution was not【C7】______. Climbing a hill would have helped, but in many places the ground was flat.
The ape-men【C8】______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 disadvantages. It was extremely unstable and it meant that the already slow ape-men became slower still. However, they per severed and their bone structure gradually became【C9】______to the new, unstable position that【C10】______them the name Homo erectus, upright man.
A)compare B)driven C)match D)endowed
E)doomed F)developed G)all H)adopted
I)earned J)generated K)familiarized L)adapted
M)available N)beyond O)bestowed [br] 【C6】
选项
答案
G
解析
此处they had had to do是定语从句,句子缺一主语,故选名词或代词,选项中,只有all符合要求,意为“他们过去必须做的一切就只是爬树”。因此,正确答案是G。
转载请注明原文地址:https://tihaiku.com/zcyy/2930582.html
相关试题推荐
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Ho
[originaltext]Pianosarenormallyfoundinbuildingforobviousreasons.Ho
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandse
[originaltext](9)Studentswhostruggledearlyonwithbasicreadingandma
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
随机试题
Inthe1980s,homeschoolingmadeacomebackintheU.S.whenreligiouslycon
[originaltext]M:Ah,howdoyoudo,Ms.Winzmore?W:Howdoyoudo?M:Dositd
搜索引掌营销的最终目的是()。A.在搜索结果中排名靠前 B.被搜索引擎收录
(2016年)下列关于无形资产摊销会计处理的表述中,正确的有( )。A.企业内
下列药品中,属于药品类易制毒化学品的兴奋剂是()A:芬太尼 B:可待因 C
患儿,男,3岁,发现上乳中切牙唇龈反复脓肿2周,无疼痛。检查右上中切牙完整,变色
老年女性。不慎摔倒,左髋部着地,当即左髋剧痛,不能站立,急诊来院。检査见左下肢
教育学作为一门独立形态的学科,形成于()。 A.资本主义社会初期 B.封建社
脓肿切开引流中操作错误的是A.在波动明显处切口,并达最低位置 B.切口一般与皮
(2018年真题)因不可抗力造成的下列损失,应由承包人承担的是()。A.工
最新回复
(
0
)