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
40
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
______hispoorrecordinschool,theboardthinksthatheshouldstudyhard.A、In
[originaltext]W:Canyoudropbythelabforaminute?Ihavesomeexperiments
TheEuropeanUnionhadnotapprovedanumberofgeneticallymodifiedcropsu
Morethantenpercentofmotorwaydeathsarecausedbydriversfallingsleep
按经典假设,线性回归模型中的解释变量应是非随机变量,且()。A.与随机误差项不
甲手表厂(增值税一般纳税人)2019年4月委托乙加工厂加工200只高档手表,甲手
土的比重试验方法有()。A.比重瓶法 B.浮力法 C.浮称法 D.虹吸筒
加强与证券业、保险业等行业协会的沟通和协调,体现了中国银行业协会的()职责。A
王先生委托×房地产经纪公司购买一套商品住房供自己居住。该房地产经纪公司的执业房地
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A.如
最新回复
(
0
)