首页
登录
职称英语
Our ape-men forefathers had no obvious natural weapons in the struggle for su
Our ape-men forefathers had no obvious natural weapons in the struggle for su
游客
2024-04-06
13
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 ex tremely unstable and it meant that the already slow ape-men became slower still. However, they persevered 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/3543197.html
相关试题推荐
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
Ourape-menforefathershadnoobviousnaturalweaponsinthestruggleforsu
[originaltext]Themostobviousdifferencebetweenradioandtelevisionist
[originaltext]Themostobviousdifferencebetweenradioandtelevisionist
Thedestructionofournaturalresourcesandcontaminationofourfoodsuppl
随机试题
[originaltext]ThetopappealscourtinEgyptoverturnedlifesentencesagainst
[originaltext]IntheNetherlandsandBelgiumchildrendonothavetheirfun
SharingEconomicLossesThroughInsuranceEachminuteo
“爱是教育的灵魂,没有爱就没有教育”,请你结合自身感受谈谈对这句话的看法。
X线胶片对射线对比度的放大能力称为A.相对感度 B.感光度 C.照片对比度
土工织物试样调湿温度与饱和相对湿度分别为()。A:20℃±2℃,60%±2%
脊柱损伤后,跟腱反射消失,膝腱反射正常,可能损伤的脊髓节段是A.S以下 B.S
资产评估机构出具资产评估报告前,与委托人或者相关当事人沟通的内容包括()。
与金瓷冠强度无关的因素是A.基底冠厚度 B.瓷粉的颜色 C.金属热膨胀系数
竣工决算审计是对项目竣工决算的()进行评价。A.真实性 B.时效性 C.完
最新回复
(
0
)