首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Scientists had thought people began manipulating fire to create tools in Europe about 25, 000 years ago. But the new finds sugge
Scientists had thought people began manipulating fire to create tools in Europe about 25, 000 years ago. But the new finds sugge
admin
2010-06-26
35
问题
Scientists had thought people began manipulating fire to create tools in Europe about 25, 000 years ago. But the new finds suggest that people in【C1】______is now South Africa discovered that heating a stone called silcrete would make it easier to flake, allowing them to shape more 【C2】______ blades, knives, and other tools. These early engineers likely used some of these tools to hunt and butcher wide range of【C3】______, from the aggressive buffalo to the tiny rat.
This sophisticated control【C4】______ fire reflects advanced smarts, and marks the turning point【C5】______we became " uniquely human," said study leader Kyle Brown, an archaeologist at the University of Cape Town. "These people were extremely【C6】______," Brown said. "These are not the【C7】______of the classic cavemen. "
As part of the study, the researchers 【C8】______ the processes the early Africans likely【C9】______ to make the stone tools. Heated over a fire pit, the silcrete flaked and【C10】______a glossy red color.
Such craftsmanship required thinking 【C11】______, a sign of high intelligence, Brown said. People had to【C12】______ firewood, build the fire, work the stone, and then【C13】______the handle to the stone using natural adhesives. " Because(this is)such a sophisticated technology, this is something that would【C14】______ language to【C15】______ to the next generation," he added.
But paleoanthropologist John Shea isn’t convinced by the idea that " heat treating" stone was a sign of the 【C16】______to modern human behavior. " My position is that you shouldn’t 【C17】______ this event—you have to prove it," Shea said.【C18】______, Shea praised the study, saying it will 【C19】______ people to seek out other heat-treated stone tools【C20】______ in the African record.
【C10】
选项
A、took up
B、took to
C、took off
D、took on
答案
D
解析
动词短语辨析题。[A]took up“占据,占领”;[B]took to“开始,喜欢”;[C]took off“脱下”; [D]took on“呈现”。根据原文可知,[D]为答案。
转载请注明原文地址:https://kaotiyun.com/show/MF1K777K
0
专业英语四级
相关试题推荐
Peopletakephotographsfora【C1】______ofreasonsbutthemost【C2】______istomakearecordofsomethinginordertoshowot
Lastyear,Ipaidathree-dayvisittothecompanyasavisitingengineer,andwastreated______.
Nexttimeyougazeoutside【C1】______acoldwinterdayandthinkhowdeadeverythingappears,takeacloserlook.Naturema
IsContinuingEdforYou?Continuingeducationisimportantforeveryonenow,inallfields.Almostassoonasyou’vecomp
Canelectricitycausecancer?Inasocietythatliterallyrunsonelectricpower,theveryideaseemspreposterous.Butformore
Canelectricitycausecancer?Inasocietythatliterallyrunsonelectricpower,theveryideaseemspreposterous.Butformore
Municipalsewageisofrelative]yrecentoriginasapollutant.Itwasfirstbroughttopublicattentioninthe19thcenturyby
Municipalsewageisofrelative]yrecentoriginasapollutant.Itwasfirstbroughttopublicattentioninthe19thcenturyby
By2000,productionintheareaisexpectedtodouble______of1990.
Itisoftenmoredifficult______thantogetfinancialsupportfortheproject.
随机试题
以下那些属于系统的物理故障
诊断尿路阳性结石的首选X线检查是
A、蛋白沉淀金属离子,保护黏膜B、纳洛酮拮抗吗啡中毒C、阿托品拮抗有机磷中毒D、二巯丙醇夺取与组织中酶系统结合的金属离子E、谷胱甘肽拮抗氰化物中毒常用药物拮抗方法中属于化学拮抗的是()。
能够切割金属与非金属材料,且能切割大厚工件的切割方法为()。
建筑材料的采购费、仓储费、工地保管费和仓储损耗费属于建筑安装工程的()
期货投资者保障基金由中国证监会集中管理、统筹使用。()
领导的()技能是有效地与他人共事并建立团队的能力。
《鉴定书》由()签名。
关于公文写作的基本要求,下列说法错误的是()。
把剩余价值转化为资本,或者说剩余价值的资本化,就是资本积累。马克思关于资本积累的学说是剩余价值理论的重要组成部分。资本积累的源泉是()
最新回复
(
0
)