首页
登录
职称英语
Scientists had thought people began manipulating fire to create tools in Eur
Scientists had thought people began manipulating fire to create tools in Eur
游客
2024-10-20
36
管理
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. [br] 【C20】
选项
A、found
B、undetected
C、proven
D、established
答案
B
解析
形容词辨析题。上文提到谢伊认为布朗等人应该去证明他们的观点,就需要去寻找更多尚未被发现的证据,因此[B]undetected“未被发现的”为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3810224.html
相关试题推荐
Peopleshouldwear______dresstheyfeelcomfortablein.A、whatB、thatC、whichD
Howmanypeoplewerekilledinthemassacre?[originaltext]TheBosnianSerb
Theyaretalkingvigorouslyaboutthepeopleandcountries______theyhadvisite
Stressorpressureisreallyabigproblemnowadays.Manypeoplegetatloss
Wehavebeeneducatedtobehonestsincechildhood.Butsomepeoplealsosay
Themainaimofthespeakeristo[br][originaltext]Alotofpeopledon’t
Themainaimofthespeakeristo[br][originaltext]Alotofpeopledon’t
Steven’s______closetohisbrothermadepeoplemistakethemforoneanother.A、
Sociologistsuse"power"torefertothecapacityofpeopletocontrolori
Sociologistsuse"power"torefertothecapacityofpeopletocontrolori
随机试题
Whattimeisitnow?[br][originaltext]F:What’sthetimeonyourwatch?M:It
Borealowlsrangeoveramuchlargerareathandootherowlsofsimilarsize.Th
Thelandslidehasclaimed______livesonasouthernisland.[originaltext]
Thefoodinthatrestaurantisverygood;______,itischeap.A、moreoverB、ther
ABCD为一块方解石的一个截面,AB为垂直于纸面的晶体平面与纸面的交线。光轴方冋
根据《施工企业工程建设技术标准化管理规范》JGJ/T198-2010,施工企业工
某系统集成商M公司与甲方签订了一份电子商务平台建设项目,合同中规定,如果系统交付
慢性中央性颌骨骨髓炎的治疗应() A.切开引流 B.及早拔除病灶
某男45岁。自诉咳喘数年每至夏天,咳喘频久发。刻下咳嗽、痰黄黏稠、口干呕痛、大便
(2018年真题)可用于急、慢性肾功能不全患者的肠外营养支持的氨基酸是( )A
最新回复
(
0
)