首页
登录
职称英语
Fire, scientists agree, helped give rise to a successful, thriving human pop
Fire, scientists agree, helped give rise to a successful, thriving human pop
游客
2023-10-10
35
管理
问题
Fire, scientists agree, helped give rise to a successful, thriving human population by providing heat for cooking and protection from the cold.
But they don’t agree【C1】______when humans began using fire. Some researchers argue that it【C2】______more than a million years ago when early humans【C3】______their way to Europe from Africa, and【C4】______say it happened much later. Now, a new study reveals that humans did not【C5】______fire until about 400 000 years ago.
Two archaeologists(考古学家)in the US report their【C6】______in the current issue of the Proceedings of the National Academy of Sciences. They looked at excavation(发掘)reports and studies from 141 sites in Europe that were【C7】______1.2 million and 35 000 years old. They think there is no clear evidence of【C8】______fire use until about 400 000 years ago. In Africa,【C9】______there are several sites where there was evidence of fire, those may have been【C10】______fires that occurred in the African grassland.【C11】______, there are also sites older than 400 000 years in Europe that indicate the【C12】______of humans, with the oldest, in Spain, more than a million years old. This means that【C13】______Europe’s extreme winter climates, early humans found a way to【C14】______without the warmth of a fire.【C15】______the researchers mention, early humans are【C16】______and persistent(坚持的). But some researchers【C17】______that it is still a puzzling explanation and it still【C18】______some serious thinking about how【C19】______the human being could have survived on a seasonally【C20】______food supply despite having small teeth and small guts. Up to now, no one has solved this problem yet. [br] 【C10】
选项
A、authentic
B、natural
C、inherent
D、automatic
答案
B
解析
根据上下文可推断,虽然在非洲发现了火的痕迹,但也可能不是人为的。结合备选项,只有natural符合文意,natural fire意为“自然火灾”。authentic“真正的;真实的”;inherent“固有的,内在的”;automatic“自动的”。
转载请注明原文地址:https://tihaiku.com/zcyy/3088183.html
相关试题推荐
"Successfulcloningofanincreasingnumberofspeciesconfirmsthegeneralimpr
Whatisscientists’aimofdrillingavolcano?[br][originaltext]16.Scientist
Whatisscientists’aimofdrillingavolcano?[br][originaltext]16.Scientist
Whatisscientists’aimofdrillingavolcano?[br][originaltext]16.Scientist
Scientistshavecuredcolorblindnessinmonkeysusinggenetherapy.As
Scientistshavecuredcolorblindnessinmonkeysusinggenetherapy.As
Scientistshavecuredcolorblindnessinmonkeysusinggenetherapy.As
Scientistshaveidentifiedthelikelyculpritinadiseasethathasdevastat
Scientistshaveidentifiedthelikelyculpritinadiseasethathasdevastat
Scientistshaveidentifiedthelikelyculpritinadiseasethathasdevastat
随机试题
______itwilldousharmorgoodremainstobeseen.A、IfB、WhetherC、WhyD、HowB
LessNews,MuchBetterA)Inthepastfewdecades,thefortu
中国是率先拥有医药文化的几个国家之一。与西医相比,中医的治疗方法完全不同。经过5000年的发展,中医已经对医药学(medicalscience)、理论
Archaeologistshavelongthoughtthatstoneshipsservedasgravesforoneo
A.不存在 B.0 C.-1 D.-2
作为工程定额体系的重要组成部分,预算定额是()。A:完成一定计价单位的某一施工
有力挑战封建神学创世说的科学著作是( )。A.《九十五条论纲》 B.《物种起
2010年6月25日的G20多伦多峰会首次明确了国际监管的四大支柱, 下列关于
血友病患儿关节积血,最常受累的关节是A.肩关节 B.肘关节 C.髋关节 D
关于2013年1~5月保险业经营状况,能够从上述资料中推出的是:A.5月
最新回复
(
0
)