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
2024-08-01
39
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] 【C7】
选项
A、among
B、between
C、in
D、through
答案
B
解析
between A and B是固定结构,意为“在A和B之间”。因此between符合句意。
转载请注明原文地址:https://tihaiku.com/zcyy/3701344.html
相关试题推荐
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Scientistsbelievetheyhavesolvedoneoftheenduringmysteriesofthesex
Whenwasthelasttimeyoucomeoutofaverysuccessful【M1】______filmand
随机试题
Normallyastudentmustattendacertainnumberofcoursesinordertogradu
A.Ⅰ型变态反应 B.Ⅱ型变态反应 C.Ⅳ型变态反应 D.Ⅲ型变态反应
以下不是重度子痫前期并发症的是A.急性肾功能衰竭 B.凝血功能障碍 C.胎盘
某支气管扩张患者,胸片提示病变位于左肺下叶外底段,体位引流选择的合适体位是A.取
属于客户的其他理财要求的是( )。 Ⅰ.收入保护 Ⅱ.资产保护 Ⅲ.客
下列原则中,属于我国民法基本原则的有( )。A:平等原则 B:自愿原则 C
A.了解胆囊切除术后胆道情况 B.确定是否需要探查胆总管 C.明确肝内病变的
期货交易流程中,客户办理开户登记的正确程序为( )。A.签署合同→风险揭示→缴
黑螵蛸的原动物是A.大刀螂 B.小刀螂 C.薄翅螳 D.绿污斑螳 E.巨
衡量宏观税收负担的指标包括()。A.全部税收负担率 B.直接税负担率
最新回复
(
0
)