Recent discoveries in New World archaeology along with new scientific methods for analyzing data have led to new ideas regarding the origin of the first peoples of the Americas and their time of arrival.
The traditional theory held that the first Americans crossed the land bridge from Siberia to Alaska around 11,500 years ago and followed an ice-free corridor between two large Canadian ice sheets to reach unglaciated lands to the south. These first inhabitants, whose archaeological sites are scattered across North and South America, were called the Clovis people, named after the town in New Mexico where their fluted spear points used for hunting mammoth were first found in 1932.
旧观点:11500年前越冰南下,这些第一批定居者散布在南北美洲,叫做Clovis人。
新观点:有更早的12500年前,在智利的MV。
上一篇: 2014年GRE考试阅读模拟试题4
下一篇: GRE阅读该怎么攻克
体坛英语资讯:Barca lose but stay top in Spain as Real and Atletico Madrid both drop points
英登陆北美四百年 女王伊丽莎白将访美
希拉克挥别欧盟 默克尔赠啤酒杯作退休礼物
国际英语资讯:European Green Deal needs to be ambitious, says president of Committee of Regions
全国妇联:对女民工加强性教育
国际英语资讯:No signs of life after New Zealand volcanic eruption: PM
国内英语资讯:Xi gives instructions on work related to veteran military officers
被粘在墙上后,一根香蕉卖出了12万美元,而且还被吃掉了!
春季妆容 自然至上
咖啡因药片是否安全?
青少年和青年人普遍患有前驱糖尿病
国内英语资讯:Chinese premier urges reform in oil, gas sector
比萨也能成为“健康食品”
“爱”——英国人最喜爱的词语
“小贝”自传--看上去很美 读下去很难
想和“天王”杰克逊面对面?先掏40万日元
体坛英语资讯:Analysis: Not only Kovac to blame for Bayerns turmoil
体坛英语资讯:Late shows for Liverpool and City as Man Utd slip to another defeat
日本警方抓获连环“内衣大盗”
调查:三成美国家庭对上网没兴趣