新GRE阅读机经：美国远古人的起源时间
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新GRE阅读机经：美国远古人的起源时间
新GRE考试阅读部分机经：美国远古人的起源时间
Recent discoveries in New World archaeology along with newscientific methods for analyzing
data have led to new ideas regarding theorigin of the first peoples of the Americas and their
time of arrival.
新大陆考古发现和新的科学方法
The traditional theory held that the first Americans crossed theland bridge from Siberia to
Alaska around 11，500 years ago andfollowed an "ice-free corridor" between two large Canadian
ice sheets (theLaurentide and Cordilleran) to reach unglaciated lands to the south. These
firstinhabitants， whose archaeological sites are scattered across North and SouthAmerica， were
called the Clovis people， named after thetown in New Mexico where their fluted spear points used
for hunting mammothwere 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。
There is now convincing evidence of human habitation sites that dateearlier than the Clovis
culture including sites located in South America. Monte Verde， a well-studied sitelocated along
a river near southern central Chile， dates 12，500 yearsago. This site contains the buried remnants
of dwellings， stone toolsincluding large bifacial projectile points， and preservedmedicinal
and edible plants. How did people manage to settle this far south at such an earlydate? A coastal
migration route is now gaining more acceptance， rather thanthe older view of small bands moving
on foot across the middle of the landbridge between Siberia and Alaska and into the continents.
Emergingevidence suggests that people with boats moved along the Pacific coast intoAlaska and
northwestern Canada and eventually south to Peru and Chile by 12，500 yearsago—and perhaps much
earlier. Archaeologicalevidence in Australia， Melanesia， and Japan indicate boats were in use
as far back as 25，000 to 40，000 yearsago. Sea routes would have provided abundant food resources
and easierand faster movement than land routes. Many coastal areaswere unglaciated at this time，
providing opportunities for landfall along the way. Severalearly sites along the coast of Canada，
California， Peru， Ecuador， and Chiledate between 10，000 and 12，000 years ago. Many potential
coastal sites are now submerged， makinginvestigation difficult.
这么早他们怎么跑这么远的?新：沿海移民路线;旧：从大陆架中间步行(第一段那种)。
船：沿太平洋海岸线：Alaska-西北加拿大-Peru和Chile;
澳大利亚、Melanesia和日本的考古表明25，000 to 40，000 years ago开始有船。
沿海路线比路上好。。。容易landfall，很多site被埋了不好挖。
小马过河编辑为大家整理了GRE阅读机经，主要与美国远古人的起源时间相关的，供各位新GRE考生
进行参考。
