首页
登录
职称英语
Hungry prehistoric bunters, not climate change, drove elephants to extinctio
Hungry prehistoric bunters, not climate change, drove elephants to extinctio
游客
2024-02-12
10
管理
问题
Hungry prehistoric bunters, not climate change, drove elephants to extinction during the Pleistocene era(更新世), new research suggests.
At least 12 kinds of elephants【S1】______to wander about the African, Eurasian, and American continents. Today, only two【S2】______of elephants are left in South Asia and Africa. One theory for this dramatic death holds that rapid climate shifts at the end of the most recent major ice age, some 10,000 years ago,【S3】______vegetation and broke up habitats(栖息地), causing the death of those unable to adapt to the new conditions. Another【S4】______blames prehistoric humans, whose improved weapons and hunting techniques allowed them to wipe out whole herds of elephants.
To help【S5】______the debate, archaeologist Todd Surovell of the University of Wyoming, and colleagues tested two assumptions. If humans caused the elephant extinction, Surovell reasoned, the timing of the die-off in【S6】______regions should match human expansion into those regions. On the contrary, if the extinction was【S7】______to climate change, elephants should remain in regions【S8】______colonized by humans and would only begin to die off once climate change occurred.
The team tested both theories by analyzing where and when elephants were killed. In all, the study included 41 archaeological sites on five continents. The researchers found that, as humans【S9】______out of Africa, they left a trail of dead elephants behind them. The creatures disappear from the fossil record of a region once it became colonized by humans. Modern elephants survived in refuges【S10】______to humans, such as tropical forests, says Surovell.
A)uninviting I)hypothesis
B)migrated J)endurance
C)declined K)resolve
D)due L)polish
E)mysterious M)altered
F)specific N)used
G)already O)species
H)casually [br] 【S6】
选项
答案
F
解析
此处需要一个形容词作定语,修饰名词regions。根据下文的those regions,specific一词合适,即specific regions(特定地区)。
转载请注明原文地址:https://tihaiku.com/zcyy/3444468.html
相关试题推荐
OnCulturalExchange1.如今,各国之间的文化交流越来越频繁2.有人支持,有人质疑3.我的看法
[originaltext]Chequeshavelargelyreplacedmoneyasameansofexchange,f
[originaltext]Chequeshavelargelyreplacedmoneyasameansofexchange,f
[originaltext]TheclimateofthewestcoastisthemostmoderateinCanada.
Greatchangeshavetakenplaceinthemountainvillage,anditsappearanceis__
Recently,theUnitedNationsscientificpanelstudyingclimatechangedeclar
Recently,theUnitedNationsscientificpanelstudyingclimatechangedeclar
Recently,theUnitedNationsscientificpanelstudyingclimatechangedeclar
Change--ortheabilityto______(使自己适应变化中的环境)--isessentialtoevolution.adapt
QuickChangeinStrategyforaBooksellerInthemovieY
随机试题
[originaltext]It’safact:Moststudentscantypefasterthantheycanwrit
Spain’sKingJuanCarlos,with32yearsonthe【D1】______,turns70Saturday.
[originaltext]W:Idon’tknowwhattodo.Ican’tseemtogetanyoneinthehos
[originaltext]W:Gosh!Haveyouseenthis,Richard?M:Seenwhat?W:Inthepap
封闭空气间层的传热强度主要取决于( )。A.间层中空气的对流换热 B.间层中
以欺骗、贿赂等不正当手段取得注册证书的,由注册机关()。A.给予警告,一年内
(2017年真题)下列关于LOF份额的申购、赎回和转托管的说法中,正确的是(
信息自身的种种特点以及信息不对称所带来的种种后果都要求行业管理主体对房地产经纪行
下列关于牙颌面畸形的描述,正确的是A:牙颌面畸形患者必然存在错牙合 B:上下颌
建筑物梯段跨度较大时,为了经济合理,通常不宜采用()。A.预制装配墙承式楼
最新回复
(
0
)