首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Hungry prehistoric bunters, not climate change, drove elephants to extinction during the Pleistocene era(更新世), new research sugg
Hungry prehistoric bunters, not climate change, drove elephants to extinction during the Pleistocene era(更新世), new research sugg
admin
2013-06-17
28
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
【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://kaotiyun.com/show/CaM7777K
0
大学英语四级
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
Manyofthepeoplewhoappearmostoftenandmostgloriouslyinhistorybooksaregreatconquerorsandgeneralsandsoldiers,wh
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
随机试题
了解群体交流过程的性质,有助于解释群体中的一些行为,能使你成为更有效的领导者或参与者。运用对角色功能的描述,说出下列在会议中说的话具有什么功能(注意:一种行为可能有一种以上的功能)。①“张三,对这个问题你有什么想法?”②“是的,那对你可能没事,
下列指标中,反映企业运营能力的指标是【】
尸体剖检时,剪开心包腔的正确方法是
乙醇消毒最适宜的浓度是
A.婴儿基础代谢需要热卡B.婴儿生长发育需要热卡C.婴儿活动所需要热卡D.食物特殊动力作用热卡E.排泄损失热卡热量需要占总热量15%为
建设投资的估算方法包括()。
因保险合同纠纷提起的诉讼,有权管辖的人民法院是()。
依据《义务教育音乐课程标准(2011年版)》基本理念,按下列要求进行教学设计。教学对象:七年级教学内容:《这一封书信来得巧》要求:针对重点与难点写出教学策略与基本步骤。
民事主体在法律允许的范围内有完全的意志自由,其参加民事活动、作出民事行为,不受任何组织和个人的非法干预。这是我国民法中的
UsingLyricstoDevelopStudents’CriticalLiteracyLyricsandmusicofpopularsongscanrepresentalternativeperspectives
最新回复
(
0
)