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
26
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
【S10】
选项
答案
A
解析
此处的词应该与to humans一起作后置定语,修饰refuges,所以可能是形容词或动词的过去分词。从词义上来看,动词的过去分词不合适,所以答案肯定是形容词。而根据下文的such as tropical forests,此处应该是一个具有消极意义的形容词,所以选uninviting。refuges uninviting to humans意为“人类不感兴趣的地方”。
转载请注明原文地址:https://jikaoti.com/ti/nU1FFFFM
0
大学英语四级
相关试题推荐
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopedachecklistofstressfulevents.Theyappreciatedthe
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopedachecklistofstressfulevents.Theyappreciatedthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
Peoplebecomequiteillogicalwhentheytrytodecidewhatcanbeeatenandwhatcannot.IfyoulivedintheMediterranean,for
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
推动物体从静止开始滑动时比较费力,一旦滑动起来之后,要维持物体继续滑动就比较省力。这说明动摩擦因数________静摩擦因数。
用叩听法检查可鉴定出的游离腹水量为
患者,男,60岁。患慢性支气管炎、阻塞性肺气肿合并阻塞性肺疾病10余年,近2天因天气突然变化,患者出现咳嗽、咳痰、气喘等症状。入院检查:呼吸30次/min,SaO288%。血气分析结果:PaO250mmHg,PCO260mmHg。该患者缺氧的类型为
按照机械设备的功能分类,电气滤清器应属于()。
商用房贷款的借款人需要调整借款期限的,应向银行提交期限调整申请书,并必须具备的条件有()。
以下指标反映了借款客户的短期偿债能力,其中分析错误的是()。
马头琴是()的乐器。
求.
设y"一3y’+ay=一5e—x的特解形式为Axe—x,则其通解为___________.
端午节端午节,也叫龙舟节,是中国农历的五月初五。关于这个节日有很多传说,但是最著名的是屈原的传说。屈原是战国时期楚国的一位大臣。他正直,忠诚,因为提出让国家和平繁荣的建议而为人所尊重。然而,国王的统治让屈原日益心灰意冷,他于农历五月初五自沉汨罗江
最新回复
(
0
)