首页
登录
职称英语
Hungry prehistoric hunters, not climate change, drove elephants to extinctio
Hungry prehistoric hunters, not climate change, drove elephants to extinctio
游客
2024-01-26
3
管理
问题
Hungry prehistoric hunters, not climate change, drove elephants to extinction during the Pleistocene era (更新世), new research suggests.
At least 12 kinds of elephants【C1】______to wander about the African, Eurasian, and American continents. Today, only two【C2】______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,【C3】______vegetation and broke up habitats (栖息地), causing the death of those unable to adapt to the new conditions. Another【C4】______blames prehistoric humans, whose improved weapons and hunting techniques allowed them to wipe out whole herds of elephants.
To help【C5】______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【C6】______regions should match human expansion into those regions. On the contrary, if the extinction was【C7】______to climate change, elephants should remain in regions【C8】______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【C9】______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 rerfuges【C10】______to humans, such as tropical forests, says Surovell.
A. uninviting B. migrated C. declined D. due
E. memorial F. specific G. already H. casually
I. hypothesis J. endurance K. resolve L. polish
M. altered N. used O. species [br] 【C7】
选项
答案
D
解析
此处需要形容词,或者是动词的过去分词作谓语。动词的过去分词形式有migrated,altered,used,declined。从语义角度看,显然都不合适,那么只有考虑形容词。due与to搭配,意为“由于”。due to climate change意为“由于气候变化”。
转载请注明原文地址:https://tihaiku.com/zcyy/3395372.html
相关试题推荐
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]PresidentBushspokeonthefirstanniversaryofthechangeo
[originaltext]PresidentBushspokeonthefirstanniversaryofthechangeo
[originaltext]M:Speakingofthesubjectoftoday,(12)whatchangeshaveyousee
[originaltext]M:Speakingofthesubjectoftoday,(12)whatchangeshaveyousee
BeingObjectiveonClimateChange[A]Lastweek,CraigRucke
BeingObjectiveonClimateChange[A]Lastweek,CraigRucke
BeingObjectiveonClimateChange[A]Lastweek,CraigRucke
BeingObjectiveonClimateChange[A]Lastweek,CraigRucke
BeingObjectiveonClimateChange[A]Lastweek,CraigRucke
随机试题
Accordingtothewriter,asfarassafetyisconcerned,thetwosidesofdriving
Ifyou’relikemostpeople,you’ve【B1】______fakelisteningmanytimes.Youg
Mysterynovelssellthousandsofcopieseachyear.Andmany【C1】______countA
春季角结膜炎按部位可分为A.睑结膜型 B.混合型 C.角膜缘型 D.球结膜
采用追溯调整法,需要做的工作有()。 A.在会计政策变更的当年采用新的会计政
(2016年真题)某银行最近推出的一种新的贷款品种,该品种的利率每年根据通货膨胀
(2010年真题)关于内源性动机和外源性动机的说法,错误的是()。A.内源
2014年已建成年产10万吨的某钢厂,其投资额为4000万元,2018年拟建生产
在沉箱重力式码头施工中,沉箱安放就位填充完毕后,后方抛石棱体及倒滤层应从墙后开始
30岁女性,放置V型宫内节育环3年,来院常规检查.平时月经正常,末次月经10天前
最新回复
(
0
)