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
2023-07-28
40
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【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 his 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 whet1 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. Modem elephants survived in refuges【S10】______to humans, such as tropical forests, says Surovell.
A) uninviting B) migrated C) used D) due
E) mysterious F) specific G) already H) casually
I) hypothesis J) endurance K) resolve L) polish
M) altered N) declined O) species [br] 【S7】
选项
答案
D
解析
从上下文看,此处最合适的选择是due,due与to搭配,意为“由于”,本句中的意思为“由于气候的变化”。
转载请注明原文地址:https://tihaiku.com/zcyy/2876944.html
相关试题推荐
Socialchangeismorelikelytooccurinsocietieswherethereisamixture
Socialchangeismorelikelytooccurinsocietieswherethereisamixture
Socialchangeismorelikelytooccurinsocietieswherethereisamixture
Socialchangeismorelikelytooccurinsocietieswherethereisamixture
[originaltext]TherearemanyreasonswhyfamilylifeinBritainhaschanged
Inthepastfiftyyears,Americansocietyhaschangedagreatdeal.Fiftyye
Inthepastfiftyyears,Americansocietyhaschangedagreatdeal.Fiftyye
Inthepastfiftyyears,Americansocietyhaschangedagreatdeal.Fiftyye
Forthispart,youareallowed30minutestowriteacompositionentitledChange
[originaltext]M:Ihavebeenstudyingtoomuchandneedachange.SoIamjust
随机试题
ThehomelessmakeupagrowingpercentageofAmerica’spopulation.【C1】____
PathsofGloryA)Whatyounoticefirstaboutthetwo
教学大纲是高校课程的总体规划。()
明细分类账的登记依据可以是()。A.原始凭证 B.汇总原始凭证 C.记账凭证
以“披星戴月”为女子传统服饰披肩的民族是()。A.苗族 B.葬族 C.纳西族
患者,女性,48岁。工作中突发心前区剧烈压榨性疼痛,向后背部放射。急诊入院,查心
患儿4岁,患室间隔缺损,病情较重,平时需用地高辛维持心功能。现患儿因上呼吸道感染
B市的张女士在H区将私家车停在马路边,到饭店吃饭,饭后发现车上有一张“停车记录告
()hishelp,Ipassedthisexaminthe
A.平面弯曲 B.斜弯曲 C.平面弯曲与扭转的组合 D.斜弯曲与扭转的组合
最新回复
(
0
)