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
68
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
【S5】
选项
答案
K
解析
此处需要一个动词原形,而且是及物动词;后跟宾语the debate。能与debate搭配的动词原形是resolve, resolve the debate意为“解决争议”。
转载请注明原文地址:https://kaotiyun.com/show/3aM7777K
0
大学英语四级
相关试题推荐
Asubjectwhichseemstohavebeeninsufficientlystudiedbydoctorsandpsychologististheinfluenceofgeographyandclimate
Inthe1960s,medicalresearchersThomasHolmesandRichardRahedevelopedachecklistofstressfulevents.Theyappreciatedthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
YukonGoldRushDiscoveryInAugust1896,threepeopleledbySkookumJimMasonheadednorth,downtheYukonRiverfromthe
Peoplebecomequiteillogicalwhentheytrytodecidewhatcanbeeatenandwhatcannot.IfyoulivedintheMediterranean,for
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
Keepingafullsocialcalendarmayhelpprotectyoufromdementia(痴呆症),researcherssaidonMonday.【1】activepeoplewhowereno
随机试题
Someproblemscanbereadilyidentifiedsimplybylookingaround.Theseproblemsconcernthepollutionofourenvironmentbytec
6岁男童,10天前有咽扁桃体炎,2日前出现眼睑水肿,以急性肾小球肾炎收入院,目前使用青霉素治疗,其目的是
狗脊的人药部位是
甲公司在城乡结合部有一宗面积为5000m2的综合用地,地上有三幢房屋,临路为店面,院内有一处仓库和一处住宅用房,基本情况见下表:如果对上述房地产进行估价,当利用成本法测算土地价格时,不应计入土地取得相关税费的是()。
下列函数中不是方程y’’-2y’+y=0的解的函数是()。
四川新五大旅游区中的“两湖一山”指的是()。
填入下列横线处的词语,最恰当的一组是( )。①月亮每月绕地球一周,______每月有一次朔和望。②花园里种着牡丹、月季、夹竹桃______其他的花木。③人民所厌恶的国家分裂和混乱的局面,______一去不复返了。
下列选项中,不属于种群自动调节机制的是______。
已知m个向量α1,…,αm线性相关,但其中任意m—1个向量都线性无关,证明:如果等式k1α1+…+kmαm=0和等式l1α1+…+lmαm=0都成立,则,其中l1≠0。
KidsoftenaskScoutBassett,ofPalmDesert,California,ifshewishesshehadtwonormallegs.Scout,18,answers,"No.Ihave
最新回复
(
0
)