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
Egypt Felled by Famine Even ancient Egypt’s mighty pyramid builders were powerless in the face of the famine that helped bring d
Egypt Felled by Famine Even ancient Egypt’s mighty pyramid builders were powerless in the face of the famine that helped bring d
admin
2009-06-15
59
问题
Egypt Felled by Famine
Even ancient Egypt’s mighty pyramid builders were powerless in the face of the famine that helped bring down their civilisation around 2180 BC. Now evidence gleaned from mud deposited by the River Nile suggests that a shift in climate thousands of kilometres to the south was ultimately to blame -- and the same or worse could happen today.
The ancient Egyptians depended on the Nile’s annual floods to irrigate their crops. But any change in climate that pushed the African monsoons southwards out of Ethiopia would have diminished these floods.
Dwindling rains in the Ethiopian highlands would have meant fewer plants to stablise the soil. When rain did fall it would have washed large amounts of soil into the Blue Nile and into Egypt, along with sediment from the White Nile4.
The Blue Nile mud has a different isotope signature from that of the White Nile. So by analysing isotope differences in mud deposited in the Nile Delta, Michael Krom of Leeds University worked out what proportion of sediment came from each branch of the river.
Krom reasons that during periods of drought, the amount of the Blue Nile mud in the river’ would be relatively high. He found that one of these periods, from 4,500 to 4,200 years ago, immediately predates the fall of the Egypt’s Old Kingdom.
The weakened waters would have been catastrophic for the Egyptians. "Changes that affect food supply don’t have to be very large to have a ripple effect in societies," says Bill Ryan of the Lamont Doherty Earth Observatory in New York.
Similar events today could be even more devastating, says team member Daniel Stanley, a geoarchaeologist from the Smithsonian Institution in Washington, D.C. "Anything humans do to shift the climate belts would have an even worse effect along the Nile system today because the populations have increased dramatically."
选项
A、Because they once worked miracles.
B、Because they were well-built.
C、Because they were actually very weak.
D、Because even they were unable to rescue their civilisation.
答案
D
解析
这道题问的是:作者为什么提及“建筑金字塔的人”?文章开头有这么一句话,中文意思是:即使是古埃及伟大的金字塔建筑者面对那场在公元前2180年促使他们的文明毁灭的饥荒也无能为力。D说的是:甚至是他们也不能挽救他们的文明。因此D是正确答案。A说的是:他们曾创造过奇迹。B说的是:他们很强壮。C说的是:他们其实很弱。
转载请注明原文地址:https://kaotiyun.com/show/XS2d777K
本试题收录于:
职称英语卫生类基础题库职称英语分类
0
职称英语卫生类基础
职称英语
相关试题推荐
书老师被走拿了
HereisanadvertisementaboutforacertainpositioninthenewspaperofDec.7,2005.Readtheadvertisementandcompletethe
HereisanadvertisementaboutforacertainpositioninthenewspaperofDec.7,2005.Readtheadvertisementandcompletethe
Therehavebeenmanytechnologicaldevelopmentsinthe20thcentury,forexample,computersandelectricpower.Chooseeitherof
Readthefollowingpassageandanswerquestions9-18.1.Whenoneofyourcartiresgoesflat,therearetwothingsyoucando.
Tradeiscentraltohumanhealth,prosperityandsocialwelfare.【R1】______Examplesoftradeindailylifearesoabundanttheys
Youaregoingtoreadanarticleabouttheeffectofadvertisingonchildren.Forquestions22-35,choosefromthesectionsof
MenTooMaySufferfromDomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimatepartnerd
MenTooMaySufferfromDomesticViolenceNearlythreein10menhaveexperiencedviolenceatthehandsofanintimatepartnerd
随机试题
复议机关应当在收到复议申请书之日起2个月内作出()。
2017年第一季度,某省农林牧渔业增加值361.78亿元,比上年同期增长5.9%,高于上年同期0.2个百分点,具体情况如下:该省种植业增加值119.21亿元,比上年同期增长8.2%。其中蔬菜种植面积358.80万亩,比上年同期增加18.23万亩,蔬菜产量
强制辩护
男,38岁。因反复左侧头痛半年,加重伴呕吐3天于急诊留观。查体:浅昏迷,双侧瞳孔为左侧3mm,右侧2mm,对光反应迟钝。右侧肢体肌力4级,右侧Babinski征阳性。引起病人浅昏迷、瞳孔不等大及其他阳性体征的最可能原因是
雨期填筑路堤需借土时,取土坑距离填方坡脚不宜小于()。
对建造师的执业要求有()。
根据个人所得税法律制度的规定,下列情形中,纳税人应当自行申报缴纳个人所得税的有()。
甲被法院宣告死亡,甲父乙、甲妻丙、甲子丁分割了其遗产。后乙病故,丁代位继承了乙的部分遗产。丙与戊再婚后因车祸遇难,丁、戊又分割了丙的遗产。现甲重新出现,法院撤销死亡宣告。下列选项正确的是
阅读材料,回答问题:材料1央视在从今年10月1日至6日连续播出关于爱国的系列街访,很多人被问及“爱国让你想起了什么”,“什么样的行为让你觉得是不爱国”等,回答五花八门。这些采访提升了公众对爱国主义的关注,也带来了知识分子层面新的思考和争
TheUnitedNationsDevelopmentProgrammesaystheworldisfacingawatercrisis.Itsayseachyearmorethantwomillionchildr
最新回复
(
0
)