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
When global warming finally came, it stuck with a vengeance(异乎寻常地). In some regions, temperatures rose several degrees in less t
When global warming finally came, it stuck with a vengeance(异乎寻常地). In some regions, temperatures rose several degrees in less t
admin
2017-02-01
23
问题
When global warming finally came, it stuck with a vengeance(异乎寻常地). In some regions, temperatures rose several degrees in less than a century. Sea levels shot up nearly 400 feet, flooding coastal settlements and forcing people to migrate inland. Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia. After driving many of the animals around them to near extinction, people were forced to abandon their old way of life for a radically new survival strategy that resulted in widespread starvation and disease. The adaptation was farming: the global-warming crisis that gave rise to it happened more than 10,000 years ago.
As environmentalists convene in Rio de Janeiro this week to ponder the global climate of the future, earth scientists are in the midst of a revolution in understanding how climate has changed in the past—and how those changes have transformed human existence. Researchers have begun to piece together an illuminating picture of the powerful geological and astronomical forces that have combined to change the planet’s environment from hot to cold, wet to dry and back again over a time period stretching back hundreds of millions of years.
Most important, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species. New research now suggests that climate shifts have played a key role in nearly every significant turning point in human evolution: from the dawn of primates(灵长目动物)some 65 million years ago to human ancestors rising up to walk on two legs, from the huge expansion of the human brain to the rise of agriculture. Indeed, the human history has not been merely touched by global climate change, some scientists argue, it has in some instances been driven by it.
The new research has profound implications for the environmental summit in Rio. Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth. The benign(宜人的)global environment that has existed over the past 10,000 years—during which agriculture, writing, cities and most other features of civilization appeared—is a mere bright spot in a much larger pattern of widely varying climate over the ages. In fact, the pattern of climate change in the past reveals that Earth’s climate will almost certainly go through dramatic changes in the future— even without the influence of human activity.
Farming emerged as a survival strategy because man had been obliged_____.
选项
A、to give up his former way of life
B、to leave the coastal areas
C、to follow the ever-shifting vegetation
D、to abandon his original settlement
答案
A
解析
文章第1段最后两句提到“人类在将其周围的许多种动物逼向濒临灭绝的境地之后,也被迫放弃他们已导致饥荒、疾病的旧有生活方式而选择全新的求生策略。这种策略就是农业”。A与文章的意思相符合。
转载请注明原文地址:https://kaotiyun.com/show/COF7777K
0
大学英语六级
相关试题推荐
InternationalWomen’sDay(8March)isanoccasionmarkedbywomen’sgroupsaroundtheworld.Thisdateisalsocommemoratedatth
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainanditsfunctions.Classicalmusic,【B1】______songsbyMoza
A、Inthelibrary.B、Inausedbookstore.C、Inthestreet.D、Inahistoricalmuseum.B
A、Itfollowsauniversalpattern.B、Itvariesamongindividualsandcultures.C、Itchangesfromcountriestocountries.D、Itdep
A、Bothbeerandcoffee.B、Coffee.C、Neitherbeernorcoffee.D、Beer.B
A、Theyextendtheirwaterpipes.B、Theygiveoutfaintcries.C、Theymakenoisestodriveawayinsects.D、Theybecomeelasticli
KyleMaguirewantedtoattendtheUniversityofNebraskaassoonashegraduatedfromhighschoolyearsago.AnaspiringWebdev
AreTeenagersReallyCarelessAboutOnlinePrivacy?[A]Theyshare,like,everything.Howtheyfeelaboutasong,theirmathshom
Theincreaseinglobaltrademeansthatinternationalcompaniescannotaffordtomakecostlyadvertisingmistakesiftheywantt
随机试题
施工成本控制的正确步骤为()。
TUR一P术中患者主诉下腹痛、恶心,应该警惕
国内生产总值不能全面反映经济增长的质量和()。
个人汽车贷款业务的重要特征不包括()。
社会工作者田雪联合医护人员,采取讲座方式,对有关伤病残所引起的心理、生理问题和社会影响开展宣传教育。这项工作属于优抚医院社会工作中的()内容。
邓小平理论走向成熟的标志是()。
唐朝的土地所有制分为国家所有和私人所有,属于私有土地的是()
只有住在广江市的人才能够不理睬通货膨胀的影响;住在广江市的每一个人都要付税;每一个付税的人都发牢骚。根据上面的这些句子,判断下列各项哪项一定是真的?I.每一个不理睬通货膨胀影响的人都要付税。Ⅱ.不发牢骚的人中没有一个能够不理睬
中国位于亚洲东部、太平洋的西岸,总面积约960万平方公里,是世界第三大国家。中国南北相距约5500公里,东西相距约5200公里,在地图上的形状像一只雄鸡(rooster)。中国地势(terrain)西高东低,地形多种多样,包括山地、高原(plateau)、
Forthispart,youareallowed30minutestowriteashortessayentitledOnUrbanWaterlogging(内涝)followingtheoutlinegiven
最新回复
(
0
)