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
A、Releasing less and less carbon dioxide. B、Continuing to burn fuels at the present rate. C、Melting of ice caps in the poles. D、
A、Releasing less and less carbon dioxide. B、Continuing to burn fuels at the present rate. C、Melting of ice caps in the poles. D、
admin
2014-12-18
146
问题
According to a weather expert’s prediction, the atmosphere will be 3℃ warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate. If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several meters and severely flooding coastal cities. At the same time, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of earth’s chief food-growing zones.
In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming, in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.
Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warms the earth.
However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. As a result, scientists conclude that up to now natural influences on the weather have exceeded those caused by human being.
19. According to the weather expert’s prediction, what will make the atmosphere warmer?
20. Which area is now paid more attention to by weather experts?
21. What’s the scientists’ conclusion about natural influences on the weather?
选项
A、Releasing less and less carbon dioxide.
B、Continuing to burn fuels at the present rate.
C、Melting of ice caps in the poles.
D、Raising sea level several meters.
答案
B
解析
短文开头提到根据气象专家的预测,假如人类继续以目前的速率燃烧燃料的话,到2050年大气要比现在高3℃。因此选B。
转载请注明原文地址:https://kaotiyun.com/show/Pgm7777K
0
大学英语六级
相关试题推荐
IfthegoalofanengineeringcampatKetteringUniversityistogethighschoolgirlsinterestedinmath-andscience-relatedc
A、Mowthelawn.B、Waterthehouseplants.C、Takecareofherpets.D、Takecareofherchildren.C文中指出,当艾力克帮科恩先生看家的同时,还要帮她照顾宠物,故答
MustthePoorGoHungryJustSotheRichCanDrive?SportsstarslikeMoFarahwillnotchangeasimplefact:peoplearesta
Weallhaveregrets,butnewresearchsuggeststhemostcommonregretamongAmericanadultsinvolvesalostromanticopportunity
Weallhaveregrets,butnewresearchsuggeststhemostcommonregretamongAmericanadultsinvolvesalostromanticopportunity
A、Cancer.B、Ill-treatment.C、Accidents.D、Electricshock.C文章末尾处提到,癌症是排在意外事故之后导致15岁以下儿童死亡的第二大主要原因,也就是说第一大原因是意外事故,故答案为C)。
A、Bycontrollingthestress.B、Bystartingagoodcareer.C、Byfindingthecauseofstress.D、Bytakingcareofourselves.A事实细节
A、Thewomanshouldn’tspeaksoopenly.B、Hetotallyagreeswiththewoman.C、Thewomanshouldn’tthinkthatway.D、Hebelieveso
A、Drawingupabusinessplan.B、Finalizingacontract.C、Reviewingaco-authoredarticle.D、Discussingatermpaper.B
A、Talkwithteachersabouttheirchildren.B、HaveanEnglishclasstogether.C、Sendfruitsandvegetablestonearbyrestaurants.
随机试题
甲型肝炎传染性最强的时期是
在整个经济结构中,()居于核心地位,对经济结构的发展变化起举足轻重作用。
通常所说的I/O设备指的是()。
征收个人住宅的,应当保障()。
承包人在进行柱基础填埋前48小时电话通知工程师准备验收,临近验收时,工程师因有事无法参加验收,便派人通知承包人延期验收。第4天,承包人为了不影响施工进度,自行对柱基础进行了验收,并作了记录。此后承包人开始继续施工,并向发包人提出工程延期2天、承担停工费用损
新建表格时,Word2000中的表格以虚线画出,该虚线不能打印出来。()
对供应商质量保证能力监控的目的有()。
()将社会现象作为研究起点,重视社会现象的概括归纳,努力寻求现象间的相关关系,由经验事实来检验其假设,从而发现其规律。
关于抢夺罪的正确说法包括()
下列叙述中正确的是
最新回复
(
0
)