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
In the atmosphere, carbon dioxide acts rather like a one-way mirror—the glass in the roof of a greenhouse which allows the sun’s
In the atmosphere, carbon dioxide acts rather like a one-way mirror—the glass in the roof of a greenhouse which allows the sun’s
admin
2011-01-10
60
问题
In the atmosphere, carbon dioxide acts rather like a one-way mirror—the glass in the roof of a greenhouse which allows the sun’s rays to enter but prevents the heat from escaping.
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. Also. 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. Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: Which natural cause has most effect on the weather?
One possibility is the variable behavior of the sun. Astronomers at one research station have studied the hot spots and "cold" spots (that is, the relatively less hot spots) on the sun. As the sun rotates, every 27.5 days, it presents hotter or "colder" faces to the earth, and different aspects to different parts of the earth. This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation. The sun is also variable over a long term: its heat output goes up and down in cycles, the latest trend being downward.
Scientists are-now finding mutual relations between models of solar-weather interactions and the actual climate over many thousands of years, including the last Ice Age. The problem is that the models are predicting that the world should be entering a new Ice Age and it is not. One way of solving this theoretical difficulty is to assume a delay of thousands of years while the solar effects overcome the inertia of the earth’s climate. If this is tight, the warming effect of carbon dioxide might thus be serving as a useful counter-balance to the sun’s diminishing heat.
The article was written to explain ______.
选项
A、the greenhouse effect
B、the solar effects on the earth
C、the models of solar-weather interactions
D、the causes affecting weather
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/iWcO777K
本试题收录于:
NAETI中级口译笔试题库外语翻译证书(NAETI)分类
0
NAETI中级口译笔试
外语翻译证书(NAETI)
相关试题推荐
Thestreamoverflowedandtheflood______allofthefarmlandinthearea.
IntheUnitedStatesandinmanyothercountriesaroundtheworld,therearefourmainwaysforpeopletobe【C1】______aboutdeve
ItwasnotlongbeforeSkinners,thefamousbehaviorist,realizedthelimitationsofhispsychologicalresearchthananotherpsy
Shouldwecareifover150knownspeciesofanimalshave【C1】______fromtheearthinthelastfiftyyears?Shouldwebeconcerned
Taylorwouldratherhaveafine-needleaspirationbiopsytosufferfromvariouskindsofconfusionseveryday.
Istudyattentively.ThemoreIgotconcentratedonmylessons,thebetterIcanlearn.
下面你将听到一段回忆邓小平同志的发言。上个世纪70年代末,我参加了第四次全国文代会,大会上小平同志致辞时获得的长时间的热烈掌声给我留下了极深的印象。这次大会是文艺界经历十年浩劫后的第…次盛会,也是小平同志复出后第一次代表党中央、国务院同广大文艺工
下面你将听到外商有关中国零售业发展情况的一段讲话。China’seconomy,oncereliantonstatespendinginheavyindustry,hasincreasinglylookedtothe
当前经济全球化不断发展,科学技术突飞猛进,为新世纪全球经济和社会发展提供了前所未有的技术条件。尤其是信息通信技术的发展,深刻地改变着人们的经济社会和文化生活方式。一方面,信息化为经济发展和社会进步提供了难得的数字机遇,而另一方面它也给我们带来了各
TheFrenchwordrenaissancemeansrebirth.Itwasfirstusedin1855bythehistorianJulesMicheletinhisHistoryofFrance,t
随机试题
潮汕工夫茶主要冲泡器具中,品杯多选薄胎白瓷杯,只有()大。
A.年药品销售额2亿元以上B.年药品销售额5000万-2亿元C.年药品销售额5000万元以下D.年药品销售额500万-1000万元E.年药品销售额500万元以下
以下关于肺癌患者胸痛的护理措施,哪项错误
柯布西埃于1922年提出了“明天城市”的设想,下列表述中错误的是()
勘察、设计单位相关的质量责任和义务包括()。
在进行贷款或融资活动时,贷款者和借款者并不能自由地在利率预期的基础上将债券从一个偿还期部分替换成另一个偿还期部分,或者说市场是低效的。这是( )的观点。
ABC公司正在分析是否要购置价值$l20万的新设备来生产单位收益为$6的产品。该设备的使用年限为5年,根据税法使用直线法折旧,期末没有残值。销售量的研究方案如下所示:如果ABC公司使用12%的最低报酬率,其适用的税率为40%,该项目预期的净现
公安机关法制部门在组织执法检查和专项、专案调查中,发现本级或者下级公安机关的执法行为有错误的,应当按规定()。
某软件公司开发的媒体播放软件,在我国受法律保护的依据是(53)。 按制定标准的不同层次和适应范围,标准可分为国际标准、国家标准、行业标准和企业标准等,(54)制定的标准是国际标准。 我国国家标准分为强制性国家标准和推荐性国家标准,强制性国家标准
Humanmemoryisnotoriouslyunreliable.Evenpeoplewiththesharpestfacial-recognitionskillscanonlyremembersomuch.It
最新回复
(
0
)