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
Let us take a brief look at the planet on which we live. As Earth hurtles through space at a speed of 70,000 miles an hour, it s
Let us take a brief look at the planet on which we live. As Earth hurtles through space at a speed of 70,000 miles an hour, it s
admin
2010-01-10
71
问题
Let us take a brief look at the planet on which we live. As Earth hurtles through space at a speed of 70,000 miles an hour, it spins, as we all know, on its axis, which causes it to be flattened at the Poles. Thus if you were to stand at sea level at the North or South Pole, you would be 13 miles nearer the centre of the earth than if you stood on the Equator.
The earth is made up of three major layers — a central core, probably metallic, some 4000 miles across, a surrounding layer of compressed rock, and to top it all a very thin skin of softer rock, only about 20 to 40 miles thick — that’s about as thin as the skin of an apple, talking in relative terms.
The pressure on the central core is unimaginable. It has been calculated that at the centre it is 60 million pounds to the square inch, and this at a temperature of perhaps 10,000 degrees Fahrenheit. The earth’s interior, therefore, would seem to be of liquid metal — and evidence for this is given by the behavior of earthquake.
When an earthquake occurs, shock waves radiate from the centre just as waves radiate. outwards from the point where a stone drops into a pond. And these waves pulsate through the earth’s various layers. Some waves descend vertically and pass right through the earth, providing evidence for the existence of the core and an indication that it is fluid rather than solid. Thus, with their sensitive instruments, the scientists who study earthquakes, the seismologists, can in effect X-ray the earth.
Iceland is one of the most active volcanic regions of the world. And it was to Iceland that Jules Verne sent the hero of his book A Journey to the Centre of the Earth. This intrepid explorer clambered down the opening of an extinct volcano and followed its windings until he reached the earth’s core. There he found great oceans, and continents with vegetation. This is conception of a hollow earth we now know to be false. In the 100 years since Jules Verne published his book, the science of vulcanology, as it is called, has made great strides. But even so the deepest man has yet penetrated is about 10,000 feet. This hole, the Robinson Deep mine in South Africa, barely scratches the surface; so great is the heat at 10,000 feet that were it not for an elaborate air-conditioning system, the miners working there would be roasted. Oil borings down to 20,000 feet have shown that the deeper they go, the hotter it becomes.
The temperature of the earth at the centre is estimated to be anything between 3,000 and 11,000 degrees Fahrenheit. Some scientists believe that this tremendous heat is caused by the breaking-down of radio-active elements, which release large amounts of energy and compensate for the loss of heat from the earth’s surface. If this theory is correct, then we are all living on top of a natural atomic powerhouse.
The Robinson Deep mine in South Africa is ______ .
选项
A、too deep to work in
B、too hot to work in
C、close to the centre
D、still in use
答案
D
解析
这道题目要考的是虚拟语气的用法。解题句是“This hole,the Robinson Deep mine in South Africa,barely scratches the surface;so great is the heat at 10,000 feet that were it not for an elaborate air-conditioning system,the miners working there would be roasted.”故选D。
转载请注明原文地址:https://kaotiyun.com/show/a70O777K
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
Itisamazinghowmanypeoplestillsay,"Ineverdream",foritisnowdecadessinceitwasestablishedthateveryonehasover
Anothercriticalfactorthatplaysapartinsusceptibilitytocoldsisage.AstudydonebytheUniversityofMichiganSchoolo
Ourcompanyhasbeenmadeoneofthelargestmanufacturersinthefieldofchemicalindustry.
Carefultestingisnecessarybeforeanymoreexperimentscancontinuewiththeexploringsubmarine.
Insomecountries,______iscalled"equality"doesnotreallymeanequalrightsforallpeople.
Inadditiontoculturaldifferences,overseasstudentshavetoovercomelinguistic______assoonaspossible.
Electronicmailhasbecomeanextremelyimportantandpopularmeansofcommunication.Theconvenienceandefficiencyofelec
Yourusualteacherhaslosthisvoiceand________Iamtakinghisplacetoday.
A、Theirnewhouseiswarm,butnotcomfortable.B、Theformerhouseisclosetoadepartmentstore.C、Theyheldapartytoshowt
Aroundtheworld,rumblesofcomplaintaboutglobalizationaregrowinglouder—andtheserumblesarenotconfinedtoactivistmov
随机试题
SharonKeatingwasworriedaboutherkidswhenshegotadivorce.Herdaughtersays,"Iwasfeeling...likedownandsadandeve
在炎热的环境中,下列生理反应有利于保持体温相对恒定的是()。
下列发热性疾病中,不伴有单纯疤疹的是
刘某在公众号“案例观止”上署名“法的囚徒”发表题为“法院如何做出强制利润分配.最高法院案例”一文。某出版社的《最高法院公司法案例集》收录该文,某教材编写单位将该文反映的案例作为典型案例编入《公司法案例教程》,“法治纵横”公众号转载了该文。下列哪一说法是正确
用贝克曼梁测定弯沉时,测得的结果必须进行温度修正。()
铁路行车基本闭塞法有自动闭塞和()两种。
按我国城镇道路技术标准要求,()必须设置中央分隔带。
某投资者L预期甲股票价格将会下跌,于是与另一投资者Z订立期权合约,合约规定有效期限为三个月,L可按每股10元的价格卖给Z甲股票5000股,期权价格为0.5元/股。影响期权价格(期权费)的因素是()。
(2002年考试真题)对各项财产物资的盘点结果编制并据以调整账面记录的原始凭证是()。
北伐战争
最新回复
(
0
)