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
Since ancient times volcanoes have struck terror and wonder into the heart of man. Yet there is much more to volcanic activity t
Since ancient times volcanoes have struck terror and wonder into the heart of man. Yet there is much more to volcanic activity t
admin
2010-07-14
26
问题
Since ancient times volcanoes have struck terror and wonder into the heart of man. Yet there is much more to volcanic activity than the spectacular and awe-inspiring eruptions which sometimes cause great destruction. Comparatively few volcanoes are really dangerous and many of them are merely "noisy neighbors" to those who live nearby, causing only a slight nuisance. The share of good which volcanic force has brought to the world has too often been obscured by the violent outbursts of a few highly active ones.
In recent geological times, volcanoes have thrown up a multitude of islands dotted among the oceans and seas of the world which have added some hundreds of square miles to the land surface of the earth. Their real value to man, however, lies in the widely varying use to which they can be put. On the continental land masses volcanoes have raised mountains which have done much to increase what would otherwise have been a scanty rainfall. And the peoples of the tropics often have a lofty volcanic cone to thank for a more temperate climate.
The greatest benefit so far brought by volcanoes, however, has been the fertilizing effect of the lava and ash they eject. The soils formed by the decay of these volcanic products yield rich harvests in many countries. This fertility accounts for the amazing density of population in the neighborhood of many active craters. Forgetful of past catastrophes and heedless of the dangers that still threatens them, farmers have settled in large numbers round Etna and Vesuvius and volcanoes in Central America, Indonesia, the Philippines, and Japan, but they now run fewer risks than their forefathers. In the past few decades observation posts have been set up alongside the most dangerous craters, so that all impending eruption can be detected and warning given in good time.
For a long while no attempt was made to harness the enormous power generated by volcanoes. Even in quite subsidiary forms it was put only to such domestic use as heating and cooking, or was employed therapeutically in the form of hot mineral springs. Today the remarkable technical achievements of Iceland and Italy are serving as a spur to the harnessing of geothermal power for use in industry. In a few years’ time, other countries, particularly those with few other sources of natural power, are likely to be drawing more and more on the inexhaustible power 35 offered by volcanoes.
What are Iceland and Italy pioneering in?
选项
答案
the use of geothermal power in industry
解析
文中末段提到冰岛和意大利,说到它们在工业上利用地热。除此以外没提到其他内容,那答案也只能是这个。若能理解“serve as a spur”与“pioneer in”近义,就更容易找到答案。
转载请注明原文地址:https://jikaoti.com/ti/Y8FMFFFM
0
大学英语六级
相关试题推荐
FoodsThatFightDiseaseWithremarkableconsistency,recentresearchhasfoundthatadiethighinplant-basedfoods—fruit
Forcenturiesthegypsieshavelivedasaunfetteredpeoplewhotraveled【S1】______throughhalfthecountriesofthew
Icebergsareamongnature’smostspectacularcreations,andyetmostpeoplehaveneverseenone.Avagueairofmysteryenvelops
A、Studyforsomeprofession.B、Attendamedicalschool.C、Stayinbusiness.D、Sellhisshop.C本题有一定的迷惑性,对话中男性说“汤姆说计划卖掉商店,去上医学院是否
Thetownishavingsuchaboom_________________________(两年内可能扩大了一倍大小).
A、Coffee.B、Tea.C、Water.D、Coca-Cola.C4个选项分别是四种饮料,可以预测,问题是有关饮料方面的。在男士的话中出现了这样一个结构"nothinglikewater",什么也不如水好即他更喜欢的饮料是CWate
Mathematicalabilityandmusicalabilitymaynotseemonthesurfacetobeconnected,butpeoplewhohaveresearchedthesubject
A、Bydoinghomework.B、Byknowledgefrombooksandparents.C、Byhavingpocketmoneyfromtheirparents.D、Bysavingwhattheyh
ThedevelopmentofjazzcanbeseenaspartofthelargercontinuumofAmericanpopularmusic,especiallydancemusic.Inthetw
A、Targetthe18to26year-oldagegroup.B、Selltennisrackets.C、Carrymoreathleticshoes.D、Workoutamoreappealingslogan
随机试题
社会主义思想道德建设要以()为重点。
应重点关注的经营现金流出项目是
不能进入三羧酸循环被氧化的物质是
对于下列哪些人民法院作出的生效法律文书,当事人不得依照审判监督程序申请再审?()
有关数据显示,从2005年以来,广东高校毕业生自主创业的数量约占当年高校毕业生的1%~2%。以2008年为例,应届高校毕业生中选择自主创业的仅占1.2%。而在西方发达国家.这个数字为20%~30%。由此看来,西方发达国家的大学生更具有创业才能。以下哪一项正
静止是物质运动在一定条件下的稳定状态,其具体形式包括()
有如下程序:#includeusingnamespacestd;classA{public:A(inti){x=i;}voiddispa(){cout
【B1】【B6】
IamMikeWang,arealestateagent.I【B1】______tosellthishomeinjust15days.Iwouldlovetohelpyoubuyorsell.Proper
Itwasnotuntilhearrivedatthestation______herealizedhehadforgottenhisticket.
最新回复
(
0
)