首页
登录
职称英语
Since ancient times volcanoes have struck terror and wonder into the heart o
Since ancient times volcanoes have struck terror and wonder into the heart o
游客
2023-09-11
51
管理
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. [br] 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://tihaiku.com/zcyy/3003873.html
相关试题推荐
[originaltext]M:You’reawonderfulcook,Anna.Everythingissogood.W:Glad
[originaltext]M:You’reawonderfulcook,Anna.Everythingissogood.W:Glad
[originaltext]M:You’reawonderfulcook,Anna.Everythingissogood.W:Glad
[originaltext]M:You’reawonderfulcook,Anna.Everythingissogood.W:Glad
[originaltext]M:You’reawonderfulcook,Anna.Everythingissogood.W:Glad
[originaltext]M:Friday’sspeakerissupposedtobewonderful.Areyougoingt
[originaltext]M:Friday’sspeakerissupposedtobewonderful.Areyougoingt
[originaltext]M:Friday’sspeakerissupposedtobewonderful.Areyougoingt
Ithasbeenknownsinceancienttimesthatcertainplantsregularlyopenthe
Ithasbeenknownsinceancienttimesthatcertainplantsregularlyopenthe
随机试题
Antsfirstcapturedtheattentionofsoftwareengineersintheearly1990s.
WhichofthefollowingisNOTabranchofmacrolinguistics?A、Anthropologicallin
Butforalltheefforts,hedidnotsucceed.A、但是他所有的努力都失败了。B、但是尽管他再三努力,他还是没有获得成
Thereistimewhenjobseekerssimplywortelettersofapplication."Justp
色阶(Level)对话框中输入色阶的水平轴表示的是下列哪个数据?
下列说法中,不属于室内消火栓的维护管理内容的是()。A.检查消火栓和消防卷
增液汤的药物组成是.A.人参、麦冬、熟地黄 B.人参、天冬、生地黄 C.玄参
目前,各级政府部门明令施工企业用工必须加强管理的重点对象是( )。 A、自有
下列关于信托的种类划分的说法中,错误的是()。A.按信托关系建立的方式可划
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)