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
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what migh
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what migh
admin
2013-01-12
39
问题
The discovery of the Antarctic not only proved one of the most interesting of all geographical adventures, but created what might be called "the heroic age of Antarctic exploration". By their tremendous heroism, men such as Shackleton, Scott, and Amundsen caused a new continent to emerge from the shadows, and yet that heroic age, little more than a century old, is already passing. Modern science and inventions are revolutionizing the techniques of former explorers, and, although still calling for courage and feats of endurance, future journeys into these icy wastes will probably depend on motor vehicles equipped with caterpillar traction rather than on the dogs that earlier discoverers found so invaluable.
Few realize that this Antarctic continent is almost equal in size to South America, and enormous field of work awaits geographers and prospectors. The coasts of this continent remain to be accurately charted, and the mapping of the whole of interior presents formidable task to the cartographers who undertake the work. Once their labors are completed, it will be possible to prospect the vast natural resources which scientists believe will furnish one of the largest treasure hoards of metals and minerals the world has yet known, an almost inexhaustible sources of copper, coal, uranium, and many other ores will become available to man. Such discoveries will usher in an era of practical exploitation of the Antarctic wastes.
The polar darkness which hides this continent for the six winter months will be defeated by huge batteries of light, and make possible the establishing of air fields for the future intercontinental air service by making these areas as light as day. Present flying routes will completely change, for the Antarctic refueling bases will make flight fiom Australia to South America comparatively easy over the 5,000 miles journey.
The climate is not likely to offer an insuperable problem, for the explorer Admiral Byrd has shown that the climate is possible even for men completely untrained for expeditions into those frozen wastes. Some of his parties were men who had never seen snow before, and yet he records that they survived the rigors of the Antarctic climate comfortably, so that, provided that the appropriate installations are made, we may assume that human beings from all countries could live there safely. Byrd even affirms that it is probably the most health climate in the world, for the intense cold of thousands of years has sterilized this continent, and rendered it absolutely germfree, with the consequences that ordinary and extraordinary sicknesses and disease from which man suffers in other zones with different climates are here utterly unknown.
There exist no problems of conservation and preservation of food supplies, for the latter keep indefinitely without any signs of deterioration; it may even be that later generations will come to regard the Antarctic as the natural storehouse for the whole world. Plans are already on foot to set up permanent bases on the shores of this continent, and what so few years ago was regarded as a "dead continent" now promises to be a most active centre of human life and endeavor.
What is planned for the continent?
选项
A、Building dams along the coasts.
B、Setting up several summer resorts along the coasts.
C、Mapping the coast and the whole territory.
D、Setting up permanent bases on the coasts.
答案
D
解析
文章第5段“Plans are already on foot to set up permanent bases on the shores of this continent. . . ”中可知,人类计划做的事情是在南极建立永久基地,故选D。
转载请注明原文地址:https://jikaoti.com/ti/DYHYFFFM
0
考博英语
相关试题推荐
Effortstoreachtheinjuredmenhavebeen______becauseofasuddendeteriorationinweatherconditions.
To______thestructuralimbalancesinthebudget,andalsointheeconomytheAdministrationhasgivenitssupporttoaconstit
______hissister,Jackisquietanddoesnoteasilymakefriendswithothers.
Unlessastronomers______theirsearchforextraterrestriallifetostarsasexceptionalastheSun,theyarewastingmuchofth
Anxietyisbelievedto______diabetesbyraisinglevelsofthestresshormonecortisolwhichregulatesinsulinandblood-sugar
Althoughthereareoccasionaloutbreaksofgunfire,wecanreportthattherebellionhasinthemainbeen______.
Perhapsthemostinterestingthingaboutthephenomenonoftaboobehaviorishowitcanchange【1】theyearswithinthesamesocie
Theymadedetailedinvestigationsto______themselveswiththeneedsoftheruralmarket.
Windproducesfromtheunevenheatingoftheatmosphereandirregularitiesintheearth’ssurface.Theairmovementbetweenthes
IfatsomepointtheydoimportChristianity,itis______thatitwillbeabsorbedandadapted______strengthenthecontinuingcor
随机试题
A、起自颞窝和颞深筋膜深面,止于喙突和下颌支前缘直至下颌第三磨牙远中的咀嚼肌B、起自颧弓深面,垂直向下止于下颌支上部和喙突的咀嚼肌C、起自上颌骨颧突和颧弓下缘的前2/3,向下后行,止于咬肌隆突和下颌支外侧面下半部的咀嚼肌D、起于翼外
当山坡上的填方路基有斜坡下滑倾向时应采用()。【2013年真题】
()是指依法设立的从证券服务业务的法人机构。
下列各项中,符合契税纳税义务发生时间和完税时间规定的有()。
【说明】网络的拓扑结构如下图所示,内部网络使用IP地址段192.168.0.0/24,并通过路由器Rl接入到Internet,该路由器支持NAT功能。R1的外网IP地址为123.116.10.66,内网IP地址是192.168.0.100,MAC地址为0
函数y=loga(x+3)-1(a>0,a≠1)的图象恒过定点A,若点A在直线mx+ny+1=0上,其中mn>0,则的最小值为______。
建设有中国特色社会主义的重要理论根据包括()。
现代社会人与人之间变得越来越冷漠了。有以下三个观点:一是现在很多人对有些事漠不关心,认为不关我事,何必多管闲事;二是现在很多人由于工作压力很大,没有时间和精力去与他人沟通交往;三是邻里之间没有之前那样和睦,人际关系变得疏远。邻里文化好像有所缺失。请
[A]Thisinterpretationwaschallengedinarecentpaper.Afterreviewingtheresearchliterature,theauthorsconcludedthatna
设有如下一段程序:PrivateSubCommand1_Click()StaticaAsVarianta=Array("one","two","three","four","five")Printa(3)EndSub针对上述事件过
最新回复
(
0
)