首页
登录
职称英语
The discovery of the Antarctic not only proved one of the most interesting of
The discovery of the Antarctic not only proved one of the most interesting of
游客
2023-12-20
32
管理
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 Shckleton, 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 chartered, and the mapping of the whole of the interior presents a 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 on the of the largest treasure hoards of metals and minerals the world has yet known, and 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 inter-continental air services by making these areas as light as day. Present flying routes will be completely changed, for the Antarctic refueling bases will make flights from 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 party 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 healthy 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 diseases 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 was regard as a "dead continent" now promises to be a most active center of human life and endeavor. (517) [br] What kind of metals and minerals can we find in the Antarctic?
选项
A、Magnesite, coal and oil.
B、Copper, coal and uranium.
C、Silver, natural gas and uranium.
D、Aluminum, copper and natural gas.
答案
B
解析
事实细节题。在第二段倒数第二、三行中,我们可以知道何种金属可以在南极找到:...and almost in- exhaustible sources of copper,coal,uranium,and many other ores will become available to man.
转载请注明原文地址:https://tihaiku.com/zcyy/3290139.html
相关试题推荐
Formethemostinterestingthingaboutasolitarylife,andminehasbeent
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheevo
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheevo
Beforeconsideringthisquestionitisinterestingtoreviewbrieflytheevo
[originaltext] WorldTradeOrganizationmembersapprovedaplanonSundaytoe
[originaltext] WorldTradeOrganizationmembersapprovedaplanonSundaytoe
[originaltext] WorldTradeOrganizationmembersapprovedaplanonSundaytoe
ThediscoveryoftheAntarcticnotonlyprovedoneofthemostinterestingof
ThediscoveryoftheAntarcticnotonlyprovedoneofthemostinterestingof
ThediscoveryoftheAntarcticnotonlyprovedoneofthemostinterestingof
随机试题
Whatisthefirstproblemwiththeman’sreservation?[br][originaltext]M:Hi.
Itwasanearlymorninginsummer.Inthestreets,sleepyeyedpeopleweremo
Punctualitymeansobservingregularorappointedtime.Amanwhogetsupat
目前治疗鼻咽癌首选的方法是A.手术治疗 B.化学药物治疗 C.基因治疗 D
合同订立工作程序中不含对投标者质量的考察内容的是()。A、投标者资格预审B、
阳明潮热,可出现( ) A.身热不扬 B.高热不退 C.午后低热 D.
二尖瓣脱垂A.舒张期奔马律 B.二尖瓣开放拍击音 C.心包叩击音 D.收
棚式明洞的说法中,错误的是()。A.棚式明洞由顶盖和内外边墙组成 B.能承受较
主诉:女性,54岁,右上腹痛3个月,发现上腹部包块1个月。 病史:患者于3个月
复杂部分性发作的病损在 A.中央前回 B.黑质-纹状体 C.颞叶 D.枕
最新回复
(
0
)