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 Shakleton, 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 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 and hardly comparable.
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 maping 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 one 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 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 healthy climate in the world, for the intense cold of thousands of years has sterilize this continent, and rendered it absolutely germfree, with the consequences that ordinary and extraordinary sickness 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 ago was regarded as a dead continent now promises to be a most active center of human life and endeavor.
1.When did man begin to explore the Antarctic?
A.About 100years ago.
B.In this century.
C.At the beginning of the 19th century.
D.In 1798.
2.What must the explorers be, even though they have modern equipment and techniques?
A.Brave and tough
B.Stubborn and arrogant.
C.Well-liked and humorous.
D.Stout and smart.
3.The most healthy climate in the world is___.
A.in South America.
B.in the Arctic Region.
C.in the Antarctic Continent.
D.in the Atlantic Ocean.
4.What kind of metals and minerals can we find in the Antarctic?
A.Magnetite,coal and ores.
B.Copper,coal and uranium.
C.Silver,natural gas and uranium.
D.Aluminum,copper and natural gas.
5.What is planned for the continent?
A.Building dams along the coasts.
B.Setting up several summer resorts along the coasts.
C.Mapping the coast and whole territory.
D.Setting up permanent bases on the coasts.
答案:BDCBA
人教版八年级下册英语Unit 1 Section B(2a-2e)课时练答案
人教版七年级下册英语Unit 11第三课作业本1答案
人教版七年级下册英语Unit 12第一课作业本2答案
人教版七年级下册英语Unit 9第五课作业本1答案
人教版七年级下册英语Unit 10第三课作业本2答案
人教版七年级下册英语Unit 6第五课作业本2答案
人教版七年级下册英语Unit 7第一课作业本1答案
人教版七年级下册英语Unit 8第五课作业本2答案
人教版七年级下册英语Unit 12第二课作业本1答案
人教版七年级下册英语Unit 9第三课作业本1答案
人教版八年级下册英语Unit 2 Section B(2a-2e)课时练答案
人教版七年级下册英语Unit 8第四课作业本1答案
人教版七年级下册英语Unit 6第四课作业本1答案
人教版八年级下册英语Unit 2 Section A(1a-2d)课时练答案
人教版八年级下册英语Unit 2 Section A(3a-4c)课时练答案
人教版七年级下册英语Unit 7第五课作业本1答案
人教版七年级下册英语Unit 10第五课作业本2答案
人教版七年级下册英语Review of units 1-6作业本1答案
人教版七年级下册英语Unit 12第三课作业本2答案
人教版八年级下册英语Unit 1单元复习课课时练答案
人教版七年级下册英语Unit 12第五课作业本2答案
人教版七年级下册英语Unit 10第一课作业本2答案
人教版七年级下册英语Unit 6第三课作业本2答案
人教版七年级下册英语Unit 7第四课作业本2答案
人教版八年级下册英语Unit 1 Section B(3a-Self Check)课时练答案
人教版七年级下册英语Review of units 7-12作业本2答案
人教版七年级下册英语Unit 9第一课作业本1答案
人教版八年级下册英语Unit 1 Section A(3a-4c)课时练答案
人教版七年级下册英语Unit 6第二课作业本1答案
人教版七年级下册英语Unit 9第四课作业本2答案
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |