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世界之最:海拔最高的大洲
添加时间:2025-05-16 15:53:08 浏览次数: 作者:未知
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  • The continent with the highest average elevation1 in the world is Antarctica.

    With an average elevation of approximately 2,500 meters (8,200 feet), Antarctica tops all other continents due to its massive ice sheet, averaging 1.6 km (1 mile) thick and exceeding 4.8 km (3 miles) in some areas. While land lies beneath the ice, the crust is depressed2 by the ice's weight; if melted, the land would rebound3.

    In contrast, Asia’s average elevation is about 1,000 meters (3,300 feet), and while it hosts Mount Everest (8,848 m), its overall elevation is lower. Antarctica’s high plateau, extreme cold, and arid4 conditions make it one of Earth’s harshest environments and a vital region for scientific research.

    南极洲的平均海拔约为2,500米(8,200英尺),是地球上最高的大洲。其高海拔主要源于覆盖大陆的巨厚冰盖,平均厚度达1.6公里(1英里),最厚处甚至超过4.8公里(3英里)。尽管冰盖下存在陆地,但冰层的重量使地壳下陷,若冰层融化,陆地海拔会回升。

    相比之下,亚洲平均海拔约1,000米(3,300英尺),虽拥有世界最高峰珠穆朗玛峰(8,848米),但整体海拔不及南极洲。南极洲的高原、极寒和干燥条件使其成为地球最极端的环境之一,也是科学研究的重要区域。

     单词标签: elevation  depressed  rebound  arid 


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    1 elevation [ˌelɪˈveɪʃn] bqsxH   第7级
    n.高度;海拔;高地;上升;提高
    参考例句:
    • The house is at an elevation of 2, 000 metres. 那幢房子位于海拔两千米的高处。
    • His elevation to the position of General Manager was announced yesterday. 昨天宣布他晋升总经理职位。
    2 depressed [dɪˈprest] xu8zp9   第8级
    adj.沮丧的,抑郁的,不景气的,萧条的
    参考例句:
    • When he was depressed, he felt utterly divorced from reality. 他心情沮丧时就感到完全脱离了现实。
    • His mother was depressed by the sad news. 这个坏消息使他的母亲意志消沉。
    3 rebound [rɪˈbaʊnd] YAtz1   第10级
    n. 回弹;篮板球 vi. 回升;弹回 vt. 使弹回
    参考例句:
    • The vibrations accompanying the rebound are the earth quake. 伴随这种回弹的振动就是地震。
    • Our evil example will rebound upon ourselves. 我们的坏榜样会回到我们自己头上的。
    4 arid [ˈærɪd] JejyB   第9级
    adj.干旱的;(土地)贫瘠的
    参考例句:
    • These trees will shield off arid winds and protect the fields. 这些树能挡住旱风,保护农田。
    • There are serious problems of land degradation in some arid zones. 在一些干旱地带存在严重的土地退化问题。

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