美国有线新闻 CNN 科学家在南极发现地球陆地最低点

 

What body of water is located along the border between Israel and Jordan? The Dead Sea, The Sea of Galilee, The Gulf¹ of Aqaba, of the Red Sea. It's the salty Dead Sea that's between Israel and Jordon and it has the lowest elevation² on Earth's surface.

And though researchers say they found a place that's considerably³ lower than that, setting a new record for the deepest point on land. You can't really visit it and you can't really even see it. The Denman Glacier⁴ is located in Eastern Antarctica. Glaciologists at the University of California were ma?pping it out using new technology. They were combining radar⁵ measurements, satellite information, and snow accumulation data and they say this allowed them to locate a valley that's hidden underneath⁶ the ice sheet.

The trough is reportedly about 62 miles long and 12 and a half miles wide but here's the kicker —it's deep. Researchers say it plunges⁷ two miles below sea level which it would make it more than a mile deeper than the bottom of the Dead Sea. Of course, the ocean's deepest trenches⁸ are much lower than this. But what we're talking about is the lowest point on land. And the Antarctic trough apparently⁹ has no ocean water. Scientists say it's filled with ice that flows toward the Antarctic coast. They're hopeful that their research will help scientists study the continent for decades to come.

下列哪个水域位于以色列和约旦边界？死海、加利利海、亚喀巴湾还是红海？含盐的死海位于以色列与约旦之间，是地球表面海拔最低点。

虽然研究人员表示，他们发现了一个海拔大幅低于死海的地方，创造了陆地最低点的新纪录。但是大家并不能去那里游览，你们甚至看不到那里。登曼冰川位于南极洲东部。加州大学的冰河学家利用新技术将该冰川绘制出来。他们将雷达测量、卫星资料和积雪数据相结合，这使他们得以确定隐藏在冰川之下的峡谷的位置。

据报道，这个峡谷约62英里长，12.5英里宽，但关键的是——它很深。研究人员表示，该峡谷比海平面低2英里，这使其比死海海底还要低1英里多。当然，海洋最深的海沟要比这一深度低很多。但我们现在说的是陆地上的最低点。显然，这个南极峡谷内没有海水。科学家表示，该峡谷内全是向南极海岸方向运动的浮冰。他们希望他们的研究能在未来几十年帮助科学家研究南极大陆。

1 gulf   

n.海湾；深渊，鸿沟；分歧，隔阂

参考例句：

• The gulf between the two leaders cannot be bridged.两位领导人之间的鸿沟难以跨越。
• There is a gulf between the two cities.这两座城市间有个海湾。

2 elevation   

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。

3 considerably   

adv.极大地；相当大地；在很大程度上

参考例句：

• The economic situation has changed considerably.经济形势已发生了相当大的变化。
• The gap has narrowed considerably.分歧大大缩小了。

4 glacier   

n.冰川，冰河

参考例句：

• The glacier calved a large iceberg.冰河崩解而形成一个大冰山。
• The upper surface of glacier is riven by crevasses.冰川的上表面已裂成冰隙。

5 radar   

n.雷达，无线电探测器

参考例句：

• They are following the flight of an aircraft by radar.他们正在用雷达追踪一架飞机的飞行。
• Enemy ships were detected on the radar.敌舰的影像已显现在雷达上。

6 underneath   

adj.在...下面，在...底下；adv.在下面

参考例句：

• Working underneath the car is always a messy job.在汽车底下工作是件脏活。
• She wore a coat with a dress underneath.她穿着一件大衣，里面套着一条连衣裙。

7 plunges   

n.跳进，投入vt.使投入，使插入，使陷入vi.投入，跳进，陷入v.颠簸( plunge的第三人称单数 )；暴跌；骤降；突降

参考例句：

• Even before he plunges into his program, he has his audience in his pocket. 他的节目甚至还没有出场，就已控制住了观众。 来自《简明英汉词典》
• 'Monseigneur, he precipitated himself over the hill-side, head first, as a person plunges into the river.' “大人，他头冲下跳下山坡去了，像往河里跳一样。” 来自英汉文学 - 双城记

8 trenches   

深沟，地沟( trench的名词复数 )； 战壕

参考例句：

• life in the trenches 第一次世界大战期间的战壕生活
• The troops stormed the enemy's trenches and fanned out across the fields. 部队猛攻敌人的战壕，并在田野上呈扇形散开。

9 apparently   

adv.显然地；表面上，似乎

参考例句：

• An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
• He was apparently much surprised at the news.他对那个消息显然感到十分惊异。