科学家南极绘制山脉地图

短语讲解：

1. At Columbia University’s Lamont-Doherty Earth Observatory, a short drive north of New York City, more than 300 scientists and researchers are delving into the geophysical mysteries of our planet from virtually every angle.

delve into钻研,深入研究
例句：We should not delve too deeply into this painful matter.
我们不应该过分深究这件痛苦的事。

2. So there are all kinds of mysteries that are underneath the ice sheet that you can’t see without sending out radar energy.

send out发送; 发出
例句：All the stars send out light and heat.
所有的恒星都会发出光和热。

3. There is no visible evidence of these peaks and valleys beneath the unbroken surface of the ice field, and Bell was determined to learn more about them.

be determined to决定; 下决心
例句：A s he was not reconciled to his defeat, he was determined to try again in the next contest.
他不甘心这次失败,决心在下次比赛中再作努力。

4. The resulting images, which look very much like dental X-rays, showed the mountains, and more.

look like看起来与(某人或某物)相像〔相似〕
例句：He looks like a scholar.
他看上去像个学者。

5. But the ice sheet acts like a blanket and captures the heat of the earth coming up.

come up上来; 走近; 升起; 长出来; 响起, 刮起
例句：The sky was dark blue and clear when the moon came up.
月亮出来时, 天空是深蓝色的, 非常晴朗。

6. We really hadn’t thought about what would happen to water and valleys when you drop a four and a half kilometer thick ice sheet on top of it and that you’d actually end up driving the water up the hill.

happen to发生在…身上
例句：If anything happens to the machine, please let me know.
要是机器出了毛病, 请告诉我。
end up结束; 最终成为〔变得〕
例句：If you don't work hard, you'll end up nowhere.
如不努力工作, 你就一事无成。

7. “Which is a kind of a backwards way of thinking about things.”

think about考虑…; 捉摸…
例句：I should like to think about your suggestion before I give a definite reply.
我想先考虑一下你的建议, 然后给你一个明确的答复。

8. And they move on their bottoms. So what the bottom of the ice sheet is made of really matters.

move on继续前进, 继续进行, 往前走
例句：We talked about these for a while and then moved on to another house.
我们谈了一会儿之后, 就前往另一家去了。
make of用…做成
例句：The table is made of wood.
桌子是木制的。