【名师带你背单词】TED Talk精选《如何在其他星球寻找生命》Part3/3,曼拓教育微信公众号文章

Donovan老师

今天我们来看看这篇在PTE听力中常考的天文类文章。

How we'll find life on other planets （Part 3/3）

相关学科：天文学

Source：

http://www.ted.com/talks/aomawa_shields_how_we_ll_find_life_on_other_planets

Donovan老师

下面带着对这些单词和短语的理解，尝试读一读下面的原文，看看是不是容易理解多了呢？

Ice on a planet's surface is also important for climate. Ice absorbs longer, redder wavelengths of light, and reflects shorter, bluer light. That's why the iceberg in this photo looks so blue. The redder light from the sun is absorbed on its way through the ice. Only the blue light makes it all the way to the bottom. Then it gets reflected back to up to our eyes and we see blue ice. My models show that planets orbiting cooler stars could actually be warmer than planets orbiting hotter stars. There's another contradiction --that ice absorbs the longer wavelength light from cooler stars, and that light, that energy, heats the ice. Using climate models to explore how these contradictions can affect planetary climate is vital to the search for life elsewhere.

And it's no surprise that this is my specialty. I'm an African-American female astronomer and a classically trained actor who loves to wear makeup and read fashion magazines, so I am uniquely positioned to appreciate contradictions in nature and how they can inform our search for the next planet where life exists.

My organization, Rising Stargirls, teaches astronomy to middle-school girls of color, using theater, writing and visual art. That's another contradiction -- science and art don't often go together, but interweaving them can help these girls bring their whole selves to what they learn, and maybe one day join the ranks of astronomers who are full of contradictions, and use their backgrounds to discover, once and for all, that we are truly not alone in the universe.

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