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【Earth&Sky】迄今太空中发现的最大分子
听力简介:
听写填空,只写填空内容,不抄全文,4个单词/词组+1个句子,不用写标号~
Astronomers have found a large and very special type of molecule in space. It's C60, a molecule made of 60 carbon atoms. It's also called a buckyball or "fullerene" for Buckminster Fuller – this molecule [---1---] Bucky Fuller's geodesic domes.
It looks pretty much exactly the same as one of these black and white soccer balls in terms of the structure, but on a [---2---].
That's the astronomer Jan Cami, at the University of Western Ontario and California's SETI Institute. [---3---]– it's about a [---4---] in size – or about one ten-thousandth the thickness of a human hair. They found it by examining light from the vicinity of a planetary nebula – a site of expanding gases surrounding an aging star. Cami said buckyballs were first identified in laboratories here on Earth in the 1980s, since then they've triggered the new field of nanotechnology.
Since then there's been an entirely new research field that's built upon the properties of these buckyballs because they have very unique physical and chemical and electrical properties.
Dr.Cami [---5---] that buckyballs might have been abundant on early Earth, and because they’re so complex, they might even have helped kickstart life on Earth.
今天听写的句子只是半句哦~~ ^_^
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