【Earth&Sky】纳米技术有助植物知识_英语听力练习mp3下载-科学-沪江听力酷

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【Earth&Sky】纳米技术有助植物知识

听力简介：

听写填空,只写填空内容,不抄全文,3-5个句子,不用写标号,注意标点~

George Whitesides: Plants are what connect humankind to the sun and the ultimate source of energy. [---1---]

You're listening to Harvard chemist George Whitesides. [---2---]

George Whitesides: So with plants, there are an enormous range of very important and interesting problems to be solved, from perhaps improving the efficiency of photosynthesis, to improving food quality.

[---3---]

George Whitesides: A cell is not an empty bag but a very, very crowded environment with many complicated molecular machines, that is, collections of molecules that perform the business of the cell.

[---4---]

George Whitesides: Take the simplest plant and ask, how on Earth it could be that a relatively simple genome, usually somewhat smaller than ours, can instruct cells to become leaves and stems and flowers. And the honest answer is, we don’t know. [---5---]

All right, thanks today to the USDA (U.S. Department of Agriculture) National Research Initiative Program and Cornell University.

We're ES, a clear voice for science.

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