Earth&Sky:纳米技术有助植物知识
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.
【视听版科学小组荣誉出品】
- 相关热点:
- 留学新加坡