聽寫填空,只寫填空內容,不抄全文,5個左右的句子,不用寫標號,注意標點,口語中因結巴等問題造成的重復單詞只寫一遍~

Joe Powell: There's no single silver bullet in terms of a new renewable energy that one can't simply flip a switch and say, 'we’re going to do this now. We're going to go renewable.'

You're listening to Joe Powell, Chief Scientist of Chemical Engineering at Shell. Dr. Powell researches ways to develop renewable energy. [---1---]

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Wind power, said Powell, is also coming on strong.

Joe Powell: Wind is very competitive today, where there is wind and where it is environmentally acceptable.

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ES, a clear voice for science. We’re at Es. Org.

【視聽版科學小組榮譽出品】
He said that while fossil fuels dominate the world's energy of today, he sees a shift coming to energy like biofuels, wind and solar. It's already a portion of the energy spectrum today, and we're looking in the 50 to 100-year type of time horizon for when that would become a dominant source. Powell said research is being done on biofuel that is not based on food people eat, like corn or sugar cane. They would use, for instance, the corn stalk rather than the corn kernels, and then converting the molecular structure there into a biofuel that can go into your existing car and fuel tank without a lot of change in infrastructure. Another promising renewable, said Powell, is solar energy, which is virtually unlimited in supply from the sun.