【Earth&Sky】电网是如何变_英语听力练习mp3下载-科学-沪江听力酷

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【Earth&Sky】电网是如何变

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~

Carl Imhoff: We expect by 2050, in about 40 years, for the demand for electricity in the United States to double.

You're listening to Carl Imhoff, an electrical engineer with the Pacific Northwest National Laboratory, located in Washington State. [---1---] The goal is to modernize the electric grid in the U.S. into what's being called a 'smart grid.'

Carl Imhoff: [---2---] The grid that you look at today hasn't changed much really in the last 50 years.

[---3---] [---4---]

Carl Imhoff: For every unit of electricity that we get, we have to use three units of energy to get it, just because of the inefficiencies in combustion at the power plant and then moving it over the wires to where you can actually use it. So the quickest way for us to reduce energy use and to reduce energy imports, etc is to improve the efficiency of our overall end-use activities.

More about the 'smart grid' at our website, E&S is a clear voice for science.

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