【Earth&Sky】森林具有提供可再生能源的潜力_英语听力练习mp3下载-自然-沪江听力酷

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【Earth&Sky】森林具有提供可再生能源的潜力

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~

Today we're speaking with Janaki Alavalapati, head of Virginia Tech's Department of Forestry. He said that forest biomass – small diameter trees and brush cleared from forests – can be used to create liquid fuel.

Janaki Alavalapati: [---1---] Every piece of biomass can be used for one type or another of liquid energy sources.

[---2---]

Janaki Alavalapati: If you put one unit of energy in you are getting approximately five units of energy out from forest biomass-based liquid fuels. [---3---]

And – in contrast to corn-based ethanol – fuel made from forest products isn’t created from a human food source.

Janaki Alavalapati: Forest biomass does not attract food versus fuel debates that we recently had across the world.

[---4---]

Our thanks today to the American Forest Foundation, leading the way in conservation and education.

This is E&S, a clear voice for science.

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