聽寫填空,只寫填空內(nèi)容,不抄全文,5-10句,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~
Hints:
sucrose
sugarcane
rapeseed
soya
States
Mike Goosey: Biofuels are derived from biomass, an organic raw material of living organisms and also their byproducts as well.
That's biochemist Mike Goosey with Shell, speaking to us from the Thornton Research and Technology Center near Cheshire in the UK. One of the major biofuels today is bioethanol.
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The other major biofuel is biodiesel.
Mike Goosey: [---4---]
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More at our website. I'm Jorge Salazar for ES, a clear voice for science. We're at
【視聽版科學小組榮譽出品】
It is made through a traditional fermentation process.
So very similar to the brewing or winery industry, it uses basically the sugar or sucrose from sugarcane.
It can take starch from corn or wheat.
And again the source, the biomass for that biofuel is commonly rapeseed, palm oil, soya bean as well in the States.
Many have questioned the use of food crops for fuel.
But, in a world whose climate is changing, biofuels are seen by many experts and consumers as a necessary next step.
It's not a silver bullet.
And there will be other technologies that will contribute to this.
But we do see biofuels as a significant contributor to reducing the CO2, and ultimately climate change that is facing us in the next 30, 40, 50 years.