So far，the new fuel cells dont produce much power，but the fact that they work at all is exciting，says Paul Kenis，a chemical engineer at the University of Illinois2 at Urhana-Champaign3.Just getting it to work. Kenis says，is a major accomplishment.

　　Sugar-eating fuel cells could be an efficient way to make electricity.Sugar is easy to find. And the new fuel cells that run on it are biodegradable，so the technology wouldnt hurt the environment.The scientists are now trying to use different enzymes that will get more power from sugar.They predict that popular products may be using the new technology in as little as 3 years.

　　词汇：

　　enzyme/5enzaIm/n.酶 electrode/I5lektrEJd/n.电极platinum/5plAtinEm/n.铂，白金 membrane/5membrein/n.膜，薄膜

　　electron/I5lektrRn/n.电子 oxidize/5Cksi7daiz/v.氧化degrade/di5reid/v.降解 glucose/5lu:kEus/n.葡萄糖

　　polymer/5pClimE/n.聚合物 biodegradable/7baiEudi5reidEbl/adj.能进行生物降解的

　　microenvironment n.微环境 embed/im5bed/v.埋置，插入

　　proton/5prEutCn/n.质子

　　试题

　　1. According to the first paragraph，when can we share our sweet drinks with our cell phones?

　　A When enzymes can be commonly found in living ceils.

　　B When the technology of producing a new type of fuel cell appears.

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