enzymen.酶 electroden.电极platinumn.铂,白金 membranen.膜,薄膜
polymern.聚合物 biodegradableadj.能进行生物降解的
protonn.质子
1. According to the first paragraph,when can we share our sweet drinks with our cell phones?
B When the technology of producing a new type of fuel cell appears.
D When the technology of mass producing cell phones appears.
A They had trouble keeping enzymes in fuel cells active.
C They had trouble producing fresh enzymes.
3. According to Paragraph 5,electrons are released
B when glucose from a sugary liquid goes through the enzyme.
D when the enzyme oxidizes the sugary liquid that goes through a pocket.
A Their limitless power generation capacity is amazing.
C Their limited power generation capacity is the result of great efforts.
5. According to the last paragraph,what is NOT true of the new fuel cells?
B The new fuel cells are environment friendly.
D It will take some time before the new fuel cells can be used in popular products.
1. C A和D明显不是正确答案。B不是正确选择,因为只有当这种新的燃料电池被大规模生产时,才有可能实现用甜饮料给手机提供电能。
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