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.

　　2. 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.

　　3. 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

　　答案与题解：

　　 A 文章第三段的第一句是问题的答案。

　　 B 第六段的大意是，尽管这种新型燃料电池还不能产牛很多电能，但是，它能够产生电能的事实就已经是很大的成就了。因而激动人心。所以只有B是正确答案。

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