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．
C When the technology of a new type of fuel cell is suitable for mass production．
D When the technology of mass producing cell phones appears．
2． What trouble did Minteer and Klotzhach have in their research?
A They had trouble keeping enzymes in fuel cells active．
B They had trouble keeping biological cells active．
C They had trouble producing fresh enzymes．
D They had trouble finding mechanism for producing enzymes．
3． According to Paragraph 5，electrons are released
A when bags of enzyme are embedded in the new fuel cell．
B when glucose from a sugary liquid goes through the enzyme．
C when the enzyme oxidizes the glucose from a sugary liquid that goes through
a pocket．
D when the enzyme oxidizes the sugary liquid that goes through a pocket．
4． What is exciting about the new fuel cells?
A Their limitless power generation capacity is amazing．
B Their limited power generation capacity is a good beginning．
C Their limited power generation capacity is the result of great efforts．
D Their limitless power generation capacity is a major accomplishment,
5． According to the last paragraph，what is NOT true of the new fuel cells?
A The new fuel cells run on sugar that is easy to find．
B The new fuel cells are environment friendly．
C The new fuel cells are biologically degradable,
D It will take some time before the new fuel cells can be used in popular products．
答案与题解：
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。
2． A 文章第三段的第一句是问题的答案。
3． C 该段第二句“When glucose from a sugary liquid penetrates a pocket，the enzyme oxidizes it，releasing electrons and proton”中的it指代glucose，而不是a sugary liquid，因 此C是正确选择。
4． 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。
5． D 文章的最后一段指出了这种新型燃料电池的优点，即A、B、C所述内容。最后一句说，科学家预计，在不到三年的时间里这种新技术便可在大众的流行产品中使用。所以D是正确选择。
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