試題
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.
答案與題解:
1. C A和D明顯不是正確答案。B不是正確選擇,因?yàn)橹挥挟?dāng)這種新的燃料電池被大規(guī)模生產(chǎn)時(shí),才有可能實(shí)現(xiàn)用甜飲料給手機(jī)提供電能。
2. A 文章第三段的第一句是問(wèn)題的答案。
3. C 該段第二句“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是正確選擇。
4. B 第六段的大意是,盡管這種新型燃料電池還不能產(chǎn)牛很多電能,但是,它能夠產(chǎn)生電能的事實(shí)就已經(jīng)是很大的成就了。因而激動(dòng)人心。所以只有B是正確答案。
5. D 文章的最后一段指出了這種新型燃料電池的優(yōu)點(diǎn),即A、B、C所述內(nèi)容。最后一句說(shuō),科學(xué)家預(yù)計(jì),在不到三年的時(shí)間里這種新技術(shù)便可在大眾的流行產(chǎn)品中使用。所以D是正確選擇。
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.
答案與題解:
1. C A和D明顯不是正確答案。B不是正確選擇,因?yàn)橹挥挟?dāng)這種新的燃料電池被大規(guī)模生產(chǎn)時(shí),才有可能實(shí)現(xiàn)用甜飲料給手機(jī)提供電能。
2. A 文章第三段的第一句是問(wèn)題的答案。
3. C 該段第二句“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是正確選擇。
4. B 第六段的大意是,盡管這種新型燃料電池還不能產(chǎn)牛很多電能,但是,它能夠產(chǎn)生電能的事實(shí)就已經(jīng)是很大的成就了。因而激動(dòng)人心。所以只有B是正確答案。
5. D 文章的最后一段指出了這種新型燃料電池的優(yōu)點(diǎn),即A、B、C所述內(nèi)容。最后一句說(shuō),科學(xué)家預(yù)計(jì),在不到三年的時(shí)間里這種新技術(shù)便可在大眾的流行產(chǎn)品中使用。所以D是正確選擇。