试题
0 s( k" U. @$ E: F. A; o2 w3 v 1. According to the first paragraph,when can we share our sweet drinks with our cell phones?
$ S& [( @ V/ R- W* l; s% o; R A When enzymes can be commonly found in living ceils.
) U0 v, m6 T$ e. [/ k0 I B When the technology of producing a new type of fuel cell appears.
# O. B+ M" `$ M; k0 q7 H4 P C When the technology of a new type of fuel cell is suitable for mass production.
6 ^; X+ o* y6 ?0 j) {5 h8 r5 d D When the technology of mass producing cell phones appears.% V/ _3 r8 }. h! W' \. e. ?# K
2. What trouble did Minteer and Klotzhach have in their research?
4 X+ s' h8 c: S, D* t A They had trouble keeping enzymes in fuel cells active., F) {8 K' @. T* } v! `
B They had trouble keeping biological cells active.# Z0 v$ K4 _$ Z2 e: E
C They had trouble producing fresh enzymes.9 ~- [% l8 u( i0 ?; E5 y6 H1 a1 ^, x& x
D They had trouble finding mechanism for producing enzymes.
# M! O& g; ~2 i. u 3. According to Paragraph 5,electrons are released! o/ p3 g# |5 p3 l. f) m
A when bags of enzyme are embedded in the new fuel cell.9 @/ g/ ~! W& U$ M
B when glucose from a sugary liquid goes through the enzyme.4 i6 L+ a. n0 ?0 L, f- W, ]
C when the enzyme oxidizes the glucose from a sugary liquid that goes through
& C6 y( P( M1 r | a pocket.8 v+ N4 z) f5 r' c! A) Y
D when the enzyme oxidizes the sugary liquid that goes through a pocket.+ }4 d. |! O. T% z7 g
4. What is exciting about the new fuel cells?" p7 M# s, }; _
A Their limitless power generation capacity is amazing.
$ A8 f* h3 X- U t* O/ E B Their limited power generation capacity is a good beginning.& F( A- h' x8 [2 h8 v4 F- ]# r: ^" u
C Their limited power generation capacity is the result of great efforts.
. Y& v# O( z2 y% y D Their limitless power generation capacity is a major accomplishment,) L' @$ m- X* @
5. According to the last paragraph,what is NOT true of the new fuel cells?
- N& s; Q3 T' ~& |; U0 ^8 v A The new fuel cells run on sugar that is easy to find.
. ^& n& |- n! E- k& H3 G+ _. u B The new fuel cells are environment friendly./ _5 p9 S0 C8 f1 J: n
C The new fuel cells are biologically degradable,# ^9 T6 q; X, O+ Q2 ?, B
D It will take some time before the new fuel cells can be used in popular products.
3 F4 R! S5 d. {" v 答案与题解:, C9 S) u9 G( w
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。% p/ o# x3 L3 \+ j" I; w% e
2. A 文章第三段的第一句是问题的答案。: M9 A2 v# x2 x9 k
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。
" J3 u# t( u8 l0 L 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。0 g6 X3 F. ^( N7 V& X7 h
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。</p> |