试题
, J+ \/ e/ Q8 h) V 1. According to the first paragraph,when can we share our sweet drinks with our cell phones?+ V/ W" c3 O, r6 y
A When enzymes can be commonly found in living ceils.
n7 |- n! R% ]7 K$ d( B4 R B When the technology of producing a new type of fuel cell appears.
3 _& f! Y' H& _. L1 K C When the technology of a new type of fuel cell is suitable for mass production.- s" w5 l- ^% ]8 n( ~. c( O/ m
D When the technology of mass producing cell phones appears.
3 u7 P- C2 `; ~. q. ` 2. What trouble did Minteer and Klotzhach have in their research?! R/ j% b! Y: }( ^3 G8 I: I
A They had trouble keeping enzymes in fuel cells active.
: w; f( ]# N9 K3 d: ]; Z$ S4 B9 [ B They had trouble keeping biological cells active.
7 C! Y8 m- y+ ^9 J& o4 n' r C They had trouble producing fresh enzymes.- c; h+ f) }8 t0 u- b9 e' d
D They had trouble finding mechanism for producing enzymes.
' [: A6 e3 q# J4 n$ F# z 3. According to Paragraph 5,electrons are released
: m+ i" e6 a% j# o A A when bags of enzyme are embedded in the new fuel cell.
; l d1 x& Y. J1 p' { B when glucose from a sugary liquid goes through the enzyme.! p/ {+ e: ^3 _+ `
C when the enzyme oxidizes the glucose from a sugary liquid that goes through
O0 s* e8 {9 x6 v P) l, n! f a pocket.2 U7 i; u* L9 W0 T4 T; U
D when the enzyme oxidizes the sugary liquid that goes through a pocket.5 a w( U2 b! o ]9 g
4. What is exciting about the new fuel cells?+ n7 r \, _4 g6 k
A Their limitless power generation capacity is amazing.
, P$ u+ X6 c1 l/ E% P B Their limited power generation capacity is a good beginning.$ D4 V) b, e8 l/ s) D* {: w6 @
C Their limited power generation capacity is the result of great efforts.5 R+ D C# z Q1 d7 i0 ?" m* y
D Their limitless power generation capacity is a major accomplishment,
+ I' g, f# j& T/ W! k 5. According to the last paragraph,what is NOT true of the new fuel cells?8 U7 }7 `+ f! Y& {; ]
A The new fuel cells run on sugar that is easy to find.2 @! D* |8 ]# e
B The new fuel cells are environment friendly.
! i7 S# Z3 z, m# s C The new fuel cells are biologically degradable,
, x+ m% K, ~1 n7 a D It will take some time before the new fuel cells can be used in popular products.7 V6 u) t. {1 ?, q- z7 E
答案与题解:" J5 p, {6 B) q( H& m0 a
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。
$ w6 z C5 J( v/ x+ B. R0 J+ l* Z 2. A 文章第三段的第一句是问题的答案。
( e0 J0 X- v! q! z7 J' X 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。
* g: u. i2 ?( z" T 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 g# w$ j2 V& R u; h8 ^+ _ 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> |