一道语法题prep07的106

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Officials at theUnited States Mint believe that the Sacagawea dollar coin will be used moreas a substitute for four quarters rather than for the dollar bill because itsweight, only 8.1 grams, is far less than four quarters, which weigh 5.67grams each.

(A) more as asubstitute for four quarters rather than for the dollar bill because itsweight, only 8.1 grams, is far less than

(B) more as a substitutefor four quarters than the dollar bill because it weighs only 8.1 grams, farlighter than

(C) as a substitutefor four quarters more than for the dollar bill because it weighs only 8.1grams, far less than

(D) as a substitutefor four quarters more than the dollar bill because its weight of only 8.1grams is far lighter than it is for

(E) as a substitutemore for four quarters rather than for the dollar bill because its weight, only8.1 grams, is far less than it is for

之前选的B, 看了答案选C, prep语法笔记说subtitute for .... more than for.....是平行的
但我还是不明白B怎了
我觉得题目表达的意思应该是他们believe S coin和4 quarters相比, S更能用来代替1 dollar bill, 因为S比4 quarter的重量轻.
C表达的意思是, S coin可以用作 4 quarters和 dollar bill的代替品, 但更多用于4 quarter, 因为它的结构是subtitute for .... more than for....., 和后面衔接不上, 后面比较的是S和4 quarter啊.


还是我压根对题目语意的理解就不对么?
求高人指点!!!!!

supsophy

b的语义有啥改变？

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supsophy 发表于 2013-11-1 19:57
b的语义有啥改变？

我刚又看了题目, 改了下我的理解.

supsophy

C: s coin 被更多的用作 是four quarters的替代品 （而不是）the dollar bill的替代品，因为s coin比 four quarters 轻得多。
because 原因状语中 it 优先指代主语 s coin

B中为比较对象错误  
还有 lighter than/ less than  比较对象为数字 选择后者。

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supsophy 发表于 2013-11-1 20:19
C: s coin 被更多的用作 是four quarters的替代品 （而不是）the dollar bill的替代品，因为s coin比 four  ...

我知道C的意思, 结构也完全正确.
但是C的句意和后面衔接不上啊. S比 4Q轻很多, 所以S用来代替4Q而不是用来代替the dollar bill?
为什么不是 S比4Q轻很多, 所以S比4Q 更适合代替the dollar bill, 当然要是这样的话, B的语法结构有问题, 而且后面的it 就指代不明, 而且lighter也不对.
总之我觉得C的句意让我很难理解
算了不纠结了. 知道每个选项怎么错了就好了
多谢!