OG12 106 that指代。。。could 可任意添加？ 欢迎讨论

zwhjzwhj

为啥就是没有看到过讨论这个could的帖子呢？
这个could难道是虚拟语气？本来应该可以变成替代telephone的，结果却没有。
有NN给讲讲呗~

OG12-106
Marconi's conception of the radio was as a substitute
for the telephone, a tool for private conversation:
instead, it is precisely the opposite, a tool for
communicating with a large, public audience.
(A) Marconi's conception of the radio was as a
substitute for the telephone, a tool for private
conversation; instead, it is
(B) Marconi conceived of the radio as a substitute
for the telephone, a tool for private
conversation, but which is
(C)   Marconi conceived of the radio as a tool for
private conversation that could substitute for the
telephone; instead, it has become
(D) Marconi conceived of the radio to be a tool for
private conversation, a substitute for the
telephone, which has become
(E) Marconi conceived of the radio to be a
substitute for the telephone, a tool for private
conversation, other than what it is,

答案为C

2个问题
1 that
有人说其中that跳跃修饰tool
根据OG12解释--- The main point of ths sentence is to explain that while Marconi felt the radio would substitute for the phone as an instrument of private communication, in fact ...
我觉得应该是指代radio.
2 could
原文中无could, 但选项中有could，说明添加了could， 问：情态动词不是不可以随意添加吗？

大家讨论一下。

-- by 会员 girlwithwings (2010/3/13 14:56:14)

1, 同意LZ和1楼的看法。n+prep结构+that这种用法可以跳跃修饰，我觉得是跳过介词结构直接修饰中心词（n）。所以，C中的that其先行词为radio.
2, 首先可以肯定的是情态动词不能随意添加。这里之所以能用是因为could在这里表示过去的意愿。如果这里不用could，substitute就需要用过去式substituted表示过去发生的事实。但是，这与原意不符。因为（照我的理解）radio substituted for the telephone 并没有实际发生。所以，这里用could 比substituted更加合适。

-- by 会员 imagelan (2010/6/15 4:43:27)