OG 52 vs. OG 150 动名词的用法

52.   The rising of costs of data-processing operations at many financial institutions has created a growing opportunity for independent companies to provide these services more efficiently and at lower cost.

(A) The rising of costs

(B) Rising costs

(C) The rising cost

(D) Because the rising cost（C）

(E) Because of rising costs

150. In the mid-1960’s a newly installed radar warning system mistook the rising of the moon as a massive missile attack by the Soviets.

(A) rising of the moon as a massive missile attack by the Soviets

(B) rising of the moon for a massive Soviet missile attack

(C) moon rising to a massive missile attack by the Soviets

(D) moon as it was rising for a massive Soviet missile attack（B）

(E) rise of the moon as a massive Soviet missile attack

一样的词, 如何一个用动名词, 一个就不能用?

rising是名词，不是动名词。

第二个不选的原因是 n n 这个形式ets一般不喜欢，

前面的NN们已然讨论了, MM查一下

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=27472

OG52 The rising of costs of data-processing operations at many financial institutions has created a growing opportunity for independent companies to provide these services more efficiently and at lower cost.

(A) The rising of costs

(C) The rising cost

答案C是上升的成本, A是成本的上升, A更多是强调rising, 而C的rising cost是作为一个整体出现, 更符合句意需要.

如果选A ，正确的平行结构是：
            The rising of costs has
created a growing of opportunity .成本的上升制造了

机会的增加。

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在纽约时报上搜索"the rising of costs"，自1851年以来只出现过一次，而且costs后面还没有接of。一些习惯用法需要大家平时去积累，不一定非要从语法上来解释。

就好像中文当中，为什么是“胸有成竹”，而不是“胸有成枫”，“胸有成松”，抑或是“胸有成草”呢？

mistake ...for...

还有就是强调的重心不一样

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