OG 52题

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

(E) Because of rising costs

C is the best choice. In choice A, The rising of costs is unidiomatic, and in B costs... has lacks subject-verb agreement. Choices D and E produce sentence fragments since Because makes the clause subordinate rather than independent.

对答案没有异议，但是请问OG里解释the rising of costs is unidiomatic，我不太理解，这怎么unidiomatic了呢？

I cannot agree with you on this point; Refer to OG150

the rising of the moon....attack....;

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

Choice B is best because it alone correctly handles the idiom to mistake x for y. Though choice D manages the correct preposition, for, the phrase the moon as it was rising for is less efficient and precise than the phrasing of choice B: since rising functions as a verb in D, the phrase for a massive... attack now seems to modify rising rather than mistook. Choice C incorrectly uses mistook... to, and choices A and E incorrectly use mistake... as. Choice E also employs the nonidiomatic rise of the moon.

注意对称性： the rising cost和a growing opportunity

the rising of cost of里the rising是中心词，rising has created oportunity显然错

而the rising cost of里the rising cost是中心词，rising cost has created oportunity显然逻辑上就对了。

听说现在机考，逻辑上的正确性也必须注意

I guess

parallelism in meaning always outweigh parallelism in structure. only "Rising cost" (but no "rising") and "rising of the moon" (it describes the "rising" as a process that parallels to the process of missile attack in meaning. neither "moon" nor "rise of moon" showed that function.) made exact sense in each own context respectively.