求助； prep40

40. (26538-!-item-!-188;#058&003184)

According to one expert, the cause of genetic irregularities in many breeds of dog is not so much

that dogs are being bred for looks or to meet other narrow criteria as that the breeds have relatively

few founding members.

(A) the cause of genetic irregularities in many breeds of dog is not so much that dogs are being

bred for looks or to meet other narrow criteria

(B) the cause of genetic irregularities in many breeds of dog is not as much their being bred for

looks or meeting other narrow criteria as much

(C) it is not so much the cause of genetic irregularities in many breeds of dog that they are being

bred for looks or meeting other narrow criteria as much

(D) it is not so much that the cause of genetic irregularities in many breeds of dog is their being bred

for looks or meeting other narrow criteria so much

(E) it is not so much the cause of genetic irregularities in many breeds of dog to be bred for looks or

to meet other narrow criteria

句子结构：According to…, the cause of… is not so much that… as that…     比较结构。

考点：比较、平行对称

1)       比较的习惯用法，not so much that… as that…    与其说…不如说…，形式平行，常见的错误用法

有：not so much their…as much as that; not so as…as much as; not so much… so much as，

且前后不平行。

2)       平行对称，GMAT语法中常见的平行结构混淆选项是形式上平行，但逻辑上修饰对象是错误的，

要从逻辑意思出发，看平行对象是否合理。

(A)      正确，for looks or to meet平行修饰谓语bred，是功能平行而不是形式平行，表示be bred的目的。

(B) not so much their being…as much as that…不平行。

(C) it表语从句用法错误，not so much the cause of…as much as that…不平行；are being bred for

looks or meeting…中的meeting有与being并列的歧义，应该用to meet表示目的。

(D) it表语从句用法错误，第二个is多余，not so much… so much as搭配错误；应该用to meet。

(E) it表语从句用法错误；to be bred和to meet逻辑上不平行；not so much that…搭配不完整。

 说 C D E it 表语从句用法错误； 我不是很懂！请教各位大侠

UP

not so much X as that

既然划线部分要和非划线部分as that平行，X是什么？

只能是that从句。

这题就像是解一道方程。

对啊，但请问楼上，it is not so much that 也是that从句啊？