平行对称的问题

zebracxy

22. In recent years cattle breeders have increasingly used crossbeeding, in part that their steers should acquire certian characterstics and partly because cross breeding is said to provide hybrid vigor.

(A) in part that their steers should acquire certian characterstics
(B) in part for the acquistion of certain characterstics in their steers
(C) partly because of their steers acquiring certain characterstics
(D) partly because certian charactrstics should be acquired by their steers
(E) partly to acquire certain characterics in their steers

正确答案是E，我的问题是E的partly和之后的partly是对称了，但是前面的partly跟的是不定式短语，而后面的partly跟的是一个完整的句子，这样也可以的？

栖叶泠风

这道题OG11的解释如下：

The sentence gives tow reasons that cattle breeders use crossbreeding; these reasons should be introduced in parrallel ways with the word partly. The infinitive to acquire clear and concisely conveys the purpose of the crossbeeding.

E：In this sentence, the word partly is used to introduce  both reasons; the phase to acquire certain characteristic is clear and concise.

新东方老师的解释如下：
前置省略。E 省略了 partly ( because crossbreeding is said ) to acquire certain characteristics in their steers

刘振民的语法书上说，建议大家把这道题给背下来……- -

zebracxy

谢谢ls热心指教，我关心的是平行对称不是讲究形式对称吗？XDF的解释不是很认同，不可以省略之前没有出现过的内容的吧。这道题是特例还是也可以解释通的？

栖叶泠风

特例我认为~

falco

根据Parallelism的原则，剩下CDE。开始比较区别，C的acquiring明显脑残的表达方式，意思不对。D的should be acquired by也是脑残的表达方式，被动式能不用就不用。剩下E，选了。

zebracxy

根据Parallelism的原则，剩下CDE。开始比较区别，C的acquiring明显脑残的表达方式，意思不对。D的should be acquired by也是脑残的表达方式，被动式能不用就不用。剩下E，选了。

-- by 会员 falco (2010/1/5 3:12:17)

根据Parallelism的原则，E直接被我排除了，因为不定式和句子不对称。暂时只能理解为特例了。

20082010

你如果把partly (because cross breeding is said) to provide hybrid vigor中括号的部分当作插入语，整个句子的结构就变成了partly to and partly to. 这样理解是不是容易些？

zebracxy

你如果把partly (because cross breeding is said) to provide hybrid vigor中括号的部分当作插入语，整个句子的结构就变成了partly to and partly to. 这样理解是不是容易些？

-- by 会员 20082010 (2010/1/5 12:06:07)

如果要省略的话一定是省之前出现过的，怎么也应该省后半部分啊

rickywang

acquire是不是尽量不用被动？