og 204(大全396）：我看不懂og的解释

In recent years cattle breeders have increasingly used crossbreeding, in part that their steers should acquire certain characteristics and partly because crossbreeding is said to provide hybrid vigor.

(A) in part that their steers should acquire certain characteristics

(B) in part for the acquisition of certain characteristics in their steers

(C) partly because of their steers acquiring certain characteristics

(D) partly because certain characteristics should be acquired by their steers（E）

(E) partly to acquire certain characteristics in their steers

Choice E is best; it best indicates purpose for crossbreeding—partly to acquire. In A, in part that does not grammatically connect the underlined portion to the first part of the sentence (the independent clause). In both A and B, in part is not parallel with and partly in the non-underlined portion. Choice C causes a misreading, suggesting that the steers’ acquisition has caused the crossbreeding. D awkwardly and illogically shifts to the passive voice: certain characteristics should be acquired by their steers;) the steers, however, are not agents in the acquisition.

上面红字的部分，我看了好几遍，把C答案代到句子里，怎么也没读出来og解释的这个含义！？请大家指点指点！

本题我认为是这样的：

ETS的思路中，因果关系是存在前后次序的，因在前，果在后，有了因，才有果。C选项却把果放到前面，成为了因。明白的说，本来因果关系是这样的：

因为希望获得不同品种，所以越来越多杂交。

但C的解释是这样的：因为对不同品种的获得，所以越来越多杂交。原来的希望和目的变成了已经发生的事实，颠倒了因果的次序。

至于E，我觉得这道题目很典型，告诉我们一定要以表达精确清晰为主，而不可以套所谓平衡对称的考点。我第一选择也是看都不看就选了D，但是细看答案就可以看到，这里说的两个因素，一个是目的，一个是原因；一个是杂交为了获取，一个是杂交了以后能够得到的好处。这是很细微的区别。要精确的表达“目的”，就要用to do，而不用because。如果D改为partly because they can acquire certain。。。那估计就对了。

选项C是because of 后面加了一个名词，their steers acquiring certain characteristics, 所以看起来好像

crossingbreeding 是partly应了steers acquiring.

That's it. 别想太多

請問一下 選項E怎麼平衡... partly to ... and partly because...

謝謝~

我覺得steers不能acquire 也不能should acquire

而是 cattle breeders used crossbreeding to acquire certain characteristics in their steers

所以要選E

. 我就是对这点很疑惑,C项partly because of their steers acquiring certain characteristics得中心词应该是their steers ,为什么OG说是steers’ acquisition 呢

其中OG对because of 得中心词有一个很好的解释是

OG-175

175. Two new studies indicate that many people become obese more due to the fact that their bodies burn calories too slowly than overeating.

(A) due to the fact that their bodies burn calories too slowly than overeating

(B) due to their bodies burning calories too slowly than to eating too much

(C) because their bodies burn calories too slowly than that they are overeaters

(D) because their bodies burn calories too slowly than because they eat too much（D）

(E) because of their bodies burning calories too slowly than because of their eating too much

OG说：Choice E uses parallel forms, but the convoluted structures are awkward and wordy. Furthermore, the word bodies would need an apostrophe (bodies’) since it is the logical subject of the gerund burning

那这样看来不是矛盾了吗,本题中也应该是加“'”所有格才可以那样说阿