大全382(OG 15) help!

15. In his research paper, Dr. Frosh, medical director of the Payne Whitney Clinic, distinguishes mood swings. which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis.  

(A)  mood swings, which may be violent without their being grounded in mental disease, from genuine manic-depressive psychosis

(B)  mood swings, perhaps violent without being grounded in mental disease, and genuine manic-depressive psychosis ,

(C)  between mood swings, which may be violent without being grounded in mental disease, and genuine manic-depressive psychosis

(D)  between mood swings, perhaps violent without being grounded in mental disease, from genuine manic-depressive psychosis

(E)   genuine manic-depressive psychosis and mood swings, which may be violent without being grounded in mental disease

The other choices use distinguishes in unidiomatic constructions. Additionally, their in A is intrusive and unnecessary, and the modifier of mood swings in B and D (perhaps violent) is awkward and less clear than the more developed clause which may be violent.

1.请问是不是压根就没这种用法呀?  N, adj ...., and /from +N

还是只是less clear than..., 没有which...的情况下就可以选.

2.BTW, distinguish sth from sth。和distinguish between sth and sth 到底有什么区别啊?

是人做主语用between...and,  非人主语用from  吗, 好像玄??

请高人指点, thanks!

1. perhaps这个词GMAT不喜欢。别问为什么，记住这个结论。

2. A的主要错误是withou their being后的their太累赘。distinguish...from...可以理解成 distinguish between... and...，但也可以理解成 某某特点使一个东东和别的东东不同，所以不如distinguish between... and...意思单一。GMAT倾向于distinguish between... and...。

GMAT考试中本来就有不少题目有2-3个选项都是对的，你只能选最优的。就像can，be able to，be capable of，三个句子哪一个更好早已不言而喻了。还有，你能说被动语法上是错的吗？I don't have any money. I have no money. 都不错，让你选一个也应该很简单吧。这就是因为所以，自然有理。可这就是GMAT。

I see, thanks tian, you are really something..

但我还是不大明白Q1:

请问是不是压根就没这种用法呀?  N , adj without....,  and /from +N

还是只是less clear than..., 没有which...的情况下就可以选.

不考虑请问是不是 perhaps的情况下,  N , adj without....,  and /from +N 的用法对吗?

好像 N , + adj短语,  +and N  是可以的吧?   

有谁知道吗? thanks

coco,我觉得的这种形式要看具体的逻辑句意，如果此形容词是修饰逻辑主语的，应该可以，但是就近修饰最近的n.，就可能会造成歧义，比如：

S+V+O1, adj..., and+O2

放到此句里来，OG里说it provides a structure in which the relative clause beginning which may be violent clearly modifies mood swings.就指明了which在这里要优于其他的adj,-ing,-ed形式，直接对最近的n.进行了限制

呵呵，老美经常喜欢说distinguish between right and wrong.也就是明辨是非，而是非是平行的，只要能区别开来了就是between了。双胞胎，你能区分开他们么,distinguish between 姐姐 and 妹妹

而distinguish from则要有不同，

或前者是后者的子集，

Speeches distinguishes man from the animals.言语使人区别于动物。

Visitors can thus distinguishe the successive construction stages, from ancient
Mausoleums to Romanesque and its Benedictine capitals

或有授予特征上的明显区分，

Vampires have certain physical characteristics that distinguishe them from humans.

All our cheap web hosting feature all the extras you can't live without, and distinguishe their self from the competition with a core focus on quality of service, stability, and support.

en

明白了谢谢古镯姐姐

但是下面两个例子，好像都不符合古镯 所说的规律呀？？哪位NN在给解释一下？？

大全87

       Although many art patrons can readily differentiate a good debenture from an undesirable one, they are much less expert in distinguishing good paintings and poor ones, authentic art and fakes.

       答案：(B) far less expert in distinguishing good paintings from poor ones, authentic art from

大全100

       Although the phenomenon of withdrawal has always been the crucial physiological Leng for distinguishing addictive from nonaddictive drugs, it has become increasingly evident that not all regular heroin users experience withdrawal symptoms.

       答案：(A) addictive from

此外，什么叫做“有授予特征上的明显区分”呀？？