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今天在网上搜索大全问题的时候，看到了tianwan GG的关于sb's doing sth的解释，但是有些不太明白，还望大家指教。
原讨论：http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=45069
以下是引用zj1983在2004-4-7 21:53:00的发言： 大全507.Modern critics are amused by early scholars’ categorizing Tacitus’s Germania as an ethnographic treatise.
(A) scholars’ categorizing Tacitus’s Germania as
(B) scholars’ categorizing Tacitus’s Germania as if
(C) scholars, categorizing of Tacitus’s Germania as
(D) scholars who categorize Tacitus’s Germania as
(E) scholars who categorize Tacitus’s Germania if 答案是A，我想问问XDF上课时说sb's doing sth在GMAT中永远错，为什么这里是对的？ 以前的帖子好像讲得不清楚，还望NN们帮忙！
问题是逻辑主语，如果分词的逻辑主语是句子主语，用one's doing（one是句子主语）则one's多余。本题不是句子主语，所以这个one's不可省。 |
以前我也是这末认为的，但是在OG的解释中看到了几个例子，觉得好象有些冲突。
48. The golden crab of the Gulf of Mexico has not been fished commercially in great numbers, primarily on account of living at great depths-- 2,500 to 3,000 feet down.
(A) on account of living
(B) on account of their living
(C) because it lives
(D) because of living
(E) being they live
As used in choices A, B, and D, the phrases on account of and because of are unidiomatic; because, which appears in C and E, is preferable here since because can introduce a complete subordinate clause explaining the reason why the golden crab has not been fished extensively. B and E also produce agreement errors by using the plural pronouns their and they to refer to the singular noun crab. Choice D, like A, fails to provide a noun or pronoun to perform the action of living, but even with its the phrases would be more awkward and less clear than it lives. C, which uses because and it as the singular subject of a clause, is the best choice.
这道题中，分词的逻辑主语是句子主语crab呀？Choice D, like A, fails to provide a noun or pronoun to perform the action of living做何解释？
另：
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 best choice is C because it uses the idiomatically correct expression distinguishes between x and y and because it provides a structure in which the relative clause beginning which may be violent clearly modifies mood swings. 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.
their in A is intrusive and unnecessary倒是符合Tianwan GG的说法。
除了上述质疑外，还有一个问题，介词+being done是否也是一种固定的正
确搭配？还望各位NN回答！谢谢！
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发表于 2004-12-7 20:27:00
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