OG12-107 请大家帮忙解释一下，谢谢

翁羽凌虚 · 发表于 2011-2-20 11:30:22

Originally developed for detecting air pollutants, a technique called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it, is finding uses in medicine, archaeology, and criminology. finding uses in medicine, archaeology, and criminology.
(C) A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destroying it,
OG说which修饰的是EMISSION，那么A里面的which为什么没有修饰emission呢？
来自一楼同学的帮助，我把解释贴出来：
The difference is in the placement of the various phrases.

A: "(opening modifier), (noun) (modified by necessary descriptive phrase), which" - in this structure, which refers to the noun. Note that the few words right after "technique" are simply the name of that technique. These words ("technique called proton-induced X-ray emission") collectively make up the extended noun phrase to which "which" refers. The single-word noun is technique but the other words are necessary to understand what technique we're talking about.

C: "(Noun) (modifier), (modifer), which" - in this structure, we've separated what had been the necessary descriptive phrase from the noun, so it is no longer a part of any extended noun phrase. As a result, the "which" in this case really does only apply to "emission" rather than to a "technique called emission" b/c "a technique called emission" as a simple noun phrase, is no longer part of the sentence.

OG12-117
George Sand (Aurore Lucile Dupin) was one of the first George Sand (Aurore Lucile Dupin) was one of the first European writers to consider the rural poor to be legitimate subjects for literature and portray these with sympathy and respect in her novels.
(A) to be legitimate subjects for literature and portray these
(B) should be legitimate subjects for literature and portray these
其中OG的解释力有这么一句： These (pl. of this) is a demonstrative pronoun, and here it is unclear what it is pointing to as its antecedent: Subjects is the nearest plural noun antecedent, but these could also point to something not in the sentence, an unknown noun。说THESE可以指代句外单词是个什么情况啊？
谢谢啊

Gail小M · 发表于 2011-2-20 11:45:25

http://www.manhattangmat.com/forums/og-sc-105-t1277.html

翁羽凌虚 · 发表于 2011-2-22 11:03:17

啊啦看懂了呵呵谢谢你

OG12-107 请大家帮忙解释一下，谢谢

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