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babybearmm 发表于 2012-3-12 15:32 ![]()
那请他来回答吧...反正那道neuroscientists的题目,肯定是作为noun modifier修饰neuroscientists ...
关于Baby姐和54楼同学的“冲突”我来说一下我的看法,我当时也注意到第25题和Prep08笔记中的夹心修饰的提法有冲突,但仔细看完OG13,前后总结了一下,如下:
首先,我们要明白我们现在考的是GMAT,经过一段时间的学习大家都知道GMAT的语法和通常的语法有些不一样,它似乎更严格,有些词平时有多种意思可在某些场景下使用,但确在GMAT中不被允许使用。比如按照大家以前的语法习惯,whether和if都可以引导宾语从句,但是在GMAT里,它规定只能用whether引导。可能是if后面跟句子的时候时还可以表示是条件,意思是如果,这是我个人的理解。而且在读Manhattan的那本语法书时,它也多次提到GMAT的语法里边跟平时我们用的有点不一样。所以,结论,我们既然是在考G
,那么就一定要按照GMAT的游戏规则来出牌。那么GMAT的规则在哪里体现呢,那么最权威的莫过于OG了,而且是最新版的OG13。所以我们一切都要以OG上面的规则为准,哪怕你是这个权威,那个大牛呢,在和OG给出的规则有冲突时,一切以OG为准。
在明白上面个前提的情况下,我来说一下我对逗号+VING在它前面没有句子时的用法的看法。OG13第25题,Neuroscientists, having amassed a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood, are now drawing solid conclusions about how the human brain grows and how babies acquire language.
(A) Neuroscientists, having amassed a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood, are
(B) Neuroscientists, having amassed a wealth of knowledge about the brain and its development from birth to adulthood over the past twenty years, and are
(C) Neuroscientists amassing a wealth of knowledge about the brain and its development from birth to adulthood over the past twenty years, and are
(D) Neuroscientists have amassed a wealth of knowledge over the past twenty years about the brain and its development from birth to adulthood,
(E) Neuroscientists have amassed, over the past twenty years, a wealth of knowledge about the brain and its development from birth to adulthood,
答案是A。
我当时也是不明白A中的having amassed部分到底是做定语还是状语。找来找去,最后在C选项的解释里找到了答案。
C Amassing, like having amassed, functions as an adjective, not a verb; the sentence therefore lacks the first main verb implied by the compound verb construction and are now drawing....
我想这是OG自己说的,amassing和having amassed功能上是形容词,所以having amassed是做定语。
OG13-104 Beatrix Potter, in her book illustrations, carefully coordinating them with her narratives, capitalized on her keen observation and love of the natural world.
(A) Beatrix Potter, in her book illustrations, carefully coordinating them with her narratives,
(B) In her book illustrations, carefully coordinating them with her narratives, Beatrix Potter
(C) In her book illustrations, which she carefully coordinated with her narratives, Beatrix Potter
(D) Carefully coordinated with her narratives, Beatrix Potter, in her book illustrations
(E) Beatrix Potter, in her book illustrations, carefully coordinated them with her narratives and
答案是C。
B选项的解释是B Phrase carefully coordinating... illogically modifies the noun that immediately precedes it: book illustrations; Potter, not the illustrations, did the coordinating.
翻译过来是carefully coordinating 不和逻辑的修饰了它前面的名词book illustration。OG在这里也没说carefully coordinating既可以同时向前修饰同时也可以向后修饰,因为这个产生歧义所以才错。它就只说了是向前修饰。所以,这里又是一个逗号+Ving做定语修饰紧挨着它前面的名词的例子。
OG13-106 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.
(A) 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,
(B) Originally developed for detecting air pollutants, having the ability to analyze the chemical elements in almost any substance without destroying it, a technique called proton-induced X-ray emission
(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,
(D) A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which has the ability to analyze the chemical elements in almost any substance quickly and without destroying it,
(E) A technique that was originally developed for detecting air pollutants and has the ability to analyze the chemical elements in almost any substance quickly and without destroying the substance, called proton-induced X-ray emission,
答案是A。
B 选项的解释是B Placement of two long modifiers at the beginning of the sentence is awkward and makes it difficult to locate the subject; second modifier (having...) actually modifies the first modifier.
大家看分号后的解释,说是第二个修饰成分having实际上修饰了第一个修饰成分。这里它说的不是很清楚,到底是修饰前面整个短语呢还是修饰前面紧挨着它的名词。但是这里我认为还是修饰它前面的名词。有一点可以确认的是OG在这里还是只说到having部分还是往前面修饰,并没有说也同时可以向后修饰。
关于逗号+VING在前面没有句子时的例子我只在OG13中找到这3个。OG的解释都是只向前修饰,所以经过上面的分析和总结,我认为逗号+VING如果不是在句末或者前面没有句子的情况下就是做定语修饰前面的名词。
关于Prep08笔记中的夹心修饰。当我看Prep08笔记时看到这一块时,也感觉和OG13中的25题矛盾了。以下是Prep08笔记中夹心修饰的
内容:
补充说明:
1. 关于夹心修饰 (by aeoluseros):
所以歧义修饰,是因为引发了不同的理解,而并不是语法上是否会有不同的修饰,所谓夹心修饰也是这个原则。很多人对“夹心修饰”都有过一个误解,认为S, v-ing, V. + O.结构中,v-ing既可以往前修饰S,也可以往后修饰V就是夹心,而实际上夹心并不是“可以往前修饰S,也可以往后修饰V” 。在S, v-ing, V. + O.这样的表达中,v-ing约定俗成只伴随修饰动词,见下例:prep 2-104 The yield per acre of coffee berries varies enormously, because a single tree, depending on its size and on climate and altitude, is able to produce enough berries to make between one and twelve pounds of dried beans a year.
这个句子里depending不能改为dependent,因为depending和dependent的区别在于,前者伴随修饰谓语动词is able to produce,后者则是修饰名词single tree,会造成逻辑上不对。用dependent时:"依靠于size的一棵树能够长出足够的浆果"。用depending时,“一棵树取决它的size来做到长出足够的浆果”。这里版主给夹心修饰的适用条件规定的是“S,V-ing,V.+O”。不知道版主这一规则严格不,就是一是S和VING中能否有其他成分,比如介词短语,二是VING是否只能是严格的动词的不带任何时态的VING。因为如果严格的话,OG中的所有SC题没有完全适用“夹心修饰”的句子。比如OG13-25中的having amassed是个带有时态的Ving,稍微有些区别。OG13-104的A选项Beatrix Potter, in her book illustrations, carefully coordinating them with her narratives,在主语和Ving中间有个介词短语in her book illustrations。OG13-106题B选项VING前面的成分不包含主语。
如果按不严格来对待的话,第25题很明显OG自己在C选项解释到是做定语修饰前面的名词也即主语Neuroscientists。在这个帖子中有更详细的讨论,http://forum.chasedream.com/thread-648003-6-1.html。Babybearmm说到也是做定语修饰前面的名词。
第104题的A选项的解释是A The participial phrase does not clearly modify the noun in the preceding phrase; 这里OG解释分词短语(肯定是指carefully coordinaing them了)不能清除地修饰前面短语中的名词,很明显前面的短语只有一个那就是in her llustrations,所以修饰的名词也就是illustration了。所以OG还是没有说它可以向后修饰句子的谓语动词。第106题VING前面没有句子的主语,不属于夹心修饰讨论的范围。
再来仔细看看Prep08笔记给的夹心修饰的例句,这个句子我没有在OG12和OG13的所有SC句子中没有发现。其次“夹心修饰”这个概念版主没有说明出处,是哪里的权威资料里摘抄过来的?
最后我仔细读了一下,感觉depending做定语往前修饰tree也可以啊,“依靠自身的大小和气候、海拔的单一的树能够生产出足够的……”,不是完全说不通或者是逻辑看起来有很大错误啊。即使有夹心修饰这个概念,这个例句也按向后修饰来理解,但我们看到这个例句来自于Prep2,是否这个prep2是比较早的题,而OG在不断完善语法规则的同时对此有了新的定义,比如在最新的权威资料OG13
中重新定义了此语法规则:只能是往前修饰。这只是我的猜测。
所以,综合看来,按照最新的来自于OG13的规则来看,我认为逗号+VING在前面没有句子且不在句首时只能是修饰前面的名词。
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