关于让步状语从句，从句主语可否省略的问题

bradyiris · 发表于 2013-12-29 01:32:24

求大牛指点一下OG13的17题为什么C选项不对。题目如下
Sunspots,vortices of gas associated with strong electromagnetic activity,are visible as dark spots on the surface of the Sun but have never been signted on the Sun's Poles or equator.

A.原句
B.are visible as dark spots that never have been sighted on the surface of the Sun
C.appear on the surface of the Sun as dark spots although never sighted at
D.appear as dark spots on the surface of the Sun,although never having been sighted at
E.appear as dark spots on the Sun's surface,which have never been sighted on
B,D和E都可以很容易判断出错误原因。但本人确实不到C哪里不对。OG里的解释说因为although引导的让步状语从句需要有一个主语和谓语。
请问为什么此处不可以视为因为主语相同为Sunspots，所以在although引导的让步状语从句中省略了主语？如果是的话，我可不可以理解为让步状语从句的主谓是不可以省略的，即使和主句相同。
在线等，在过几天就要考了。谢谢给位CDer的帮助。

lindberghya · 发表于 2013-12-29 02:35:32

我的看法是让步状语省略的形式只能出现在前方只有主语时才行。这时我常把这个部分当作插入来对待；或者是出现在句首，后面跟着被省略的主语。你可以在prep和gwd中搜索下although，你就能发现省略正确的句子特征了。

bradyiris · 发表于 2013-12-29 04:42:16

lindberghya 发表于 2013-12-29 02:35
我的看法是让步状语省略的形式只能出现在前方只有主语时才行。这时我常把这个部分当作插入来对待；或者是出 ...

万分感激，我这就去搜索看看。如果有什么发现我再补发到这个帖子里面

lindberghya · 发表于 2013-12-29 04:57:28

bradyiris 发表于 2013-12-29 04:42
万分感激，我这就去搜索看看。如果有什么发现我再补发到这个帖子里面

好滴，有新的发现一起分享~

DUKB24 · 发表于 2013-12-29 20:18:51

lindberghya 发表于 2013-12-29 02:35
我的看法是让步状语省略的形式只能出现在前方只有主语时才行。这时我常把这个部分当作插入来对待；或者是出 ...

不。。。这个不是主要的错误原因。。。

lindberghya · 发表于 2013-12-30 00:59:37

DUKB24 发表于 2013-12-29 20:18
不。。。这个不是主要的错误原因。。。

大神来了～求指点～

DUKB24 · 发表于 2013-12-30 09:41:50

lindberghya 发表于 2013-12-30 00:59
大神来了～求指点～

1. 先是关于visible和appear as的区别：
In this question, I think GMAT would say that appear as or visible as would be okay, although I think appear as is slightly more precise, since we are describing the process of how they appear (i.e., look or seem): to our eyes, they look like/appear to be dark spots; there's some kind of distortion happening when we see the sunspots.

2. although的出现把两个main clause变成一个主句一个状语从句；原句中强调的but后面的句子，就是太阳黑子在赤道不能被看见；C选项强调的是太阳黑子出现在surface这个部分，意思上有差别；although从句省略主谓，只能省略be一类的词；have been sighted这类词不能被省略

sighted modifies sunspots:
Sunspots appear on the surface of the Sun as dark spots although (sunspots were) never sighted at the Pole...（外国论坛的解释）很明显的省略后时态被改变了

lindberghya · 发表于 2013-12-30 14:04:24

DUKB24 发表于 2013-12-30 09:41
1. 先是关于visible和appear as的区别：
In this question, I think GMAT would say that appear as or v ...

C和D在句子意思上我只觉得读起来很拗口，原来是句子重心改变的原因。拜服~！
想再请教一个问题，就是表达原因和结果的句子：
一种是“because+原因，+结果”，一种是“SVO，+verbing” 。这两种句型从句子意思上有什么重心的改变吗？
举例：OG12-113
Because there are provisions of the new maritime code that provide that even tiny islets can be the basis for claims to the fisheries and oil fields of large sea areas, they have already stimulated international disputes over uninhabited islands.

B. Because the new maritime code provides that even tiny islets can be the basis for claims to the fisheries and oil fields of large sea areas, it has already stimulated

C. Even tiny islets can be the basis for claims to the fisheries and oil fields of large sea areas under provisions of the new maritime code, already stimulating
Ans：B
另外：这题感觉OG对C说的很模糊；我对这题的C是这样理解的：verbing的逻辑主语城了tiny islets，所以不对。请版主指点一下~~~~~~~

cristophor · 发表于 2013-12-30 15:50:39

这题答案是哪个啊?
如果AB的 visible 没有 appear 好；
C，D的壮语从句不能省略主谓；
E的which 定语从句修饰surface;

关于让步状语从句，从句主语可否省略的问题

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