Prep2012-Pack1-SC-014 VSC002587

slr257

Restorers say that if allowed to remove and replace the discolored layer of varnish on the Mona Lisa, the colors Leonardo da Vinci painted nearly five hundred years ago will once again shine through.
A. If
B. if it is
C. if they are
D. when
E. when it is


答案是C，B中的it可以作为place holder吗？NN指导。。。。

superbat28

语法上没有问题，但是句义上问题很大。

it做place holder，在这道题里的具体表现即是to remove and replace...充当句子主语，只是因为其太长，而用it作为形式主语来避免头重脚轻的感觉。

而回归原位以后，即变成了Restorers say that if to remove and replace the discolored layer is allowed, the colors will once shine.

首先，to do做主语，跟在if引导的从句后本来就不好；第二，to do暗含一种表示目的的事件。正常逻辑思维来看，应该是【如果可以移除XXX】，用to do就显得很累赘了，也多出了不必要的表目的的那层意思。

slr257

It is good to eat fruit. 这里的to do也有目的的含义吗？我觉得就是简单的不定式做主语。不过，我后来想了想，用they的话，动作的实行者更加清楚，主从句之间的联系更加紧密，结构因此更加紧凑,而这是GMAT比较喜欢的句子结构。您觉得是不是这个原因？另外，我想做一个假设。如果答案给的是B，我们就会来解释C为什么不对。我们有没有可能去解释说，they指代不清，特别是它本身在从句里，非常有可能指代colors本身。这不是指代不清吗？
更进一步，对于这种情况，我一般都很困惑。。。有时候GMAT会说colors本身不能去remove和replace，因此，they不会指代colors；有时候，GMAT又会说they就是指代不清。。。。我记得有一题:

In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to visitors for cleaning and repairdue to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizingand fungus was growing on the walls.

(A) due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing

(B) due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize

(C) because tourists were exhaling moisture, which had raised the humidity within them to levels such that salt from the stone would crystallize

(D) because of moisture that was exhaled by tourists raising the humidity within them to levels so high as to make the salt from the stone crystallize

(E) because moisture exhaled by tourists had raised the humidity within them to such levels that salt from the stone was crystallizing

这里面CD的them就是指代不清。。。。

DUKB24

It is good to eat fruit. 这里的to do也有目的的含义吗？我觉得就是简单的不定式做主语。不过，我后来想了想，用they的话，动作的实行者更加清楚，主从句之间的联系更加紧密，结构因此更加紧凑,而这是GMAT比较喜欢的句子结构。您觉得是不是这个原因？另外，我想做一个假设。如果答案给的是B，我们就会来解释C为什么不对。我们有没有可能去解释说，they指代不清，特别是它本身在从句里，非常有可能指代colors本身。这不是指代不清吗？
更进一步，对于这种情况，我一般都很困惑。。。有时候GMAT会说colors本身不能去remove和replace，因此，they不会指代colors；有时候，GMAT又会说they就是指代不清。。。。我记得有一题:

In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to visitors for cleaning and repairdue to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizingand fungus was growing on the walls.

(A) due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing

(B) due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize

(C) because tourists were exhaling moisture, which had raised the humidity within them to levels such that salt from the stone would crystallize

(D) because of moisture that was exhaled by tourists raising the humidity within them to levels so high as to make the salt from the stone crystallize

(E) because moisture exhaled by tourists had raised the humidity within them to such levels that salt from the stone was crystallizing

这里面CD的them就是指代不清。。。。

-- by 会员 slr257 (2012/10/18 20:55:06)

http://forum.chasedream.com/GMAT_SC/thread-760401-1-1.html


看1楼的回复

slr257

科神也认为they有可能指代不清？代词指代是应该放在靠后的考虑因素，可是B也不是明显的错啊。。。。如果C里的they没有指代不清的话，C完全比B好。可是，B只是小小的问题。。。。语法上完全成立，事实上，就算是看意思，除了没有表达出动作执行者之外，没任何的不清楚。主语是restorer,后面的动作明显是restorer的活。。。。common sense来说，作为一个阅读者，B是完全可以接受的，而C也许会稍微引起点误会，。。。。。

DUKB24

科神也认为they有可能指代不清？代词指代是应该放在靠后的考虑因素，可是B也不是明显的错啊。。。。如果C里的they没有指代不清的话，C完全比B好。可是，B只是小小的问题。。。。语法上完全成立，事实上，就算是看意思，除了没有表达出动作执行者之外，没任何的不清楚。主语是restorer,后面的动作明显是restorer的活。。。。common sense来说，作为一个阅读者，B是完全可以接受的，而C也许会稍微引起点误会，。。。。。

-- by 会员 slr257 (2012/10/18 22:25:21)

没懂、、、


你这个回复是？？？


关于哪个题目的？

slr257

就是我的这个题。

DUKB24

就是我的这个题。

-- by 会员 slr257 (2012/10/18 22:43:53)

老生长谈



你得考虑AC存在的意义，用选项来决定考点

A省略的逻辑主语是colors（但这个不符合逻辑！你得再仔细看看）


所以这就是C选项存在的意义了


对于B选项的it是可以作为placeholder


但是我不选的理由同意bat版主

slr257

在正确的答案里，they是指restorer。to do未必就是有表达目的的意思：it is good to eat fruit. 代词指代是很低层次的rule，但是，我觉得B也没什么不好的，除了动作执行者不是非常清楚。即便按照选项的存在意义来说的话，they也是有可能模糊指代，进而造成歧义的。我想说的是，B虽然不是很完美，但是，C同样有问题，为什么B的问题更大？

DUKB24

在正确的答案里，they是指restorer。to do未必就是有表达目的的意思：it is good to eat fruit. 代词指代是很低层次的rule，但是，我觉得B也没什么不好的，除了动作执行者不是非常清楚。

-- by 会员 slr257 (2012/10/18 22:54:23)

除了动作执行者不是非常清楚。


这个就是致命的错误！