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Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.

正确答案: C

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【求助】OG verbal 105 it指代 & 108 prevent from的问题

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发表于 2015-6-1 10:55:08 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
105 The physical structure of the human eye enables it to sense light of wavelengths up to 0.0005 millimeters; infrared radiation, however is invisible because its wavelength ——0.1 millimeters——is too long to be registered by the eye.
(A) original
(B) however, the wavelength of infrared radiation—0.1 millimeters—is too long to be registered by the eye making it invisible
(C) infrared radiation, however, is invisible because its wavelength—0.1 millimeters—is too long for the eye to register it
(D) however, because the wavelength of infrared radiation is 0.1 millimeters, it is too long for the eye to register and thus invisible
(E) however, infrared radiation has a wavelength of 0.1 millimeters that is too long for the eye to register, thus making it invisible

正确答案  A

我选的是C, OG上解释C的错误原因是 it lacks a clear referent
但是C里面 its wavelength is too long for the eye to register it
因为这句话的主语是its wavelength,所以eye register的不能再是主语,it就是指代的radiation
这么理解it不就没有指代不清的问题了?

还有就是eye register的不应该是radiation而不是wavelength?但A表示的是eye register wavelength。。。这样A不是有问题。。。


108 Sound can travel through water for enormous distances, prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different
temperatures and densities.
A.  original
B.  prevented from having its acoustic energy dissipated by
C.  its acoustic energy prevented from dissipating by
D.  its acoustic energy prevented from being dissipated as a result of
E   preventing its acoustic energy from dissipating by

正确答案 C

我选了B
这句话的意思是不是boundaries可以防止声音能量消耗?所以选C?
不需要用被动语态吗? its acoustic energy prevented from being disspated by?





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沙发
发表于 2015-6-1 12:50:07 | 只看该作者
第一题,看未划线部分,it出现过,指代eye。同一句话中it只能指代同一个单数名词。
第二题,你逻辑意思完全理解错误。多读几次题。boundaries是手段,不是结果。
板凳
 楼主| 发表于 2015-6-1 14:58:27 | 只看该作者
alzn2765 发表于 2015-6-1 12:50
第一题,看未划线部分,it出现过,指代eye。同一句话中it只能指代同一个单数名词。
第二题,你逻辑意思完全 ...

太感谢了!
第二题后来想通了,第一题完全没看到前面的it
地板
 楼主| 发表于 2015-6-1 15:07:13 | 只看该作者
alzn2765 发表于 2015-6-1 12:50
第一题,看未划线部分,it出现过,指代eye。同一句话中it只能指代同一个单数名词。
第二题,你逻辑意思完全 ...

不好意思我再问一下啊。。。可能有点钻牛角尖。。。
就第一题,正确答案A里面还有个its,指代的是infrared radiation,这样已经出现两个不同的it了。。
5#
发表于 2015-6-1 17:48:10 | 只看该作者
问得好,这个我也不知道。
不过既然这是正确的句子,想必是可以这样用吧。
GMAC的人都是非常非常严谨的人,一个标点符号都会用到极致的人一般不会犯这么明显的错误。
6#
发表于 2015-6-4 10:33:39 | 只看该作者
你的原题贴错了,however后面少一个comma,makes the OA wrong.
7#
发表于 2015-6-4 10:34:56 | 只看该作者
108是独立主格吧
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