Astronom : GMAT Sentence Correction (SC) - Page 2
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# Astronom

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09 Nov 2010, 11:54
zura wrote:
strait A
In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.

we need passive voice

true.

for this reason A overcome B

galaxy movement shift the light like a mover
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10 Nov 2010, 06:31
went with B
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10 Nov 2010, 07:50
In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the
Earth.
(A) to which light from a distant galaxy has been shifted
(B) to which light from a distant galaxy has shifted
(C) that light from a distant galaxy has been shifted
(D) of light from a distant galaxy shifting
(E) of the shift of light from a distant galaxy

In astronomy the term "red shift" denotes the extent [idiom]to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum [highlight]by[/highlight] the rapid motion of the galaxy away from the Earth.
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12 Nov 2010, 23:05
jallenmorris wrote:
It is amazing how time away from a question allows a person to view it differently.

The answer is A. In my first post I say something about how "has been shifted" implies that something is causing it to shift "which doesn't make sense". If I had read the question closely, I would have seen that the question includes "by the rapid..." That clearly tells us what is causing the action. A is correct because the sentence includes the necessary information to show what is causing the action.

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12 Nov 2010, 23:47
Official explanations:

Choice A is best because it is idiomatic and because its passive verb construction, has been shifted, clearly indicates that the light has been acted upon by the rapid motion. In B, the active verb has shifted suggests that the light, not the motion, is the agency of action, but such a construction leaves the phrase by the rapid motion of the galaxy away from the Earth without any logical or grammatical function. In C, the construction the extent that light is ungrammatical; denotes the extent must be completed by to which. D incorrectly employs an active verb, shifting, and extent of light is imprecise and awkward. E is faulty because it contains no verb to express the action performed by the rapid motion.
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11 Nov 2011, 07:56
Good question. Narrowed it to A and B and went with B. Got it wrong,
Nice explanation that light has been shifted ( by someone ) rather than light has shifted (on its own ).
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CR notes
http://gmatclub.com/forum/massive-collection-of-verbal-questions-sc-rc-and-cr-106195.html#p832142
http://gmatclub.com/forum/1001-ds-questions-file-106193.html#p832133
http://gmatclub.com/forum/gmat-prep-critical-reasoning-collection-106783.html
http://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html
http://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html?hilit=chineseburned

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11 Nov 2011, 15:21
I'm going for B as well,

I could easily take has shifted over has been shifted not only for passiveness but also concision
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11 Nov 2011, 21:18
Its an OG10 question as per posts and the answer is A.
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MGMAT 6 650 (51,31) on 31/8/11
MGMAT 1 670 (48,33) on 04/9/11
MGMAT 2 670 (47,34) on 07/9/11
MGMAT 3 680 (47,35) on 18/9/11
GMAT Prep1 680 ( 50, 31) on 10/11/11

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CR notes
http://gmatclub.com/forum/massive-collection-of-verbal-questions-sc-rc-and-cr-106195.html#p832142
http://gmatclub.com/forum/1001-ds-questions-file-106193.html#p832133
http://gmatclub.com/forum/gmat-prep-critical-reasoning-collection-106783.html
http://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html
http://gmatclub.com/forum/how-to-get-6-0-awa-my-guide-64327.html?hilit=chineseburned

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11 Nov 2011, 22:46
Confused between A and B , i will go with A..

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12 Nov 2011, 06:09
its should be B.

Could you provide the the question number from the OG. I am eager to verify the OA - A
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12 Nov 2011, 12:30
This is good question, one that exemplifies the importance of understanding the MEANING of the COMPLETE sentence instead of just focusing on the underlined portion of the sentence.

In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.

The sentence very clearly explains the term “red shift”. Focus on the highlighted areas of the sentence to get the gist of it.
…the extent to which light from a distant galaxy has been shifted toward the red, or long-wave, end of the light spectrum by the rapid motion of the galaxy away from the Earth.
It denotes the extent to which light from a faraway galaxy has been shifted toward the red end of spectrum by rapid motion of this galaxy.

Now look at choice B – the one that has been selected by quite a few of you as the correct answer - Lets put this choice in the simplified sentence above. The only difference between A and B is the verb - has been shifted in choice A and has shifted in choice B

Red shift denotes the extent to which light from a faraway galaxy has shifted toward the red end of spectrum by rapid motion of this galaxy.

Now what is the role of “by rapid motion”. This expression made complete sense in choice A when we wanted to show the doer in the passive construction. But now in choice B, this is ungrammatical.

So it is of utmost importance that you consider the complete sentence (whether underlined or not underlined). The reason why you marked B as correct choice is its active construction and your belief that passive is not preferred on GMAT. This is an incomplete approach and one that must be corrected in order to perform well in SC.

Take-away - first Understand the meaning of the original sentence - the complete sentence and then apply your knowledge of English language to convey that meaning appropriately.

Payal
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13 Nov 2011, 15:40
I originally went with A, but after reading comments on this post, A makes sense.
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14 Nov 2011, 08:16
A. Must you 'has been' because light was shifted by.
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26 Mar 2012, 04:27
a is perfect, because, passive voice is rare in gmat, but passive voice í used in science , medical, technical writing style

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26 Mar 2012, 12:27
Its a pretty clear A.

B. Should be "has been shifted" as in A because the light has been shifted by the rapid motion of the galaxy away form the earth. Therefore incorrect.
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05 Apr 2012, 21:54
A but the moving galaxy is "doing" the shifting of the light. Thus, Has Been is the correct usage.
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13 Nov 2012, 07:42
has been shifted means the shifting has been done by somebody or something.

whereas has shifted means that a change has already occurred.

So i choose B as the shifting was done by something.
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08 Nov 2013, 05:52

In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has been shifted (toward the red, or long-wave, end of the light spectrum) by the rapid motion of the galaxy away from the Earth.

Now see B

In astronomy the term "red shift" denotes the extent to which light from a distant galaxy has shifted
by the rapid motion of the galaxy away from the Earth.

Has shifted by is incorrect.

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17 Nov 2013, 07:56
Hi,

- Basic question:

I know than we need "from...to". But can we say "from... toward" also?

Thanks
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29 Jan 2015, 08:55
Hello from the GMAT Club VerbalBot!

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Re: Astronom   [#permalink] 29 Jan 2015, 08:55

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