As the etched lines on computer memory chips have become : GMAT Sentence Correction (SC)
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# As the etched lines on computer memory chips have become

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As the etched lines on computer memory chips have become [#permalink]

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18 Jan 2005, 05:04
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As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased.
(A) the chipsâ€™ circuits more complex, both the power of the chips and the electronic devices they drive have
(B) the chipsâ€™ circuits more complex, the power of both the chips and the electronic devices they drive has
(C) the chipsâ€™ circuits are more complex, both the power of the chips and the electronic devices they drive has
(D) their circuits are more complex, the power of both the chips and the electronic devices they drive have
(E) their circuits more complex, both the power of the chips and the electronic devices they drive have
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Director
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18 Jan 2005, 06:08
'A' - makes it sound like the power & the electronic device they drive have increased.
'B' - does not alter the intent and maintains the subject-verb agreemnt - the power .....has increased - this would be my choice
'C' - memory chips have become thinner and the chipsâ€™ circuits are more complex - parallelism
'D' - same as 'C'
'E' - same as 'A'

Last edited by rthothad on 18 Jan 2005, 06:15, edited 1 time in total.
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18 Jan 2005, 06:19
B is the best. Used 'both' at the appropriate position. 'power has' is right.
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18 Jan 2005, 06:23
OA is (B)
Should (B) be like this "the chipsâ€™ circuits ARE more complex, "? Can someone explain the grammar part in (B)?
I think the word "and" connects two clause "the etched lines on computer memory chips have become thinner" and "the chipsâ€™ circuits ARE more complex". How is it possibile to connect one CLAUSE and one PHRASE (as in (B)) with "and"? This does not make sense to me.
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18 Jan 2005, 07:02
I just don't understand the grammatical construction in (B).
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18 Jan 2005, 07:07
As far as I remember this one is from the official guide so must be ad minima explained by ets.
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18 Jan 2005, 09:32
qhoc0010 wrote:
OA is (B)
Should (B) be like this "the chipsâ€™ circuits ARE more complex, "? Can someone explain the grammar part in (B)?
I think the word "and" connects two clause "the etched lines on computer memory chips have become thinner" and "the chipsâ€™ circuits ARE more complex". How is it possibile to connect one CLAUSE and one PHRASE (as in (B)) with "and"? This does not make sense to me.

This one is from ETS paper test. Can someone answer my question?
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18 Jan 2005, 11:14
qhoc,
The sentence is saying that the chips have become thinner and more complex at the same time. The keyword here is "as" . introducing the "are" would mean that chip circuits are definitely complex. The sentence says they are becoming complex but are not complex yet.

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18 Jan 2005, 11:26
B is my answer..."both the power of the..." (in A) versus "the power of both the.." (in B) was what made me pick B
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18 Jan 2005, 18:15
Sorry for the late reply...
Here's why I chose B..
As the etched lines on computer memory chips have become thinner and _________________________________________________ vastly increased.

In the given sentence we need to talk about the POWER of BOTH the elements " Chips and Electronic devices" and then POWER being singular should be followed by "has"...and B fulfils the requirement.
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19 Jan 2005, 11:25
But look at the first part

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits more complex...

If you say "are" is not appropriate, there must be some kind of "verb" here right? Such as:

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits become more complex...

I don't understand why there is a "phrase" connected with a clause by "and"
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19 Jan 2005, 13:05
I thought (B) looked right but can someone give a grammatical explanation as to why

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits are more complex, the power of both the chips and the electronic devices they drive has vastly increased
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19 Jan 2005, 19:45
qhoc0010 wrote:
But look at the first part

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits more complex...

If you say "are" is not appropriate, there must be some kind of "verb" here right? Such as:

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits become more complex...

I don't understand why there is a "phrase" connected with a clause by "and"

qhoc, the reason why B is correct is because it has to do with the concept of ellipsis; B's structure is called an elliptical clause. Let's look at it.

As the etched lines on computer memory chips have become thinner and the chipsâ€™ circuits [have become] more complex, the power of both the chips and the electronic devices they drive has vastly increased

What is within the brackets is ellipsed but you still can understand what the sentence conveys.
Read on about ellipsis and elliptical clauses:
http://webster.commnet.edu/grammar/clau ... al_clauses
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20 Jan 2005, 12:30
So it is OK to say this:

When the cat becomes older and the dog bigger .....

When the cat becomes older and the becomes dog bigger .....
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20 Jan 2005, 14:09
When the cat becomes older and the dog bigger

is absolutely correct!
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20 Jan 2005, 14:11
qhoc0010 wrote:
So it is OK to say this:

When the cat becomes older and the dog bigger .....

When the cat becomes older and the becomes dog bigger .....

The first sentence is best but the second sentence could be rephrased as follows: When the cat becomes older and the dog becomes bigger
Although the above is good, you can see that by "ellipsing" the verb, the sentence is much more concise(cutting out the unnecessary repetition of "becomes") and makes it for an economical use of words without ruining the author's intent
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[#permalink] 20 Jan 2005, 14:11
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# As the etched lines on computer memory chips have become

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