Though caterpillars transform large amounts of plant matter : GMAT Sentence Correction (SC)
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# Though caterpillars transform large amounts of plant matter

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Though caterpillars transform large amounts of plant matter [#permalink]

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21 Jun 2009, 02:19
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Though caterpillars transform large amounts of plant matter into animal tissue and wastes, and therefore hold an important place in the food chain, they are so voracious that they have become an economic threat to farmers whose crops they eat.

(A) they are so voracious that they have become an economic
(B) they are of such voracity, they have become an economical
(C) so voracious are they as to become an economical
(D) such is their voracity, they become an economic
(E) there is so much voracity that it has become an economical
[Reveal] Spoiler: OA

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21 Jun 2009, 05:40
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perfectstranger wrote:
17. Though caterpillars transform large amounts of plant matter into animal tissue and wastes, and therefore hold an important place in the food chain, they are so voracious that they have become an economic threat to farmers whose crops they eat.
(A) they are so voracious that they have become an economic
(B) they are of such voracity, they have become an economical
(C) so voracious are they as to become an economical
(D) such is their voracity, they become an economic
(E) there is so much voracity that it has become an economical

economic: related to money/fiscal

economical: cheap/inexpensive

Need the former. A/D

A uses correct idiom so that and uses correct tense
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21 Jun 2009, 11:24
The answers has to be between A and D...But unless there is a typing mistake in D, I think D has a missing verb....And I will choose A...
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21 Jun 2009, 18:25
so....as to....
is the idiom used...
IMO C
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21 Jun 2009, 21:26
I'll vote for A. "Economical" changes the meaning of the original sentence.
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22 Jun 2009, 01:38
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17. Though caterpillars transform large amounts of plant matter into animal tissue and wastes, and therefore hold an important place in the food chain, they are so voracious that they have become an economic threat to farmers whose crops they eat.
(A) they are so voracious that they have become an economic -->So.. adj... that --> IMO
(B) they are of such voracity, they have become an economical--> such ... --> Loser
(C) so voracious are they as to become an economical-->economical change the meaning--> Loser
(D) such is their voracity, they become an economic ---> such is awkward--> Loser
(E) there is so much voracity that it has become an economical---> it has become --> awkward
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22 Jun 2009, 07:09
C is definitely incorrect...
IMO A
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22 Jun 2009, 08:03
There's nothing wrong with the sentence. A

B) economical is the wrong word to use
C) modifier problem, awkward wording, and wrong use of economical
D) awkward wording and possible modifier problem
E) subject verb agreement
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22 Jun 2009, 08:53
A A A It was an easy one
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03 Jun 2010, 20:06
easy one A
Economical change the meaning of the sentence so B,S and E out
C-is awkward
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04 Jun 2010, 10:35
It is clearly between A and D but "that" is necessary in this sentence so D is out.
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05 Jun 2010, 00:06
Ok. No need to break head on "so x as to y" ------------> this structure is very tricky

Its boils down to A Vs C

I rather will concentrate on which is passive.

Among A and C. C is passive. OUT

A is active. caterpillars is still the subject
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05 Jun 2010, 00:16
A similar check is here. Active Vs Passive

Many writers of modern English have acquired careless habits that damage the clarity of their prose, but these habits can be broken if they are willing to take the necessary trouble.
(A) but these habits can be broken
(B) but these habits are breakable
(C) but they can break these habits
(D) which can be broken
(E) except that can be broken

Hint : which is active?
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10 Jun 2010, 07:26
I will go for (C)

Many writers of modern English have acquired careless habits that damage the clarity of their prose, but these habits can be broken if they are willing to take the necessary trouble.

(C) but they can break these habits
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10 Jun 2010, 13:46
Though caterpillars transform large amounts of plant matter into animal tissue and wastes, and therefore hold an important place in the food chain, they are so voracious that they have become an economic threat to farmers whose crops they eat.

(A) they are so voracious that they have become an economic
(B) they are of such voracity, they have become an economical
(C) so voracious are they as to become an economical
(D) such is their voracity, they become an economic
(E) there is so much voracity that it has become an economical

if option C where "so voracious are they as to become an economic"...
would it be a correct GMAT sentence?

Also, I would appreciate if someone could shed more light on the distinction between
the two idioms: "so X as to Y" and "so X that Y"

Thanks.
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10 Jun 2010, 18:27
if option C where "so voracious are they as to become an economic"...
would it be a correct GMAT sentence?

No, not here - as to become states a future possibility - whose crops they eat is what the sentence conveys not that whose crops they will eat.

The mentioned effect has already taken place
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11 Jun 2010, 11:19
mailnavin1 wrote:
if option C where "so voracious are they as to become an economic"...
would it be a correct GMAT sentence?

No, not here - as to become states a future possibility - whose crops they eat is what the sentence conveys not that whose crops they will eat.

The mentioned effect has already taken place

Thanks for the response. But I would also appreciate if you could assess the sentence just on its own.
Is it a correct expression, at least, barring in mind the difference in tenses from the original sentence.
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11 Jun 2010, 19:56
Yes, then its right. It becomes a pure idiom test. So X as to - this is a correct idiom
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27 Jul 2010, 10:55
I got for A. The word economical changes the original meaning!!
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27 Jul 2010, 20:28
IMO A...

So ... as to is a wrong idiom as per the MGMAT
Choice A clearly speaks.. so <adjective> that...

"they are so voracious that they have become an economic"
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Re: Caterpillars   [#permalink] 27 Jul 2010, 20:28

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