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alicezyk
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Re: GMAT Prep II: Unlike crested wheatgrass

by alicezyk Sat Nov 17, 2012 8:36 am

jlucero Wrote:The comma isn't there to offset the V-O but to offset the phrase "allowing for greater enrichment of the soil."

If you took that phrase out, the sentence would be:

Native North American grasses develop an extensive root system but do not grow to be very tall.

No commas, so your two examples should also not include commas.

Thanks so much Joe! I just realized how stupid my question was..
Thanks again :P
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Re: GMAT Prep II: Unlike crested wheatgrass

by jlucero Tue Nov 20, 2012 5:29 pm

Your question wasn't stupid. But even if it were, better stupid questions while studying than stupid mistakes on the GMAT!
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Re:

by yuanhongzhi0830 Mon Aug 19, 2013 5:38 am

Guest Wrote:Unlike crested wheatgrass, an alien species from Siberia that forms only shallow roots and produces tall above-ground shoots, native North American grasses develop an extensive root system, allowing for greater enrichment of the soil, but do not grow to be very tall.

(A) native North American grasses develop an extensive root system, allowing for greater enrichment of the soil, but do not grow to be very
(B) native North American grasses develop an extensive root system, which allows for their greater enrichment of the soil, but without growing to be that
(C) the root system of native North American grasses is extensive, allowing for greater enrichment of the soil, but they do not grow to be very
(D) the root system of native North American grasses is more extensive, allowing for the greater enrichment of the soil, but these grasses do not grow to be very
(E) the extensiveness of the root system of native North American grasses allows for their greater enrichment of the soil, but they do not grow to be that

1,
In B, I think "their" can only refer native North American grasses ?
2,
In A, "allowing for greater enrichment of the soil" modify
the entire clause of "native North American grasses develop an extensive root system"
or modify the "an extensive root system" ?

Thanks in advance.


Hi, I have a problem here, since the allowing for part is to modify the entire clause before, it should be under one of the two situations
(1) its a direct consequence of the previous action (???)
(2) it happened simultaneously with the previous action (X)
I am a little confused #1 situation is right for this, because from what I can see, the "allowing part" is more like the purpose not the result.
That's why I choose B, after removing the modifier, the sentence reads as: Grasses have a root system but without growing to be that tall.

Thanks a lot if someone can explain this to me.
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Re: Re:

by jlucero Fri Aug 30, 2013 9:04 pm

yuanhongzhi0830 Wrote:
Guest Wrote:Unlike crested wheatgrass, an alien species from Siberia that forms only shallow roots and produces tall above-ground shoots, native North American grasses develop an extensive root system, allowing for greater enrichment of the soil, but do not grow to be very tall.

(A) native North American grasses develop an extensive root system, allowing for greater enrichment of the soil, but do not grow to be very
(B) native North American grasses develop an extensive root system, which allows for their greater enrichment of the soil, but without growing to be that
(C) the root system of native North American grasses is extensive, allowing for greater enrichment of the soil, but they do not grow to be very
(D) the root system of native North American grasses is more extensive, allowing for the greater enrichment of the soil, but these grasses do not grow to be very
(E) the extensiveness of the root system of native North American grasses allows for their greater enrichment of the soil, but they do not grow to be that

1,
In B, I think "their" can only refer native North American grasses ?
2,
In A, "allowing for greater enrichment of the soil" modify
the entire clause of "native North American grasses develop an extensive root system"
or modify the "an extensive root system" ?

Thanks in advance.


Hi, I have a problem here, since the allowing for part is to modify the entire clause before, it should be under one of the two situations
(1) its a direct consequence of the previous action (???)
(2) it happened simultaneously with the previous action (X)
I am a little confused #1 situation is right for this, because from what I can see, the "allowing part" is more like the purpose not the result.
That's why I choose B, after removing the modifier, the sentence reads as: Grasses have a root system but without growing to be that tall.

Thanks a lot if someone can explain this to me.


I'm not sure where you get these two rules (they seem logical to me, but let's post where you get them from so everyone has a place to refer back to), but it seems like this works well with option 1. What happens when the grasses grow an extensive root system- they are better able to enrich the soil.
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Re:

by eggpain24 Mon Aug 11, 2014 9:10 pm

RonPurewal Wrote:
Anonymous Wrote:In B, I think "their" can only refer native North American grasses ?


correct.

the use of the pronoun here is problematic, though, because the exact meaning of the original sentence is more general: it's the development of the extensive root system, in general, that allows for the enrichment of the soil.
to say that the grasses themselves allow for that enrichment isn't quite accurate.

2,
In A, "allowing for greater enrichment of the soil" modify
the entire clause of "native North American grasses develop an extensive root system"
or modify the "an extensive root system" ?


the former.

when you have an -ING MODIFIER PRECEDED BY A COMMA, it's an adverbial modifier that modifies the entire preceding clause.
the comma is crucial here, by the way; if it's not there, than the -ing modifier is actually an adjectival modifier that modifies the preceding noun.


Thanks in advance.


HI Ron
I got A easily

But I have some doubts regarding the use of “comma+ving” here in correct choice

“allowing xxx” can be construed as the consequence of ”develop an extensive root system“(the preceding clause)

but I am wondering “verbing” also needs to make sense with the subject of the preceding clause,namely the “American grass”

I think root system is the one who actually enable enrichment

Am I thinking too strict here?

thanks in advance~
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Re: Re:

by FanPurewal Tue Aug 12, 2014 1:22 am

eggpain24 Wrote:
RonPurewal Wrote:
Anonymous Wrote:In B, I think "their" can only refer native North American grasses ?


correct.

the use of the pronoun here is problematic, though, because the exact meaning of the original sentence is more general: it's the development of the extensive root system, in general, that allows for the enrichment of the soil.
to say that the grasses themselves allow for that enrichment isn't quite accurate.

2,
In A, "allowing for greater enrichment of the soil" modify
the entire clause of "native North American grasses develop an extensive root system"
or modify the "an extensive root system" ?


the former.

when you have an -ING MODIFIER PRECEDED BY A COMMA, it's an adverbial modifier that modifies the entire preceding clause.
the comma is crucial here, by the way; if it's not there, than the -ing modifier is actually an adjectival modifier that modifies the preceding noun.


Thanks in advance.


HI Ron
I got A easily

But I have some doubts regarding the use of “comma+ving” here in correct choice

“allowing xxx” can be construed as the consequence of ”develop an extensive root system“(the preceding clause)

but I am wondering “verbing” also needs to make sense with the subject of the preceding clause,namely the “American grass”

I think root system is the one who actually enable enrichment

Am I thinking too strict here?

thanks in advance~


HI
I think the *subject should apply to the VERBing* rule is not a strict
and absolute rule.

and in the choice A :

native North American grasses develop an extensive root system, allowing for greater enrichment of the soil, but do not grow to be very ...

*allowing* makes sense with the ACTION (grasses develop system)
,and it is enough.

In the comma + -ing structure, the subject should be, among all possible nouns, the one most directly responsible for the "__ing" result.
However, the relation will usually still be indirect. (If the noun directly performs the action, then a normal subject+verb construction will almost always make more sense.)

E.g.,
Crime has decreased in our neighborhood, leading to an increase in property values.
—> The __ing makes sense with the action, but not with the subject.
Aggressive police patrols have decreased crime in our neighborhood, leading to an increase in property values.
—> This makes sense.
The police patrols didn't directly increase the property values—but they did so indirectly, by reducing crime.
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Re: GMAT Prep II: Unlike crested wheatgrass

by jnelson0612 Sat Sep 13, 2014 8:33 pm

Nice explanation, FanPurewal! I like your username too. :-)
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Re: GMAT Prep II: Unlike crested wheatgrass

by FanPurewal Fri Oct 10, 2014 8:58 am

hi instructors
is *without ...* in B WRONG?
thank you in advance
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Re:

by FanPurewal Fri Oct 10, 2014 11:09 am

RonPurewal Wrote:the use of the pronoun here is problematic, though, because the exact meaning of the original sentence is more general: it's the development of the extensive root system, in general, that allows for the enrichment of the soil.
to say that the grasses themselves allow for that enrichment isn't quite accurate.

(B) native North American grasses develop an extensive root system, which allows for their greater enrichment of the soil, but without growing to be that


haha hi ron
finally! i think i just find an error among your awesome explanations!

the color thing above.

the *which* in B is wrong, and you said B means *grasses allow..* is a mistake that distorts the meaning of sentence.

actually, in choice B, *allows* is not a plural form, so i think B means *an extensive root system allows*, which is also wrong in the context.

am i right?

thank you in advance :)
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Re: Re:

by RonPurewal Sat Oct 18, 2014 9:21 am

I'm not following you.

FanPurewal Wrote:actually, in choice B, *allows* is not a plural form, so i think B means *an extensive root system allows*, which is also wrong in the context.


what allows the grasses to enrich the soil to a greater extent?
the root system does.

so, the blue version is fine.


finally! i think i just find an error among your awesome explanations!


^^ this way of thinking is not going to help you learn things. it's not a contest.

i make mistakes all the time. if you find one, it'd be no more special than finding a penny on the ground.
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Re: GMAT Prep II: Unlike crested wheatgrass

by aflaamM589 Sat Mar 26, 2016 7:12 pm

Hello Ron,
Is the usage of that in B also problematic?
is this kind of usage acceptable/unacceptable in GMAT?
Thanks in advance.
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Re: GMAT Prep II: Unlike crested wheatgrass

by RonPurewal Sun Mar 27, 2016 11:22 am

that's an informal usage, yeah.
that kind of thing certainly won't be the only thing wrong with a choice, though.
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Re: GMAT Prep II: Unlike crested wheatgrass

by aflaamM589 Wed Mar 30, 2016 5:24 am

Thanks for the reply,
Besides their being problematic in B, is lack of parallelism also the fetal error in B?

native North American grasses develop an extensive root system
but
without growing to be that tall
--> nothing parallell to left side of but

Whereas parallelism(as you described) is perfect in A.
Thanks in advance
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Re: GMAT Prep II: Unlike crested wheatgrass

by RonPurewal Sat Apr 02, 2016 1:34 pm

correct.
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Re: GMAT Prep II: Unlike crested wheatgrass

by aflaamM589 Sun Aug 14, 2016 6:02 pm

Thank you very much.

Can B also be crossed out because it changes the meaning of A?
in A, grasses allow for enrichment whereas ,in B extensive root system allows for enrichment.

Thanks
Have a nice day