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# Not only do deep-sea divers risk nitrogen narcosis, often

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Not only do deep-sea divers risk nitrogen narcosis, often [#permalink]

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03 May 2009, 14:49
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Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but they also fall prey to decompression sickness, commonly known as the "bends", if they ascend too quickly.

a] Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but
b] Deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but
c] Nitrogen narcosis, often called "raptures of the deep", is risked by deep-sea divers if they descend below 200 feet, in addition
d] Descending below 200 feet causes deep-sea divers to risk nitrogen narcosis, often called "raptures of the deep" and
e] Not only does a deep-sea diver risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but
[Reveal] Spoiler: OA

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03 May 2009, 14:55
not only ...but also is right, so between A and E, A sounds more parallel to me

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04 May 2009, 08:39
Between A and E, I think it's A.

a] Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but

the verb 'do' and pronoun 'they' here are right for the the divers - plural.

Whats the OG?

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04 May 2009, 22:15
vscid wrote:
gmatprep09 wrote:
Between A and E, I think it's A.

a] Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but

the verb 'do' and pronoun 'they' here are right for the the divers - plural.

Whats the OG?

whats wrong with B?

the use of BUT in B is not correct. But is used to show contrast, which is not present in the sentence.

In E "a deep-sea diver" does not agree with "They".
I guess the answer is A.

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05 May 2009, 07:38
I go with A for parallelism, not only... but also.

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05 May 2009, 08:00
bandit wrote:
vscid wrote:
gmatprep09 wrote:
Between A and E, I think it's A.

a] Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep", if they descend below 200 feet, but

the verb 'do' and pronoun 'they' here are right for the the divers - plural.

Whats the OG?

whats wrong with B?

the use of BUT in B is not correct. But is used to show contrast, which is not present in the sentence.

In E "a deep-sea diver" does not agree with "They".
I guess the answer is A.

doesn't 'ascending' and 'descending' show contrast ?
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05 May 2009, 09:06
I missed it.... yup its a contrast.

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06 May 2009, 07:53
A is containing the right idiom..."not only ... but also" and is not having subject verb disagreement and modifier error...So the best answer for me is A.....
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Not only do deep-sea divers risk nitrogen narcosis, often [#permalink]

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17 Jan 2011, 23:37
Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep," if they descend below 200 feet, but they also fall prey to decompression sickness, commonly known as "the bends," if they ascend too quickly.

a.Not only do deep-sea divers risk nitrogen narcosis, often called "raptures of the deep," if they descend below 200 feet, but
b.Deep-sea divers risk nitrogen narcosis, often called "raptures of the deep," if they descend below 200 feet, but
c.Nitrogen narcosis, often called "raptures of the deep," is risked by deep-sea divers if they descend below 200 feet, in addition
d.Descending below 200 feet causes deep-sea divers to risk nitrogen narcosis, often called "raptures of the deep," and
e. Not only does a deep-sea diver risk nitrogen narcosis, often called "raptures of the deep," if they descend below 200 feet, but

does the correct answer sounds awkward only for me? Choose one and look at the explanations it does not seem to be the same as the question..

Explanations:
[Reveal] Spoiler:
"Not only...but also" must connect similar terms. "Deep sea divers not only risk" and "but also fall prey" are correctly paralleled in (A). (B) would work if "and" was substituted for "but." There are two problems with (C): "nitrogen narcosis... is risked" and the fact that (C) is actually two complete sentences incorrectly linked with a comma. You'd need a period after "feet," and a capital "i" in "in." In (E), "they" doesn't refer clearly and unambiguously to one specific plural noun. In (A), "they" can only mean "divers."

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18 Jan 2011, 07:04

'not only .... but also' ... correct idiom

E) Not only does a deep-sea DIVER risk ... but THEY also fall

A is parallel and uses the correct idiom

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18 Jan 2011, 08:01
dimitri92 wrote:

'not only .... but also' ... correct idiom

E) Not only does a deep-sea DIVER risk ... but THEY also fall

A is parallel and uses the correct idiom

do you find it OK for that idiom to be interrapted ? I mean not only ... but THEY also ?
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18 Jan 2011, 08:33
I have two objections to consider A the right choice. First, as every one has pointed out, A woefully is faulting on the correlative conjunction llism by bringing in a pronoun after the conjunction but in the second leg , while a verb should be present there to run in tandem with the verb ‘do’. Second, the use of the pronoun ‘they’ is redundant in my opinion, because, in two part sentences, where upon the subject of the first part can stand for the subject of the second part, the use of a pronoun Is unnecessary and wrong. Consider this:

We say; ‘Not only did Tom break his leg in the accident but also fractured his arm’.

We don’t say,

‘Not only did Tom break his leg in the accident but also he fractured his arm

Can the choice A stand the rigor of GMAT?
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18 Jan 2011, 08:56
daagh wrote:
I have two objections to consider A the right choice. First, as every one has pointed out, A woefully is faulting on the correlative conjunction llism by bringing in a pronoun after the conjunction but in the second leg , while a verb should be present there to run in tandem with the verb ‘do’. Second, the use of the pronoun ‘they’ is redundant in my opinion, because, in two part sentences, where upon the subject of the first part can stand for the subject of the second part, the use of a pronoun Is unnecessary and wrong. Consider this:

We say; ‘Not only did Tom break his leg in the accident but also fractured his arm’.

We don’t say,

‘Not only did Tom break his leg in the accident but also he fractured his arm

Can the choice A stand the rigor of GMAT?

Thank you daagh,

indeed A is wierd here. But this is a question from Kaplan offcial practice.
I think that A is the best from the worst.
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18 Jan 2011, 09:36
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+1 A for me.
As Pkit said, A is the best of the worst. I do not find any problem with the idiom not only do "deep sea divers (they) .... but they also.

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18 Jan 2011, 09:37
@Pkit: Is it so? Coming as it is from the stable of Kaplan, there must be some reason why Kaplan, the grandpa of Test preps, has forborne such technical incongruities; obviously the intention may not be to train people to find the best among the worst. But it is true that choice A is better than the others, as they seem to have been added just to fill up the rest of the choices. But thanks to Kaplan for the opportunity to delve into some aspects of correlative conjunctions and their llism.
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18 Jan 2011, 09:45
thank you guys,

daagh this SC wondered me a lot too.

There is the explanation from Kaplan.

""Not only...but also" must connect similar terms. "Deep sea divers not only risk" and "but also fall prey" are correctly paralleled in (A). (B) would work if "and" was substituted for "but." There are two problems with (C): "nitrogen narcosis... is risked" and the fact that (C) is actually two complete sentences incorrectly linked with a comma. You'd need a period after "feet," and a capital "i" in "in." In (E), "they" doesn't refer clearly and unambiguously to one specific plural noun. In (A), "they" can only mean "divers.""

As you may see in theri explanations they say not only but also. but in choice A it is not so. I think it may be poorly constructed question.

Daagh you see you left them and the quality diminishes
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20 Jan 2011, 13:22
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Hi folks,

Sentence Correct question ask you to pick the best answer possible--which isn't the same as a perfect answer. (A) definitely sounds fishy, but it gets the idiom right while maintaining parallelism between its elements. The sentence would probably feel more natural if it were rewritten entirely as "Deep-sea divers not only risk...but also fall prey...". However, it IS okay to break up the 'not only...but also' idiom with a pronoun; since every other answer makes an error in grammatical or idiomatic construction, and (A) does not, (A) must be correct even though it grates our ears.

That said, Pkit, you have spotted an error in our explanation: we incorrectly quote the original sentence, and that could definitely cause confusion. Sorry if our mistake made things more challenging than they needed to be, and thanks for calling it to our attention. Can the OP please tell me the specific Kaplan source that this came from so I can flag it for review?

Thanks!
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Not only do deep - sea drivers risk nitrogen narcosis ,often [#permalink]

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23 Apr 2013, 23:27
Not only do deep - sea drivers risk nitrogen narcosis ,often called "raptures of the deep",if they descend below 200 feet ,but they also fall prey to decompression sickness,commonly known as "the bends",if they ascend too quickly.

(A)Not only do deep - sea drivers risk nitrogen narcosis ,often called "raptures of the deep",if they descend below 200 feet ,but
(B)Deep-sea drivers risk nitrogen narcosis,often called "raptures of the deep",if they descend below 200 feet,but
\(C)Nitrogen narcosis,often called "raptures of the deep",is risked by deep-sea drivers if they descend below 200 feet,in addition
(D)The descending of deep-sea drivers to below 200 feet causes them risking nitrogen narcosis,often called "raptures of the deep",and
(E)Not only does a deep-sea driver risk nitrogen narcosis,often called "raptures of the deep",if they descend below 200 feet,but

Need every option`s explanation.

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Re: Not only do deep - sea drivers risk nitrogen [#permalink]

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24 Apr 2013, 17:48
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Hi Mun
I m sure that...u would have able to zero it down to A and E......E has a hidden S_V error..check carefully...."It initially introduces THE TERM A DEEP SEA DIVER and than later uses pronoun THEY to refer back...

Rest all options can be eliminated they lack..NOT ONLY..........BUT ALSO consstruction

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Re: Not only do deep - sea drivers risk nitrogen [#permalink]

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24 Apr 2013, 22:56
Let me try to explain this -

(A)Not only do deep - sea drivers risk nitrogen narcosis ,often called "raptures of the deep",if they descend below 200 feet ,but
This option has the correct use of "Not only ...but also ". Each usage of "they" alludes to sea divers ( or is it drivers??) only and there is no pronoun ambiguity.

(B)Deep-sea drivers risk nitrogen narcosis,often called "raptures of the deep",if they descend below 200 feet,but
Here "but they also" is not idiomatic. There is no "Not only"

(C)Nitrogen narcosis,often called "raptures of the deep",is risked by deep-sea drivers if they descend below 200 feet,in addition
The option here wrongly suggests that Nitrogen narcosis is risked by deep-sea drivers. "Risked" is exposing something to danger. The meaning is clearly nonsensical.

(D)The descending of deep-sea drivers to below 200 feet causes them risking nitrogen narcosis,often called "raptures of the deep",and
Same as C + they also is not idiomatic.

(E)Not only does a deep-sea driver risk nitrogen narcosis,often called "raptures of the deep",if they descend below 200 feet,but
Same as D.

Hope this helps!

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Re: Not only do deep - sea drivers risk nitrogen   [#permalink] 24 Apr 2013, 22:56

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