Five hundred million different species of living creatures : GMAT Sentence Correction (SC)
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# Five hundred million different species of living creatures

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VP
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Five hundred million different species of living creatures [#permalink]

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25 Dec 2004, 00:11
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Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.

C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.

D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.

E. Of the five hundred million different species of living creatures that have
appeared on Earth, nearly 99 percent have vanished.

Last edited by chunjuwu on 26 Dec 2004, 17:18, edited 1 time in total.
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Director
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25 Dec 2004, 04:49
I think (E) as well. Here is my analysis. Let me know if it is wrong

A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
"nearly 99 percent of them vanishing" grammatically incorrect

B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
Not sure about the use of "nearly" here! This makes me think there is more than "five hundred million different species"

C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
"Vanished are" is awkward

D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
Should have "the" to identify "five hundred million different species" specifically.

E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
This one looks best.
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25 Dec 2004, 06:12
Between B & E, I think I will pick B.

B I believe is in active and E in passive voice...
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25 Dec 2004, 10:15
Gayathri,

Between B and E, I would pick E. "that appeared on earth have vanished" does 'that' refer to 500m or 99% of 500m. I am not sure...so, I pick E.

Can anyone explain?
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25 Dec 2004, 11:03
Between B & E, I pick E as present perfect for "have appeared" is much better than the past tense for "appeared". The latter one refers to a completed action and implies those creatures appeared in the past and disappeared at present.....

So I think E is better in terms of meaning.
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25 Dec 2004, 12:11
E uses both the correct tense structure and the definite article with the number of species.
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25 Dec 2004, 13:14
I will also Pick E. The reason given by Hcgmat is perfect!. I have to same reasoing for picking E. In B it seems "they appeared" it seems that the action is already completed.. and now no more exist..?

hth
Saurabh Malpani
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26 Dec 2004, 17:21
Hello folks

But the OA is B.

What's wrong in earth?
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26 Dec 2004, 18:19
ob wrote:
E uses both the correct tense structure and the definite article with the number of species.

welcome back ob

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26 Dec 2004, 18:49
chunjuwu wrote:
Hello folks

But the OA is B.

What's wrong in earth?

Can you please Tell us the source of the problem Because I don't know y I still don't How OA is B. I mean " that appeared" seems to be action completed.

I mean may be Iam wrong but any exp given in the book? or something like that?>

Thanks
Saurabh Malpani
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28 Dec 2004, 08:20
Welcome back OB, long time since you last posted.

I picked B

here is my 2 cents, please correct me if I am wrong

in B prepositional phrases "of living creatures" "on Earth" nicely modifies subject species

in E, dependent clause "Of the five hundred million different species of living creatures that have
appeared on Earth" is set off by another dependent clause "nearly 99 percent have vanished". I am not really sure what the second one is modifying. At least one of them should have been an independent clause
More over, construction of prepositional phrases

of the ..(.......) of living creatures .....(), seems little awkward
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28 Dec 2004, 12:14
I am sorry Praveen I was not able to understand your explanation. Moreover I think this question has more to do with TENSES rather than with some High Funda grammar.

Well I don't know somehow I am having trouble with tenses.
Any recoms!

Thanks
Saurabh Malpani
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28 Dec 2004, 12:59
saurabhmalpani wrote:
I am sorry Praveen I was not able to understand your explanation. Moreover I think this question has more to do with TENSES rather than with some High Funda grammar.

Well I don't know somehow I am having trouble with tenses.
Any recoms!

Thanks
Saurabh Malpani

Saurabh,
I never looked at it that way, you are right choice E has a tense problem too.

"that have appeared on Earth" in E means that different species of living creatures existed on earth and they no longer do

choice B correctly states appeared meaning few species still does.
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Praveen

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28 Dec 2004, 13:10
Hi! Praveen

I guess you are looking in the opposite way. Well E read "present perfect" that is action is still in process rt? Which Sounds better to my ears may be I am missing something. Whereas in B it reads " that appeared" well seems that the action is completed no more species are evolved now.

You c what I am trying to say?

Well I guess have to go and ask my prof now!
I hate bugging him. I am having some real problems with tenses.

Thanks
Saurabh Malpani
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28 Dec 2004, 19:24
Can anyone explain B pls ?

E does not explaIN 99 PERCENT OF what ?
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28 Dec 2004, 21:04
'E' has two present perfect forms which is not correct.
The sentence uses 'the five hundred million' to denote the number of species and it goes on to use 'have appeared on earth' which means that the number of living creatures are still increasing but that is not the intent of the sentence and moreover I do not think that one can use two present perfect forms in one sentence.
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30 Dec 2004, 19:33
Can someone compare choice D and E? how is the word "the" changing the meaning?
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29 Jun 2010, 14:34
OA is D.
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01 Sep 2010, 10:54
This one has not been clarified yet
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02 Sep 2010, 07:44
Hey noboru, the below explanation should help. I was not sure if I could paste the link in the forum, hence copying the explanation. The explanation is by a very good manhattan staff and so I can vouch the authenticity of the same.

Quote:
By StaceyKoprince

I'm not a fan of this source overall.

I'd go with E. Besides being generally awkward, B has a verb tense issue. It says "species that appeared" on earth. Appeared is simple past but, in this case, we want present perfect. We use past tense to discuss something that is completely over; we use present perfect to discuss something that started in the past but is either still true or still going on in the present. It is still true that the species appeared, so we want to say "have appeared" - which answer E does use and answer B does not.

Whats the diff when I say -
Of the five hundred million different species
vs
Of five hundred million different species

If you insert the word "the" you are indicating that you have already been talking about these species and you're referring to them again. Without the "the" - it's the first instance in which you are talking about them.

Hence E.
Re: SC0539   [#permalink] 02 Sep 2010, 07:44

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