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Using hidden cameras that are triggered by motion, reclusive

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Using hidden cameras that are triggered by motion, reclusive [#permalink] New post 12 Mar 2011, 15:04
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A
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D
E

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86% (01:13) correct 14% (00:00) wrong based on 7 sessions
Using hidden cameras that are triggered by motion, reclusive animals threatened by extinction are studied by biologists.

a. reclusive animals threatened by extinction are studied by biologists
b. reclusive animals, threatened by extinction, are studied bby biologists
c. reclusive animals are studied by bilogists that are threatened by extinction
d. biologists are studying reclusive animals that are threatened by extinction
e. biologists are studying reclusive animals threatened by extinction

oa is e. how do we diffrentiate between d and e?
[Reveal] Spoiler: OA
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Re: sc [#permalink] New post 12 Mar 2011, 18:05
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D and E left.

D has extra that. gmat doesnt like the pronoun ambiguity - so it eliminates the extra pronoun.
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Re: sc [#permalink] New post 12 Mar 2011, 18:29
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if an answer choice distinguishes only between the use of that (evrythgn else remainig the same), make sure the verb is not a reporting one (such as indicate,claim contend etc-pg 212 MGMAT) then read both the choices with /without that. If the choice without that is clear in its meaning, go for it.
That usage can be tricky. Reporting verbs always take that also
if you have a noun referring to a feeling or an idea, than you're always going to need to use "that" if a description of that feeling or idea follows.
e.g.
the notion that his own family would vote against him
confidence that the economy will improve
(got the above examples from a forum)
these are the only 2 ones I know. there may be many.

But i seriosuly do not think any original GMAT Q would want us to decide only between that and lack of it.. there would sure be something else to fall upon.

preptime wrote:
Using hidden cameras that are triggered by motion, reclusive animals threatened by extinction are studied by biologists.

a. reclusive animals threatened by extinction are studied by biologists
b. reclusive animals, threatened by extinction, are studied bby biologists
c. reclusive animals are studied by bilogists that are threatened by extinction
d. biologists are studying reclusive animals that are threatened by extinction
e. biologists are studying reclusive animals threatened by extinction

oa is e. how do we diffrentiate between d and e?

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Re: sc [#permalink] New post 12 Mar 2011, 19:49
will try to apply these, thank you
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Re: sc [#permalink] New post 13 Mar 2011, 08:42
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IMO, there isn’t any critical difference between D and E; E uses a past participle phrase ‘threatened’ while D unnecessarily converts it into a longer subordinate clause. In terms of precision alone, I think E instantly wins.

But I have a different issue with this example regarding the use of the main verb, ‘are studying”. Is it right to use a progressive tense verb for an event that seems to be the order of the day and that which seems likely to extend even in future? Isn’t the use of a simple present as biologists ‘study’ a better one than “are studying”?

In other words, when the fine distinction between ‘threatened’ and ‘that are threatened’ is big enough to separate the grain from the chaff, how can a glaringly inappropriate use of tense be ignored?
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Re: sc [#permalink] New post 13 Mar 2011, 09:16
believe, 'using' and 'studying' should be parallel, if 'using' is placed in the initial clause
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Re: sc [#permalink] New post 13 Mar 2011, 09:22
Expert's post
Quote:
Using hidden cameras that are triggered by motion, reclusive animals threatened by extinction are studied by biologists.

a. reclusive animals threatened by extinction are studied by biologists
b. reclusive animals, threatened by extinction, are studied bby biologists
c. reclusive animals are studied by bilogists that are threatened by extinction
d. biologists are studying reclusive animals that are threatened by extinction
e. biologists are studying reclusive animals threatened by extinction

oa is e. how do we diffrentiate between d and e?


You can reach Answer (E) in < 15 seconds. Here's how:

Step 1) I see an -ING verb that starts the phrase and then gets separated by the comma. So I know the phrase must describe the subject of the main sentence.

Step 2) I recognize that "reclusive animals" don't "use hidden cameras" so I scan through the answer choices for other options. I see (D) and (E) mention "biologists" so I narrow it down to those 2.

Step 3) I read through both (D) and (E)--both are grammatically correct---but on the GMAT exam, if I'm choosing between two good choices---always choose the simpler one. If you can express the same thing in fewer words--why choose the longer answer choices? It's not testing me on "that" versus "which"--it's just simply testing me on whether I should include "that" at all.

In this case, go simple, and choose (E). No need to think about fancy grammar rules like "pronoun ambiguity" or "subordinate clause" or "reporting verbs."

You see? Not bad! Didn't have to think that much and still arrived at the right answer!
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Re: sc [#permalink] New post 13 Mar 2011, 09:26
+1 E

This is a matter of concision.
It's more efficient writing "animals threatened" than "animals THAT ARE threatened".
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Re: sc [#permalink] New post 13 Mar 2011, 09:27
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daagh wrote:
But I have a different issue with this example regarding the use of the main verb, ‘are studying”. Is it right to use a progressive tense verb for an event that seems to be the order of the day and that which seems likely to extend even in future? Isn’t the use of a simple present as biologists ‘study’ a better one than “are studying”?


So you say "biologists study" should be better than "biologists are studying"----ok sure.
But more importantly, is this what the GMAT guys are testing you on here? No! They are not asking you come up with the most optimal way of expressing an idea. They are asking you to choose the BEST option from what is available.

Since there's nothing wrong with "biologists are studying" and the option for "biologists study" does not exist in the answer choices, don't waste time thinking about alternatives choices that aren't on the exam question. Just choose the best one. That's it!
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Re: sc [#permalink] New post 13 Mar 2011, 09:49
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Preptime: believe, 'using' and 'studying' should be parallel, if 'using' is placed in the initial clause

Not so; you need //ism only between comparable things. ‘Using’ is a present participle while "are studying’ is a working verb. Both need not be parallel. Look at the following example (I think this is an OG question)

Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy

A. Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy
B. Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device
C. Detecting fetal heartbeats by the twelfth week of pregnancy, a physician can use a Doppler Ultrasound device
D. By the twelfth week of pregnancy, fetal heartbeats can be detected using a Doppler ultrasound device by a physician
E. Using a Doppler ultrasound device, a physician can detect fetal heartbeats by the twelfth week of pregnancy

The correct answer is E. You can see that ‘using’ isn’t paralleling ‘can detect’.
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Re: sc [#permalink] New post 13 Mar 2011, 09:54
i understand, thank you for that example
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Re: sc [#permalink] New post 13 Mar 2011, 12:33
preptime wrote:
Using hidden cameras that are triggered by motion, reclusive animals threatened by extinction are studied by biologists.

a. reclusive animals threatened by extinction are studied by biologists
b. reclusive animals, threatened by extinction, are studied bby biologists
c. reclusive animals are studied by bilogists that are threatened by extinction
d. biologists are studying reclusive animals that are threatened by extinction
e. biologists are studying reclusive animals threatened by extinction

oa is e. how do we diffrentiate between d and e?



D is wordy. GMAT prefers simple, clear sentence.
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Re: sc   [#permalink] 13 Mar 2011, 12:33
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