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Hurricanes

by tinashine20 » Thu Nov 29, 2012 8:23 pm
Hurricanes that are 40 to 50 percent more powerful than is now typical could be among the most costly results of the greenhouse effect, the trapping of heat in the atmosphere due to increased levels of industrial gases.

A. is now typical could be among the most costly results of the greenhouse effect, the trapping of heat
B. typical now could be among the greenhouse effect's most costly results, when heat is trapped
C. it is typical for them to be now could be among the most costly results of the greenhouse effect, trapped heat
D. they typically are now could be among the greenhouse effect's most costly results, trapping heat
E. they typically are now could be among the most costly results from the greenhouse effect, when there is heat trapped
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by theachiever » Thu Nov 29, 2012 10:06 pm
Hurricanes that are is plural so it should have something corresponding to it.Hence we can eliminate A and C.D seems too wordy and awkward.B does not the have the relevant element to support the subject Hurricanes that are.

E seems to be concise and clear.The answer is E
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by Sapana » Fri Jan 11, 2013 10:58 pm
What is the source of this question?
As theachiever mentioned, the later part of the sentence needs plural, so we are left with D and E. In D, trapping heat ... is weird.
E is better but not conviced my when there is...

ANy expert advice on this??
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by Brian@VeritasPrep » Mon Jan 14, 2013 4:39 pm
Be careful on this one - there are some definite flaws in the final phrase in both D and E.

In D, that final modifier "trapping heat in the atmosphere" modifies "hurricanes" (it's a participial -ing modifier at the end of the sentence, so it modifies the main subject), and that's not correct (it's the greenhouse effect that does that, not the hurricanes).

In E, the word "when" is a relative pronoun and needs to modify an event or point in time, and "the greenhouse effect" isn't that.

Keep in mind that the phrase "that are 40 to 50% more powerful..." is a modifier, telling us more about hurricanes. So actually you don't *need* a parallel verb to start the underline, since that verb doesn't necessarily apply to "hurricanes". In choice A, "hurricanes" isn't the subject of "is". "is" is part of a comparison - think of it this way: you could definitely write the sentence "Today's least powerful smartphones feature more computing power than was even imaginable to the the top computer scientists of the 1950s." You can do that because the comparison is between "power" and "(the power that) was imaginable back then".

So I'd say A is actually correct here. The subject-verb issue is a little bit of misdirection to throw people off the scent of the modifier issues at the end of the sentence.
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by Practicegmat » Mon Jan 14, 2013 8:27 pm
could this be clarified in more details?

we have "more than" . So we need a comparison.But I am not able to identify the comparison in (a).
Please clarify
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by srcc25anu » Sun Feb 17, 2013 12:19 pm
IMO E (please post the OA)
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