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New techniques in thermal-scanning
i want to know the reason behind ruling out B. i don't see a reason to use present perfect in C. The tense usage in B is better. The only problem i can see in B is the construct and the positioning of the comparer (than)..... but is that a sufficient reason..???
Atulmangal, thank you, nice explanationkvitkod wrote:
this is an example of the ONLY pronoun that is allowed to go without standing for a noun.
THE ONLY PRONOUN ON THE GMAT THAT DON'T HAVE TO STAND FOR NOUNS:
It + description + that + complete sentence (independent clause)
It + description + to + verb (infinitive)
these "it"s DO NOT have to stand for nouns.
ALL other gmat pronouns must stand for nouns.
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Geva@EconomistGMAT
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It's not a tense issue, people. The present simple "make" bestows a 'general', something that is true meaning on the sentence (think "the earth rotates around its axis), while the present perfect 'have made' indicates that the techniques have recently made this possible without specifying when exactly. In the absence of context, both present perfect and present simple are viable options for this sentence.clock60 wrote:New techniques in thermal-scanning photography, a process that records radiation from surface areas, makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before.
a. makes it possible to study the effects of calefaction, or warming, of a river in greater detail than ever before
b. make it possible to study, in greater detail, the effects of calefaction, or warming, of a river than ever before
c. have made it possible to study in greater detail than ever before the effects of calefaction, or warming, of a river
d. make possible the study of the effects of calefaction, or warming, of a river in greater detail than it ever was before
e. has made it more possible than ever before to study in greater detail the effects of calefaction, or warming, of a river
guys please share your ideas about B vs C
source Gprep
The real issue with B is the mis-location of the comparison "than ever before". Generally speaking, things should be close to the things they talk about / refer to / modify. C uses the right form, as it first completes the comparison "study in greater detail than ever before", then moves on to talk about what exactly it is possible to study.
i received a private message regarding this problem.
first, note that this problem is not from GMAT PREP -- a quick internet search reveals that it is from the old ETS paper exams, and that it has also apparently been lifted by "1000sc".
the fatal flaw in choice (b) is its needlessly splitting the modifier "in greater detail than ever before". i can't see any reason to split this modifier in the first place -- i.e., i can't think of any constructions that could be legitimately inserted into it -- but the comma placed after "in greater detail" is especially heinous. that comma totally changes the meaning, because the sentence is now basically just saying "in greater detail", rather than saying "in greater detail than ever before" as it's supposed to.
first, note that this problem is not from GMAT PREP -- a quick internet search reveals that it is from the old ETS paper exams, and that it has also apparently been lifted by "1000sc".
the fatal flaw in choice (b) is its needlessly splitting the modifier "in greater detail than ever before". i can't see any reason to split this modifier in the first place -- i.e., i can't think of any constructions that could be legitimately inserted into it -- but the comma placed after "in greater detail" is especially heinous. that comma totally changes the meaning, because the sentence is now basically just saying "in greater detail", rather than saying "in greater detail than ever before" as it's supposed to.
Ron has been teaching various standardized tests for 20 years.
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Pueden hacerle preguntas a Ron en castellano
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Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
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Pueden hacerle preguntas a Ron en castellano
Potete chiedere domande a Ron in italiano
On peut poser des questions à Ron en français
Voit esittää kysymyksiä Ron:lle myös suomeksi
--
Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
--
Learn more about ron
Hi Ron , Then what does "than ever before : at the end of B signify ?lunarpower wrote:i received a private message regarding this problem.
first, note that this problem is not from GMAT PREP -- a quick internet search reveals that it is from the old ETS paper exams, and that it has also apparently been lifted by "1000sc".
the fatal flaw in choice (b) is its needlessly splitting the modifier "in greater detail than ever before". i can't see any reason to split this modifier in the first place -- i.e., i can't think of any constructions that could be legitimately inserted into it -- but the comma placed after "in greater detail" is especially heinous. that comma totally changes the meaning, because the sentence is now basically just saying "in greater detail", rather than saying "in greater detail than ever before" as it's supposed to.
I Seek Explanations Not Answers
it doesn't really signify anything -- it's in a position that makes it nonsense.mundasingh123 wrote:Hi Ron , Then what does "than ever before : at the end of B signify ?lunarpower wrote:i received a private message regarding this problem.
first, note that this problem is not from GMAT PREP -- a quick internet search reveals that it is from the old ETS paper exams, and that it has also apparently been lifted by "1000sc".
the fatal flaw in choice (b) is its needlessly splitting the modifier "in greater detail than ever before". i can't see any reason to split this modifier in the first place -- i.e., i can't think of any constructions that could be legitimately inserted into it -- but the comma placed after "in greater detail" is especially heinous. that comma totally changes the meaning, because the sentence is now basically just saying "in greater detail", rather than saying "in greater detail than ever before" as it's supposed to.
Ron has been teaching various standardized tests for 20 years.
--
Pueden hacerle preguntas a Ron en castellano
Potete chiedere domande a Ron in italiano
On peut poser des questions à Ron en français
Voit esittää kysymyksiä Ron:lle myös suomeksi
--
Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
--
Learn more about ron
--
Pueden hacerle preguntas a Ron en castellano
Potete chiedere domande a Ron in italiano
On peut poser des questions à Ron en français
Voit esittää kysymyksiä Ron:lle myös suomeksi
--
Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
--
Learn more about ron
