Papgust's GMAT SENTENCE CORRECTION FLASHCARDS directory

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by papgust » Thu Jun 17, 2010 6:40 am
"X's rate of Y" is better than "the rate of X's Y".


Example:
"Salesman X's rate of success" is BETTER than "the rate of Salesman X's success".



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by papgust » Thu Jun 17, 2010 6:42 am
"Mideast immigrants" is WRONG.

"Immigrants from the Mideast" is BETTER. "Mideast" CANNOT be used as an adjective of nationality. For the same reason, you CANNOT say "Asia People" in place of "People from Asia".


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by uwhusky » Thu Jun 17, 2010 9:20 am
papgust wrote:You DON'T say "dated to be..."

You ONLY say "dated at ...."
On that same note, you don't say "estimated at" for time period, but rather "estimated to be".

These two can cause some confusions.

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by uwhusky » Thu Jun 17, 2010 9:23 am
papgust wrote:You CANNOT end a modifier with a preposition.

Examples:
"dioxins that north americans are exposed to" -- INCORRECT.
"dioxins to which north americans are exposed" -- CORRECT.
Little bit more note on this one that I came across. It's a general rule that you don't want to end a sentence or a clause with a preposition.

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by missionGMAT007 » Thu Jun 17, 2010 10:50 am
papgust wrote:You CANNOT end a modifier with a preposition.

Examples:
"dioxins that north americans are exposed to" -- INCORRECT.
"dioxins to which north americans are exposed" -- CORRECT.
Is this incorrect or a good to use thing?

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by RumpelThickSkin » Thu Jun 17, 2010 10:52 am
uwhusky wrote:
papgust wrote:You DON'T say "dated to be..."

You ONLY say "dated at ...."
On that same note, you don't say "estimated at" for time period, but rather "estimated to be".

These two can cause some confusions.
good point Husky .. i used to mess these two up at first!

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by FightWithGMAT » Thu Jun 17, 2010 11:12 am
papgust wrote:--[ IMPORTANT ]--

LIKE / AS RULE:

You make comparisons with LIKE when you compare nouns, or noun phrases (i.e., anything that doesn't have a VERB).
EXCEPTION:
Prepositional phrases take "As".
Note that there may be modifiers attached to these nouns. If there are, don't care. Modifiers are disposable.


You make comparisons with AS when you compare clauses (things that have real VERBS), or prepositional phrases.

NOTE: When you're deciding whether something is a clause or just a noun phrase, remember that -ING FORMS DO NOT COUNT AS VERBS (unless there's a helping verb attached to them).


Examples:
"Those babies are cute, like little pandas sliding down rainbows" -- CORRECT!
Note that:
* "sliding" is NOT a verb.
* "sliding down rainbows" is a modifier, and thus doesn't have to be considered in the grammar of the sentence.

"Those babies are cute, as are little pandas that slide down rainbows" -- CORRECT!
* "are" is a verb, so this is a clause.
* "that slide..." DOES NOT count, since it's part of a modifier.

"Those babies are cute, like little pandas that slide down rainbows" -- CORRECT!
* "little pandas" is a noun.
* "that slide..." DOES NOT count, since it's part of a modifier.

"Our family lives on a farm now, as in the 19th century." -- CORRECT! Prepositional phrases take "as"



Courtesy: Ron Purewal, GMAT Expert.
Our family lives on a farm now, as in the 19th century.

Is this a case of ellipsis

The sentence could be expanded to

Our family lives on a farm now, as (it did) in the 19th century.

Experts, to what extent we can use ellipsis in comparison sentences. Please explain.

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by uwhusky » Thu Jun 17, 2010 11:20 am
missionGMAT007 wrote:
papgust wrote:You CANNOT end a modifier with a preposition.

Examples:
"dioxins that north americans are exposed to" -- INCORRECT.
"dioxins to which north americans are exposed" -- CORRECT.
Is this incorrect or a good to use thing?
It's safe to say that a right answer on GMAT will not have a preposition at end of its sentence.

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by papgust » Thu Jun 17, 2010 8:50 pm
missionGMAT007 wrote:
papgust wrote:You CANNOT end a modifier with a preposition.

Examples:
"dioxins that north americans are exposed to" -- INCORRECT.
"dioxins to which north americans are exposed" -- CORRECT.
Is this incorrect or a good to use thing?
It's a tip given by Ron (GMAT Instructor). So, it should be 100% safe to use in GMAT.
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by papgust » Fri Jun 18, 2010 6:34 am
--[IMPORTANT]--

"Would" Vs "Will":


"Would" is the past tense of "Will".

(i) If you are talking about predicting or expecting an event that still lies in the future, then you use "WILL".

(ii) If you are talking about a PAST PREDICTION or expectation of an event whose timeframe has ALREADY PASSED, then you use "WOULD".



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by papgust » Fri Jun 18, 2010 6:39 am
"A substance to promote" is UNIDIOMATIC.

Substance --> Concrete Noun
Promote --> Verb


"A NOUN TO VERB" is CORRECT ONLY when Noun is ABSTRACT.

Examples:
"A way to produce goods"
"A reason to try harder"

"A substance to promote X" --> WRONG! "Substance" is a concrete noun.
"A substance that promotes X" --> CORRECT!

"A tool to install the shelves" --> WRONG! "Tool" is a concrete noun.
"A tool with which to install the shelves" --> CORRECT!




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by papgust » Fri Jun 18, 2010 6:43 am
"Awareness of" is the CORRECT idiom.
"Awareness about" is WRONG.

--

"Correlates with" is RIGHT.
"Correlates to" is WRONG.

--

"Decided that" is RIGHT.
"Decided on" is WRONG.

--

"Made possible by" is RIGHT.
"Made possible because of" is WRONG.
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by papgust » Sat Jun 19, 2010 8:04 pm
"Greater than" Vs "More than":


"Greater than" --> When describing numbers alone

"More than" --> When describing the numbers of objects OR When making comparisons.
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by papgust » Sat Jun 19, 2010 8:05 pm
"Inevitable":


"It was inevitable that I would miss my bus" -- RIGHT!

"It was inevitable of me to miss my bus" -- WRONG!
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by papgust » Sat Jun 19, 2010 8:07 pm
"Twice":


"Twice" CANNOT function as an object of the preposition such as "by".

"Twice" is an adverb.


Example:
"... increased by more than twice .." -- WRONG!



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