SC- the usage of "AS WITH"

[wangyinwei_2005]

Dear instructors:
I am confused with the usage of "AS WITH". is this usage permitted by GMAC? for example:
"As with any well-executed marketing plan, sales jumped whenever fans were goosed with new media.""”"”this sentence is from nytimes
I saw a instructor said on another forum that:
[The usage of "as with" is absolutely correct. Because ellipsis is at play. the words "is the case" have been omitted to create a much more concise sentence."as with"="as is the case with"]

but I also saw some prep sentence like:
"As with those of humans, the DNA of grape plants contains sites where unique sequences of nucleotides are repeated over and over."(the incorrect usage of those here is not my problem)
here a instructor commented:[We don't know what the function of "with" is']
I am confused that can't this prep sentence be written to "as is the case with those of humans, the DNA of grape plants...."

which one is correct? please help and thank you in advance!~

[jlucero]

Dear instructors:
I am confused with the usage of "AS WITH". is this usage permitted by GMAC? for example:
"As with any well-executed marketing plan, sales jumped whenever fans were goosed with new media.""”"”this sentence is from nytimes
I saw a instructor said on another forum that:
[The usage of "as with" is absolutely correct. Because ellipsis is at play. the words "is the case" have been omitted to create a much more concise sentence."as with"="as is the case with"]

but I also saw some prep sentence like:
"As with those of humans, the DNA of grape plants contains sites where unique sequences of nucleotides are repeated over and over."(the incorrect usage of those here is not my problem)
here a instructor commented:[We don't know what the function of "with" is']
I am confused that can't this prep sentence be written to "as is the case with those of humans, the DNA of grape plants...."

which one is correct? please help and thank you in advance!~

Although I wouldn't flinch hearing a sentence using the phrase "as with X", I doubt the GMAT would ever use it, but I also have never seen a case where "as with X" is the only issue at play. So, as is the case with many things on the GMAT, I would make a big mark against it, but would definitely look for other issues before eliminating it as an answer choice. Here's the problem- you are using as to demonstrate how something is similar to something else. But we use two different words to express two different ideas: like vs as. Like is used to compare nouns, while as is used to compare clauses:

Like Joe, John is tall.
As Joe is tall, so too is John. (awkward, but acceptable)

The problem is that using the phrase "as with X" would require you to compare clauses, which must include a verb, but with is a preposition that can't include a verb. So instead of saying:

As with Joe, John is tall. (wrong)

You'd compare nouns or clauses:

Like Joe, John is tall.
As is the case with Joe, John is tall.

[wangyinwei_2005]

Dear instructors:
I am confused with the usage of "AS WITH". is this usage permitted by GMAC? for example:
"As with any well-executed marketing plan, sales jumped whenever fans were goosed with new media.""”"”this sentence is from nytimes
I saw a instructor said on another forum that:
[The usage of "as with" is absolutely correct. Because ellipsis is at play. the words "is the case" have been omitted to create a much more concise sentence."as with"="as is the case with"]

but I also saw some prep sentence like:
"As with those of humans, the DNA of grape plants contains sites where unique sequences of nucleotides are repeated over and over."(the incorrect usage of those here is not my problem)
here a instructor commented:[We don't know what the function of "with" is']
I am confused that can't this prep sentence be written to "as is the case with those of humans, the DNA of grape plants...."

which one is correct? please help and thank you in advance!~

Although I wouldn't flinch hearing a sentence using the phrase "as with X", I doubt the GMAT would ever use it, but I also have never seen a case where "as with X" is the only issue at play. So, as is the case with many things on the GMAT, I would make a big mark against it, but would definitely look for other issues before eliminating it as an answer choice. Here's the problem- you are using as to demonstrate how something is similar to something else. But we use two different words to express two different ideas: like vs as. Like is used to compare nouns, while as is used to compare clauses:

Like Joe, John is tall.
As Joe is tall, so too is John. (awkward, but acceptable)

The problem is that using the phrase "as with X" would require you to compare clauses, which must include a verb, but with is a preposition that can't include a verb. So instead of saying:

As with Joe, John is tall. (wrong)

You'd compare nouns or clauses:

Like Joe, John is tall.
As is the case with Joe, John is tall.

Thank you, Joe!
so, according to your example, as with is not the elliptic version of as is the case with. these two are not the same thing, am I right?

[tim]

correct. i don't know where this recent trend of students obsessing with ellipsis comes from, but please do yourself a favor and forget that the concept of ellipsis ever existed..

[wangyinwei_2005]

correct. i don't know where this recent trend of students obsessing with ellipsis comes from, but please do yourself a favor and forget that the concept of ellipsis ever existed..

Thank you, Tim!:)

[tim]

i'm all about helping you streamline your studying. :) be sure to leave off pronoun ambiguity and concision as well!