russ9
Hi -- Two questions:
Can someone explain the difference here between "like" vs. "as"? I was under the impression that "as" is used to compare clauses vs. "like" which is used to compare nouns, correct?
I narrowed it down to B and D and chose D because I *thought* that I was comparing the
"motion of the stars" to the "motion of the planets". Doesn't that warrant a clause comparison, in turn, using "as" as the comparison marker?
As a + 1 -- can someone purely use comparison to eliminate the 5 answer choices, I would love to see what is being compared. I can only eliminate "C" b/c of the "although" in the front creates an awkward comparison.
Was I wrong?Hi Russ,
I think you should consider reading my post from the first page:
mmagyar
2.) We see "like" and "as" in the beginning, so comparisons are being tested. "like" needs to be followed by a noun. "as" can be followed by a noun or a subject/verb, but it is NOT a comparison if it is followed by a noun - it is describing function. Because we are comparing how the stars are in motion to how the planets are in motion, "as" needs to be followed by a subject/verb if it is used.
Don't worry so much about the meaning when deciding between like and as; instead, consider the pure structure that follows. I suggest reading this
e-GMAT post:
as-vs-like-correct-and-incorrect-usages-133950.htmlegmat
Both ‘like’ and ‘as’ are used to state comparisons. For example:
• Amy takes care of the children in the day care like a mother.
• Amy takes care of the children in the day care as a mother does.
Both sentences are correct. Both the sentences above convey the meaning that Amy takes care of the children “in the same way” as a mother takes care of her children.
But notice the usage here – ‘like’ is followed by a noun and ‘as’ is followed by a clause. This grammatical construction should be kept in mind.
---
In this question, all of the choices are grammatically correct for like/as. There are other meaning issues (modifiers, "although," etc.), but the meaning of the comparison matches for ABCE, so we cannot eliminate them for comparison reasons. D, however, has a comparison problem.
In D, "as" is followed by a noun, so it is telling us that the stars are filling the function of (i.e. becoming) planets when those stars are in motion. What do we mean by function? Consider:
"The student acts like a teacher" - comparison to show that the student is not a teacher, but is acting in a SIMILAR manner
"The student acts as a teacher does" - comparison to show that the student is not a teacher, but is acting in a SIMILAR manner
"The student acts as a teacher" - telling us that the student is filling the role of a teacher (not in a way that is SIMILAR to a teacher, but that the student has actually BECOME a teacher, even if temporarily)
Also, in general, the GMAT seems to like to test the meaning of a comparison much more than the actual grammatical structure. Don't worry so much about like/as and focus more on the meanings that are generated by changing the order of the words.
Hope that helps