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waytous 发表于 2013-1-17 10:02
特能体会到为什么牛人们鼓励大家发帖问问题,发帖回答别人的问题。特别感动大家的耐心解答!小总结一下1. s ...
第一点有点不同意,贴上国外网站大牛的解析
1.) Notice that the end of some of the answers include a subject/verb, so check sentence structure. ABCD each uses ", but" or ", yet" and each of these requires an independent clause on each side (S/V ", but" S/V). There is no verb after the underlined part, so we need a subject/verb in the answer after the ", but" or ", yet". This knocks out A and C. E doesn't need to be eliminated, because we don't have a comma before "but"
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.
3.) The order of "stars" and "planets" changes, which usually indicates a modifier-related meaning issue. Here the sentence is intending to tell us that the "stars" are "so far away from the Earth", not the "planets".
The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being so far away from the Earth that their apparent positions in the sky do not change enough for their movement to be observed during a single human lifetime.
A) The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being - "being" doesn't make this wrong. In fact, the GMAT sometimes starts a clause using being if it is trying to use the state of being something as the subject. What makes this answer wrong is the lack of a subject/verb after the ", yet"
B) Like the planets, the stars are in motion, some of them at tremendous speeds, but they are - There is a subject/verb after ", but" and there is proper use of "like". Also, the modifier "some of them" is properly modifying "stars". Don't worry that "them" might be a little ambiguous ("stars" or "planets") because ambiguity is a lower priority than improper sentence structure, improper like/as usage, and improper meaning from improper modifier placement.
C) Although like the planets the stars are in motion, some of them at tremendous speeds, yet - Again, no verb after ", yet"
D) As the planets, the stars are in motion, some of them at tremendous speeds, but they are - "as" is followed by a noun, so it describes the function that the stars are performing, which is not the intended meaning of the sentence
E) The stars are in motion like the planets, some of which at tremendous speeds are in motion but - The modifier "some of which" is describing planets as being far away from the Earth. This is not the intended meaning of the sentence. |
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