GMAT官方指南2016版语文部分更新题目解读 （Official Guide、OG）

Visionarying

这道题的答案：

Verb form; Rhetorical construction
Opening with a past date (1999) describing the end point of a period of discovery, this sentence calls for a past perfect main verb to follow the subject astronomers. In order to economize on words and maximize clarity, the object of the main clause, stars, is modified by a passive relative clause that are orbited by planets followed by the adjective phrase about the size of Jupiter. This structure avoids an awkward and confusing string of relative clauses and prepositional phrases.
A Correct. This version is clear and uses the correct verb form had discovered.
B The use of a prepositional phrase with planets necessitates the introduction of a relative clause that were . . ., in which the referent of the relative pronoun that is somewhat uncertain (stars? or planets?). The past tense verb were suggests, improbably, that the size of the planets may have changed significantly since 1999.
C The string of relative clauses is awkward and wordy.
D If the sentence was written after 1999, the present perfect tense is illogical, because 1999 is in the past. If it was written in 1999, this way of referring to the then-present time is odd and misleading. The prepositional phrase is wordy and indirect.
E As in (D), the present perfect tense is illogical. The correct answer is A.

18613878605

感谢分享！               

JillValentine

thanks so much

ulliu

感谢分享！               

苏维埃肉熊

我刚开始准备GMAT 有必要买最新版的OG 2016吗？ 还是用之前的版本也可以？

zhuhongsheng

感谢helr老师！

狐狸你好吗

感谢分享！               

boscothegreat

大神啊！谢谢经典分享，我刚踏入MBA这个世界，还是摸不到头绪，烦请告知一下，我需要买些什么材料来复习呢？谢谢！

冰冰沙沙

感谢分享.

catiiee

感谢分享！