OG-12 42

qingluo

Scientists have recently discovered what could be the
largest and oldest living organism on Earth, a giant
fungus that is an interwoven filigree of mushrooms and
rootlike tentacles spawned by a single fertilized spore
some 10,000 years ago and extending for more than
30 acres in the soil of a Michigan forest.
(A) extending
(B) extends
(C) extended
(D) it extended
(E) is extending
Parallelism; Verb form
Th e original sentence is correctly written. Th e
giant fungus is described as an interwoven filigree
spawned … some 10,000 years ago and extending for
more than 30 acres. Th e present participle extending
parallels the past participle spawned.
A Correct. Th is sentence has the participles
spawned and extending in a correct parallel
construction. Spawned refers to something
that happened in the past, while extending
refers to something that continues into
the present.
B Extends is a present tense verb, not the
participle needed for parallel structure; the
ostensible parallel between extends and the
distant verb is is superficial and would result
in an awkward and unclear sentence.
C Extended looks parallel to spawned, but this
phrase would mean that the fungus
extended only in the past when the fungus
clearly lives on in the present.
D It extended is not parallel to spawned and
indicates an event completed in the past.
E Is extending is the progressive form of the
present tense verb, not the participle
required for parallelism.
为什么B选项不平行呢？
谢谢

SS2010

extend 必须要用分词结构与 spawned 平行

因为表主动并强调从过去到现在一直  所以使用extending

所以选A

qingluo

谢谢！

erhou

过去分词和现在分词并列，我第一开始也选B， 说实话，要真的是完全套用平行的话，这题会觉得很简单，而且必错，反正是挺恶心

qingluo

就是说啊，看来GMAT还是很有心机的

subaru6385

extend 必须要用分词结构与 spawned 平行

因为表主动并强调从过去到现在一直  所以使用extending

所以选A

-- by 会员 SS2010 (2010/3/15 9:59:57)

为什么extend必须和spawned平行呢？extend不能和is平行吗？
我当时选的是B，也就是说a giant fugus that is... and extends...