求助求助一道语法题

linhan50 · 发表于 2012-3-15 15:05:44

160.(OG12-23)
In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is lined with lead around the perimeter, thereby improving stability in flight and resulting in longer throws.

A.In a previous design, the weight of the discus used in track competition is concentrated in a metal center, but now it is

B.According to a previous design, the weight of the discus used in track competition was concentrated in a metal center, but now it is

C.Once designed with its weight concentrated in a metal center, the discus used in track competition is now

D.The discus used in track competition, once designed with its weight concentrated in a metal center, but now(C)

E.The discus used in track competition was once designed having its weight concentrated in a metal center and now

这里的b选项能不能因为最后的but now it is ，now 没放在is 后面判错啊？？？？？求助给位大神了....

wwc008love · 发表于 2012-3-15 15:18:07

我觉得和now的位置没关系。。主要是因为it指代不清。。A,B的it指代前面那个clause的主语即weight, 而weight is lined with...逻辑意思错误。。所以A,B错

深圳的游子 · 发表于 2012-3-15 15:24:47

A The verb tense describing the previous design should be past, not present; the pronoun it refers to the subject of the first clause, weight, and it does not make sense to say that the weight of the discus is lined with lead.

B Although the tense of the verb in the first clause is appropriately past, the pronoun in the second clause is still referring to weight instead of discus.

C Correct. The introductory phrase describes the past design of the discus with a past participle (designed) that modifies the subject of the main clause (the discus); the main verb is lined is in present tense.

D This version of the sentence is a fragment because it has no main verb.

E The sentence is missing a main verb in the final phrase; was once designed must be followed by is now lined.

linhan50 · 发表于 2012-3-15 18:04:53

我觉得和now的位置没关系。。主要是因为it指代不清。。A,B的it指代前面那个clause的主语即weight, 而weight is lined with...逻辑意思错误。。所以A,B错

-- by 会员 wwc008love (2012/3/15 15:18:07)

帮我看看0g上的70题的E选项里面说的话好吗？？？？
里面说Now is an adverb and should be placed just after the verb are.
里面的now 和are 的位子摆的跟这题差不多。
70. His studies of ice-polished rocks in his Alpine
homeland, far outside the range of present-day
glaciers, led Louis Agassiz in 1837 to propose the
concept of an age in which great ice sheets had
existed in now currently temperate areas.
(A) in which great ice sheets had existed in now
currently temperate areas
(B) in which great ice sheets existed in what are
now temperate areas
(C) when great ice sheets existed where there were
areas now temperate
(D) when great ice sheets had existed in current
temperate areas
(E) when great ice sheets existed in areas now that
are temperate
Verb form; Rhetorical construction
In which or when can be used interchangeably in
this sentence. Th e verb form here should be the
simple past existed rather than the past perfect had
existed. Now currently is redundant because both
adverbs express the same idea.
A Had existed should be existed; now currently is
redundant.
B Correct. Th e simple past verb tense is
correctly used in this sentence; now is placed
and used correctly.
C Where there were areas now temperate is wordy
and confusing.
D Had existed should be existed; current should be
currently; in current temperate areas is unclear.
E Now is an adverb and should be placed just
after the verb are.
Th e correct answer is B.

xingym · 发表于 2012-3-16 01:16:39

这两题不一样

第一个是it指代不清； now 作为副词放句首没问题
第二个是now去修饰area,，当然有问题

clairexuan9 · 发表于 2012-3-16 01:30:00

这个就是主语不行的。。。。而且GMAT 语法很喜欢把这种modifier放在前面，然后main, 然后跟着verb神马的。

如果是main, modifier/同位语/， verb，都是很简单的插入语成分。这个C,D 选项那些都太容易产生歧义了。。。。

B 的主语就是weight 而不是disc神马的

linhan50 · 发表于 2012-3-16 13:28:18

Thanks

求助求助一道语法题

所属分类: GMAT考试

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