OG14 里面说的sighted is not a complete verb是什么意思呢？

ClioC · 发表于 2012-3-11 23:16:59

14. Sunspots,vortices of gas associated with strong
electromagneticactivity, are visible as dark spots on
the surface of the Sun but have never been sighted on
the Sun's poles or equator.

(A) are visible as dark spots on the surface of the
Sun but have never been sighted on
(B) are visibleas dark spots that never have been
sighted on the surface of the Sun
(0 appear on the surface of theSun as dark spots
although never sighted at
(D) appear as dark spots on the surface of the Sun,
although never having been sighted at
(E) appear asdark spots on the Sun's surface,
which have never been sighted on

ClioC · 发表于 2012-3-12 11:20:46

哎。。。自己顶顶

wangjieava23 · 发表于 2012-3-12 11:34:01

Logical predication; Parallelism The correct parallel structure in the original sentence emphasizes the contrast between where sunspots are found (are visible … Sun) and where they are not (have never been sighted … equator). Sunspots is the subject of the sentence; are is the verb of the fi rst part of the contrast, and have been sighted is the verb of the second. (Th e adjective visible is a complement and is parallel to the past participle sighted.) Both parts of the sentence conclude with phrases indicating location. The contrast itself is indicated by the conjunction but.
A Correct. Th is sentence clearly and correctly draws a contrast between where sunspots are found and where they are not.
B Th e modifying clause that never … Sun distorts the meaning of the sentence; also, without punctuation, the phrase on the surface of the Sun the Sun’s poles or equator is ungrammatical and makes no sense.
C Although typically introduces a subordinate clause, which has a subject and a verb, but here there is no subject and sighted is not a complete verb.
D Although usually introduces a subordinate clause, but there is no subject of the clause and having been sighted is not a complete verb phrase.
E The is phrasing makes the sentence somewhat awkward and unclear.

是这里吗，GMAC估计想说这里应该用被动。

大宝店小二 · 发表于 2012-4-25 21:21:16

although 之后应该是加完整的句子吧！

wangjieava23 · 发表于 2012-5-3 19:53:11

楼上，although 是主从连词，一般用法是要接完整句子的。但是有些时候 although 引导的成分做插入语，是会要做一些变形的。

OG14 里面说的sighted is not a complete verb是什么意思呢？

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