向各位NN求助OG16 SC的137题！！

云杉之歌

137. By 1999, astronomers had discovered 17 nearby stars that are orbited by planets
about the size of Jupiter.
(A) had discovered 17 nearby stars that are orbited by planets
(B) had discovered 17 nearby stars with planets orbiting them that were
(C) had discovered that there were 17 nearby stars that were orbited by
planets
(D) have discovered 17 nearby stars with planets orbiting them that are
(E) have discovered that 17 nearby stars are orbited by planets


问题一：about这句修饰的到底是stars还是planets？
问题二：OG说about是作为adj phrase来修饰，可是我始终读不懂为何这句能这样用，难道about作为形容词？如果不是的话不就是单独一个名词size作为一句了么...连独立主格都不是呀；如果是的话，请问about啥时候当形容词啥时候是介词和副词?
问题三：假如没有后面的about，这里用B答案的with句是否可以？OG里的意思是，B答案里用了with句后面的that就指代不明了，但没有说with句本身是否有错。我在一个国外的网站上看到一位foreigner解读说with也不能用，因为这个伴随语句在完成时态中有一种暗示只在当时stars被discovered的时候planets才围着转的意思。到底是怎样呢？


求NN解答，感激不尽！

RyanR

我认为about显然修饰距离最近的名词planets。对于about的理解不需要太复杂，它显然可以引导一个形容词phrase，比如：I saw a tree about 2 meters high.
With我认为可以那样用，表示的是发现的当下在环绕，而其他时候是否环绕，无从得知。B中错误的原因是that从句本来逻辑上应该修饰planets却指了them（stars）。

云杉之歌

RyanR 发表于 2016-7-4 16:16
我认为about显然修饰距离最近的名词planets。对于about的理解不需要太复杂，它显然可以引导一个形容词phras ...

十分感谢！

ai559031

about修飾planet
就算Ｂ去掉about不看還是不會選他

1.因為with...(phrase)跟that are...(clause)
子句會優於片語

2. 而且Ｂ又有them代名詞
明顯比Ａ還要redundancy