长难句中it的用法
What it does mean it that the book business will go through a transformation in the next decade or so more profound than any it has seen since Gutenberg introduced printing from moveable type in the 1450s.
老师好，请问一下这句子加粗部分中的it应该怎样理解？我的理解是“it has seen since Gutenberg introduced printing from moveable type in the 1450s”作为定语从句，修饰any（指代transformation）。但是从句中的it不知道该怎么理解，是作为形式主语么？那对应的真正主语是什么？或者说这里的it是指代transformation？可是感觉也说不通，这样的话不应该用被动语态it has been seen么？而且和前面的any就不是定语从句修饰的关系了。
烦请老师解答一下，不胜感激!
最佳答案 2019-09-15 22:22
What it [1] does mean is that the book business will go through a transformation in the next decade or so more profound than any it[2] has seen since Gutenberg introduced printing from moveable type in the 1450s．
1. it 指上文所述之事
2. it 指the book business，前面省略了关系代词 that
## any 指 transformation
## it has seen ： see = experience
其它 3 个回答
补全省略后，该句为：
What it does mean is that the book business will go through a transformation in the next decade or so (which is) more profound than (was) any (transformation) (that) it has seen since Gutenberg introduced printing from moveable type in the 1450s.
It指代the book business。
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any代替any transformation；也即any是any transformation的省略形式。
再如：
Today it is thought that Stradivari made violins that are better than any made ever since.(上海会考，96，阅读A) 今日人们认为，Stradivari制做的小提琴比迄今制做出来的任何小提琴都好。
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