Question

帮我分析下英语句子的语法，O(∩_∩)O谢谢！

so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes中。前部分是主系表结构，那后面这部分的语法帮忙分析下（ than the one recorded by changes in catch sizes）

Answer 1

than 在这里是介词引导比较状语。the one代指前面的difference。recorded by changes in catch sizes做后置定语修饰the one。

Answer 2

than the one recorded by changes in catch sizes
the one 是比较的对象
recorded by changes in catch sizes是后置定语 ，修饰the one

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追问

那than the one做的是状语还是什么语呢？

追答

the one是跟主语对映的，是做than这个介词的宾语

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Answer 3

difference 是主语，betweem present and past 是后置定语 is 后面接表语

Answer 4

be worse than the one 是比较级
recorded by changes in catch sizes是the one 的定语