this school is （what it was） before这句话怎么理解啊,请从语法角度剖析.

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this school is （what it was） before
这句话怎么理解啊,请从语法角度剖析.

主语this school,系动词is,表语what it was before（it代指前面school）,before是时间词,可做时间状语理解
what it was before是由特殊疑问词what引导的名词性从句（在本句里属于表语从句）,意为“它之前的样子”也即学校之前的样子

what it was 是表语从句，做is 的表语
翻译：这所学校还是以前的样子。
欢迎继续讨论，满意记得采纳哟，O(∩_∩)O谢谢

this school - 这所学校 - 主语
is - 是 - 谓语
What it was before - 它原来的样子 - 宾语

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