Question

请问这句的句子成分是？越详细越好，谢谢。

It seems to ma
that you did not do very well in the first two years.

看来你第一、二年的成绩不甚理想

Answer 1

本句句型分析有两个要点：
1、that引导的主语从句。“that you did not do very well in the first two years”是一个从句，并且在整体句子结构中充当主语。
2、It这个代词，指代后面的that引导的从句；it是形式主语，真正的主语后置，目的是为了避免“头重脚轻”，使表达更加舒适、合理。

所以，本句原本的表达是这样的That you did not do very well in the first two years seems to me.

希望能帮到你，谢谢~

Answer 2

你好

It seems to me that you did not do very well in the first two years.

看来你第一、二年的成绩不甚理想

这是一个固定句型，结构是：it seem (to sb) + that从句，意思是“（对某人来说）似乎/好像...”。
句子谓语：seems
状语：to me

that引导表语从句：that you did not do very well in the first two years.
主语：you
谓语：didn't do
状语：very well in the first two years.

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祝你学习进步，更上一层楼！

不明白请及时追问，满意敬请采纳，O(∩_∩)O谢谢~~

Answer 3

这句的话，it 是句子的形式主语，that从句 是真正的主语。这种句式非常常见。

Answer 4

It主 seems系动词 to me状语
that you主 did not do谓 very wel状l in the first two years状.（表语从句）