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he is finding it difficult to get his room in order.为什么it 后面

来源:学生作业帮 编辑:拍题作业网作业帮 分类:英语作业 时间:2024/04/19 08:06:44
he is finding it difficult to get his room in order.为什么it 后面没有is?
如题,以及我出现这种问题的根本原因是什么?哪部分知识没搞懂,别跟我说是语法,更具体一点.谢谢!
这是“形式宾语”,
这句话本来的结构应该是:
he is finding /to get his room in order/ difficult.
不定式短语to get his room in order作find的宾语,
difficult是宾语补足语,
但是不定式作宾语(或主语)时,往往用it代替不定式作宾语(或主语),而不定式本身后置,这时候的it被称为“形式宾语(或主语)”
如果加上it,就变成:
he is finding it is difficult to get his room in order.
就变成it is difficult to get his room in order作宾语从句.
你应该把形式主语和形式宾语这部分看一下