it is necessary that...有必要吗？

Question

如题所述

Answer 1

Itisnecessary。。。。是一种银态重锋大源要的英语句式这里it是形式主语，不是真正的主语，真正的主语是necessary后面的不等式或从句。比如：Itisnecessaryforyoutoreadthetexteverymorning.每天早上读课文对仿冲你来说很有必要。这里真正的主语是toreadthetexteverymorning[tele.jsyanchu.cn/article/432756.html]
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