It is the first / second time.that.是丛句还是强调句

问题描述:

It is the first / second time.that.是丛句还是强调句

拜托,楼上的二位不要误人子弟,好不好!这是一个固定句型啊!
It is the first / second time.that后加have+过去分词.
eg.It is my first / second time that I have seen this book.