2015年职称英语考试已经开始备考，本阶段应该多整理一些基础词汇和语法。为此，网校特整理了“2015年职称英语考试语法知识”供您参考，希望对您有帮助！

用于现在完成时的句型

1）It is the first/second time…that…结构中的从句部分，用现在完成时。

It is the first time that I have visited the city.

It was the third time that the boy had been late.

2）This is the… that…结构，that 从句要用现在完成时。

This is the best film that I've（ever）seen.

这是我看过的最好的电影。

This is the first time（that）I've heard him sing.这是我第一次听他唱歌。