1. 主语+is + the + 最高级+ 名词 +(that)+ I have ever seen (known/heard/had/read)
Helen is the most beautiful girl that I have ever seen。
Mr. Chang is the kindest teacher that I have ever had。
张老师是我曾经遇到最仁慈的教师。
Yao Ming is the tallest basketball player that I have ever seen。
姚明是我所见过的最高的篮球运动员
Liu Xiang is the most hardworking sportsman that I have ever seen。
刘翔是我所见过的.最勤奋的运动员。
ing is more important + than + to do sth.
Nothing is more important than to keep fit。
没有比保持健康更重要的事。
Nothing is more important than to potect our environment。
没有什么比环保更重要的事。
Nothing is more important than to gain knowledge。
没有什么比学习知识更重要的事。
e is no denying that + S + V (不可否认的)
There is no denying that Nothing is more important than to potect our environment.
不可否认的，没有什么比环保更重要的事。
