详细内容：1.the + est + 名词 +（that）+ 主词 + have ever + seen （known/heard/had/read， etc） ~~~
the most + 形容词 + 名词 +（that）+ 主词 + have ever + seen（known/heard/had/read， etc）
Helen is the most beautiful girl that I have ever seen。
海伦是我所看过最美丽的女孩。
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。
2.Nothing is + er than to + V
Nothing is + more + 形容词 + than to + V
例句：
Nothing is more important than to receive education。
没有比接受教育更重要的事。
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。
3.cannot emphasize the importance of ~~~ too much。
（再怎么强调。。。的重要性也不为过。）
例句：We cannot emphasize the importance of protecting our eyes too much。
我们再怎么强调保护眼睛的重要性也不为过。
We cannot emphasize the importance of education。
我们再怎么强调教育的重要性也不为过。
4.There is no denying that + S + V 。。。（不可否认的……）
例句：There is no denying that the qualities of our living have gone from bad to worse。
不可否认的，我们的生活品质已经每况愈下。
There is no denying that Lin Zhiling is the most charming actress I have ever seen。
不可否认，林志玲是我所见过的最有魅力的女演员。
5.It is universally acknowledged that + 句子~~ （全世界都知道……）
例句：It is universally acknowledged that trees are indispensable to us。
全世界都知道树木对我们是不可或缺的。(联系我时，请说明是在51站台网看到的，谢谢！)