一.~ 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)例句：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。
二.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。
三.~ 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。
四.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。
五.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。
六.There is no doubt that + 句子~~ (毫无疑问的...)
例句：There is no doubt that our educational system leaves something to be desired.
毫无疑问的我们的教育制度令人不满意。
七.An advantage of ~ is that + 句子(...的优点是...)
例句：An advantage of using the solar energy is that it won't create (produce) any pollution.
使用太阳能的优点是它不会制造任何污染。
八.The reason why + 句子 ~ is that + 句子(...的原因是...)<...