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...）
例句：The reason why we have to grow trees is that they can provide us with fresh air./ The reason why we have to grow trees is that they can supply fresh air for us.
我们必须种树的原因是它们能供应我们新鲜的空气。