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。