直接陈述
1、 It is universally acknowledged that + 句子 (全世界都知道...)
例如：
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)。
2、An advantage of---is that+句子(...的优点是...)
例如：
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的污染)。
3、---enabel us to+do(....使...能够...)
例如：
Listening to music enable us to feel relaxed(听音乐使我们能够感觉轻松)。
4、定语从句：Those,who---(...的人...)
例如：
Those who violate traffic regulations should be punished(违反交通规定的人应该受到处罚)。
5、It pays to + V ---(是值得的)=A is good
例如：
It pays to construct an efficient transportation mechanism(建造一个高效的交通机制是值得的)
比较
1、---the + --est+名词 + (that)+主词+have ever + seen
---the most+形容词+名词 +(that)+主词+have ever + seen
例如：Educationl issue are among the thorniest ones that modern society has ever encountered(教育问题是当代社会最棘手的问题)。
2、Nothing is + ---er than to + V
例如：
Nothing is more important than to receive education(没有比接受教育更重要的事情了)。
否定
There is no denying that + S + V...(不可否认的...)
例如：
There is no denying that the qualities of our living have gone from bad to wores(不可否认的，我们的生活品质已经每况愈下)。
There is no doubt that + 句子 (毫无疑问的...)
例如：
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)。