(1) 原级比较：

例：English is not so difficult a subject as Russia. 英语不是和像俄语一样难的科目。

Their bones are not as thick as adults’.他们的骨头和成年人的不一样厚。

(2) 一方超过另一方：

例：The weather of this year is a lot hotter than that of last year.

    今年的气候比上一年的气候要热得多。

(3) 一方不如另一方：

例：The restoration was so bad that it made some of the buildings less secure than they had been before. 修复工作是如此的糟，以致于它使得一些建筑没有以前安全了。

(4) The + ~er + S + V,  the + ~er + S + V

　 The + more + adj + S + V,  the + more + Adj + S + V （愈---愈---）

例：The harder you work, the more progress you make. 你愈努力，你愈进步。

　  The more books we read, the more learned we become. 我们书读愈多，我们愈有学问。

(5) more…. than…与其说…倒不如说

例：Smith is more diligent than intelligent. 与其说Smith聪明倒不如说他勤奋。

(6) no +形容词比较级+ than = as +形容词的反义词+ as

例：I am no better at English than you. 我的英语不比你好。

(7) that 在前后比较中代替不可数名词和特指的单数可数名词

例：The traditional picture of St Nicholas is quite different from that of Father Christmas.

(8) one 在前后比较中代替泛指的单数可数名词。

例：I prefer a flat in Beijing to one in Nanjing, because I want to live near my Mom's.

与南京相比我更喜欢在北京有一套公寓，因为我想跟我妈妈住一起。

(9) those 在前后比较中代替特指的复数可数名词。

例：Salaries are higher here than those in my country. 这儿的工资比我们国家的高。

(10) ones 在前后比较中代替泛指的复数可数名词

例：Cars do cause us some health problems --- in fact far more serious ones than mobile phones do.汽车确实给我们的身体健康带来问题，事实上比手机造成的问题更严重。