1 比较级形容词或副词 + than
You are taller than I.
注意： 1)要避免重复使用比较级。
(错) He is more cleverer than his brother. (对) He is more clever than his brother.
(对) He is clever than his brother.
2)要避免将主语含在比较对象中。
(错) China is larger than any country in Asia.
(对) China is larger than any other countries in Asia.
3)要注意对应句型，遵循前后一致的原则。
The population of Shanghai is larger than that of Beijing.
It is easier to make a plan than to carry it out.
4)要注意冠词的使用。
比较：Which is large, Canada or Australia?
Which is the larger country, Canada or Australia?
She is taller than her two sisters.
2 可修饰比较级的词
1. a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等
2. 还可以用表示倍数的词或度量名词作修饰语。
3.以上词(除by far)外，必须置于比较级形容词或副词的前面。
11 many,old 和 far
1) 如果后接名词时，much more +不可数名词
many more +可数名词复数
2) old 有两种比较级和最高级形式: older/oldest 和elder/eldest。 elder，eldest 只用于兄弟姐妹的长幼关系。
My elder brother is an engineer.
Mary is the eldest of the three sisters.
3) far 有两种比较级，farther，further. 在英语中两者都可指距离。
在美语中，farther 表示距离，further表示进一步。
I have nothing further to say.