1. 表示“比...更”，用比較級形容詞+than+比較成分，表示前者“超過”后者。than后主語的述語動詞往往省略，非正式用法的than后的人稱代名詞可用賓格。

I am a better swimmer than you (are).

我游泳比你好。

But you are taller and stronger than I (am).

但是你比我高，比我壯。

Just because you are shorter and weaker, is that the reason you become a slower swimmer than me?

僅僅因為你比我矮比我弱，就有理由比我游得慢嗎？

2. 否定的比較級表示“較...低；不及...”，用less+原級形容詞+than+比較成分，表示前者不及后者。

I have always tried to help those who are less fortunate than I.

我一直設法幫助比我不幸的人。

At least you are less generous than I.

至少你沒有我慷慨。