1. 形容词作定语修饰名词或者代词,放在其前面.
There is a huge hall on the first floor.
This hat is small, give me a big one.
2. 形容词放在联系动词(即be动词、感官动词)之后做表语,构成固定系表结构.
The film is very interesting. (有副词出现修饰形容词的时候,副词在形容词之前)
The cake tastes nice.