形容词是用来描写或修饰名词或代词，说明人或事物的特征或性质的， 形容词往往被译成“···的”。用法如下:

1.做定语。e.g. This is an old house.

2.做表语。e.g.I am sorry to hear that.

3.做宾语不足语。e.g.She made her mother angry.

4.形容词在句中的位置。 形容词做定语修饰名词时，放在名词前面。修饰不定代词时要放在不定代词之后。

e.g.She is a clever girl.

I saw something white in the water.

5.某些形容词前加上定冠词the,可以代表一类人或东西，可以用作主语，宾语等。做主语时当复数看待。

e.g.The old are well looked after.

We all love the beautiful.