一些形容词不能放在名词之前，这些形容词放在系动词 be, feel, look 或 seem 等之后，例如，可以说 She was alone。却不能说 an alone girl. 以下是一些常见的只能和系动词搭配的形容词:afraid, asleep, alike ，awake，alive ，glad，alone hurt，这些形容词中有很多可以用另外一个可以放在名词前的词来表达相同的含义。

1.afraid只能放在系动词后,而frightened既可以放在名词前,也可以放在系动词后。

• They seem afraid of you。他们看起来很怕你。

• He was acting like a frightened child. 他表现得像一个受惊吓的小孩。

2.alike 只能放在系动词后,而similar既可以放在名词前,也可以放在系动词后。

• They all looked alike to me他们在我看来都一样。

• They were given similar tasks. 他们被给予的任务基本相似。

3.alive只能放在系动词后,而 living 既可以放在名词前，也可以放在系动词后。

• I think his father is still / alive. 我想他的父亲仍然在世。

• I have no living relatives. 我没有在世的亲属。

4.asleep只能放在系动词后,而sleeping既可以放在名词前,也可以放在系动词后。

It was after midnight and she was asleep. 已过半夜，她睡着了。

We both stared at the sleeping child.我们俩都盯着这个熟睡的小孩看。

5.glad只能放在系动词后,而happy或cheerful 既可以放在名词前,也可以放在系动词后。

• I' m so glad you won. 我真高兴你赢了。

• She always seemed such a happy woman. 地看起来总是如此幸福的一个女人。

6.hurt只能放在系动词后,而 injured既可以放在名词前,也可以放在系动词后。

• His friends asked him if he was hurt.他的朋友问他是否受伤了

• His injured leg was feeling better.他受伤的腿感觉好多了。