反身代词（myself / yourself / themselves）
主语和宾语是同一个人时，宾语用 -self：I hurt myself。by myself 是“一个人”，each other 是“互相”。
例句
- I hurt myself.我弄伤了自己。
- They looked at each other.他们互相看了看。
讲解
学完这一课，你能
- 说“自己伤了自己”“自学”这类动作回到自己身上的句子
- 用 by myself 说“一个人”
- 分清 themselves（各自对自己）和 each other（互相）
形式
跟着主语变
I → myselfwe → ourselves
you → yourselfyou（你们）→ yourselves
he → himselfthey → themselves
she → herselfit → itself
同一个人
宾语用 -self
I hurt myself.
我弄伤了自己。不说 I hurt me。
She taught herself English.
她自学了英语。
He looked at himself.
他看自己（照镜子）。He looked at him. 是看另一个男人。
by myself
一个人
I live by myself.
我一个人住。和 I live alone. 意思一样。
each other
互相
They looked at each other.
他们互相看了看。
They looked at themselves.
他们各自看着自己（比如照镜子）。
常见错误
用错代词
I hurt me.I hurt myself.
He hurt hisself.He hurt himself.
They enjoyed theirselves.They enjoyed themselves.
We know ourselves.（想说“彼此认识”）We know each other.
练习要点
1. myself / herself / themselves
-self 词跟着主语变：I → myself，he → himself，she → herself，they → themselves。不用 me，也没有 hisself。
- She taught herself English.她自学了英语。
2. by myself（一个人）
by + -self 词表示“独自、一个人”：I live by myself。
- I live by myself.我一个人住。
3. themselves 还是 each other
themselves 是各自对自己做；each other 是互相对对方做。
- We know each other.我们彼此认识。
练到脱口而出
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