64　oneself, by oneself和all by oneself

　do sth. oneself 表示不靠别人的帮助而自己做某事，与do sth. by oneself 意思差不多，但by oneself 还表示“独自，孤单，一人”的意思，作状语。all by oneself 是by oneself的强调式。

He made the kite himself . 他自己做了那个风筝。

He found the way home by himself . 他自己找到了回家的路。

I like to go walking by myself . 我喜欢一个人散步。

Did you do it all by yourself ? 是你自己一个人做的吗？

She could do the work all by herself . 她自己一个人就能做这项工作。

提示

leave sb. by oneself表示“把（某人）一个人丢下”，相当于leave sb. alone。

She left the boy by himself at home. 她把那个男孩一个人丢在家里了 。

She left the boy alone at home.