初中英语重点词汇辨析：by oneself, for oneself, in oneself, of oneself

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这些词组都包含oneself这个单词。

by oneself意思是“单独地”、“靠自己地”（alone or independently）。

His father lives by himself in the village.

他的父亲独自一个人住在村里。

All his friends have deserted him and he is all by himself now.

他所有的朋友都离弃他，现在他孤独一人。

for oneself意义为“为自己”（for himself or for herself）。

One should not live only for oneself.

人不应单为自己而活。

in oneself意思是“就其本身或本性而言”。

This wood is hard in itself.

这种木头本要就是硬的。

of oneself意思是“自然地”、“自发地”、“自动地”（of one's own accord）。

Every day I awake of myself at half past five.

每天早上我都是五点半就自己醒来。

The door opened of itself.

门是自己开的。

The fire went out of itself.

火自己熄灭了