初一上册英语知识点before的用法讲解

before prep. adv. & conj

在…之前;在前;以前;

短语：1.before long 不久以后：

e.g. Before long ,news came that China lost the game.

不久以后传来消息说中国队比赛输了。

2.the day before yesterday ：

e.g. He went to see his grandmother the day before yesterday.

他前天去看望他奶奶了。

3.long before 很久以前。

e.g.She said she had seen the film long before.她说很久以前就看过这部电影。

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