中考英语近义词辨析：ago/before

中考英语近义词辨析ago/before

　　Ⅰ. ago adv. “……以前”指从此刻起，若干时间以前，通常与过去连用。如

　　①        It happened to days ago.这件事发生在两天以前。

　　②        I t him a fe minutes ago.我在几分钟以前碰到他。

　　Ⅱ. before adv， prep & nj “……以前”指从那时起若干时间以前。通常与完成时、过去时等连用。还可用作前置词或连接词表时间，而 ago 则不能这样用。

　　①        He said that he had seen her to days before.他说他两天前见到过她。（表从她说话那时起两天前）

　　②        I had been fine the day before.(那天)前一天的天气很好。

　　③        I’ve seen that film before.

　　④        I never t him before.