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 two days ago.这件事发生在两天以前。
② I met him a few minutes ago.我在几分钟以前碰到他。
Ⅱ. before adv, prep & conj “……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 two 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 met him before.
国内英语资讯:Top legislator stresses theoretical study of peoples congress system
国内英语资讯:U.S. must lift all additional tariffs for agreement with China: commerce ministry
国际英语资讯:2 protesters arrested for burning U.S. flag outside White House on Independence Day
体坛英语资讯:Afellay returns to PSV after eight years
如何在空闲时间使你完全恢复过来
欧洲“毒黄瓜” 肠菌病毒已扩散至12国
美国大学生就业职场出现的新变化
体坛英语资讯:Peru rally to beat Bolivia in Copa America
端午节自己DIY粽子
英国成人压力大 每天发愁36分钟