Simone
happen过去式happened。它是不及物动词，没有被动语态。 如：The story happened in 1601. What happened then？这句话不能说What was happened then？ 在这里What 做主语，这是一个主谓结构。 1.发生 The accident happened outside my house. 这个事故发生在我家房子的外面。 2.（与to连用）碰巧,巧遇 I happened to be in the market yesterday when a fire started. 昨天发生火灾时，我正好在市场上。 I happened to see Peter on the way to the bookstore yesterday. 昨天我去书店的路上碰巧遇见了彼得。 3.（与on, upon连用）偶然发现 I happened on an old country hotel during the last summer holidays. 去年暑假期间我偶老纯然发现了一家古老的乡村旅馆。 4.happen to．．裤纤．临到某人头上 Did you hear what happened to David last night? 你听说大卫昨天晚上发生什么事了吗胡含仿?
