一、现在进行时被动语态结构： A. 陈述句： 主语+ am/is/are +being+过去分词 B. 疑问句： 疑问词+ am/is/are+主+being+ 过去分词

His speech is being broadcast on the radio. 他的讲话正在电台播放。 Is a new teaching building being built over there？ 那边正在建一座新的教学楼吗？