首先你要有這樣的觀念：
現(xiàn)在分詞的一般式（v-ing) 表示1.主動并進行,但有時表示 2.主動卻不進行的動作：
如：1.The man speaking on the stage.=The man who is/was speaking on the stage.
2.The window facing south...=The window which faces south.
過去分詞（p.p) 一般表示 1.被動且完成的動作如：The house built last year...=The house which was built last year...
2.完成卻不被動的動作如：the fallen leaves= the leaves that has fallen
an escaped convict= a convict that has/had escaped