be加过去分词和过去分词的区别（be过去分词构成的短语通常表示主语的一种状态）

下面的“be 过去分词”构成的短语通常表示主语的一种状态。去掉be后，通常可用过去分词作状语：

be worried about 对……担心

be lost in thought陷入沉思

be addicted to 对……沉迷

be faced with面临

be interested in对……感兴趣,

be absorbed in专注于某事

be concerned about对……关注

be pleased with 对...高兴

be surprised at/对...惊讶

by be satisfied with对……满意

be armed/ equipped with装备着

be dressed in 穿着

be seated on/in坐在……

be located in/on/at坐落在某处

be engaged to与……订婚

be engaged in 忙于某事

be caught in被困，突然遇到

be devoted to doing致力于某事

be determined to do下定决心做某事