Asked (＝When she was asked) her future plans, the girl said that she wanted to be a teacher.

　　当问到未来的计划时， 这个女孩说她想成为一名教师。

　　(2)过去分词作原因状语时，可转换为as, since, because等引导的原因状语从句。

　　Frightened (＝Because/As she was frightened) by the tiger, the girl didn't dare to sleep alone.

　　因为被老虎吓着了， 这个女孩不敢单独睡觉。

　　(3)过去分词作条件状语时，可转换为if, unless或once等引导的条件状语从句。

　　Grown (＝If these seeds are grown) in rich soil, these seeds can grow fast.

　　如果种在肥沃的土壤里，这些种子能长得很快。

　　Given (＝If we were given) more time, we could do it better.

　　 如果给我们更多时间的话，我们可以做得更好。

　　[名师点津]　此句中的given在许多语法书中作为介词处理。

　　(4)过去分词作让步状语时，可转换为although, though或even if等引导的让步状语从句。

　　Left (＝Although he was left) at home, John didn't feel afraid at all.

　　虽然John被单独留在家里， (但是)他一点都不害怕。

　　 (5)过去分词作状语表示伴随、方式或状态时，不能转换为状语从句，但是可转换为并列谓语或并列分句。

　　The teacher entered the classroom, followed (＝and he was followed) by a group of students.

　　老师进入教室，后面跟着一群学生。

　　 (6)作方式状语，如有连词 as if，就转换为as if引导的方式状语从句；也可以转换为并列结构。

　　He began to cry as if bitten by a snake.

　　＝He began to cry as if he was bitten by a snake.

　　他大叫起来，好像被蛇咬了。

　　(7)过去分词作结果状语(相当于结果状语从句)。

　　He failed in the competition, blamed by his companions.

　　＝He failed in the competition, so that he was blamed by his companions.

　　他在比赛中失败了，受到了同伴的责备。

[名师点津]　过去分词(短语)作时间、条件或让步状语时，为了明确其意义，有时可在过去分词(短语)前加上when, while, if, once, unless, although等连词，即我们通常所说的