一、過去分詞(短語)作狀語時，其邏輯主語通常就是句子的主語。過去分詞(短語)作狀語一般都用逗號同其它成分隔開。
1.作時間狀語時，可轉換為when或while等引導的從句，通常放在句首。
Seen from the top of the hill (= When it is seen from the top of the hill), the school looks like a big garden.
從山上看，這個學校像個大花園。
2.作條件狀語時，可轉換為once, if或unless等引導的從句，一般放在句首。
Given more attention (= If it was given more attention), the fire could have been avoided.
如果多注意一些，這場大火本來能避免的。
3.作原因狀語時，可轉換為because, as或since等引導的從句，多放在句首。
Encouraged (= As she was encouraged) by the teacher, the girl was very happy.
由於被老師鼓勵，這個女孩兒非常高興。
4.作讓步狀語時，可轉換為though, although或even if引導的從句，常放在句首。
Left (= Although she was left) alone at home, Jenny didn’t feel afraid at all.
儘管被單獨留在家裡，但是珍妮一點都不害怕。
5.作方式或伴隨狀語時，常可轉換為並列分句，可位於句首或句末。
Surrounded by his students, the teacher went into the lab. (= The teacher was surrounded by his students and he went into the lab.)
這個老師被學生們環繞著走進了實驗室。
6.過去分詞(短語)作狀語時，有時為了強調，前面可帶連詞when, while, if, though, as if, unless等。
When given a physical examination, you should keep calm.
做體檢的時候，你應該保持鎮靜。
一、過去分詞(短語)作狀語時，其邏輯主語通常就是句子的主語。過去分詞(短語)作狀語一般都用逗號同其它成分隔開。
1.作時間狀語時，可轉換為when或while等引導的從句，通常放在句首。
Seen from the top of the hill (= When it is seen from the top of the hill), the school looks like a big garden.
從山上看，這個學校像個大花園。
2.作條件狀語時，可轉換為once, if或unless等引導的從句，一般放在句首。
Given more attention (= If it was given more attention), the fire could have been avoided.
如果多注意一些，這場大火本來能避免的。
3.作原因狀語時，可轉換為because, as或since等引導的從句，多放在句首。
Encouraged (= As she was encouraged) by the teacher, the girl was very happy.
由於被老師鼓勵，這個女孩兒非常高興。
4.作讓步狀語時，可轉換為though, although或even if引導的從句，常放在句首。
Left (= Although she was left) alone at home, Jenny didn’t feel afraid at all.
儘管被單獨留在家裡，但是珍妮一點都不害怕。
5.作方式或伴隨狀語時，常可轉換為並列分句，可位於句首或句末。
Surrounded by his students, the teacher went into the lab. (= The teacher was surrounded by his students and he went into the lab.)
這個老師被學生們環繞著走進了實驗室。
6.過去分詞(短語)作狀語時，有時為了強調，前面可帶連詞when, while, if, though, as if, unless等。
When given a physical examination, you should keep calm.
做體檢的時候，你應該保持鎮靜。