分詞構句being用法

有時分詞構句被動句法可看到being的出現
being是怎麼變化而來的?

被動語態是由be+Vpp所組成, 所以在分詞構句中, 被動語意的Vpp前面都隱含著being, 不論有沒有寫出來.


只要看到being後面再接過去分詞 being一律可略?

不完全如此, 因為不寫出being時, 它只是單純的被動語意; 帶有being時, 不但是被動, 而且有動作持續中的語意.

Brought to the police station, he still believed that he had done nothing
wrong.
被押往警局, 他仍堅信他沒做錯事.

Being brought to the police station, he thought of his father's advice.
被押往警局途中, 他想起了他父親的忠告.

不過:
1) 如果Vpp是瞬間動詞, 則前面的being可省略.
(Being) hit by a car, he was badly wounded.
2) 如果Vpp是形容詞語意, 則前面的being可省略.
(Being) satisfied with the terms and conditions, he signed the agreement.


2011-10-30 13:48:48 補充：
The weather being bad, the football match was canceled.
這句是一個「分詞構句的主詞與主句的主詞不同, 分詞前必須寫出其主詞」的句型.
這個being是分詞構句的動詞本尊, 而非助動詞性質, 當然不可省略.
= Because/As the weather was bad, the football match was canceled.

下面這句的being就可省略:
My purse (being) stolen, I have no money to pay for the meal.

可以舉一下例嗎？寫幾個句子出來再解釋會比較好。