分词短语做状语是不是 如果若干句子主语一致 就可以用这个?那该如何用呢.

分词短语做状语
是不是 如果若干句子主语一致 就可以用这个?
那该如何用呢.

1.分词作状语实际把状语从句简化.简化的条件：其逻辑主语一定要与主句的主语保持一致.
While he was reading the book,he nodded from time to time.
----Reading the book,he nodded from time to time.
Because he was shy,he didn’t come to the party.
----Being shy,he didn’t come to the party.
As the book is written in simple English,the book is easy to read.
----Written in simple English,the book is easy to read.
2.分词作状语时可分为以下几种形式：
* doing ：用来表示主动,且前后动作同时进行.
Returning home later,my friend learned that the police had been to the flat.
* having done:用来表示主动,且动作发生在主句之前.
Having seen the film before,I decided not to see it again.
* being done:用来表示被动,且前后动作同时进行.
Being questioned by the police,he felt frightened.
* done:用来表示被动且完成
Destroyed in the storm,the house will be rebuilt.
* having been done:用来表示被动,而且强调动作持续 一段时间或次数.
Having been defeated three times,he had to give up.
* 否定形式：not/ never + 分词结构
Not studying hard,he didn’t pass the test.
Never having taken a plane before,he was nervous.
3.分词作状语如果前后主语一致可简化时间、条件、原因、结果和伴随等状语从句.
(条件)
If you work harder,you will do better in the exam next time.
---- Working hard,you will do better in the exam next time.
（时间）
After I did my homework,I went back home.
----Having done my homework,I went back home.
(伴随）
He hurried to the station and hoped to catch the last train.
---- He hurried to the station,hoping to catch the last train..
(原因)
Because my friend was frightened of losing his job,he said nothing to the police.
----Frightened of losing his job,my friend said nothing to the police.
(结果)
His parents were killed in the SARS epidemic and left him an orphan.
---- His parents were killed in the SARS epidemic,leaving him an orphan.