题目

participle clauses(分词分句)
像下面这几个例子
到底是怎么转换的 什么变 什么不变
例
after i had done my homework ,i slept for 8 hours
having done my home work,i slept for 8 hours
when you enter the room ,you should say "hi"
entering the room ,you should say "hi"
下面是几道题 怎么转变成例子中的形式?
after i settled into my seat,l felt tired.
_______________________________________________
as l sipped aglass of lemonade,i remember thinking "only a couple of hours and i'll be home "
________________________________________________
since i didn't have anything to do at the airport,i took a tirp around the city.
_________________________________________________________
when everybody was getting out of the plane,the didn;t make any noise
________________________________________________
because he wastired,he coulden't wake up after landing
____________________________________________________
as he studied his lessons,he has become one of the top students of the class.
_____________________________________________________
just as he opening class door,the teacher realized that he was escaping.
________________________________________________________
before he didn't tell his name,george recognized him
____________________________________________________
because he hadn't studied his lessons,he couldn't pass the class.
_____________________________________________________
as he was tall,he could join the basketball team.
__________________________________________________________

提问时间：2020-12-30

答案

这是事实就是把状语从句从句变成分词结构作状语.
如果从句的主语与主句的主语一致的话,我们就可去掉连词,去掉主语,然后将动词变为ing形式.
如果从句中是be动词加名词,形容词等,则将be改为being.
如果从句是被动语态,则直接留下过去分词.
如果从句是进行时态,则将be去掉,直接留下doing.
如果从句是完成时,在将have,has,had先改为having再留下.
如果从句中有after,则原句也要改为having done结构.
如果两个句子的主语不一致,在从句的主语要留下,其他变法一样,这叫做独立主个结构,听老师说过吧.
Having setteled into..,I felt tired.
Sipping aglass of lemonade,i remember thinking "only a couple of hours and i'll be home "
Not having anything to do at the airport,i took a tirp around the city.
Getting out of the plane,everyone didn't make any noise .
Being tired,he coulden't wake up after landing
Having studied his lessons,he has become one of the top students of the class.
He opening class door,the teacher realized that he was escaping.
He telling his name, george recognized him
Not having studied his lessons,he couldn't pass the class.
Being tall,he could join the basketball team.