Once in bed,the children usually start there.

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/04/29 08:36:52

Once in bed,the children usually start there.
我在一本英汉词典里看到这么一句话：
Once in bed,the children usually start there.
[词典翻译：这些孩子一旦上了床,一般就不再下来了.]
我的问题是：
这句话的第一部份省略了很多,我作出了还原：
Once the children are in bed,the children usually start there.
我的还原应该没错吧?
我想问的主要是为什么可以把助动词are给省略了?
这是一种什么形式的省略?

没错,这是状语从句在句首的省略,状语从句在句首时,如果从句的主语和主句的主语指的是同一个人或同一件事,并且从句主语后紧接有be动词时,这时可省略从句的主语及be动词.
When (you are) crossing the road,you had better look at the both sides.

首字母填空 Children in China usually start to go t the _______new year usually start in february once in their blood,it's usually there forever I usually start my homework_English in the evening. Children usually like playing in the garden in the afternoon there is no bed in the room. Once there was a boy in Toronto.His name was Jimmy .He start children usually like play in the park on sunday there four children in the picture There's a ( )(children) in the playground. Once in their blood,it's usually there forever.这句翻译成中文是什么意思呢 In the m___ of the room ,there is my bed.