時間狀語從句中when, while, as的區別有哪些
狀語從句是一較大的語法項目,也是近幾年高考題中常見的一個重要試點。
下面是着重爲大家講解:時間狀語從句中when, while, as的區別
1)when引導從句時,主從句的動作有先有後,也可以同時進行,從句的動作可以是持續性的,也可以是短暫的。
如:
When I got to the airport, the plane had already taken off. (主先從後)(短暫性)
When I lived there, I used to go to the seaside on Sundays. (同時) (持續性)
When the movie ended, the people went back. (從先主後)
2)while側重主從句動作的對比,且從句的動詞必須是持續性的。
如:
While we were chatting she was looking at the time table on the wall.
3)as引導從句時側重主從句動作同時或幾乎同時進行,從句的動作可以是持續性的,也可以是短暫的。
如:
Sometimes I watch TV as I am having breakfast.
4)when和while還可以是並列連詞,意思分別是“就在這時”,“然而”。
如:
I was having a rest on the sofa when the telephone rang.
They were surprised that a child should work out the problem while they couldn’t .
注:並列連詞when常用與以下句型中:
①…was/were doing…when…(正在做…突然)
②…was/were about to do…when…(剛要做…突然)
③…was/were on the point of doing…when…(剛要做…突然)
④…had just done…when….(剛一…就)
⑤Hardly/Scarcely had…done…when…(剛一…就)
好了,以上就是關於時間狀語中when, while, as區別的介紹,還請大家在平時勤加練習。