怎样区分过去式和过去进行时
3个回答

过去式指在过去的一段时间里发生某个动作,而且动作已完成.过去进行时指过去的一段时间里(曾经)正在进行的动作.

如,I was reading a book when he came into the room.

当他进房间时(过去的一段时间),我正在读书.

He helped his mother (to) do the housework yesterday.

昨天他帮妈妈做家务(过去的一段时间里 已完成动作)

一般句子有 yesterday,a year ago,last week 表过去时间的词语,用过去式.

过去进行时要结合前后句子,根据中文意思判断.

They_________(talk) about it,I didn't want to disturb them

结合后面的句子,我想不打扰他们是因为他们(当时)【正在】讨论XX,所以要用 【were talking】

I was practising the violin at 8 o'clock yesterday evening.

强调的是昨天晚上8点(某个时间点)我正在练习小提琴

I practised the violin yesterday evening.

指昨晚我练习了小提琴