过去将来进行时表示什么

到将来某一时刻会正在干什么

如
i would be sleeping at 10 o'clock tonight
今晚10点钟的时候我会正在睡觉

将来进行时的用法
将来进行时有助动词shall/will be + -ing形式构成。它主要表示按计划、安排将来某时将要进行或发生的动作。如：
What will you be doing on Sunday?
This time tomorrow we'll be watching a film.

过去进行时

1） 概念：表示过去某时正在进行的状态或动作。

2） 过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。

3) 常用的时间状语
this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while

My brother fell while he was riding his bicycle and hurt himself.
It was raining when they left the station.
When I got to the top of the mountain, the sun was shining.

典型例题
1) Mary ___ a dress when she cut her finger.
A. made B. is making C. was making D. makes
答案C. 割伤手指是已发生的事情，应用过去时。同 时，when表时间的同时性，"玛丽在做衣服时"提供事情发生的背景，因此用过去进行时。

2) As she ___ the newspaper, Granny ___ asleep.
read； was fal