英语汉译英，很急呀!

在8：00~8：50，我们在上语文课：From 8 o'clock to 8:50,we were having a Chinese lesson.
在9：00~9：50我们在上英语课:From 9 o'clock to 9:50,we were having an English lesson.
12：00我们吃午饭:At 12 o'clock,we were having our lunch.
以上是描述过去发生的事情。

如果你的时间经常是这样安排的，则应该这样说：
在8：00~8：50，我们在上语文课：From 8 o'clock to 8:50,we have a Chinese lesson.
在9：00~9：50我们在上英语课:From 9 o'clock to 9:50,we have an English lesson.
12：00我们吃午饭:At 12 o'clock,we have our lunch.
以上是描述过去发生的事情。

We are going to have the Chinese lessons from 8 o'clock to 8:50, the English lessons from 9 o'clock to 9:50 and have lunch at 12 o'clock