比较两者的区别：

在英语语法里，一般将来时描述未来一个还未发生的动作或事件。一般将来时也用于预测或展现能力、目的和决心。

过去将来时描述过去某个时间点对未来的看法。

例如：（1 ） I think we are going to eat out tonight. 我想我们今晚会出去吃饭。

I thought we were going to eat out tonight. 我想我们今晚会出去吃。（过去想的）

（2）He says that he won't finish his work this afternoon. 他说他今天下午完成不了工作。

He said that he wouldn't finish his work this afternoon. 他说他今天下午完成不了工作。（过去说的）

一般将来时与过去将来时的练习：

( ) 1. He ____very busy this week, he ___free next week.

A. will be; is B. is; is C. will be; will be D. is; will be

( ) 2. We didn't know whether he ________ speak at the meeting.

A. is going to B. was going to C. went D. go

( ) 3. She said they _____ before the end of this month.

A . would return B. will return C. returned D. return

( ) 4. –________ you ________ free tomorrow?

– No. I ________ free the day after tomorrow.

A. Are; going to; will B. Are; going to be; will

C. Are; going to; will be D. Are; going to be; will be