上一讲，我们学习了过去完成时。大家可以参考－全力直击英语语法第13讲过去完成时。这一讲，我们来学习一般过去将来时。本文共分五部分。请大家认真学习。

构成
一般过去将来时是由"should/would + 动词原形"构成的。
He asked me yesterday when I should leave for Paris.
昨天他问我什么时候动身去巴黎。
They wanted to know how they would finish the homework earlier.
他们想知道怎样才能早一点儿完成家庭作业。

用法
一般过去将来时的出发点是过去，即从过去某一时刻看以后要发生的动作或状态。
　①一般过去将来时常用于间接引语中
He said they would arrange a party.
他说他们将安排一个晚会。
I asked if he would come and fix my TV set.
我问他是否来帮我修电视机。

　②一般过去将来时可用来表示非真实的动作或状态
If I had a chance to study abroad, I would study at Cambridge University.
如果我有机会出国学习的话，我就会去剑桥大学。
I wish he would go with me to the cinema tonight.
今晚他能和我一起去看电影就好了。

过去将来时间其他表达法
　①was/were going to + 动词原形
He said that he was going to live in the country when he retired.
他说他退休后要住在农村。
They thought it was going to rain.
他们认为天要下雨了。
　②was/were + 动词-ing形式
Nobody knew whether the guests were coming.
没人知道客人们是否要来。
I was told that the train was leaving in a few minutes.
我被告知火车几分钟后就要开了。

　③was/were + 动词不定式
She said she was to clean the classroom after school.
她说她放学后要打扫教室。
 
It was reported that another bridge was to be built across the Yangtse River.
据报道长江上将要再建一座大桥。

注意：
"was/were going to + 动词原形"或"was/were +动词不定式完成式"可表示未能实现的过去将来时间的动作。
Last Sunday we were going to visit the Great Wall, but it rained.
上星期天我们本想去游览长城的，但却下雨了。（没有去成）
I was to have helped with the performance, but I got flu the day before.
我是打算帮忙演出的，但前天我感冒了。（没有帮上忙）

④was/were about to do
"was/were about to do"表示说话的瞬间就会发生的动作。
I felt something terrible was about to happen.
我觉得有可怕的事要发生了。

⑤was/were on the point of doing
I'm glad you have come. I was on the point of calling you, but you've saved me the trouble now.
很高兴你来了。我正准备给你打电话，现在你省去我这个麻烦了。

提示：
"be about to do" 和 "be on the point of doing"结构一般不与表示将来的时间状语连用，但后面可以接when引导的分句。
I was about to start when it suddenly began to rain.
我正要动身天突然下雨了。