一般過(guò)去將來(lái)時(shí)
形式：would+動(dòng)詞原形和was/were going to+動(dòng)詞原形
用于描述過(guò)去某時(shí)間里你對(duì)于未來(lái)的想法和猜測(cè)。

過(guò)去進(jìn)行時(shí)
形式：was /were + V-ing
表示在過(guò)去某一時(shí)刻或某一段時(shí)間內(nèi)進(jìn)行或發(fā)生的動(dòng)作。

例句對(duì)比：
（1）
We were going to have supper when the phone rang. 我們將要吃晚飯的時(shí)候電話(huà)響了。
We were having supper when the phone rang. 我們正在吃晚飯時(shí)電話(huà)響了。

（2）
I was going to read books when Jack came back. 杰克回來(lái)的時(shí)候我正要去看書(shū)。
I was reading books when Jack came back. 杰克回來(lái)的時(shí)候我正在看書(shū)。

（3）
She was having a lot of trouble with her heart. So, she said she would go to the hospital. 她有很?chē)?yán)重的心臟病，所以她說(shuō)她要去醫(yī)院看看。
She went to the doctor yesterday. She was having a lot of trouble with her heart.她昨天去看病了。她有很?chē)?yán)重的心臟病。

注意：少數(shù)動(dòng)詞可以使用過(guò)去進(jìn)行時(shí)來(lái)代表過(guò)去將來(lái)時(shí)，如：go, come, arrive, leave, start等嚴(yán)格按照時(shí)間起止的動(dòng)詞。

讓我們來(lái)通過(guò)例句感受一下：

（1）Lots of people were coming to buy chocolates. 許多人要來(lái)買(mǎi)巧克力。

（2）My sister told me that the train was leaving at 8 the next morning. 我姐姐告訴我火車(chē)會(huì)在明早8點(diǎn)出發(fā)。

（3）They wanted to know when we were leaving for another city. 他們想知道我們什么時(shí)候去另一個(gè)城市。

如何？同學(xué)們記住使用過(guò)去進(jìn)行時(shí)代替一般過(guò)去將來(lái)時(shí)的用法了嗎？