一般過去將來時和過去進行時的異同

一般過去將來時
形式：would+動詞原形和was/were going to+動詞原形
用於描述過去某時間裏你對於未來的想法和猜測。

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過去進行時
形式：was /were + V-ing
表示在過去某一時刻或某一段時間內進行或發生的動作。

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

（2）
I was going to read books when Jack came back. 傑克回來的時候我正要去看書。
I was reading books when Jack came back. 傑克回來的時候我正在看書。

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

注意：少數動詞可以使用過去進行時來代表過去將來時，如：go, come, arrive, leave, start等嚴格按照時間起止的動詞。

讓我們來通過例句感受一下：

（1）Lots of people were coming to buy chocolates. 許多人要來買巧克力。

（2）My sister told me that the train was leaving at 8 the next morning. 我姐姐告訴我火車會在明早8點出發。

（3）They wanted to know when we were leaving for another city. 他們想知道我們什麼時候去另一個城市。

如何？同學們記住使用過去進行時代替一般過去將來時的用法了嗎？