2019年中考英语语法知识-过去进行时和一般过去时区别

　　1)过去进行时和一般过去时的基本差别是，过去进行时表示一个正在进行的动作，而一般过去时表示一个业已完成的动作。

　　试比较下面的句子：

　　She was knitting a sweater for Tom.她在给汤姆织一件毛衣。

　　She knitted a sweater for Tom.她给汤姆织了一件毛衣。

　　He was doing his homework in the afternoon.下午他在做作业。

　　He did his homework in the afternoon.下午他把作业做完了。

　　I was writing an essay.我在写一篇论文。(可能还没写完)

　　I wrote an essay yesterday.我昨天写了一篇论文。(已写完)

　　They were building a skyscraper.他们在建一座摩天大楼。(在修建)

　　They built a skyscraper.他们盖了一座摩天大楼。(已盖好)

　　2)有些动词本身并不表示动作完成，如rain,snow,cough,wear,feel,wait,stay,work等，这时用两种时态意思上差别不大：

　　It snowed all night.下了一整夜的雪。

　　It was snowing all night.

　　She wore a blue coat.她穿着一件蓝外套。

　　She was wearing a blue coat.

　　He felt a bit uneasy.他感到有点不自在。

　　He was feeling a bit uneasy.

　　We stayed in a hotel.我们住在旅馆里。

　　We were staying in a hotel.

　　3)用进行时态有时有感情色彩，特别是带有always,forever,constantly这类状语时，如：

　　He was always ringing up.他总是给我打电话。(厌烦)

　　She was always working.她总是不停地干活。(赞扬)

　　The old lady was forever grumbling.这老太太老是嘀嘀咕咕。(厌烦)

　　He was constantly changing his mind.他总是改变主意。(不以为然)

　　4)有时用进行时表示现在的想法，可以显得客气一点，如：

　　I was wondering whether you could give me some advice.不知你能否帮我出点主意。

　　I was thinking maybe he could go by taxi.我在想或许他可以坐的士去。

　　I was hoping you could reconsider our proposal.我希望你能再考虑一下我们的建议。

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