Essential Grammar in Use(Third Edition)--Present perfect Unit20

最新推荐文章于 2018-10-06 17:01:16 发布

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最新推荐文章于 2018-10-06 17:01:16 发布

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本文详细解析了英语中过去时与现在完成时的区别和用法，通过具体例句帮助读者理解何时使用过去时描述已完成的动作，以及何时使用现在完成时表达与现在状态相关联的过去行为。

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With a finished time (yesterday/ last week etc.), we use the past (arrived/ saw/ was etc.)

past + finished time

We arrived

yesterday.

last week.

at 3 o'clock.

in 2002.

six months ago.

Do not use the present perfect (have arrived/ have done/ have been etc.) with a finished time:

I saw Paula yesterday. (not I have seen)
Where were you on Sunday afternoon? (not Where have you been)
We didn't have a holiday last year? (not We haven't had)
What did you do last night? I stayed at home.
William Shakespeare lived from 1564 to 1616. He was a writer. He wrote many plays and poems.

Use the past to ask When ...? or What time ...? :

Compare:

present perfect	past
I have lost my key. (= I can't find it now) Ben has gone home. (= he isn't here now) Have you seen Kate? (= where is she now)	I lost my key last week. Ben went home ten minutes ago. Did you see Kate on Saturday?
*time until now*	*finished time*
Have you ever been to Spain? (= in your life, unitl now) My friend is a writer. He has written many books. The letter hasn't arrived yet. We've lived in Singapore for six years. (= we live there now)	Did you go to Spain last year? Shakespeare wrote many plays and poems. The letter didn't arrive yesterday. We lived in Glasgow for six years, but now we live in Singapore.