写出十对句子说明现在完成时和一般过去时的区别

如题所述

1 I had lunch . 我吃午饭了。(现在饿不饿不知道)
I have had lunch . 我吃午饭了。(现在不饿)
2 He worked in a bank . 他在一家银行上班。(现在不一定还在这家银行。)
He has worked in a bank . 他在一家银行上班。(现在一定还在这家银行。)
3 He lost his key . 他钥匙丢了。(现在有没有新的钥匙不一定。)
He has lost his key .他钥匙丢了。(现在还没有新的钥匙。)
4 They cleaned the room . 他们打扫了房间。(现在没在打扫。)
They have cleaned the room . 他们打扫了房间。(现在已经打扫干净了。)
5 Tom learned Chinese . 汤姆学过汉语。(现在会不会不知道)
Tom has learned Chinese .汤姆学过汉语。(现在依然会)
6 She painted the house . 她粉刷了房子。(现在刷没刷完不确定)
She has painted the house .她粉刷了房子。(现在已经刷完了)
7 He watered the tree . 他浇树了。(现在需不需要浇水不一定)
He has watered the tree .他浇树了。(现在不需要再浇水)
8 He finished his homework . 他写作业了。(写没写完不确定)
He has finished his homework . 他写完作业了。(现在没有其他要写的)
9 They aired the bedroom . 他们给房间通过风了。(现在房间里是否需要再通风不确定)
They have aired the bedroom .他们已经给房间通风了。(现在房间不需要再通风了)
10 It stopped raining . 雨停了。(现在下不下不确定)
It has stopped raining .雨已经停了。(现在不下了)
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