someday [also some day] :at a time in the future that is not yet known ‘将来某一天; 有朝一日’
例如:I hope you come and visit me someday/some day.
one day :used when you are talking about a time in the past or future without actually saying when 表示非明确的过去或将来的某段时间 ‘某一天’
例如:He came to see me one day last week.
We must go and visit them one day.
也就是说someday/some day 只能用于将来时;而one day 可用于过去时或将来时.将来是中二者可替换.
some day与one day的区别:
1、one day与some day均可用作状语,表示“有一天”,但两者所连用句子时态稍有区别。
2、one day可指过去或将来,即可用于过去时态或将来时态。
3、some day通常只指将来,即只用于将来时态。在特定语境中some day有时可指过去将来。
拓展资料
some day
1、Some day I'll be a pilot
有朝一日,我会成为一名飞行员。
2、I hope some day you will find the woman who will make you happy
我希望有一天你能找到一个会让你幸福的女人。
3、Some day I will reciprocate your great kindness to me.
总有一天我会报答你对我的厚爱。
4、Some day I'll pay you back for this!
总有一天我会为此报复你。
5、We shall die some day.
我们总有一天要弃世而去。
one day
1、I just live in hope that one day she'll talk to me
我只是妄想着有一天她会和我说话。
2、One day he just upped and left.
有一天他突然就离开了。
3、One day I'll want to settle down and have a family
总有一天,我会想安定下来,成个家。
4、I have a feeling that everything will come right for us one day
我有种感觉,事情总有一天会变得对我们有利的。
5、I too dreamed of living in London one day
我也梦想过将来有一天能住在伦敦。
some day只用来指将来,而不能指过去,可译为“将来有一天”、“有朝一日”。例如:
①We must get together again some day.将来有一天我们会再次相聚。
②We hope to go to the moon some day.我们希望有朝一日会到月球上去。
one day不仅可以用来指将来,也可以用来指过去。用来指过去时,可以指任何时间的过去(近期的过去,遥远的过去),可译为“有一天”、“改日”。例如:
①We have lost 100 times,but one day we shall win!我们失败了100次,但是终有一天会取得胜利!
②One day a little monkey was playing in a tall tree by the river.有一天,一只小猴子在河边的一棵高高的树上玩耍。