didn't finish和have not finish的区别

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/06/13 04:58:45

didn't finish和have not finish的区别
请问以下2句有什么微妙的区别吗：
1.He didn't finish his homework.
2.He hasn't finished his homework.

两句话两个不同的时态
1.He didn't finish his homework.一般过去时,表示过去发生的动作,对现在情况没有影响,他之前没有完成那个作业,现在完成没有不知道
2.He hasn't finished his homework.现在完成时,have/has+过去分词表示过去发生的动作对现在造成的影响,他到现在为止作业一直没有完成

didn't finish和have not finish的区别请问did,didn't和have,haven't有什么区别吗?它们都是代表过去的,比如I didn't finish end和finish的区别 accomplish和finish的区别? finish doing sth和 finish to do的区别? finish to do 和 finish doing 的区别 finish the homework和finish homework的区别 finish doing sth和 finish to do sth的区别? finish doing sth 和finish to do sth的区别 finished和finish区别 I didn't finish the work on time.Alice didn't didn't finish We didn't have enough time.We couldn't finish the work.(合并句子