作业帮since从句的用法之一
来源：学生作业帮 编辑：作业帮 分类：综合作业 时间：2024/05/22 16:57:15
since从句的用法之一
since从句后接过去式还是完成式
since从句后接过去式还是完成式
是这样的 since从句后可以接一般过去式,也可以接现在完成式.
I have learned a lot from her since I have known her.(后面的动词必须是无限的持续性的,不能是瞬间动词).如不能说 It's ten years since his father has died.die 是瞬间动词,改为：It's ten years since his father died.这就是接一般过去式了.总之,接现在完成式时since翻译为“在\自...期间”.
I have learned a lot from her since I have known her.(后面的动词必须是无限的持续性的,不能是瞬间动词).如不能说 It's ten years since his father has died.die 是瞬间动词,改为：It's ten years since his father died.这就是接一般过去式了.总之,接现在完成式时since翻译为“在\自...期间”.