ever since 和since 还有since then 有什么区别?
来源:学生作业帮 编辑:神马作文网作业帮 分类:综合作业 时间:2024/09/27 12:21:19
ever since 和since 还有since then 有什么区别?
它们分别用在什么时态..在句子的哪个位置?怎么用?
它们分别用在什么时态..在句子的哪个位置?怎么用?
ever since 作为连词=since 完成时态---- ever since +主+动词简单过去式
例:I have known him ever since he was a child.
他从小我就认识他了.
这种用法同since 差不多,不过 ever since 比 since 用得少.
再如:We have lived in Shanghai ever since we came to China.(自从我们来到中国之后就住在上海.)
then本身是个过去的时间点,since then表示从那个时间点到现在的情况,一般是现在完成时.
比如 I have not gone there since then.
例:I have known him ever since he was a child.
他从小我就认识他了.
这种用法同since 差不多,不过 ever since 比 since 用得少.
再如:We have lived in Shanghai ever since we came to China.(自从我们来到中国之后就住在上海.)
then本身是个过去的时间点,since then表示从那个时间点到现在的情况,一般是现在完成时.
比如 I have not gone there since then.
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