英语中"since" and "for" 什么区别
答案:2 悬赏:30
解决时间 2021-01-15 06:07
- 提问者网友：缘字诀
- 2021-01-14 14:08
英语中"since" and "for" 什么区别
最佳答案
- 二级知识专家网友：举杯邀酒敬孤独
- 2021-01-14 15:08
一，since 的四种用法
1，since + 过去一个时间点（如具体的年、月、日期、钟点、ago. 1990 , last month , half past six I have been here since 1990. 1990起，我一直在这儿。
2，since+ 一段时间+ago
I have been here since five months ago。自从五个月前，我已经在这儿了。
3，since+从句Great
Changes have taken place since you left. 自从你走后，已经发生了很大的变化。
4，It is +一段时间+since从句
It is two years since I became an English teacher. 我成为英语老师有两年了。
二，Since 和for区别
1，Since +时间点，具体时间
“自从、、、以来，从、、、以后” 用来说明动作起始时间 。
I have been in Beijing since 2010.
2，For + 时间段，用来说明动作延续时间长度，因此句中的谓语动词，也应该是延续性动词。
I have been in Beijing for one year。
We have learnt English for about three years.
I have been here for 3 days. (对)
I have arrived here for 3 days.（误）
1，since + 过去一个时间点（如具体的年、月、日期、钟点、ago. 1990 , last month , half past six I have been here since 1990. 1990起，我一直在这儿。
2，since+ 一段时间+ago
I have been here since five months ago。自从五个月前，我已经在这儿了。
3，since+从句Great
Changes have taken place since you left. 自从你走后，已经发生了很大的变化。
4，It is +一段时间+since从句
It is two years since I became an English teacher. 我成为英语老师有两年了。
二，Since 和for区别
1，Since +时间点，具体时间
“自从、、、以来，从、、、以后” 用来说明动作起始时间 。
I have been in Beijing since 2010.
2，For + 时间段，用来说明动作延续时间长度，因此句中的谓语动词，也应该是延续性动词。
I have been in Beijing for one year。
We have learnt English for about three years.
I have been here for 3 days. (对)
I have arrived here for 3 days.（误）
全部回答
- 1楼网友：渡鹤影
- 2021-01-14 16:23
since+表示过去的时间点或从句(一般过去时)追答for+一段时间
两个都可以与现在完成时连用
如
He has worked here since two years ago.
或
He has worked here for two years.
两个都可以与现在完成时连用
如
He has worked here since two years ago.
或
He has worked here for two years.
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