ince for什么意思? since是什么意思中文翻译是什么意思啊了
ince 和 for 的用法与区别
since 和 for 是英语中表示时刻或缘故的两个常用词,但用法和语义有显著差异。下面内容是两者的核心区别及用法解析:
一、时刻用法对比
ince
- 含义:表示从过去某一时刻点开始,持续到现在的动作或情形,强调时刻的起点。
- 结构:
- since + 时刻点(如年份、日期):
have lived here since 2020.(我自2020年起一直住在这里。)
- since + 从句(从句动词用一般过去时):
he has been sad since her cat *d.(自从她的猫去世后,她一直很伤心。)
- since + 时刻点(如年份、日期):
- 时态要求:主句需用现在完成时或现在完成进行时,强调延续性。
or
- 含义:表示动作或情形持续的时刻长度,强调时刻段。
- 结构:for + 时刻段(如天数、年数):
e stu*d for three hours yesterday.(他昨天进修了三小时。[3])
- 时态要求:可与多种时态连用(如现在完成时、一般过去时):
worked here for ten years.(我曾在这里职业过十年,现已离开。)
换制度:
- for + 时刻段 ≈ since + 时刻段 + ago
e have waited for two hours = We have waited since two hours ago.
二、缘故用法对比
ince
- 含义:引导缘故状语从句,表示“既然”或“鉴于”(已知事实),语气比 because 弱。
- 位置:从句常置于句首:
em>Since you are tired, let’s take a break.(既然你累了,我们休息一下吧。)
or
- 含义:作为并列连词,补充说明辅助性缘故,不能回答 why 的难题。
- 位置:置于主句后,用逗号隔开:
e must be home, for the lights are on.(他一定在家,由于灯亮着。)
三、其他用法与注意事项
特句型:
- It is/has been + 时刻段 + since…:
em>It has been five years since we met.(我们已五年未见。)
- How long 提问:
em>How long have you been here? — For a week / Since Monday.
- It is/has been + 时刻段 + since…:
词类型限制:
- for 需搭配延续性动词(如 live, work),非延续性动词(如 borrow, *)需转换:
He has borrowed the book for a week.
? He has kept the book for a week.
- for 需搭配延续性动词(如 live, work),非延续性动词(如 borrow, *)需转换:
见错误:
- 混淆时刻点与时刻段:
I have stu*d English since three years.
? I have stu*d English for three years 或 since 2022.
- 混淆时刻点与时刻段:
四、拓展资料
- 时刻:since 强调起点(时刻点),for 强调长度(时刻段)。
- 缘故:since 表示已知前提,for 补充辅助缘故。
- 动词:注意延续性动词与非延续性动词的转换。
么样?经过上面的分析对比和例句,可以更准确地掌握两者的用法区别。如需更多练习,可参考语法教材或例句库。
