现在完成时since和for的用法,要具体的讲解
3个回答
展开全部
since是自从的意思, 如 I have lived in Shanghai since I came back from USA. 自从从美国回国后我一直住在上海,since 引领的是一个动作。
for 引领的是一个时间段。如 I have lived in Shanghai for ten years.
希望对你有所帮助。
for 引领的是一个时间段。如 I have lived in Shanghai for ten years.
希望对你有所帮助。
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
since 后时间点。since nine o'clock. 或跟从句
for 后时间段 for nine hours.
I have been in China since two years ago= I have been in China for two years.
I have taught math since I came here
for 后时间段 for nine hours.
I have been in China since two years ago= I have been in China for two years.
I have taught math since I came here
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询