在线英语听力室

since的四种用法

时间：2016-11-18 04:27:40

（单词翻译:单击）

 　　1) since +过去一个时间点　(如具体的年、月、日期、钟点、1980, last month, half past six)。

　　I have been here since 1989.
　　2) since +一段时间+ ago
　　I have been here since five months ago.
　　3) since +从句
　　Great changes have taken place since you left.
　　Considerable time has elapsed since we have been here.
　　4) It is +一段时间+ since从句
　　It is two years since I became a postgraduate1 student.

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1 postgraduate ulMzNh     
adj.大学毕业后的，大学研究院的；n.研究生
参考例句：
  • I didn't put down that I had postgraduate degree.我没有写上我有硕士学位。
  • After college,Mary hopes to do postgraduate work in law school.大学毕业后， 玛丽想在法学院从事研究工作。