2020年6月英语四级语法用法辨析：since的四种用法

华宇课件网英语四级频道为备考英语四级的同学们整理了英语四级语法用法辨析，希望可以为大家带来帮助，预祝大家高分通过大学英语四级考试。

　　2020年6月大学英语四级语法用法辨析汇总

　　英语四级语法用法辨析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、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 postgraduate student.

开学福利四六级新学期备考规划-0元领！

四六级新学期备考规划