第二部分 专项语法 高效突破专项 5 介 词考点 1 时间介词1
辨析 in , on 与 at高频考点精讲用法例句in用在星期、月份、季节、年、朝代、世纪或非特指的早、午、晚等较长一段时间前in 1988 , in the 21st century , in winter , in March , in the day , in the morning on具体某一天或具体某一个早、午、晚on Saturday evening , on the May seventh , on a windy night,on the afternoon,on October 31stat在某一点时间或某个瞬间at eight o’clock , at the end of,at this moment , at this time , at times / at a time / at one time , at the age of2 .辨析 for , since 与 during 用法例句for“for +一段时间”常表示“持续了一段时间”,常与现在完成时连用He has been in Beijing for 3 years
他在北京已经三年了
since“since +时间点”常表示一个“点时间”,常与现在完成时连用He has been in Beijing since three years ago
他三年前来的北京
during 表示“在……期间”,常用于一般将来时I was in Beijing during last summer
我去年夏天期间在北京
3 .辨析 in 与 after 用法例句in表示说话时或以现在为起点的将来一段时间之后,用于将来时He will come back in two days
他将在两天之后回来
after表示以过去某一时刻为