常用时间介词用法 介词的意义和用法相当复杂、灵活。本文试对考生经常出错的几组时间介词的用法进行探讨，以期对考生备考有所帮助。 一、 at, in 例1 Both Mary and Betty will get married this year. Mary is going to begin their honeymoon Christmas while Betty _____New Year’s Day. A. on; on B. at; in C. at; on D. by; on 评析 此题选 C。at 主要用来表示时点，但也可以表示时段，主要用在某些一年中重要的节日名称之前，不仅表示节日的当天，而且也表示整个节日的期间。但如果节日名称后面紧跟 day，那就是表示节日当天，不能用at，而要用on。 例2 Suffering from the terrible earthquake, the victims often awake several times _____the night and sometimes they even cannot sleep _____night. A. in; at B. at; in C. during; in D. in; during 评析 此题选 A。at night 表示整个夜晚，或指白天结束、夜幕刚降临时，而 in/during the night 则指夜间的某一时刻。 二、 in, after 例3 He went abroad for further education _____a few weeks. He will go abroad for further education _____a few weeks. A. in; in B. after; after C. in; after D. after; in 评析 此组题选 D。in 和 after 通常表示“在„„（时间）以后”，但 in 一般用于将来时，而 after 则主要用于一般过去时。 例4 No hurry! The train will be here ________a few minutes. No hurry! The train will be here __________twelve o’clock. No hurry! The train will be here __________lunch. A. after; in; at B. in; after; after C. after; in; after D. in; after; in 评析 此组题选 B。in 和 after 都可以用于将来时，但有两点不同：（1）in 以现在为起点，而 after 则以将来为起点。（2）in 后接时段，而 after 后接时间点或表示某一事件的名词。 此外，in 亦可表示“在„„（时间）以内”，试比较： The project was finished in less than two years. A dynamic train does the journey from Nanjing to Shanghai in about two hours. We will learn a foreign language well in three years. 分析以上例...
