时间介词作为中高考的必考点，在新概念英语中也是非常重要的一个知识点。
下面我们就列出常见的一些时间介词来进行讲解
- at：在某个时间点
- in：①一段时间，如：星期、月、季节、年（份）；②泛指的“在上午/ 下午/ 晚上，但是：泛指的noon / night说at noon / night”
- on：某天或某天的上午、下午或晚上， on Monday (Tuesday, Wednesday) morning/ afternoon/ evening/ night
- for：表示时间段，表示“计；达”They will stay here for a month. I have lived in the city for ten years.
- during:时间段，“在……期
- 间”during the winter/ performance
- by：“到……为止到…… We had finished our work by last Friday.
- after：“在……之后”After the earthquake, everything was out of order.
- before：“在……之前”Wash your hands before dinner.
- until/ till：“在……以前”；“到……为止” We worked until darkness.
- from… to…：“从……到……”Weekdays are from Monday to Friday.
____ spring , ___ the evening, ___ the middle of May, ___ 2014 ,____ his thirties ___ five hours, ____ January, _____ the 1990's, ____ / during the day
总结1：在月，四季，年，年代，世纪，泛指的在上午/下午/晚上时间短语里，以及其他表示较长时间的名词短语前，用介词in
__ Wednesday, __ Sundays, ___ the morning of May 1st, __ a cold night,__ a rainy afternoon, __ the fifth of July,____ Christmas Day, ____ Easter Day
总结2：在星期，具体某一天的上午/下午/晚上，以及节加日当天，用介词on.
___ 3 pm, ____ night, ___ that moment , ___ present, ____ Christmas Eve,____ Christmas, ____ breakfast/ lunch, ____ midnight, ___ the age of 12,____ the beginning of the year
总结3：在时间点、中午(noon)晚上(night)固定搭配里，以及节假日期间用介词at。
具体讲解
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