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2017届高三广东北师大版英语一轮复习学案： M2 unit 5 Rhythm（2） 6. occasion n. ①时刻,场合,时候 on many occasions 在许多场合 on rare occasion 偶尔 on this / that occasion 这时/那时 on last / present occasion 在上次/这次 on another occasion 那回 on one occasion=once 有一次 ②时机 occasion for This is not an occasion for making a joke. 这不是开玩笑的时候。 ③特殊的时间或者庆典 Birth, marriage and death are the three important occasions in a person’s life. 出生、结婚、死亡是人生中最重要的三个时刻。 ④on the occasion of 正值……之际 Mooncakes sell well on the occasion of Mid-autumn Festival. 月饼在中秋节卖得很好。 I like to have a walk with my little dog on occasion. 我有时喜欢带着我的小狗去散步。 occasional adj. 偶尔的,偶然的,非定时的 Her kindness and generosity cancel out her occasional flashes of temper. 她为人厚道、慷慨大方,倒也弥补了她偶尔发点 | 
