习惯用法:at night, at noon, at this time of year.
第二,介词in,on,at表示地点时的用法区别:at强调点,on强调面,in强调在里面。 1. at指具体的地方 (1)用于指较小的地方。如: I shall wait for you at the station. (2)用于门牌号码前。如: He lives at 115 Zhongshan Road. 2. on,一般指比较具体的街道。在...上面,如 You may know that President Obama lives on Pennsylvania Avenue in Washington, D.C. 3. in指的地方最大(1)用于指较大的地方。如: He lives in Shanghai. For the best food, try the restaurants in Chinatown. (2)虽然是很小的地方,如果说话人住在那里,也可用in。