精选优质文档-倾情为你奉上英语四下知识点复习1. 介词at, in, on的用法at 表示在“某时刻或某个时间点”,如at one oclock at three fifteenin 表示在“某段时间内”,如在早晨in the morning ,在下午in the afternoon 在晚上in the evening,但是在夜里at night一年四季用介词 in 如:in spring, in summeron 表示“具体某一天、某天上午、下午或者晚上”, 记住星期前面都用 on如on Sunday, on my birthday, on Monday evening2. some一般用于肯定句和征求别人意见的疑问句中,如:(1)I can see some cakes on the table. (2)Can I have some cakes? (3)Would you like some cakes? any 一般用于疑问句和否定句中,如:(1)Do you have any cakes?