1、四年级下册 语法专题:时间表达 (时间介词 in, on, at 规则总结) 一、时间介词(at, in ,on) 的用法: 1. 时间介词 at 的用法: (1)具体的时间点或某一时刻等。如: at ten oclock, at half past six, at noon, at night, at midnight, at dawn (2)后面接表示岁数的词,如:at 6 (years old) (3) 较短暂的一段时间, 可指某个节日或被认为是一年中标志性的大事的日子。 如:at Christmas, at New Year, at the Spring Festival 2. 时间介
2、词 in 的用法: (1)在某个较长的时间(如世纪、朝代、年、月、季节以及泛指的上午、下午 或傍晚等)内。如: in+时间段:in the morning/ afternoon/ evening in+季节:in spring/ summer/ autumn/ winter in+月份:in April , in September in+年份:in 2004, in 2018 (2)在一段时间之后,常用于将来时。如:He will be back in two hours. 3. 时间介词 on 的用法: (1)具体的时日和一个特定的时间,如某日、某节日、星期几等。如: on a sunny
3、 day, on the night of March 5th,on my birthday, on Christmas Day, on Sunday, on Monday morning, On May 4th (2)准时,按时。如:on time 二、时间介词记法口诀: at 用在时刻前,亦与正午、午夜连, 黎明、终止和开端,at 与之紧接着相伴。 周月季年长时间,in 须放在其前面, 泛指一晌和傍晚,也要放在 in 后边。 on 指特定某一天,日期、星期和节日前, 某天上下和夜晚,依然要在 on 后站。 今明昨天前后天,上下这那每之前, at、in、on 都不用,此乃习惯记心间。 三、练
4、一练: 用介词 in on at 填空: _1999_ 9:45_ the evening _ Monday evening_ June_ noon _ Childrens Day_ 8 oclock_ summer _ May_ night_ May15th, 2008 单项选择: ()1.Children get gifts _ Christmas and _ their birthdays. A. on; onB. at; onC. in; inD. in; on ()2.He came back _ a rainy night. A. onB. atC. inD. with ()3.H
5、e was born _ October. A. onB. inC. atD. of ()4.The train is arriving _ five minutes. A. inB. atC. forD. on ()5.Mike does his homework _ seven _ the evening. A. on; toB. at; inC. by; ofD. at; on ()6._ a cold winter morning, I met her. A. InB. OnC. AtD. For ()7.He often goes _ school _ six thirty _ the morning. A. to; at; onB. to; in; onC. to; at; inD. at; at; in 参考答案 用介词 in on at 填空: in1999at 9:45in the evening on Monday eveningin Juneat noon on Childrens Dayat 8 oclockin summer in Mayat nighton May15th, 2008 单项选择: 15. BABAB67. BC