1、引导时间状语的介词 in/on/at/during/till 与 until1、用 in 的时间短语有: 表示一天中的某段时间:in the morning;in the afternoon;in the evening 表示周、月份、年份:in a week;in January;in Feb;in 1992 表示季节:in summer;in spring;in autumn;in winterin+表示时间长度的短语可以表示“在某段时间之内”,这时可以与现在时、过去时或将来时连用,一般与完成某动作有关;还可译为“时间之后”,一般与将来时连用。根据时态判别 in 表示的含义in twent
2、y minutes time 20 分钟之后We will finish class in half an hour.2、用 on 的时间短语有: 表示星期:on Monday;on Friday 表示日期:on June 1st;on 23rd March(在书写日期时没有冠词,但在口语中则分别读为:on June the first;on the 23rd of March) 表示星期+日期:on Monday, June 1st 表示具体时间:on Wednesday evening;on fine afternoon;on that day3、用 at 的时间短语有: 表示确切的时间:
3、at five to twelve;at ten oclock 表示用餐时间:at lunch/dinner time;at teatime 表示其他时刻:at night;at noon;at midnight;at that time4、during 在期间,后必须跟一个名词,可以指整个一段时间,有时可以用 in 替代He has phoned four times during the last half hour.I met him sometime during the week.(不能用 in 代替) 我是在这一周的某天遇到他的。during the holiday 强调假期的从头
4、到尾He enjoyed himself during his holiday.in the holiday 强调这段时间其中某一点时间, 并不表示自始至终I was caught in an accident in the holiday.5、fromtill 指一段明确的时间:The tourist season runs from June till October.6、until prep.&coin. 直到时候,直到什么时候为止, 直到什么时候才until 主句和从句两个都用一般过去时对(最习惯的一种用法), 主句和从句任何一个用过去完成是也对I cant enter for the sports meeting until tomorrow.I had not understood the problem until he explained it.We hadnt disturbed him until he finished work.We didnt disturb him until he had finished work.We didnt disturb him until he finished work.(更习惯于这种用法)7、fromtoEveryday we have English class from 8:30 to 11:30