at-on-in等介词的使用.ppt

at/on/in at/on/in(时间) 请比较at，on 与in They arrived at 5 o’clock. They arrived on Friday. They arrived in October./ They arrived in 1968. ①at用来表示一天之内的某个时间： at 5 o’clock at 11.45 at midnight at lunchtime at sunset at 用于下列短语 at night at the weekend / at weekends at Christmas time/ at Easter(但on Christmas Day) at the moment at present. at the same time ②on用来表达星期几和几月几日，具体的时间： on Friday/ on Fridays on 12 March 1991 on Christmas Day on my birthday ③in来表达较长的时间（例如：月、季、年），时间段 in October in 1968 in the 18th century in the past in (the) winter in the 1970s In the Middle Ages in (the) future 注意疑问句通常用What time…? (通常不用at what time…?) What time are you going out this evening? 可以说： in the morning(s) in the afternoon(s) in the evening(s) I will see you in the morning. Do you work in the evenings? 但要说： on Friday morning(s) on Sunday afternoon(s) on Monday evening(s) and so on I’ll be at home on Friday morning. Do you really go out on Saturday evenings? last/next/this/every 前不用at/on/in: I will see you next Friday. (而非on next Friday) They got married last March. in +一段时间表示将来某时： The train will be leaving in a few minutes.(从现在开始的几分钟后) Jack has gone away. He’ll be back in a week.(从现在开始的一周后) She will be here in a moment.(一会) 还可以说in six months’ time, in a week’s time They are getting married in six months’ time.(或…in six months) 还可以用in表示“用…时间” I learnt to drive in four weeks. (我学驾驶用了四周时间) 用at, on或in+下列词语完句子。 用at, on或in+下列词语完句子。 * * the evening the moment 1492 Christmas Saturday morning the morning about 20 minutes present On In At 21 July 1969 the 1920s the same time Sundays the Middle Ages 11 seconds night spring next Friday On In At ×