1、on+身体部位1、on holidayon holiday在度假，此时holiday 前不加冠词。类似说法如：on a visit/a trip/a journey 要带冠词。take a holiday 休假用介词on 表示处于一种状态，若用for 则表示目的。如： He is on holiday. 他在度假。He is on a visit to America. 他正在美国访问。He wnet to the countryside for his holidays. 他去乡村度假。He went to America for a visit. 他去美国进行一次访问。比较：holiday
2、, vacation, leaveholiday与vacation一般可通用，但vacation侧重于长时间的假期，如: summer vacation, holiday 可长可短。leave 指政府工作人员或士兵的假期，也可用于指因事（病）而请的假。如: ask for leave 请假，a sick leave of three days 三天的病假2、on ones way to 正在到，动身往，在往的路上He was on his way to school when suddenly a policeman stopped him.他正在上学的路上就在这时一个警察截住了他。They
3、telephoned to say that they were on the way, but they might be late.他们打电话说他们正在路上，但他们可能来晚。I called on a friend of mine on my way back.我在回来的路上拜访了我的一个朋友。You mustnt forget to call in at Browns on the way home.你千万别忘了在回家的路上到布朗先生家拜访。拓展：by the way 顺便说；in the way 挡道；in a way 某种意义上；lose ones way 迷路； no way 决不
4、；by way of 途经，经由；work ones way 通过苦干；make ones way 前进；all the way to 一路至。3、on+身体部位lay the person on ones back 让这个人仰卧着；stand on one foot 一条脚站着； lie on ones back/stomach/side 仰卧/趴着/侧着身躺着；sleep on ones side 侧身睡；stand on ones head 倒立。完成句子 她趴在床上，哭个不停。She _ _ _ _in the bed,crying all the while你想倒立几个小时是很不容易的。Its difficult for you to _ _ _ _ for several hours.Key:lay, on, her, stomach stand,on, your,head
