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初高中off用法总结off除了介词词性外还可以作副词、形容词、名词和动词，现将一般用法及偏僻用法总结如下：一 常见用法1. adv./prep. 休息，不工作，不上学(置于名词或动词后，可作表语)Why not take tomorrow off? 为什么明天不休息一天？She had to stay off school because she was ill.No, its my day off today. She is off today.Ive got three days off next week.How many days did you take off?I need some time off. 我需要休息一段时间。He has had ten days off school.2. adv. 离开，离去（可作表语）drive off 开车离去Suddenly they turned off (驶离)and parked in a side road（辅路，岔路）.off the main freeway 驶离主高速公路be off on a business trip somewhere 到某地出差Off we go. （不倒装）我们走吧。I must be off now.=I must leave now.3. adv./prep. 不在上面；从上移开(其后可接物)As he leaned forward, his hat fell off.Take the coat off.Keep off the grass. 切勿踩踏草坪。He has had his beard shaved off.Dont leave the toothpaste with the top off.take the top off the bottle 打开瓶盖4. adv./prep. 下车（公交车、火车、飞机等交通工具）Ill get off at the next stop.Everyone got off the train at Nanjing station.反义词：on 上车5. adv. 不工作，不运转，停止（机器，设备等，可作表语）Will someone switch the radio off?Make sure all the lights are off.The water is off.Make sure the TV is off.6. adv. 与某物相隔；距，离；外（时间/空间，可作表语）; 表可能性We could see the cliffs(悬崖峭壁) about two miles off. 两英里外的Henrys home was a long way off across the sea. 大海那一边很远的地方。Summers not far off now. 夏天已近在眼前了。A solution is still some way off. 解决办法尚需时日。With the exams now only a week off, I had to study hard.Any kind of peace agreement still seems a long way off. （表可能性）达成任何一种和平协议似乎是遥不可及的事。7. adv. /prep.减价，打折shoes with $20 off 减价20元的鞋All shirts have/are 10% off. 衬衣全部减价10%。If you buy more than ten, they knock 10% off. 打九折。They knocked $5,000 off the car.8. adv. （安排好的事情）被取消 (可作表语)同义词：cancelledThe weddings off.The race may have to be called off if the bad weather continues.9. prep. 从某处落下，离开I fell off the ladder.She fell off her chair.(off后不接of)10. prep. (时空上)离，距；附近的；离某处很近Our hotel was just off the main street.我们的宾馆离大街很近。an island off the coast of Spain 西班牙海岸附近的岛They were still 100 meters off (away from) the summit. 他们距山顶还有100米远。Scientists are still a long way off finding a cure.(比较上面作副词的用法)科学家要找到一个治疗的方法，还早着呢。We are getting right off the subject.我们完全离题了。11. prep. 不想，戒除；go off不感兴趣，不喜欢I am off alcohol for a week.Hes finally off drugs.Tobys been off his food for a few days.I used to enjoy tennis, but Ive gone off it a bit now.She seems to have gone off Mark since he has grown a beard.二 偏僻用法1. prep. 从某人那里；来源于（不正式）off ofI got it off of my brother.My brother once borrowed some money off him.2. adv. 起跑They are off. 他们起跑了。3. adj. (只作表语) 不新鲜，变质This fish has gone off.The milk smells off.Its off. 那东西坏了。4. adv. 没有，不再供应，售罄Sorry，the duck is off. 不好意思，鸭子卖光了。5. prep. 与房间，地区，道路相连接的There is a small bathroom off the main bedroom. 有一个小浴室与主卧室相连。a narrow street leading off the corner of the square 和广场一角相连的狭窄街道live off 住在附近6. adj. 失礼，不礼貌，粗鲁，不热情，冷淡（只作表语）off with sbHe was a bit off with me this morning.She walked out before the end of your lecture, which I thought was a bit off.Look, I know when someones being off with me. 有人对我无礼时我是知道的。7. prep. 不再服用（药物）The operation was a success, and shes off the morphine(吗啡).8. adj. 不能接受，难以容忍，不行Its a bit off expecting us to work on Sunday.9. adj. 没有以往好的，不如往常好的Sales figures for last year were a little off compared with those of the previous year. 和相比，去年的销售额略有下降。10. adj. 不正确的，不对的Our calculations were off.Guess again. Youre way off. 差得太远了。11. adj. 不正常的；不再状态的（只作定语）off day /weekHe must be having an off day. 今天他肯定是心情不好。12. adj. 萧条的；淡季的（只作定语）off period/seasonIn the off season, theres hardly anyone staying at he hotel.淡季的时候，宾馆里几乎没什么人住。13. n. 开始，出发；起跑They are ready for the off.She was doubtful about the interview from the off(从一开始).14. vt. 杀死某人The guy who did this ought to be offed.干这事儿的人该杀。三 off搭配1. be well/better/badly off 经济宽裕/拮据Families will be better off under the new law.They are both comfortably off.2. be better/worse off doing 做某事较好/槽We would have been better off staying at home.We cant be any worse off than we are already. 我们的状况已经槽糕的不能再糟了。3. be off for sth 有一定数量的东西How are we off for coffee?=How much coffee do we have?我们还有多少咖啡？4. off and on(on and off) 不时地，有时地；断断续续地同义短语：now and again; from time to timeIt rained on and off all day.雨断断续续地下了一整天。