warning ♦︎ notice ♦︎ alarm ♦︎ alert ♦︎ tip-off ♦︎ cautionThese are all words for a statement that tells sb that sth bad may happen.这些词均表示警告、警示。PATTERNS AND COLLOCATIONS 句型和搭配◆warning / notice of sth◆warning / notice that...◆without warning / notice◆adequate / advance / ample / prior / written warning / notice◆a flood / bomb / health warning / alert◆to give / receive warning / notice / a tip-off◆to sound a warning / an alarm / an alert / a note of caution■warning [countable, uncountable] a statement or event that tells sb that sth bad or unpleasant may happen in the future so that they can try to avoid it(就可能发生的意外等提出的)警告,警示,先兆◆Doctors issued a warning against eating any fish caught in the river.医生发出警告,不要吃在那条河里捕的鱼。◆All tobacco products are required to carry a government health warning.所有的烟草产品上都必须要标示政府的健康忠告。◆Let me give you a word of warning.我来提醒你一句。◆The bridge collapsed without any warning.那座桥在没有任何先兆的情况下坍塌了。■notice [uncountable] information or a warning given in advance of sth that is going to happen, often as part of a plan; a formal letter saying that you will or must leave your job or house预告;通知;辞职信;解雇信;搬迁通知◆You must give one month's notice of your intention to move out of the property.如打算搬家,必须提前一个月通知。◆Prices may be altered without notice.如有价格改变,恕不另行通知。◆The bar is closed until further notice(= until you are told that it is open again).酒吧关门停业,直至另行通知。◆He has handed in his notice(= his letter resigning from his job).他已递交了辞呈。■alarm [countable, usually singular] a loud noise or a signal that warns people of danger or a problem警报◆I hammered on all the doors to raise the alarm.我擂响所有的门让大家警觉起来。 see also alarm ⇨ alarm■alert əˈlɜːt; NAmEəˈlɜːrt [countable] an official warning to people to be prepared to deal with sth dangerous or difficult(官方发出的)警报◆A flood alert has been issued in the city after last night's heavy rain.昨夜暴雨过后,这个城市发出了洪水预警。◆a bomb alert炸弹警报 see also alert ⇨ watchnoun■ˈtip-off [countable] (informal) secret information that sb gives, for example to the police, to warn them about an illegal activity that is going to happen举报;密报◆The man was arrested after an anonymous tip-off.有人匿名举报后,那个人被抓了起来。■cautionˈkɔːʃn [uncountable, countable] (formal) a warning or a piece of advice about a possible danger or risk(对危险或风险的)警告,告诫◆Some companies have sounded a note of caution about the outlook for the second half of this year.一些公司已经对今年下半年的前景发出了预警。◆Some cautions must be kept in mind when interpreting these results.解读这些结果时,必须谨记一些忠告。