alert

alertalertD.J.:[əˈlə:t]K.K.:[əˈlɚt]adj.1.■警惕的, 警觉的, 注意的He is a man alert in problem.他是个留意问题的人。The rabbit seems to be very alert all its life.兔子似乎一生都小心翼翼, 十分警觉。2.■机灵的, 敏捷的He has an alert mind.他很机灵。A monkey is very alert in its movements.猴子的动作很敏捷。vt.1.■使(某人)保持警觉The voice of the caller alerted her.呼唤者的声音使她警觉起来。2.■提醒(某人)注意(某事)The boss alerted him that thief might come out at night.老板要他提防夜里可能有贼。n.1.■警戒; 警报The whole navy was placed on full alert.整个海军都处于全面戒备状态。

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alert[ə'lə:t]adj.1.■[一般作表语]2.■警惕的，警觉的，警戒的；留心的，留神的，注意的3.■(思想)敏锐的，敏捷的；(行动)迅速的，(动作)灵敏的，灵活的，机灵的，活泼的n.1.■(空袭)警报；警戒2.■警报期间，警戒期间；警戒状态，戒备状态；报警信号vt.1.■使警觉；使警戒，使警惕，向…发出警报，命令警戒：The radio alerted coastal residents to prepare for the storm.无线电台向沿海居民发出警报，准备对付风暴。to alert the government to the danger of inflation使政府警惕通货膨胀的危险2.■使(部队)处于待命状态，通知(部队、船只等)待命；通知：The troops were alerted.部队处于待命状态。3.■使充分意识到；使认识到：I must alert him to the need to solve the problem.我必须使他认识到解决这问题的必要性。近义词intelligentwatchfulon (the) alert警惕着，警戒着，警觉着；提防着，防备着；密切注意着；随时准备着put (或 place) on (the) alert(军队)处于戒备状态

alertalert[əˈlə:t]adj.1.■警惕的; 警觉的, 留心的2.■活跃的, 敏捷的, 机灵的

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词性变化alert[əˈlə:t]n.1.■注意, 小心; 警戒; 警报2.■警报[戒]期间3.■【军】紧急待命4.■待命的通知No. one alert一级战备One should not run about aimlessly during an alert.空袭警报期间不可到处乱跑。alert[əˈlə:t]vt.1.■使...处于戒备2.■发空袭或暴风警报给...3.■警告...作...准备The radio alert ed the citizens to prepare for the hurricane.电台警告市民们作好预防暴风准备。

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继承用法alertlyadv.alertnessn.