alert
[ə'lə:t]
adj.警觉的, 灵敏的
vt.使意识到, 警惕
n.警戒, 警报
例句与用法:
Troops are on the alert against any possible aggression.
军队戒备着可能的来犯。
The alert leopard went up to a deer quietly.
警觉的豹子静悄悄地走近一只鹿。
Although he's over eighty his mind is still remarkably alert.
他虽已年过八十,但头脑仍然十分机敏。
An alert listener will have noticed the error.
耳朵尖的人能听出这个错。
词形变化:
动词过去式: alerted | 动词过去分词: alerted | 动词现在分词: alerting | 动词第三人称单数: alerts |
a.
1. 警觉的; 警惕的; 留神的[(+to)]
She is alert to every sound and movement.
她对每一个声音和动作都很警觉。
2. 机敏的, 灵活的[(+in)]
The boy was alert in answering the stranger's questions.
男孩很机敏地回答了陌生人的问题。
n.[C]
1. 警戒, 警报
2. 警戒状态; 警戒期间
She was always on the alert for some new calamities.
她总是保持警觉以防某种新的灾难。
vt.
1. 向……报警; 使警觉; 使注意[(+to)]
The doctor alerted me to the danger of a heart attack.
医生提醒我注意心脏病发作的危险。
2. 通知(军队, 船只等)待命; 通知[(+for/about)][O2]
She's alerted me for weekend duty.
她已通知我周末值班。
短语词组:
on the alert
1. 警戒着; 随时准备着
They have put the army on the alert.
他们已使军队进入戒备状态。
alert
形容词比较级:more alert
形容词最高级:most alert
名词复数:alerts
过去式:alerted
过去分词:alerted
现在进行时:alerting
词形变化:
动词过去式: alerted | 动词过去分词: alerted | 动词现在分词: alerting | 动词第三人称单数: alerts |
同义词:
watchful | attentive | signal | warn | alarm | prepared | lively | aware | on your toes | on guard | ready | nimble | forewarn | notify | tell | prompt | inform | warning | siren | red alert | awake | vigilant | quick | alive | bright | brilliant | cautious | smart | fresh | job | circumspect | caution | clever | sharp | threaten | agile | on the job | on | the | torpid | wide awake | on one's toes | dull | slow | one's | wide | toes | intelligent | snappy | qui vive | rattling | merry | warning signal | alerting | spanking | brisk | zippy | alarum |
反义词:
unalert |
词义辨析:
同义:
a.警觉的; 机敏的
watchful
prompt
nimble
lively
ready
attentive
awake
vigilant
quick
clear-witted
wide awake
on the job
on one's toes
同义参见:
cautious
smart
caution
warn
sharp
brilliant
signal
alive
bright
threaten
clever
fresh
agile
signal
circumspect
反义:
a.警觉的; 机警的, 机敏的; 灵活的
heedless
asleep
sluggish
slow
dull
torpid
supine
languid
listless
lethargic
反义参见:
drowsy
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
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。
继承用法alertlyadv.alertnessn.
adjective
- quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant
警惕的,警觉的,机警的
an alert police officer discovered a lorry full of explosive.
一位警惕的警官发现了一辆满载炸药的卡车。
schools need to be constantly alert to this problem.
各学校应该始终保持对此问题的警惕。
■able to think clearly; intellectually active
机灵的,机敏的
she remained active and alert until well into her eighties.
她80多岁时仍然活跃机敏。
- [mass noun]the state of being watchful for possible danger
警惕,警戒
security forces were placed on alert.
安全部队处于警戒状态。
■[count noun]an announcement or signal warning of danger
警报,警示
a bomb alert.
轰炸警报。
an alert sound-ed and all the fighters took off.
警报响了,所有的战斗机随之起飞。
■[count noun]a period of vigilance in response to such a warning
警戒期
traffic was halted during the alert.
警戒期间交通被中断。
■[count noun]a signal on an electronic device that prompts the user to do something or attracts their attention
(电子设备的)提示信号
a vibrating alert is a discreet alternative to ringtones.
相对于铃声信号而言,振动提示信号是一种谨慎的替代手段。
- [with obj.]warn (someone) of a danger, threat, or problem, typically with the intention of having it avoided or dealt with
(尤指为了避免或应付危险、威胁或问题而)提醒,警告(某人)
he alerted people to the dangers of smoking.
他提醒人们注意吸烟的种种危害。
police were alerted after three men drove away without paying.
三个男人没付钱就开车走掉之后,警方开始警觉起来。
on the alert
- vigilant and prepared
警惕着
security forces are on the alert for an upsurge in violence.
安全部队防备着冲突激化。
alertly
adverb
alertness
noun
语源
- late 16th cent. (originally in military use): from French alerte, from Italian all' erta 'to the watchtower'
alert
名词 alert:
condition of heightened watchfulness or preparation for action
同义词:qui vive
a warning serves to make you more alert to danger
同义词:alerting
an automatic signal (usually a sound) warning of danger
同义词:alarm, warning signal, alarum
动词 alert:
warn or arouse to a sense of danger or call to a state of preparedness
同义词:alarm
形容词 alert:
very attentive or observant
mentally responsive
not unconscious; especially having become conscious
同义词:awake
(usually followed by `to') showing acute awareness; mentally perceptive
alert
■More than 5000 troops have been placed on (full) alert.
5000 多名部队已处于(全面)戒备状态。
■Aptitude will alert you of this and abort the upgrade.
aptitude将警告您这种情况并终止升级。
■Articles in Time's Medical Section often alert readers to unsuspected ailments.
《时代》周刊医药栏目里的文章常告诫读者对自己意想不到的疾病保持警惕。
■An alert responds to an event of a specific type.
一个警报响应一种特定的事件。
■The policemen were on the alert for an excaped convict.
一名逃脱犯令警方全面警戒。
■LUXY Red Alert!! Camo SWAT Party!!
一级红色警戒发布!
■Take a walk now and then to keep your body refreshed and alert.
不时地去散散步,会使你精神焕发,神请气爽。
■However, we must be alert to the rapid developments around us.
不过,周边地区的发展一日千里。在这样的新形势下,我们不能掉以轻心。
■But we have to be alert to the challenges which lie ahead.
不过,对於今后的种种考验,我们却不可掉以轻心。
■Two alert scientists spotted this mistake.
两个警觉的教授发现了这个错误。
■Two alert scientists spotted the mistake.
两个警觉的科学家发现了这个错误。
■Events to alert the user to invalid input.
事件来警告用户输入了无效值。
■People who survive in the markets remain alert.
从市场中生存下来的人都很警惕。
■He had been painfully alert.
他一直兢兢业业小心在意。
■They were constantly on the alert not to be taken by surprise.
他们一直处于常备不懈状态以防突然袭击。
■They did their best to keep on their guard (be on the alert).
他们尽量保持警惕。
■They have put the army on the alert.
他们已使军队进入戒备状态。
■They must be constantly on the alert for the enemy.
他们必须随时注意敌人。
■They are always on the alert for traffic signals.
他们总是很留心交通信号。
■He decided he would stay more alert from now on.
他决定从现在起要更提高警惕了。
■He is alert to possible dangers.
他对可能发生的危险有警觉。
■He honked his car horn to alert the pedestrians.
他按了按汽车喇叭以引起路上行人的警觉。
■His small audience appeared alert, interested, and puzzled.
他的人数不多的听众显得精细、困惑,很感兴趣。
■Eg. His mind is no less alert than yours.
他的思路和你的一样敏捷。
■Although he's over eighty his mind is still remarkably alert.
他虽已年过八十,但头脑仍然十分机敏。
■The believers in Ephesus were alert.
以弗所的信徒们是警醒的,
■But we must remain on the alert.
但是我们现在仍然要保持警惕。
■Nevertheless,we have to be alert to the challenges which lie ahead.
但是,我们必须居安思危。
■You aren't very alert today.
你今天反应有点迟钝。
■You must keep alert in class.
你们应该在课堂上保持活跃。
■You should be on the alert to any sudden change in the situation.
你们要对形势的突变有足够的准备。
■Be on guard! Be alert! You do not know when that time will come.
你们要谨慎,儆醒祈祷,因为你们不晓得那日期几时来到。
■Beware, be alert; for you do not know when the time is.
你们要谨慎,要有警觉,因为你们不知道那时期几时来到。
■You must be alert to your son's fever.
你儿子发热了,你一定要小心警惕。
■You should alert to your classmates to the coming sports meet.
你应该提醒你的同学要开运动会的事。
■You need to be alert, with your senses sharp.
你应集中精力,全神贯注。
■You must be alert to the coming danger.
你必须对于正在接近的危险保持警觉。
■You must be alert to the hidden danger.
你必须对隐藏的危险保持警觉。
■You must be alert to possible dangers.
你必须警惕潜在的危险。
■You feel more awake, alert, yet relaxed.
你感到更加清醒,更加警惕,但也感到更加放松。
■Do you notice the red alert?
你注意到空袭的紧急警报了吗?
■Do you know who has won Red Alert game?
你知道谁赢了这一局红警游戏吗?
■The key to the method is to be alert to new words.
使用这种方法的关键是要处处留心那些生词。
■Nagase Stay alert! They have you on radar.
保持警惕!他们雷达已经苗上你了。
■On alert, Brothers. The enemy must be nearby.
保持警戒,兄弟们,敌人定在附近。
■The immune system is alert at all times.
免疫系统总是注意。
■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。
■Passengers on buses should be on the alert against pick-pockets.
公共汽车上的乘客应提防扒手。
■Soldiers and police have been put on alert.
军队和警察已经处于戒备状态。
■Troops are on the alert against any possible aggression.
军队戒备着可能的来犯。
on the alert
1. 警戒着; 随时准备着
They have put the army on the alert.
他们已使军队进入戒备状态。
习惯用语air alert1.■空袭警报; 空中待机(飞机起飞, 在空中待命)air-raid alert1.■空袭警报be on the alert1.■注意; 提防; 警戒blue alert1.■(预备警报后的)空袭警报; 台风警报put on the alert1.■(军队)处于戒备状态red alert1.■紧急警报; 紧急戒备white alert1.■解除警报alert to do1.■留心做alert ...to the fact that1.■提醒...注意如下事实yellow alert1.■预备警报特殊用法active alert1.■战斗警报battle alert1.■战斗警报ground alert1.■地面待战[值班]; 地面待战信号[飞机]long-duration alert1.■长期待战[戒备]malfunction alert1.■故障报警器alert by radar1.■雷达警戒