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词典释义:
alert
时间: 2023-07-08 02:46:08
高中四级六级考研托福GRE
英 [əˈlɜːt]
美 [əˈlɜːrt]

adj. 警惕的;警觉的;机警的;机敏的;机灵的

n. 警惕;警戒;警报;警示;警戒期;提示信号

v. 提醒;警告

短语搭配
双语例句
  • On hearing the fire alert, people poured out of the building.

    一听到火警警报,人们就纷纷涌出大楼。

  • The policeman alerted the gangster to put down his gun at once.

    警察警告这个匪徒立即放下枪。

  • She became alert when she found someone following behind her.

    当她发现有人跟随她时,她变得警觉起来。

  • But her prey are always on high alert.

    但她的猎物时刻保持高度机警

  • The police are still on high alert as the suspect continues to elude them.

    嫌疑人仍然在逃,警察一直处于高度戒备状态。

  • The bank is alert to the danger.

    该银行对这种危险有警觉。

  • Her whole bearing was alert.

    她整个人保持着戒备状态。

  • We all have to stay alert.

    我们都必须保持警觉。

  • Two alert scientists spotted the mistake.

    两个警觉的科学家发现了这个错误。

  • The security alert brought the airport to a standstill.

    安全警戒使机场陷入停顿状态。

近义词
vt.
反义词
同根词

词根 alert

百科

alert是HTML DOM 中用到的一种脚本语言,它的中文意思是“提醒”。它是JavaScript或VBscript脚本语言中窗口window对象的一个常用方法;其主要用法就是在你自己定义了一定的函数以后,通过执行相应的操作,所弹出对话框的语言。并且alert对话框通常用于一些对用户的提示信息。

alert,英语单词,名词、动词、形容词,作名词时意为“警戒,警惕;警报;警戒期;(电子设备的)提示信号;(Alert)(美、德、俄、西、印)阿莱尔特(人名)”,作动词时意为“ 使警觉,警告;使意识到”,作形容词时意为“警惕的,警觉的;机警的,机敏的;充分意识到的”。

释义
adj.

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.

    各学校对此问题应该始终保持警惕。

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。

n.

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 sounded 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。

v.

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。

短语
  • on the alert vigilant and prepared 处于戒备状态 security forces are on the alert for an upsurge in violence. 安全部队处于戒备状态,以防暴力升级

易错必背词
  • stay alert 保持警惕

    真题例句:

    • Being sharp doesn't mean we have to stay alert all the time.

      敏锐并不意味着我们必须时刻保持警惕。

      [福建 2022 七选五]
  • alert eyes 警觉的眼睛

    真题例句:

    • Sitting on the doorstep was a kitten with an exotic black coat and alert amber eyes.

      坐在门阶上的是一只小猫,它有着奇异的黑色皮毛和警觉的琥珀色眼睛。

      [上海 2022 阅读理解]
  • be alert to/for ... 对...警觉;对...留意

    真题例句:

    • Individuals aren't alert enough to the underinvestment in flu prevention.

      个人对流感预防投资不足没有足够的警觉。

      [北京 2022 阅读理解]
    • I continued on my way, alert for any sound.

      我继续赶路,留意着任何声音。

      [广东 2022 完形填空]
  • alert sb to sth 提醒某人注意某事

    真题例句:

    • Because large quantities of rubbish have been thrown there, we should alert the public to the danger of it.

      因为大量的垃圾被扔在那里,我们应该提醒公众注意垃圾的危险性。

      [黑龙江 2022 单选]
  • on high/red alert 处于高度/红色戒备状态

    真题例句:

    • In a safe environment today, however, it would be wasteful to be on high alert constantly.

      然而,在今天的安全环境中,持续保持高度警惕是一种浪费。

      [上海 2022 概要写作]
    • You are on red alert.

      你处于红色警戒状态。

      [上海 2022 语法填空]
词源

"late 16th cent. (originally in military use): from French alerte, from Italian all' erta ‘to the watchtower’."

考纲分布

12年出现 0

重要程度
  • 0%

    adj 警觉的

  • 0%

    vt 向…报警; 使意识到

  • 0%

    n 警报

考纲释义
  • adj. 警觉的

    英文释义:

    真题例句:

  • vt. 向…报警; 使意识到

    英文释义:

    真题例句:

  • n. 警报

    英文释义:

    真题例句:

考纲分布

9年出现 18

重要程度
  • 56%

    adj/un/v 警戒(的); 使警戒

  • 22%

    v/adj (使)意识到

  • 11%

    n 警报

  • 6%

    n 警戒期

  • 6%

    adj/n 机灵的; 灵敏的

考纲释义
  • adj/un/v. 警戒(的); 使警戒

    英文释义:

    quick to notice any unusual and potentially dangerous or difficult circumstances; \na situation in which people are watching for danger and ready to deal with it; \nwarn someone about a dangerous or urgent situation

    真题例句:

    • The research team say they believe the "alert-but-passive" nature of television watching may be creating stress on the mind which contributes to memory decline.

      该研究小组表示,看电视“警觉但被动”的本质可能会给大脑造成压力,从而导致记忆力下降。

      [2020年 CET4 听力]
  • v/adj. (使)意识到

    英文释义:

    make someone aware of something; \naware of something; especially a problem or danger

    真题例句:

    • We need to be alert to the possible harm of violent games that could be done to children.

      我们需要警惕暴力游戏可能对儿童造成的伤害。

      [2021年 CET4 写作]
  • n. 警报

    英文释义:

    a warning of danger or of a problem

    真题例句:

    • Evacuate the area with the orange alert.

      用橙色警报撤离该地区。

      [2020年 CET4 听力]
    • The transport minister advised people in parts of Scotland covered by the orange alert to avoid travel on Wednesday.

      交通部长建议出现橙色警报的苏格兰部分地区的居民周三避免出行。

      [2020年 CET4 听力]
  • n. 警戒期

    英文释义:

    the period during which an alert is in effect

    真题例句:

  • adj/n. 机灵的; 灵敏的

    英文释义:

    able to think clearly; intellectually active

    真题例句:

必考短语
考纲分布

9年出现 13

重要程度
  • 85%

    v/adj 提醒注意; 使意识到; 意识到

  • 8%

    adj/un/v 警戒的; 警戒状态; 使警戒

  • 8%

    cn 警报

  • 0%

    adj/n 机灵的; 灵敏的

考纲释义
  • v/adj. 提醒注意; 使意识到; 意识到

    英文释义:

    make someone aware of something; \naware of something, especially a problem or danger

    真题例句:

    • In 2016 the Air Force had to issue 3,995,874 warnings to satellite owners alerting them to a potential nearby threat from another satellite.

      空军在2016年不得不向卫星拥有者发出3,995,874条警告,提醒他们附近另一颗卫星的潜在威胁。

      [2019年 CET6 阅读理解]
    • For example, fear can alert us to possible danger.

      例如,恐惧可以提醒我们可能的危险。

      [2016年 CET6 听力]
    • Their behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.

      他们的行为——酗酒、使用非法药物、吸烟和逃学——可以提醒家长和老师,严重的问题正在酝酿之中。

      [2016年 CET6 阅读理解]
    • To alert American workers to the urgency for adaptation.

      提醒美国工人适应的紧迫性。

      [2016年 CET6 阅读理解]
  • adj/un/v. 警戒的; 警戒状态; 使警戒

    英文释义:

    quick to notice any unusual and potentially dangerous or difficult circumstances; \na situation in which people are watching for danger and ready to deal with it; \nwarn someone about a dangerous or urgent situation

    真题例句:

    • In 2016 the Air Force had to issue 3,995,874 warnings to satellite owners alerting them to a potential nearby threat.

      2016年,空军不得不向卫星所有者发出3995874次警告,提醒他们附近存在潜在威胁。

      [2019年 CET6 阅读理解]
    • Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

      一项研究显示,当你在一个新的地方睡觉时,你的一半大脑保持警觉,为危险做好准备。

      [2017年 CET6 阅读理解]
    • The researchers explained that the study demonstrated when we are in a novel environment the brain partly remains alert so that humans can defend themselves.

      研究人员解释说,这项研究表明,当我们处于一个新的环境中时,大脑部分保持警惕,以便人类能够保护自己。

      [2017年 CET6 阅读理解]
  • cn. 警报

    英文释义:

    a warning of danger or of a problem

    真题例句:

    • Paris prosecutor Remy Heitz said that an initial fire alert was sounded at 6:20 pm on Monday evening but no fire was found.

      巴黎检察官Remy Heitz表示,周一晚上6点20分发出了最初的火灾警报,但没有发现火灾。

      [2021年 CET6 阅读理解]
    • The second alert was sounded at 6:43 pm, and the blaze was discovered on the roof.

      第二次警报于下午6:43响起,在屋顶上发现了大火。

      [2021年 CET6 阅读理解]
  • adj/n. 机灵的; 灵敏的

    英文释义:

    able to think clearly; intellectually active

    真题例句:

必考派生词
考纲分布

16年出现 4

重要程度
  • 75%

    adj 机警的; 警惕的

  • 25%

    v 使警觉; 提醒

  • 0%

    n 警报

考纲释义
  • adj. 机警的; 警惕的

    英文释义:

    quick to see, understand, and act in a particular situation

    真题例句:

    • Stay alert to serious symptoms, such as chest pain, severe shortness of breath or dizziness, or faintness, and seek medical attention immediately.

      对严重症状保持警惕,如胸痛、严重气短、头晕或昏厥,并立即就医。

      [2022年 英语二 阅读理解B]
  • v. 使警觉; 提醒

    英文释义:

    make someone aware of something; \naware of something, especially a problem or danger

    真题例句:

    • Jealousy and anger, for example, may have evolved to alert us to important inequalities.

      例如,嫉妒和愤怒可能是为了提醒我们注意重要的不平等现象而进化的。

      [2019年 英语二 阅读理解A]
  • n. 警报

    英文释义:

    a warning to people to be prepared to deal with something dangerous

    真题例句:

必考短语
用法讲解
  • alert常用作表语,后接介词in或to,表示“对...保持警惕”。例: Schools need to be constantly alert to this problem. 各学校对此问题应该始终保持警惕。

  • alert是及物动词,常接名词或代词作宾语;alert也接双宾语,其直接宾语多为that引导的从句。alert还可接以动词不定式充当补足语的复合宾语。例: We will alert operating personnel to repair. 我们将通知操作人员去维修。

  • Quarter alert! Quarter alert!

    投币了! 投币了!

    《Wreck-It Ralph》《无敌破坏王》

  • FBI was on high alert. They investigated every threat. Calm down.

    联调局之前高度戒备,他们调查每个威胁,冷静。

    《House of Cards Season 5》《纸牌屋 第五季》

  • My fear of him keeps me alert. Tending to his needs gives my life purpose.

    对他的恐惧让我时刻保持警惕,要满足他的各种需要,也让我有点事做。

    《Life of Pi》《少年派的奇幻漂流》

  • All very interesting, Sherlock, but the terror alert has been raised to critical.

    都很有意思,夏洛克,但恐怖袭击预警等级已达到"危急"。

    《Sherlock Season 3》《神探夏洛克 第三季》

  • We have an unsanctioned departure from bay two. Alert General Hux. And stop that fighter.

    第二停机场有一架战机未经许可起飞。通知赫克斯将军 并阻止那艘战机。

    《Star Wars: The Force Awakens》《星球大战7:原力觉醒》

  • Wow. Okay, dude, alert. And who is this guy? Mike Gandolf Ganderson, only like the funnest guy in the world.

    好吧,兄弟,请注意,这个人是谁?麦克甘道夫,世界上最爆笑的人。

    《Friends Season 4》《老友记 第四季》

  • Civilians. Hundreds of them. We can save their lives. I'll phone Denniston's office so that he can alert the Admiralty.

    人们。成百上千的民众,我们可以拯救他们。我要打电话到丹尼斯顿的办公室,他可以告诉海军部。

    《The Imitation Game》《模仿游戏》

  • Is it possible your blood sugar was low? I was rested, alert and completely aware of my surroundings.

    你的血糖有可能偏低吗?我精神饱满,思维敏锐,对周围环境了如指掌。

    《Sully》《萨利机长》

  • They have another 10 months on their trip home. Space travel is dangerous, they need to be alert and undistracted.

    他们还有10个月的航程回家,太空旅行很危险,他们需要警觉且不能分心。

    《The Martian》《火星救援》

  • So, let's go learn how hydroelectric power might not be the environmental bargain you think it is. Sorry. Spoiler alert.

    所以,我们就去看看水力发电,也许不是你想的那么环保。抱歉,剧透了。

    《The Big Bang Theory Season 5》《生活大爆炸 第五季》

  • As you can tell, I am alert, extroverted, affable and articulate. Of course. And not to mention devilishly handsome. Not to mention?

    你也能看出,我机敏,外向,亲切,思维清晰,当然了,更不用提如此帅气逼人。真的不是故意提到嘛?

    《Like Sunday, Like Rain》《如晴天,似雨天》

  • If people buy what you're saying, they will buy what you're selling. Max, stay alert. This could go to cult like that.

    如果人们愿意对你说的话买账,他们也会对你推销的东西买账。麦克斯,提高警戒,一不小心这就变邪教了。

    《2 Broke Girls Season 4》《破产姐妹 第四季》

  • Oh, good! Okay, yes, I'm gonna do that. I'm calling him. If it helps, I can alert my magician contacts in Vegas.

    好,我这就找他,我打给他。要是有用,我可以找我在赌城的魔术师朋友。

    《Modern Family Season 6 》《摩登家庭 第六季》

  • Sensor alert. Front door. Please state your name. Colonel Hyrum Graff, Director of Training, International Fleet. This is my colleague, Major Anderson. May We?

    传感器报警,前门,请告知您的姓名。希伦·格拉夫上校,国际舰队训练部主管,这是我的同事安德森少校,我们能进来吗?

    《Enders Game》《安德的游戏》

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