alert

高中CET4CET6TOEFL考研GRE

英[??l??t]
美[??l??rt]

基本釋義

adj.
警覺(jué)的,警惕的; 意識(shí)到的
n.
警惕,戒備; 警報(bào)
v.
向…報(bào)警; 使警覺(jué),使戒備; 使認(rèn)識(shí)到

詞性變化

實(shí)用例句

Police are warning the public to be on the alert for suspicious packages.

警方警告公眾要警惕可疑包裹。

牛津詞典

More than 5 000 troops have been placed on (full) alert .

5 000多名士兵已處于(全面)戒備狀態(tài)。

牛津詞典

a bomb/fire alert

炸彈 / 火警警報(bào)

牛津詞典

They had been alerted to the possibility of further price rises.

他們已意識(shí)到價(jià)格可能繼續(xù)上漲。

牛津詞典

Neighbours quickly alerted the emergency services.

鄰居很快向緊急情況服務(wù)部門報(bào)了警。

牛津詞典

Alerted by a noise downstairs, he sat up and turned on the light.

樓下的響聲使他警覺(jué),他坐起來(lái)打開(kāi)燈。

牛津詞典

We must be alert to the possibility of danger.

我們必須認(rèn)識(shí)到危險(xiǎn)的可能性。

牛津詞典

Suddenly he found himself awake and fully alert.

突然他發(fā)覺(jué)自己醒了過(guò)來(lái),而且高度警覺(jué)。

牛津詞典

Two alert scientists spotted the mistake.

兩個(gè)警覺(jué)的科學(xué)家發(fā)現(xiàn)了這個(gè)錯(cuò)誤。

牛津詞典

I was hoping he'd alert the police.

我當(dāng)時(shí)希望他會(huì)報(bào)警。

Soldiers and police have been put on alert.

士兵和警方都已進(jìn)入警戒狀態(tài)。

They want to be on the alert for similar buying opportunities.

他們希望隨時(shí)掌握有關(guān)類似購(gòu)買機(jī)會(huì)的信息。

He wanted to alert people to the activities of the group...

他想提醒人們小心該團(tuán)體的活動(dòng)。

Due to a security alert, this train will not be stopping at Oxford Circus.

由于安全戒備的原因,該次列車在“牛津街口廣場(chǎng)”站將不停留。

The bank is alert to the danger.

銀行充分意識(shí)到了危險(xiǎn)。

We all have to stay alert...

我們大家都必須保持警惕。

He had been spotted by an alert neighbour.

一個(gè)警覺(jué)的鄰居發(fā)現(xiàn)了他。

What ever you choose to bring on your travels is of course an individual matter.

選擇在旅途中帶上什么東西,當(dāng)然是您的個(gè)人問(wèn)題.

期刊摘選

He is a man alert in problem.

他是個(gè)留意問(wèn)題的人.

《簡(jiǎn)明英漢詞典》

Alert readers may have noticed the misprint in last week's column.

細(xì)心的讀者可能已經(jīng)注意到上周專欄中的印刷錯(cuò)誤了.

《簡(jiǎn)明英漢詞典》

One should not run about aimlessly during an alert.

空襲警報(bào)期間不可到處亂跑.

《現(xiàn)代英漢綜合大詞典》

A monkey is very alert in its movements.

猴子的動(dòng)作很敏捷.

《簡(jiǎn)明英漢詞典》

A sparrow is very alert in its movements.

麻雀行動(dòng)非常機(jī)靈.

《簡(jiǎn)明英漢詞典》

They were constantly on the alert not to be taken by surprise.

他們一直處于常備不懈狀態(tài)以防突然襲擊.

《現(xiàn)代漢英綜合大詞典》

The district was put on red alert during a terrorist's bomb scare.

這個(gè)地區(qū)在得到恐怖分子炸彈恐嚇后作了應(yīng)急準(zhǔn)備.

《簡(jiǎn)明英漢詞典》

The Armies were constantly on the alert not to be taken by surprise.

部隊(duì)一直處于警戒狀態(tài)以防突然襲擊.

《現(xiàn)代漢英綜合大詞典》

In our reading we should always be alert for idiomatic expressions.

我們?cè)陂喿x過(guò)程中應(yīng)經(jīng)常注意慣用法.

《簡(jiǎn)明英漢詞典》

Hearing this, I was instantly on the alert.

我一聽(tīng)這話, 當(dāng)下就警惕起來(lái).

《現(xiàn)代漢英綜合大詞典》

真題例句

When the system thinks it's being jammed, it'll notify you via -94- push alert .

出自-2016年12月閱讀原文

That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? With the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?Jamming concerns are nothing new, and they're not unique to security systems.

出自-2016年12月閱讀原文

It caught us in the act, sent an alert to my smartphone, and also listed our RF interference on the system's event log.

出自-2016年12月閱讀原文

If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.

出自-2016年12月閱讀原文

More sleep in old age, however, is associated with better health, and most older people would feel better and more alert if they slept for longer periods, he said.

出自-2011年6月閱讀原文

She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators.

2017年12月四級(jí)真題(第一套)閱讀 Section C

She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones.

2017年12月四級(jí)真題(第一套)閱讀 Section C

When the system thinks it's being jammed, it'll notify you via push alert.

2016年12月四級(jí)真題(第一套)閱讀 Section B

with the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?

2016年12月四級(jí)真題(第一套)閱讀 Section B

To alert American workers to the urgency for adaptation.

出自-2016年6月閱讀原文

Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.

出自-2016年12月閱讀原文

To be alert to fluctuations in foreign markets.

出自-2011年12月閱讀原文

And when that is failed, they stop the hunters, banging on pots and pans to alert the deer.

出自-2013年12月聽(tīng)力原文

Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

2017年6月六級(jí)真題(第三套)閱讀 Section A

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 against any potential danger.

2017年6月六級(jí)真題(第三套)閱讀 Section A

Consumers passionate about a product may create “owned” media by sending e-mail alerts about products and sales to customers registered with its Web site.

出自-2011年考研閱讀原文

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

2019年考研真題(英語(yǔ)二)閱讀理解 Section Ⅱ

The heightened alert followed an emergency meeting with flu experts in Geneva that assembled after a sharp rise in cases in Australia, and rising numbers in Britain, Japan, Chile and elsewhere.

2010年考研真題(英語(yǔ)二)完形填空 Section Ⅰ

英英釋義

Noun
  • 1. condition of heightened watchfulness or preparation for action;

    "bombers were put on alert during the crisis"

  • 2. a warning serves to make you more alert to danger

  • 3. an automatic signal (usually a sound) warning of danger

Verb
  • 1. warn or arouse to a sense of danger or call to a state of preparedness;

    "The empty house alarmed him"

    "We alerted the new neighbors to the high rate of burglaries"

Adjective
  • 1. very attentive or observant;

    "an alert and responsive baby is a joy"

    "caught by a couple of alert cops"

    "alert enough to spot the opportunity when it came"

    "constantly alert and vigilant, like a sentinel on duty"

  • 2. mentally responsive;

    "an alert mind"

  • 3. not unconscious; especially having become conscious;

    "the patient is now awake and alert"

  • 4. (usually followed by `to') showing acute awareness; mentally perceptive;

    "alert to the problems"

    "alive to what is going on"

    "awake to the dangers of her situation"

    "was now awake to the reality of his predicament"

同義詞

反義詞

adj.警覺(jué)的;機(jī)警的,機(jī)敏的;靈活的

torpidasleeplanguidsupineheedlesslistlesssluggishlethargicslowdull

其他釋義

drowsy

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