单词：alert
n. 警报
vt. 使警觉, 通知, 使意识到
n. a warning serves to make you more alert to danger
a. engaged in or accustomed to close observation
s. quick and energetic
考试类型：[四级/六级/考研/托福/GRE]
alert的用法和样例：
例句
- 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。
- 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。
- But we must remain on the alert.但是我们现在仍然要保持警惕。
- He decided he would stay more alert from now on.他决定从现在起要更提高警惕了。
- Troops are on the alert against any possible aggression.军队戒备着可能的来犯。
- One should not run about aimlessly during an alert.空袭警报期间不可到处乱跑。
常见句型
- He has an alert mind.他很机灵。
- The alert listener will have noticed the error.耳朵尖的人能听出这个错。
- He is a man alert in problem.他是个留意问题的人。
- Our guerrillas suddenly became alert as the dogs barked.狗叫了,我们的游击队员突然警觉起来。
- 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。
- Be alert for any sign of change in the patient.对这个病人的病情变化要密切注意。
- The student is alert in answering the question.这个学生回答问题小心谨慎。
- A monkey is very alert in its movements.猴子的动作很敏捷。
- He is always alert to danger.他对危险时刻保持警惕。
- She was alert to seizing an opportunity.她机敏地抓住一个机遇。
- So alert she was that not a single error in the report slipped her.她十分警觉,所以报告中没有一个错能逃过她的眼睛。
- The voice of the caller alerted her.呼唤者的声音使她警觉起来。
- Sirens alerted the cities long before the enemy bombers arrived.敌军轰炸机凌空以前,各城市早已鸣了警报。
- They alert the public to the need for pollution control.他们提醒公众注意控制污染的必要性。
- He had phoned the nearby villages, alerting them to the possibility of forest fires.他给附近几个村庄打了电话,叫人们注意森林可能起火。 1
- The guard was alerted by a man climbing towards him.有一个人向卫兵爬过来,使卫兵警惕起来。
- The boss alerted the guard that thief might come out at night.老板要警卫提防夜里可能有贼。
- The villagers alerted the traveller that wolves might come out in the night.村民们叫旅行者提防,夜晚有狼群出没。
- The radio alerted coastal residents to prepare for the hurricane.电台警告沿海居民做好预防飓风的准备。
- We will alert operating personnel to repair.我们将通知操作人员去维修。
- There are hurricane warning systems for alerting island residents.现在有了向岛上居民发出飓风警报的警报系统。
- A national police alert was in effect.全国警察实行戒备。
- The hurricane alert is over.飓风警报解除了。
- The air-raid alert sounded at noon.正午时响起了空袭警报。
- We'd just boarded the bus when the alert sounded.我们刚登上公共汽车，警报就响了。
- If there is an alert, don't panic, just make your way to the exit.如果有警报，不要惊慌，只要走向太平门就行了。
- The machine sounded the alert.机器发出了警报。
- They received the alert at midnight.他们在午夜接到警报。
- It's the alert signal.这是警报信号。
- They were quiet during the alert.警戒期间他们很安静。
- We should not run about aimlessly during an alert.警戒期间不可到处乱跑。
- The whole country is in a state of alert.全国正处于戒备状态。
- Security forces are on a high state of alert because of the President's visit.由于总统来访，保安部门处于高度警戒状态。
- Sirens brought the whole street to the alert .警报声使整条街道进入戒备状态。
常用短语
- 警戒着，防备着 ready to take action to deal with a dangerous situation
- 密切注意着，随时准备着paying attention to what is happening and ready to react quickly if necessary
词汇搭配
- alert mind反应敏捷的头脑
- alert movements敏捷的动作
- alert mentally思想上警惕
- alert in answering questions留心回答问题
- alert to随时注意
- alert to every sound and movement对任何响动都很警觉
- alert the public提醒公众
- alert amazingly吃惊地警告
- alert cautiously小心地警告
- alert extremely完全地警告
- alert guardedly谨慎地警告
- alert resolutely绝对地警告
- alert sharply尖锐地警告
- alert wisely聪明地警告
- alert to the danger提醒注意其危险性
- alert to the need提醒注意其必要性
- call an alert发出警报
- sound the alert拉响警报
- call off an alert取消警戒状态
- go on alert进入戒备
- 24-hour alert昼夜警戒
- active alert战斗警报
- blue alert空袭警报
- false alert假警报
- full alert全面戒备状态
- general alert全面警戒
- No 1 alert一级战备
- preliminary alert预备警报
- red alert紧急警报
- white alert解除警报
- yellow alert预备警报
- air alert空袭警报
- ground alert地面待战
- malfunction alert故障报警
- nuclear alert核警报
- during an alert在警戒期间
- in state of alert处于警戒状态
- the alert against any possible aggression警惕任何可能的侵略
- the alert for any indications of battle注意任何战事的迹象
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