ADJECTIVE | VERB + ALERT | ALERT + VERB | PREPOSITION | PHRASESADJECTIVE➤heightened, high高度戒備狀態◇The country has put its troops on high alert.該國部隊處於高度戒備狀態。➤full全面戒備狀態➤amber, orange, red, yellow黃色戒備等級;橙色戒備等級;紅色戒備等級◇His sudden disappearance triggered a red alert among his friends.他的突然失踪讓朋友們都緊張起來。➤nationwide全國範圍的緊急戒備狀態▸➤bomb, fire, flood, pollution, security, terror轟炸/火災/洪水/污染/安全/恐怖警報◇A security alert was issued after four men escaped from the prison.4 名罪犯越獄後,當局發出安全警報。➤email電子郵件警報◇Receive regular email alerts about breaking news.定時接收有關爆炸式新聞的電子郵件提醒。VERB + ALERT➤issue, put out, raise, sound發出警報;拉響警報◇They rang the bells to sound the alert.他們敲響了鐘,發出警報。➤spark, trigger觸發/引發警報▸➤call off解除警報◇The alert was called off when it was found that the bomb was not live.發現炸彈未裝炸藥時,警報就解除了。ALERT + VERB➤go out警報發佈◇A nationwide alert went out for three escaped prisoners.全國範圍內發佈了警報,搜捕 3 名越獄逃犯。PREPOSITION➤on the alert戒備着;防備着▸➤alert for密切注意⋯◇You should always be on the alert for anyone who looks suspicious.你們應該時刻密切注意形跡可疑的人。PHRASES➤be on full alert處於全面警戒狀態◇The security forces are now on full alert.安全部隊現在處於全面警戒狀態。➤place sb on alert, put sb on alert使某人處於戒備狀態◇Thousands of police were put on full alert at all main roads leading to the city.在通向該城市的所有主要道路上有特派的數千警察全面戒備。➤keep sb on alert使某人保持戒備狀態➤a state of alert戒備狀態◇The army was yesterday placed on a state of alert in case of more riots.軍隊昨天處於戒備狀態以防出現更多的暴亂。alert
adjective
VERBS | ADVERB | PREPOSITIONVERBS➤be, look, seem警覺;看上去很警覺;好像很警惕▸➤become變得警覺▸➤remain, stay保持警覺▸➤keep sb使某人保持警覺◇The machine should help to keep the pilot alert.機器會幫助飛行員保持警覺。ADVERB➤extremely, fairly, very, etc.極其/相當/非常警惕▸➤fully完全警覺▸➤immediately, instantly, suddenly立刻/立即/突然警覺起來◇There was a noise outside and he was suddenly alert.外面有聲響,他突然警覺起來。➤always, constantly總是很警覺;始終保持警惕▸➤mentally機警◇He was as mentally alert as a man half his age.他像年齡小他一半的人一樣機警。PREPOSITION➤to對⋯保持警惕◇Climbers need to be alert to possible dangers.登山者需要對可能存在的危險保持警惕。
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