短语
warn sb. of sth. 警告 / 提醒某人某事
warn sb. about / against sb. / sth. 让某人警惕或提防某人 / 某事
warn sb. off sth. 通知某人离开或不要接触
warn sb. not to do sth. 建议或劝告某人不要做某事
②warn v.
辨析
advise / caution / warn
这些动词均有“劝告、忠告、警告”之意。
advise普通用词,泛指劝告,不涉及对方是否听从劝告。
My English teacher advised me to listen more, read more and speak more.
caution主要指针对有潜在危险而提出的警告,含小心从事的意思。
I must caution you against the danger.
②warn v.
warn含义与caution相同,但语气较重,尤指重后果。
I warned them that there might be snakes in the woods.
②warn v.
②warn v.
完成句子
(1) The police are warning the motorists __________ possible delays.
(2) The doctor warned us __________ overtiring the patient.
(3) Some animals mark their territory to warn __________ rivals.
(1) of (2) against (3) off
③guarantee v. & n
根据语境猜词义
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