1. give/lend an ear to someone 倾听某人的心声（常用以表示同情）
例句：He tried to give a sympathetic ear to the patient.
2. turn a deaf ear 不加理睬、充耳不闻
例句：He turned a deaf ear to his mother's chatter.
3. fall on deaf ears 未被理睬、未受重视
例句：My advice always seems to fall on deaf ears.
4. talk one's ear off 喋喋不休，絮叨个不停
例句：All I wanted was a chance to read my book, but my seatmate talked my ear off.
5. make a pig's ear of 把事情搞得很糟糕
例句：He made a pig's ear (out) of repairing my car.
6. have big ears 耳朵尖、消息灵通；爱打听别人的事
例句：He can't help having big ears.
7. all eyes and ears 聚精会神
例句：A detective must be all eyes and all ears.
8. all ears 洗耳恭听、全神贯注地听
例句：Go ahead with your story, I'm all ears.
9. grin from ear to ear 咧着嘴笑、笑逐颜开
例句：When he was told that he has won the first prize, he grined from ear to ear.
10. play it by ear 随机应变、见机行事
例句：In dealing with that unpredictable man, you simply can't follow a prearranged plan. You have to play it by ear.
By the time she was four, she could play songs by ear.
I haven't decided what to say when he comes; I'll play it by ear.
“Play（it）by ear”原是音乐用语，指某人不用乐谱，仅凭听过的记忆就可弹奏乐曲。由此意引申，“play（it）by ear”强调事件的“即兴”成分，没有计划、依据当时情况而行事，很有着“走着瞧，走一步说一步”的味道。
11. prick up your ears 竖起耳朵仔细听
例句：He pricked up his ears when they mentioned the salary.
be all ears 聚精会神地听,洗耳恭听
bend someone ear与某人喋喋不休
blow it out one’s ear胡说八道
chew someone’s ear off对某人喋喋不休
have an ear for music有音乐方面的天赋
fall on deaf ears和没有心思的人说话;没被理睬
good ear 辨别声音
keep one’s ear to the ground注意听
perk up one’s ear引起注意,坚起耳朵
play by ear 听过歌曲后,不看乐谱而凭记忆演奏
put a bug in someone’s ear事先给某人暗示;警告某人