hear, hear of, hear from
hear可用作及物动词,表示“听到”、“听见”,侧重于听的结果.如：
I'm very sorry to hear that.听到那件事我非常难过.
Hear后面还可以跟that从句,如：
I hear that you've been here for several years. 我听说你已经来这儿几年了.
(2) hear of是“不及物动词+介词”构成的词组,意指间接地“听到”“听说”后接名词性质的词.如：
I have never heard of him before. 我以前从来没有听说过他.
注意：hear of与hear about的意义相近,这两个词组在英语中有时可以通用.它们含有“听人说起”,“从书报上看到关于”等意义.例如：
I’ve never heard of him. 我从来没有听说过他.
Have you heard about him from anywhere?你从什么地方听到过他吗?
(3) hear from指“收到……的来信”与get or receive a letter from 同义,其宾语应是人,而不是信.如：
I often hear from my parents.我经常收到父母的来信.