hear(d)
1.hear的宾语后面的不定式没有to。例如：I often hear her sing. 但假使把hear改作被动语态，那不定式便该有to。例如：She is often heard to sing.
2.I often hear her sing跟I often hear her singing意思相仿。在有“故意听…”的意思的时候通常用不定式。例如：I should like to hear her sing. I heard her sing不论指“故意听”或“偶然听”都有“我听着她继续唱”的意思，I heard her singing有“她原来在唱，我偶然听到”的意思。
3.hear him是“听见他”，不论说听见他讲话、唱歌、读书、走路、敲门都可以。hear of him是“听说过有他那个人”，不必真正在耳朵里听到，即使在书报上看到也可以。可以说I have heard of the hero through the press（我曾经在报纸上读到这个英雄）。
4.下面两句意思不同：
- I heard her singing in her room. （我听见她在她的房间里唱歌。）
- I heard that she was singing in her room. （我听说她在她的房间里唱歌。）
5.I hear (that) he is in England和I have heard (that) he is in England里的hear和have heard都作“听说”解。
6.hear from作“接到…寄来的信”解，后面接指人或指地方的词都可以，如I hear from him every week和I have not heard from England for several months。Be sure to let me hear from you是“请你一定要让我接到你的信。”就是“请你一定要写信给我。”但在复信的开首提及接到对方的信，习惯不用hear from，如不说I have heard from you，该说I have received your letter等。
hear from...that（或how等）...不一定指“收到…的信”，如I have heard from your father that you are in Beijing和He soon heard from his sister how their parents were getting along里的heard from不一定指收到信，也可以指听人说。
7.I hear say that there will be an election soon和You have no doubt heard tell of the United Nations里的say和tell都是没有to的不定式，似乎只有say和tell可以这样用。
8.hear的宾语后面有时接过去分词。例如：I have often heard you spoken of as a model student.
9.说“听懂英语”不可说hear English，该说understand English when (it is) heard。几年前有些美国人主张造出aud表达“听懂”的意思，也主张用aural或auditory表达“被听到的”的意思：如aud English, aural English和auditory English。把aural跟auditory比较起来，aural顺口些，但有一个大缺点：它的发音跟oral一样。
