答：hear的过去式和过去分词是 heard。
hear的动词意思是：听到，听见；第三人称单数是 hears； 现在分词 hearing ；过去式和过去分词是 heard
它的例句有：You can hear commentary on the game at halftime.
你可在中场休息时听到对比赛的评论。
I don't think you've ever heard Doris talking about her emotional life before.
我想你以前从未听过多丽丝谈论自己的感情生活。
短语有：hear from 收到…的信；hear about 听说；hear of 听说过；sorry to hear that 听到…消息很难受/难过；pleasant to hear 好听；
同义词有：sound , learn of 听到，听；听说；审理；ear , hark 听见
hearing 听力；hearer 听者；旁听人
词汇辨析：overhear, hear, listen这组词都有“听”的意思，其区别是：
overhear 指偶然听到，无意中听到，也指偷听。
例句有：They were shut away in a little room where nobody could overhear.
他们躲在一个小屋子里，没有人能偷听得到。
Perhaps the neighbours just happened to "overhear" the cry.
也许邻居们只是碰巧“听到”了那声喊叫。
hear 及物动词，指声音进入耳内，但不含有注意的意味，即只要听觉正常，声音进
入耳内，就能听见。但在祈使句中，hear可指有意识的行为。
例句有：He doesn't hear very well.他听觉不是很好。
Drop us a line, it's always great to hear from you.
给我们写封信，能收到你的信总是让人很高兴。
listen 及物动词，指有意识地倾听，强调行为的过程。
Why couldn't he listen to her? 为什么他不能听她的话？
Now, listen to what she's saying. 嗨，听听她在讲什么。
