相信有不少初学英语的朋友都会对ed发音有点疑惑，为什么同样的ed，会有
/d/,/t/,/id/三种发音呢？那么它们的发音规则是什么呢？接下来我们一起来揭晓ed发音的秘密。
清辅音和浊辅音
发音时声带不震动、送气的叫清辅音；发音时声带震动、不送气的叫浊辅音。
清辅音：/p/、/t/、/k/、/f/、/θ/、/s/、/W/、/t∫/、/ts/、/tr/，再加上/r/、/h/，合计12个。
浊辅音：/b/、/d/、/g/、/v/、/ð/、/z/、/T/、/dv/、/dz/、/dr/再加 上/m/、/n/、/N/、/l/、/j/、/w/合计16个。
单元音： [ i: ] [ e ] [ u: ] [ ә ] [ ɔ: ] [ i ] [ a: ] [ ә: ] [ u ] [Λ] [ ɔ ] [ æ ]
双元音： [ eә ] [ iә ] [ uә ] [ ɔi ] [ әu ] [ ai ] [ au ] [ ei ]
ed后缀读音规则
单词最后加了ed读音为，/d/，/t/，/id/，
有一些简单的规则 ：记住“清清浊浊”
所谓清清是指清辅音后面的ed也发清辅音——“/t/”
比如。worshipped tapped等等。
所谓浊浊是指浊辅音和元音（即声带震动的音）后的ed发浊辅音——“/d/”
比如。lived，opened等等
另外，比较特别的是：“t”、“d”两个辅音结尾的单词后面ed是发“/id/”的音。
比如visited waited。
- 读
[t]look - looked ask - asked walk - walked watch - watched brush - brushed wash - washed cook - cooked jump- jumped finish - finished check - checked - 读
[d]play - played answer - answered study - studied listen - listened agree - agreed borrow - borrowed return - returned worry - worried love - loved carry - carried - 读
[id]last - lasted start - started end - ended count - counted decorate - decorated invite - invited invent - invented need - needed wait - waited plant - planted visit – visited