相信有不少初學英語的朋友都會對ed發音有點疑惑，為什么同樣的ed，會有
/d/,/t/,/id/三種發音呢？那么它們的發音規則是什么呢？接下來我們一起來揭曉ed發音的秘密。
清輔音和濁輔音
發音時聲帶不震動、送氣的叫清輔音；發音時聲帶震動、不送氣的叫濁輔音。
清輔音：/p/、/t/、/k/、/f/、/θ/、/s/、/W/、/t∫/、/ts/、/tr/，再加上/r/、/h/，合計12個。
濁輔音：/b/、/d/、/g/、/v/、/ð/、/z/、/T/、/dv/、/dz/、/dr/再加 上/m/、/n/、/N/、/l/、/j/、/w/合計16個。
單元音： [ i: ] [ e ] [ u: ] [ ә ] [ ɔ: ] [ i ] [ a: ] [ ә: ] [ u ] [Λ] [ ɔ ] [ æ ]
雙元音： [ eә ] [ iә ] [ uә ] [ ɔi ] [ әu ] [ ai ] [ au ] [ ei ]
ed后綴讀音規則
單詞最后加了ed讀音為，/d/，/t/，/id/，
有一些簡單的規則 ：記住“清清濁濁”
所謂清清是指清輔音后面的ed也發清輔音——“/t/”
比如。worshipped tapped等等。
所謂濁濁是指濁輔音和元音（即聲帶震動的音）后的ed發濁輔音——“/d/”
比如。lived，opened等等
另外，比較特別的是：“t”、“d”兩個輔音結尾的單詞后面ed是發“/id/”的音。
比如visited waited。
- 讀
[t]look - looked ask - asked walk - walked watch - watched brush - brushed wash - washed cook - cooked jump- jumped finish - finished check - checked - 讀
[d]play - played answer - answered study - studied listen - listened agree - agreed borrow - borrowed return - returned worry - worried love - loved carry - carried - 讀
[id]last - lasted start - started end - ended count - counted decorate - decorated invite - invited invent - invented need - needed wait - waited plant - planted visit – visited