Video Text:

The [ei] diphthong. I find this diphthong hard to classify. I've seen some sources that use an open e sound at the beginning, that would be the [e] as in bed, and others that use a closed e, which doesn't exist on its own as a vowel sound in English. {[e], 'ey'} And then the final sound is [i], the open vowel, as in sit. Although I find it, in practice, to be halfway between the ih as in sit and the ee as in she. The first sound: ey. Now in the sound my tongue, in the very back, is actually touching the top of my mouth. Is it the top of my mouth, is it the throat, it's hard to tell because it's so far back there. Ey, ey. It's kind of where the top of the mouth meets the throat. Where the back of the tongue comes up to touch there. Ey, ey. Now that's different on the eh as in bed where the tongue is not acutally touching the roof of the mouth. Eh, as in bed, the tongue feels a little more forward. I would say this is eh, ey, ey. So it comes back a little so it can touch back there. Ey, ey, ey, as you can see, the jaw is quite closed, ey, ey, and the rest of the tongue comes forward. Ey, ey. Now to go to the ih sound, the jaw closes even more, ei ei ei, and the part of the tongue that touches the roof of the mouth is this part. So in the ey, it's back here that it touches, and in the ih, it's this part that touches. It just comes up and touches the roof of the mouth further forward.

[ei]是一個雙元音，有些人認為它的第一個音是bed中的[e]音，另外一些人認為第一個音應該念作'ey'。此外，他們認為最后一個音是sit中的開元音[i]，但是我覺得應該是介于[i]和she中的[i:]音之間。

念第一個'ey'音時，舌頭要放在很靠后，舌根要碰到口腔與喉嚨的連接處。而發(fā)bed中的[e]音時，舌頭是不碰到上顎的，舌頭的位置更靠前，所以說有所區(qū)別。發(fā)'ey'時口型收得較緊，舌頭的其他部分向前平伸。接下來就要變成[i]音了，口型將收得更緊，之前是舌根觸及上顎，現(xiàn)在要將舌頭輕輕抬起，變成舌頭前部觸及上顎。

Sample words:

say 說

grey 灰色

may 可能

Sample sentence:

I stayed at the bay and played all day. 我在海灣玩了一整天。