发音
舌尖抵下齿, 牙齿几乎闭合
嘴唇向两旁伸开, 成扁平行, 做微笑

单词
be he me
pea sea tea
fee feel free
see street sweet
three sleep keep
please meat meal
achieve believe relief
agree degree screen
machine magazine police
receive conceive perceive

句子
I feel free.
He loves tea.
The meal is free.
There are three trees.
We eat sweet ice cream.

同音
[i:]
tea tee
sea see
pea pee
heal heel
meat meet
scene seen
steal steel
weak week
suite sweet
peace piece

辨音
[i:] [i]
eat it
feel fill
seat sit
heat hit
bean bin
deed did
steal still
seek sick
cheap chip

[i:] [e]
feel fell
seal sell
beat bet
meet met
mean men
steep step
wheel well
cheek check
sweet sweat