该课程是Paul S Gruber 保罗格罗博士，美国英语发音主教练录制的视频教程。
1. American English Vowels
2. Vowel EE
3. Vowel I
The best way to learn American vowels is by Ear Training. Listen carefully and repeat.
Front Vowels: (From high to low)
EE as in Heat
I as in Hit
AE as in Hate
EH as in Het (nonsense word)
A as in Hat
Back Vowels: (From high to low)
OO as in Boot
U as in Book
OW as in Boat
AW as in Bought
AH as in Bot (nonsense word)
Comparing Heat (EE) and Hit (I)
Remember: Heat is high. Hit is lower.
Heat – Hit
Keen – Kin
Deal – Dill
Seek – Sick
Seen – Sin
Reap – Rip
Teal - Till
Bean –Been (Bean is high. I ate a bean. Been is low. I have been here.)
EE Vowel Sound
Remember, smile and think high.
Speeding on the Freeway
Happily eating cheese
He and She
Skiing very Rapidly
She sees a monkey eating honey.
We see a pony stealing money.
Who can he see?
It must be me!
I Vowel Sound
EE and I Practice (All EE sounds are underlined.)
The beans have been cooking since six o’clock.
Sit in that seat by the window.
We ate our meal, by the mill.
The seal will live in the ocean.
Tim’s team grinned after seeing the green field.
Pip and Pete shipped the sheep cheaply.
Those bins are for Bill’s beans.
Does Jim still steal Jill’s jeans?
The girls put concrete on Jill’s sneakers.
Pick cherries at their peak or you will eat the pits.