Part One听辨练习
比较两类音节末辅音前面的元音的发音长度
　　a b a b a b
　　1. did bit 2. need neat 3. Bill built
bed bet made late well help
good foot side right four fork
　　Bud but food suit far march
had hat road coat Dan dance
　　rod not loud out bang bank
　　broad brought bird Burt doll golf
Part Two听辨练习
A. Listen to these words and phrases, then repeat.
1. see sea see the sea
2. buy tie buy a tie
3. enjoy toy enjoy the toy
4. pay way pay your way
5. hold gold hold the gold
6. lose shoes lose your shoes
B. Listen to and repeat the sentences.
1． The cat is black．
2． The rat is fat．
3． The shoe is blue．
4． The song is long．
5． The day is gray．
6． The pig is big．
7． The wood is good．
8． The ice is nice．
C. Listen to and repeat the groups of words.
Ben bend bent car card cart
Bill build built star large March