欢迎来到易说堂电话英语语音学习！学习到的是后元音/:/和中元音//的区分。后元音/:/和汉语中的“啊”是不一样的。发这个音呢，要比汉语中的“啊”更靠后，舌位也更低。发音时，舌尖必须离开下齿，舌身平放后缩。而且美式英语中，发/:/音的时候, 后面加一个卷舌音/r/就会变成了/ar/的音，就是发完/:/之后，舌尖卷起并往后翻，发出的音就像汉语中的“儿”化音一样。 //是一个特殊的音素，汉语里没有与之对等到的音。它是一个中元音。发这个音要特别注意声音要短促，不能拖泥带水。大家还是跟外教读一些单词，短语句子来练习这两个发音，并要注意区分。

Please read words to practice the // and /:/ sounds.

1. duck  dark

2. fun  farm

3. must  mask

4. bust  bask

5. hut  hard

6. rust  rascal

7. just  vast

8. lust  last

Please read phrases to practice the sounds.

1. hurry to the farm

2. utterly in the dark

3. must get the task done

4. a hard nut to crack

5. no lust for playing cards

6. ducks and larks

7. hardly catch the last bus

8. pass the truck

Please read some sentences to practice the sounds.

1. He hurried to catch the last bus.

2. She has no lust for hard currency.

3. Mark is a hard nut to crack.

4. We must finish the task before dark.

5. Mark made bundles of money last year.

6. Sara feels troubled about Mark’s lust.

7. The dog just keeps barking in the dark.

8. Please do not pass the buck to others.