你可以选择性的收听这位普通话发音都不标准的女主持的介绍：
我们学习到的是前元音/e/和/æ/区别，这是汉语中没有的两个音。有的学生发/e/音容易张口过大，而发/æ/则容易张口不足。许多人在区分这两个音的时候，只注意到它们的张口程度大小不同，这倒也没错，但还要注意这两个音的发音效果也不区别，发/æ/音时不只是把下巴往下拉，而要整个张开口，音要放开。为了更好的读准这个音，还是需要跟外教跟读一些单词，短语，句子来练习这两个发音
Please read groups of words to practice the /e/ and/æ/sounds.
1. red rat
2. bed bad
3. set sad
4. net nap
5. get gap
6. met mad
7. men man
8. let lad
Please read phrases to practice the sounds.
1. a red flag
2. the bag on the bed
3. the lamp on the desk
4. all the mad men
5. met a fat cat
6. a man of men
7. never make your friends sad
8. never blink the facts
Please read some sentences to practice
1. Jack is a man of letters.
2. The red rat is getting mad.
3. She sat on the bed and felt very sad.
4. Jenny wants to marry a fat cat.
5. She let the lad into the back.
6. She never makes friends with bad man.
7. Last Saturday was Mary’s red-letter day.
8. He is collecting facts for his MA essay.
9. She wants to get married soon.
10. Sad things are hard to forget.
