好人做到底，多年的总结送给你

/l/

在元音后（在词尾）有两种发法，第一种是你在单词中的读法，舌尖不抵住上齿龈；第二种是：

-          The tongue tip and a portion of the tongue blade contact the alveolar ridge in the midline
舌尖抵住上齿龈或上牙，两门牙中间，（舌面不要平铺，要变成细舌）。

-          Lip configuration may vary depending on phonetic context
嘴唇不要变化 （尤其不要前突）。

-          The vocal folds are abducted and vibrating

-          The velopharyngeal port is closed

-          Acoustic energy radiates laterally, around midline closure

-         

 

 

/r/

-          The tongue is elevated towards the hard palate in a bunched configuration

-          The front of the tongue is usually close to the alveolar ridge but may be retroflexed.

-          The lips are slightly unrounded

-          The vocal folds are abducted and vibrating

-          The velopharyngeal port is closed

  

下面是这俩个音的视频示范：

http://www.rachelsenglish.com/consonant_l
http://www.rachelsenglish.com/consonant_r

（注：一家之言，仅供参考）