她的R舌頭位置不是錯，是one way of doing it.

看我的correspondence with her asssistant Tom:

Hi WQ,
I'm so glad you sent me this link! Great information in there. Would you mind asking this question on the Discussion Room Classroom? I think some other students would love learning from this. Rachel and I have talked a lot about the R sound. She teaches the R sound the way she does because it seems to be a little easier for some non-native speakers to learn. However, I will tell you, that as I worked on my speech in graduate school, we were taught to create our R sound the way you do. With the tongue tip pointing up, and curled back a bit. The hollow sound occurs when the tongue is pulled too far back, and you also don't want the tongue to make actual contact with the hard palate, because then you lose the sound altogether. But the way you make your R sound is fine! And we can talk a little bit about that during your session if you'd like! But please do post this link and question in the classroom for the rest of the students to enjoy and use, if you have time!! Thanks! - Tom

On Tue, May 14, 2013 at 3:17 PM, WQ 

所有跟帖： 

• 在第一個視頻裏，R的位置圖，舌尖指向牙齒，這是不可能發出正確的R的。 -DirtyTalk- ♂ (236 bytes) () 05/16/2013 postreply 11:54:51

• 你很牛，下次說一下怎麽發/e / as in bed 的音吧。我怎麽覺得超難發啊。：） -beautifulwind- ♀ (0 bytes) () 05/16/2013 postreply 13:59:41

• 試著往長元音a,音標/ei/的前半部分的發音位置靠， -ntotl- ♂ (52 bytes) () 05/16/2013 postreply 15:07:23

• 謝謝永學兄！我得再體會體會。經常一會發的可能對，一會發得又不對。：） -beautifulwind- ♀ (0 bytes) () 05/16/2013 postreply 17:13:39

• e 的關鍵是舌頭不能動 -DirtyTalk- ♂ (783 bytes) () 05/17/2013 postreply 10:39:57

• 樂翻了我，幸好不是在office裏，DT你太可愛啦～～～ -非文學青年- ♀ (0 bytes) () 05/17/2013 postreply 10:44:44

• 學羊叫是我已知的讓中國人糾正E音的最快方法。雖然比較搞笑。 -DirtyTalk- ♂ (0 bytes) () 05/17/2013 postreply 16:47:14

• 大師能不能談一下雙元音的發音? 這是我的老大難。非常同意e發音舌頭不動 -好學又好問- ♀ (49 bytes) () 05/17/2013 postreply 13:26:24

• 大家交流而已，何來大師。什麽是雙元音？ -DirtyTalk- ♂ (0 bytes) () 05/17/2013 postreply 16:40:45

• 太幽默樂，我的新偶像，哈哈。 -非文學青年- ♀ (0 bytes) () 05/17/2013 postreply 16:47:08

• 我是說幽默大師，哈。比方說say裏ei音，coat裏的ou音，還有oi，等 -好學又好問- ♀ (51 bytes) () 05/17/2013 postreply 17:40:05

• 哇，DT, 你果然牛啊！！ 一下子就有感覺啦！！謝謝！！！ -beautifulwind- ♀ (0 bytes) () 05/17/2013 postreply 19:55:05