The document discusses the articulation of English vowels. It explains that for monophthongs, lip rounding becomes less for numbers 1-4 and more for numbers 6-9, with 1-4 being front vowels and 5-9 being back vowels. It also notes that tongue position changes, with the mouth opening more for 1-5 and less for 5-9. Exceptions in pronunciation among different dialects are also mentioned.

1. TEACHENG ENGLISH PHONETICS Victor GAO Zhejiang Education Center for teachers

3. 1 2 3 4 5 6 7 8 9 10 11 12 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 1-5 号开口越来越大 5-9 号开口越来越小 5-9 号为后元音 10-12 号为中元音

4. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs

5. Articulation of vowels From: Jennifer Venditti slide he who

6. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs

7. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

8. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

9. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

10. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

11. 1 2 3 4 5 6 7 8 9 10 11 12 1-5 号开口越来越大 5-9 号开口越来越小 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

12. Tongue position for AE front vowels heed / i: / hid / / head / e / had / /

13. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

14. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

15. Tense / u: / and lax / /

16. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

17. Tongue position for back vowels who’d /U/ hood / U / hod / / However, many speakers, for example in California, (a) use an unrounded vowel in the place of [U] (b) use a central vowel in the place of [u  ]

18. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

19. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs

20. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs

21. 1 2 3 4 5 6 7 8 9 10 11 12 English monophthongs :

22. 1 2 3 4 5 6 7 8 9 10 11 12 1-5 号开口越来越大 5-9 号开口越来越小 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

23. 1 2 3 4 5 6 7 8 9 10 11 12 5-9 号开口越来越小 1-5 号开口越来越大 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

24. 1 2 3 4 5 6 7 8 9 10 11 12 5-9 号开口越来越小 1-5 号开口越来越大 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

25. 1 2 3 4 5 6 7 8 9 10 11 12 5-9 号开口越来越小 1-5 号开口越来越大 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

26. 1 2 3 4 5 6 7 8 9 10 11 12 1-5 号开口越来越大 5-9 号开口越来越小 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

27. 1 2 3 4 5 6 7 8 9 10 11 12 5-9 号开口越来越小 1-5 号开口越来越大 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

28. 1 2 3 4 5 6 7 8 9 10 11 12 5-9 号开口越来越小 1-5 号开口越来越大 : 1-4 号唇型越来越扁 6-9 号唇型越来越圆 1-4 号为前元音 English monophthongs 5-9 号为后元音 10-12 号为中元音

29. The speech organs 双唇 齿龈 软颚

30. 说话时 如果吞咽食物 或喝水 就可能会 呛入气管 造成危险 声门 食道

31. 齿龈 上齿 双唇 软腭 声门 口腔 咽腔 鼻腔 硬腭 声带

32. 木桶效应

33. 视点与效果的差距