中国大学MOOC: Both ‘clear’ [l] and ‘dark’ [ɫ] are formed with the tip of the tongue touching the teeth ridge. The only difference is that in the articulation of the ‘clear’ [l], the back part of the tongue is raised towards the hard palate. In the articulation of the ‘dark’ [ɫ], the front part of the tongue is raised towards the soft palate and slightly velarised, with a concave upper surface.
举一反三
- According to the part of the tongue which is raised, vowels can be divided into the following kinds: front, middle, central, back.
- 中国大学MOOC: Velar sounds are made with the back of the tongue raised to touch the velum.
- When you pronounce the /l/ sound in the word “world”, which of the following is correct? A: The tip of your tongue touches above and behind your upper teeth. B: The blade of your tongue touches above and behind your upper teeth C: Your tongue is relaxed at the bottom of your mouth. D: Your tongue is tense at the bottom of your mouth.
- Soft tissues include the teeth, tongue and lips.
- 中国大学MOOC: Pure vowels can be classified into three categories: front vowels, central vowels and back vowels. The two vowels/ɜː/ and /ə/ are classified into ______ vowels because they are made with the middle part of the tongue being raised.