中国大学MOOC: How can you distinguish between front vowels, central vowels, and back vowels?
In terms of which part of the tongue is raised.
举一反三
- 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.
- 中国大学MOOC: There are two central vowels in English. What are they?
- 中国大学MOOC: In the following vowels, are back vowels.
- 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:" In the following groups of vowels, are not all front vowels.";
内容
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According to the shape of the lips, vowels can be classified into close vowels, semi-close vowels, semi-open vowels and open vowels. A: 正确 B: 错误
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中国大学MOOC: The difference between vowels and consonants lies in the obstruction of the airstream.
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中国大学MOOC: Among the 20 vowels in RP, there are 12 pure vowels and 8 diphthongs.
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How many back vowels are there in English? What are they? 6, and they are /u:/, /u/, /ɔ:/, /ɔ/, /ɑ:/ and /ʌ/.
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中国大学MOOC:"It is common to insert a consonant between two vowels or a vowel between two similar consonants.";