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2023.02.18 ~ 2023.06.30
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开始:2023-02-18

截止:2023-06-30

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成绩预发布时间 2023-06-27

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Unit Three The English Vowels

By 王雪纯 老师 2023-05-13 1534次浏览
  1. Why do we call the English vowels front or central or back vowels?
  2. Why is the vowel /ɪ/ sometimes replaced by the "non-phonemic symbol [i]"?
  3. What are the features of closing diphthongs?

71 回复

  • 王毅2班50037 2023-05-13
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

     

    回复
  • 甘彩云1班50101 2023-05-17
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 张蓝溪5班50085 2023-05-17

    Because that we pronounce these vowels depends on the position of the tongue in the horizontal plane .The front  vowels are produced with the front of the tongue raised toward the front of the mouth. The rest can be done in the same manner.

    回复
  • 余欣滢5班50094 2023-05-20
    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 杨艺1班50004 2023-05-21

    Because we particulate different vowels in different ways. 

    • Front vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central  vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back  vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    回复
  • 余潇5班50087 2023-05-21

    Q3:Closing diphthongs are a type of diphthong in which the second vowel element is a closer vowel than the first element. The features of closing diphthongs can be described as follows:

    1. Movement: Closing diphthongs involve a noticeable gliding or movement of the vowel sound from the first element to the second element within a single syllable.

    2. Vowel Quality: The first element of a closing diphthong is typically a more open vowel sound, while the second element is a closer vowel sound.

    3. Duration: The second element of a closing diphthong is often shorter in duration compared to the first element.

    4. Articulatory Description: Closing diphthongs involve a change in the position of the tongue or other articulatory organs during the glide from the first to the second vowel sound.

    Examples of closing diphthongs in English include:

    1. /aɪ/ as in "price" or "ride": The first element /a/ is a more open vowel sound, while the second element /ɪ/ is a closer vowel sound.

    2. /ɔɪ/ as in "boy" or "coin": The first element /ɔ/ is a more open vowel sound, while the second element /ɪ/ is a closer vowel sound.

    3. /aʊ/ as in "house" or "out": The first element /a/ is a more open vowel sound, while the second element /ʊ/ is a closer vowel sound.

    回复
  • 李文6班50123 2023-05-25

    English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.

    Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

     

    Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

     

    Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

     

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

     

    The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.

    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:

    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

     

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

     

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

     

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 任珂瑶5班 2023-05-27

    The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 江琳一班50009 2023-05-29

    English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 顾小莹 2023-05-29

    The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 严南2班50028 2023-05-30
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

     

    回复
  • 02邓雅心 2023-05-30
    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

     

    回复
  • 马一可1班50020 2023-05-31
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

     

    回复
  • 郝昱6班50117 2023-06-01

    English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.

    Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

     

    Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

     

    Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

     

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

     

    The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.

    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:

    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

     

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

     

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

     

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

    回复
  • 张文卓2班50035 2023-06-02

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    回复
  • 张文卓2班50035 2023-06-02
    1. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    回复
  • 陈豆豆2班50032 2023-06-02

    Q1:English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.

    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

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  • 赵坤阳3班50057 2023-06-03
    1. Why do we call the English vowels front or central or back vowels? English vowels are classified as front, central, or back based on the position of the tongue in the mouth when producing the vowel sound. This classification system helps us understand the articulatory differences and the placement of the tongue.
    • Front vowels: These vowels are produced with the front part of the tongue raised towards the front of the mouth. Examples include /i/ as in "see" and /e/ as in "bed".
    • Central vowels: These vowels are produced with the tongue in a more central position in the mouth. Examples include /ə/ as in "about" and /ʌ/ as in "cup".
    • Back vowels: These vowels are produced with the back of the tongue raised towards the back of the mouth. Examples include /u/ as in "too" and /ɔ/ as in "thought".

    The classification of vowels into front, central, and back helps us describe and understand the articulatory and acoustic characteristics of vowel sounds in English.

    2.Why is the vowel /ɪ/ sometimes replaced by the "non-phonemic symbol [i]"? The vowel /ɪ/ is the standard representation of the sound in the International Phonetic Alphabet (IPA) for English. However, in certain contexts or dialects, some speakers may pronounce the vowel closer to [i], which is a higher and more fronted vowel.

    The use of [i] instead of /ɪ/ is a transcription convention to represent the phonetic variation observed in some accents or speech patterns. It acknowledges that the actual pronunciation may deviate slightly from the standard /ɪ/ and can be closer to [i].

    It's important to note that the substitution of /ɪ/ with [i] is not a universal phenomenon and may vary among individuals or dialects. It's a way to capture the nuances of pronunciation and highlight the variations that exist in spoken English.

    3.What are the features of closing diphthongs? Closing diphthongs are a type of diphthong where the vowel sound glides or moves from one vowel quality to another, usually towards a closer vowel sound, in the same syllable. The closing diphthongs in English are /ɪə/ as in "ear," /eɪ/ as in "day," /aɪ/ as in "high," and /ɔɪ/ as in "boy."

    The features of closing diphthongs include:

    • Movement: Closing diphthongs involve a continuous movement or glide from one vowel quality to another within the same syllable.
    • Vowel quality: The first element of the diphthong tends to be a more open vowel sound, while the second element is a closer vowel sound.
    • Length: Closing diphthongs are generally longer in duration compared to single vowels.
    • Stress: The stress in a word with a closing diphthong falls on the syllable containing the diphthong.
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  • chbts 2023-06-03

    Because that we pronounce these vowels depends on the position of the tongue in the horizontal plane .The front  vowels are produced with the front of the tongue raised toward the front of the mouth. The rest can be done in the same manner.

    Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

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  • 杨心琦3班50049 2023-06-03
    1. Why do we call the English vowels front or central or back vowels? English vowels are classified as front, central, or back based on the position of the tongue in the mouth when producing the vowel sound. This classification system helps us understand the articulatory differences and the placement of the tongue.
    • Front vowels: These vowels are produced with the front part of the tongue raised towards the front of the mouth. Examples include /i/ as in "see" and /e/ as in "bed".
    • Central vowels: These vowels are produced with the tongue in a more central position in the mouth. Examples include /ə/ as in "about" and /ʌ/ as in "cup".
    • Back vowels: These vowels are produced with the back of the tongue raised towards the back of the mouth. Examples include /u/ as in "too" and /ɔ/ as in "thought".

    The classification of vowels into front, central, and back helps us describe and understand the articulatory and acoustic characteristics of vowel sounds in English.

    2.Why is the vowel /ɪ/ sometimes replaced by the "non-phonemic symbol [i]"? The vowel /ɪ/ is the standard representation of the sound in the International Phonetic Alphabet (IPA) for English. However, in certain contexts or dialects, some speakers may pronounce the vowel closer to [i], which is a higher and more fronted vowel.

    The use of [i] instead of /ɪ/ is a transcription convention to represent the phonetic variation observed in some accents or speech patterns. It acknowledges that the actual pronunciation may deviate slightly from the standard /ɪ/ and can be closer to [i].

    It's important to note that the substitution of /ɪ/ with [i] is not a universal phenomenon and may vary among individuals or dialects. It's a way to capture the nuances of pronunciation and highlight the variations that exist in spoken English.

    3.What are the features of closing diphthongs? Closing diphthongs are a type of diphthong where the vowel sound glides or moves from one vowel quality to another, usually towards a closer vowel sound, in the same syllable. The closing diphthongs in English are /ɪə/ as in "ear," /eɪ/ as in "day," /aɪ/ as in "high," and /ɔɪ/ as in "boy."

    The features of closing diphthongs include:

    • Movement: Closing diphthongs involve a continuous movement or glide from one vowel quality to another within the same syllable.
    • Vowel quality: The first element of the diphthong tends to be a more open vowel sound, while the second element is a closer vowel sound.
    • Length: Closing diphthongs are generally longer in duration compared to single vowels.
    • Stress: The stress in a word with a closing diphthong falls on the syllable containing the diphthong.
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  • 吴苡欣 2023-06-03
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

        

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  • 向颜 2023-06-03
    1. It dependes on the position of the tongue when we produce a vowel sound.   Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth.     Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth.        Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. 
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  • 向颜 2023-06-03

    3. The features of closing diphthongs include:

    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

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  • 姜欣语2班50026 2023-06-04
    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

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  • Freya 2023-06-04

    Because we particulate different vowels in different ways. 

    • Front vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central  vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back  vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

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  • 张淑颖6班50122 2023-06-05

    English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.

    Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

     

    Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

     

    Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

     

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

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  • 李明悦4班50068 2023-06-05
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

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  • 张瑶2班050025 2023-06-05
    1. Why do we call the English vowels front or central or back vowels? English vowels are classified as front, central, or back based on the position of the tongue in the mouth when producing the vowel sound. This classification system helps us understand the articulatory differences and the placement of the tongue.
    • Front vowels: These vowels are produced with the front part of the tongue raised towards the front of the mouth. Examples include /i/ as in "see" and /e/ as in "bed".
    • Central vowels: These vowels are produced with the tongue in a more central position in the mouth. Examples include /ə/ as in "about" and /ʌ/ as in "cup".
    • Back vowels: These vowels are produced with the back of the tongue raised towards the back of the mouth. Examples include /u/ as in "too" and /ɔ/ as in "thought".

           The classification of vowels into front, central, and back helps us describe and understand the articulatory and acoustic characteristics of vowel sounds in English.

            2.Why is the vowel /ɪ/ sometimes replaced by the "non-phonemic symbol [i]"? The vowel /ɪ/ is the standard representation of the sound in the International Phonetic Alphabet (IPA) for English. However, in certain contexts or dialects, some speakers may pronounce the vowel closer to [i], which is a higher and more fronted vowel.

            The use of [i] instead of /ɪ/ is a transcription convention to represent the phonetic variation observed in some accents or speech patterns. It acknowledges that the actual pronunciation may deviate slightly from the standard /ɪ/ and can be closer to [i].

             It's important to note that the substitution of /ɪ/ with [i] is not a universal phenomenon and may vary among individuals or dialects. It's a way to capture the nuances of pronunciation and highlight the variations that exist in spoken English.

             3.What are the features of closing diphthongs? Closing diphthongs are a type of diphthong where the vowel sound glides or moves from one vowel quality to another, usually towards a closer vowel sound, in the same syllable. The closing diphthongs in English are /ɪə/ as in "ear," /eɪ/ as in "day," /aɪ/ as in "high," and /ɔɪ/ as in "boy."

           The features of closing diphthongs include:

    • Movement: Closing diphthongs involve a continuous movement or glide from one vowel quality to another within the same syllable.
    • Vowel quality: The first element of the diphthong tends to be a more open vowel sound, while the second element is a closer vowel sound.
    • Length: Closing diphthongs are generally longer in duration compared to single vowels.
    • Stress: The stress in a word with a closing diphthong falls on the syllable containing the diphthong.
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  • 曾洋洋 2023-06-05
    1. English vowels are called front, central, or back based on the position of the tongue in the horizontal plane when producing the vowel sound.
    • Front vowels: These vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central vowels: These vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back vowels: These vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

    These terms describe the general position of the tongue in relation to the mouth during the production of these vowel sounds.

    1. The vowel /ɪ/ in English, as in words like "sit," can vary in its realization depending on the speaker and the phonetic context. In some cases, it may be pronounced with a slightly higher and more close position of the tongue, approaching the sound [i], which is the phonetic symbol for the vowel in words like "see." This variation is called allophony, where different phonetic realizations of a phoneme occur in different contexts. Although [i] is not considered a separate phoneme in English, it can be used as a non-phonemic symbol to represent the allophonic variation of /ɪ/ in certain contexts.
    2. Closing diphthongs, also known as falling diphthongs, are a type of diphthong where the vowel sound glides from a more open position to a closer or more closed position within a single syllable. The features of closing diphthongs include:
    • Glide: Closing diphthongs involve a smooth glide or transition from one vowel quality to another within the same syllable. The starting point is typically a more open vowel sound, while the ending point is a closer or more closed vowel sound.

    • Duration: Closing diphthongs are relatively longer in duration compared to pure vowel sounds. The transition from the starting to the ending vowel creates a longer overall duration.

    • Articulation: Closing diphthongs involve a change in the articulatory position of the vocal tract. For example, in the English closing diphthong /aɪ/ as in "ride," the sound starts with an open vowel /a/ and glides to a closer vowel /ɪ/ within the same syllable.

    Other examples of closing diphthongs in English include /ɔɪ/ as in "boy" and /eɪ/ as in "say."

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  • 徐苡芮英语3班 2023-06-06
    • Front vowels are produced with the front of the tongue raised toward the front of the mouth. Examples of front vowels in English include /i/ as in "see" and /e/ as in "bed."

    • Central  vowels are produced with the tongue in a more neutral or central position in the mouth. Examples of central vowels in English include /ə/ as in "about" and /ʌ/ as in "but."

    • Back  vowels are produced with the back of the tongue raised toward the back of the mouth. Examples of back vowels in English include /u/ as in "too" and /ɔ/ as in "thought."

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