英语发音中c p t在s后分别发什么音，并举例说明？

"c": This is the initial letter of the word "clear" in English, which has a clear, strong sound when it's pronounced with the "t" being pronounced as a front or middle plosive (a type of articulatory sound that blocks air flow between the vocal cords). In this case, the "c" remains unrounded, and the "t" becomes a back-pitched "t", resulting in the pronunciation "g c".

Example: The word "clear" would be pronounced "sgl".

"p": This is the second letter of the word "place," which also has a clear, strong sound when pronounced with the "t" being pronounced as a front or middle plosive. However, the "t" in "place" needs to be pronounced as a back-pitched "t" in order to form the final sound "d". So, the correct pronunciation for "place" is "sdj".

Example: The word "place" would be pronounced "sdj."

"t": This is the third letter of the word "thirsty," which has a clear, strong sound when pronounced with the "t" being pronounced as a front or middle plosive. In this case, the "t" needs to be pronounced as a back-pitched "t" to form the final sound "b". So, the correct pronunciation for "thirsty" is " *** nd".

Example: The word "thirsty" would be pronounced " *** nd."

Overall, in English, the three "c p t" letters at the end of words with a consonant cluster can undergo different sounds depending on whether they're combined with a preceding vowel sound or not. In the given example, only "school" and "spend" have an additional back-pitched "t" sound to form the final vowels, while "still" does not have such a modification. When these three letters are followed by a silent "s" or "z" without any consonant clusters, they remain unchanged and pronounce the individual sounds accordingly. For example:

• "school": sggl
• "spend": *** gd
• "still": sgbd

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How do the letters "c p t" change their pronunciations after 's' and how are they used in different English words?

In English, the letter "c" and the letters "p" and "t" both serve as浊辅音 before the "s" sound, which forms the base of various English words. When a sequence of consonants is followed by the "s" sound, the following sounds undergo distinct changes:

• C: A separate, high-pitched "p" sound develops as the "t" becomes a back-pitched "t." This creates the distinctive "b" sound, making the initial "c" sound转变为 a back plosive.

  Example: 
    - "clear" -> "sgl"
    - "place" -> "sdj"
    - "thirsty" -> " *** nd"

• P: A similar process occurs when a sequence of consonants is followed by the "p" sound. Instead of forming a "p" sound directly, the "t" now becomes a back-pitched "t," producing the "b" sound in "place" and the "d" sound in "thirsty."

  Example:
    - "clear" -> "sgl"
    - "place" -> "sdj"
    - "thirsty" -> " *** nd"

• T: Unlike the previous cases, the "t" does not directly become a back-pitched "t" when the "s" sound follows it. Instead, it becomes a silent "t" that blends into the "s" sound in "spend" and "still."

  Example:
    - "clear" -> "sgl"
    - "place" -> "sdj"
    - "thirsty" -> " *** nd"

  These different sounds created by combining consonants with a "s" are often referred to as "consonant clusters." Consonant clusters can occur within words or at the end of words and may include multiple consonants, each with a specific and distinct sound. Understanding the differences in the pronunciations of "c p t" after the "s" sound can help us distinguish them in various English words and sentences.

  In summary, when the letters "c" and "p" appear together before a consonant cluster ending in "s" or "z," they develop unique sounds, usually creating the "b" or "d" in the respective words. These consonant clusters represent the distinct boundary between consonants and assist in building the overall meaning of the words. By recognizing and understanding these patterns, we can better comprehend the pronunciation of words like "clear," "place," "thirsty," and other examples that involve the combination of consonants with a "s" sound.