1, bā (bar). The ba in this tune is usually soft, with a soft pronunciation and not much cadence. For example, ba in Baba is this sound.

2.bá (pull). The bass of this tone is relatively heavy and has a certain cadence. For example, ba in tug-of-war, pulling weeds and pulling teeth is such a tone.

3, b (release). The ba pronunciation in this key is relatively heavy and has a certain sinking feeling. For example, the handle in the words handle, play and grab are all in this key.

4.bà (Dad). The bass of this tone is relatively heavy and has a certain sense of extension. For example, the word "Ba" in the words "Dad", "Dad" and "Dad" is such a tone.

The role of mood:

1. Differential meaning: Words in Chinese often express different meanings through different tones. For example, the words mā and m×, the former is the mother's whisper, indicating the address to the mother; The latter is the second sound of numbness, indicating the feeling of numbness. Therefore, the correct tone is very important for expressing and understanding the meaning of words.

2. Express emotions and attitudes: Tone can also be used to express the speaker's emotions and attitudes. For example, if you say yes, if you use the rising tone, then you express a relaxed and happy mood; If it is a falling tone, it expresses solemn and serious feelings.

3. Reflect oral style: In oral expression, intonation and emphasis will affect oral style. Some people are used to using light tones and consonants in spoken language, which will make the language more natural and friendly. However, some people are used to using exaggerated rising and falling tones in oral English, which will make the language more vivid.

4. Affect the rhythm and prosody of language: Chinese tones also affect the rhythm and prosody of language. Different tones combine to form different phonology, which makes the language more colorful. In poetry, songs and other art forms, the role of tone is more prominent.