Abstract: There must be some correlation between phonetics and grammar of a language. Mandarin Chinese is featured by the fact that its syllable is with a tone. We can easily find the correlation among the following aspects:the similar structure between syntax and word-building, morphology, word rhyme, poetical meter and the categorization of Chinese characters. A survey of many languages, especially represented by Mandarin Chinese, shows that there is a clear correlation between a syllable with a tone, being monosyllabic, syntactic strategies, and sentence-initial nominal elements. Therefore, we shall pay more attention to the dominating phenomenon of a syllable with a tone, which can function as a starting point of interpreting Mandarin Chinese. The case in Mandarin Chinese is of universal significance.

Key words: syllable with a tone, tone, Mandarin Chinese, Chinese character, correlation