Baby’s language development is an extremely important part of baby’s growth and development, so how can parents understand their baby’s language development? Is there a sequence to your baby’s language development? What factors are associated with a baby’s language development? How can parents seize the critical period of their baby’s language development? The order of baby’s language development Newborns communicate with adults using crying sounds; 2 months to pronounce vowels such as ɑ, o and e; 3 to 4 months to pronounce babbling vowels and be able to respond to adult speech; 5 to 6 months to pronounce consonants such as ɡ, k, b and p, and occasionally pronounce the pinyin kɑ-kɑ and lɑ-lɑ; 7 to 8 months to pronounce mɑ-mɑ and bɑ-bɑ, but no referent, and be able to understand “From 9 to 10 months, they pronounce mɑ-mɑ and bɑ-bɑ, sometimes with reference, and understand the connection between words and actions; from 11 to 12 months, they pronounce more words and syllables in succession, and appear to have “difficult language”. Baby’s language development environment Babies must live in a language environment in order to learn language. Therefore, parents should create a rich language environment to promote language development. If parents are responsive to their baby’s pronunciation, the baby’s language will develop faster. Parents should imitate the baby’s voice and respond to it when the baby pronounces words, as this will stimulate the baby’s interest in pronunciation. Conversely, parents who do not respond may inhibit the baby’s vocalizations, which may be detrimental to language development. If the baby does not respond positively, the baby may put the word “mommy” aside and stop saying it for months, perhaps reverting to meaningless babbling. Whispering in baby’s language development Child language is good for young infants to learn language. It is characterized by clear pronunciation, slow articulation, high tone of voice, emotion, and short, repetitive sentences, such as “Baby! Mommy – loves you!” This language is good for the baby to distinguish speech sounds and store them in the brain. During the period when the mother speaks to the baby, she can still use slow normal sentences, and when the baby is about 1 year old, she can replace the language with normal sentences. When the mother is with the baby, she says what she does and says the name of the object when she sees it, so that the baby can easily understand the meaning of the language. The impact of baby’s language development on intelligence Language is of great importance to baby’s intellectual development. There is a critical period for language learning, and in order to learn language properly, babies must be exposed to a normal language environment from birth, and babies from different countries naturally learn different national languages in different language environments. The infant’s brain has the ability to distinguish linguistic stimuli from other stimuli from birth, and language activity develops preferentially in the left hemisphere of the brain after birth and even before birth. As the brain develops, the cortical structures corresponding to language activity undergo a process of specialization. 0 to 3 years of age is the period of fastest brain development and the most important time for children to learn language. 5 years of age is the peak of language potential development, and after 6 to 7 years of age, language learning ability declines at an accelerated rate. If children are not exposed to a normal language environment before puberty, their left hemisphere language potential disappears and they will not acquire normal language skills. For example, Kamala, an Indian “wolf child”, was rescued from a wolf’s den by American Pastor Singh at the age of 8. After living in human society for 10 years, she still could not speak and could only howl and crawl. This is because she missed the critical period of language, resulting in irreversible damage to her language ability and intelligence. After detailed communication, we learned that the mother’s pregnancy and delivery history were normal. There was also no brain damage during the neonatal period, hearing was normal, and there were no abnormalities in the structures of the oral cavity that could rule out causes related to the language disorder. Then it is time to focus on the question of who is raising this child? The baby’s mother said that she had been taking care of the baby herself, but that the mother hardly spoke to the baby during the process because the parents thought that the child could not understand or speak, so there was no need to talk to him. The mother said she was busy doing housework from morning to night and also taking care of him, so she was very busy and had no time to talk to her child. Obviously, the reason why this child cannot speak is the lack of language environment. For example, children raised by deaf people do not speak and only sign language. In fact, children are born with the ability to hear sounds, and there are innate devices in the brain for speech development, but the child must learn language in a normal language environment to learn, if the mother talks to him often while raising him, telling him what he is doing and what he sees and says, the child will naturally be able to understand the language and learn to speak. Therefore, parents must pay attention to the baby’s language environment. This mother lost the opportunity to develop her child’s language skills due to lack of knowledge. Even if the baby learns to speak later in life, his language potential will be greatly affected. Language is a tool for expressing ideas and interaction, and lagging language will seriously affect the child’s future intellectual development. Therefore, parents must pay attention to the language development of their babies, especially the environment in which they learn language and the critical period of their babies’ language development.