Children can usually talk when they are one and a half years old, but some children may be a little late, which is normal. Infantry is a critical period of language development. From 12 months after birth to 18 months, children in this period often use a simple word instead, so don't worry too much.

A 2-month-old baby can already recognize his mother's voice. When the baby is in a good mood, if you talk to him or smile at him, he will make a smiling expression and pronounce some monosyllabic vowels, such as "a/o". Although this sound is not a language, it is also a pronunciation exercise.

At the age of 5 months, the baby entered the stage of babbling, and his pronunciation became richer and richer. When you see familiar people or things, you will read them out on your own initiative, and when you hear your name called, you will stare and smile.

Extended data:

1. Usually parents should communicate with their babies more to stimulate their language development.

2. Speak in Mandarin with children, and the language environment should not be too complicated. When talking to children, pronounce clearly and speak slowly.

3, often read books to children, read children's songs, and attract children's desire to speak.

4. When the child wants something, guide the child to say the name of the thing, and don't rush to meet the child's requirements.