1. "Bears haunt": This is a three-dimensional animated cartoon, which mainly tells the story of three bears. They fight against bad people and protect the forest in the city. The plot of the cartoon is simple and easy to understand, which is suitable for children who have just learned pinyin.

2. "Piggy Peggy": This is a two-dimensional animation, which mainly tells the story of a pig and her family, as well as all kinds of interesting things they encountered in their lives. The comic has a simple and interesting plot, which is suitable for children who have just started learning pinyin.

3. Doraemon: This is a three-dimensional animation, which mainly tells the story of Doraemon, a robot cat from the future. He has experienced all kinds of fantasy adventures with the little boy Daxiong. This cartoon has a rich and interesting plot and is suitable for children who improve their pinyin ability.

4. Qiao Hu: This is a two-dimensional animation, which mainly tells the story of a little dog, Qiao Hu. He studies, lives and plays with his good friends in life. The comic plot is simple and interesting, which is suitable for children to improve their pinyin ability.

5. Spongebob: This is a two-dimensional animation, which mainly tells all kinds of interesting stories about a sponge and his friends in the underwater world. The plot of the cartoon is simple and easy to understand, and it is suitable for children who improve their pinyin ability to watch.