阅读理解。Today is Saturday. It's half past seven in the evening. Rick is in the living room reading a book. He is reading the story of a young man called Yang Zhiyang from Baoji, Shaanxi.
Yang Zhiyang is 23 years old. His mum has ALS(渐冻症) and she has difficulty speaking and walking. Yang's father has to work to make money for the family. So Yang doesn't go to work. He has to take care of(照顾) his mum at home.
To take good care of his mother, Yang looks at her eyes very often. When his mother wants to sleep, she looks at her room. Then, Yang takes her to the bedroom. When she wants to drink water, she looks at the water cup on the table. Then, Yang gets water for her. It's important for people with ALS to do exercise. Yang always takes his mother's hands and does exercise with her. To make it fun, Yang often sings to her.
Taking care of the mother with ALS is not easy, but Yang says, "She is my mother. I'm just doing what a son needs to do. I want to do my best to help her live happily. "