Parents' encouragement is good for their children's growth. It's a nice way for parents to speak highly of their children when they make progress._____________________________________________
One possible version:
Parents’ encouragement is good for their children’s growth. It’s a nice way for parents to speak highly of their children when they make progress. It is very common for parents to buy their children presents. For example, when Li Jiang made progress in his study, his parents bought him stationery, a mobile phone and so on. After Li Jiang won prizes in the competitions, his parents took him to the restaurant for a big dinner. When Li Jiang did some housework, he co uld get some extra pocket money from his parents.
I don’t think it’s really a good way for Li Jiang’s parents to give him something or money as encouragement. I don’t want my parents to buy me something when I’ve done very well in my study. I hope they can give me more chances to decide what I can do in my free time. If so, I will be more confident to do everything better. And it’s good for my growth.