题目

I'm a middle school student. I like fashionable clothes. I like wearing a scarf. I like red shirts and I have curly hair. They all look cool. My parents and teachers sometimes ask me not to do so, but I don't mind. These are my own(自己的) things. Don't you think so? —Sally My uncle is 40 years old. He works for a magazine. He writes articles for children. He visits many places and talks with many children. He thinks children should not watch TV too much and that some TV shows are not good for them. —Barry I study in a middle school. I have many rules at school. I can't be late f人在跑动时，若脚突然被石头绊一下，会向什么方向摔倒？并请你解释这种现象？