Nowadays, more and more Chinese teenagers are becoming homebodies (someone who enjoys being at home). Most of them are shy and (沉默的).They spend time watching TV or playing with their  (可移动的) phones at home. They (很少) or never take part in outdoor activities. They never (敢于) to speak in front of a crowd.

    The problem should get much  (注意)of parents. It is clear to us that using smart phones or computers for long will do harm to students' health and(大脑). They are at the age of growing body, so this may influence their courses at school. Even if this isn't a problem, kids still prefer indoor life. After finishing the homework, they prefer to read a (小说) such as Harry Potter, listen to music or just rest at home rather than go out. Experts (建议)that teenagers should keep away from smart phones or computers and do more sports. It's good for their health and schoolwork.

    However, foreign students think quite differently. Outdoor activities are part of their (日常的) life. They go out to the beautiful nature to enjoy the warm sunshine and the fresh (空气). Even if it just means going to the park or reading a book under the tree, the pleasure is great!