现在越来越多的人成为低头族（People who can’t help checking their phones all day are known as phubbers. Phubbing trends to involve not only the young people, but also the elderly.)，如何引导低头族抬头？你们班在英语课上举行了以“拒为低头族”为主题的演讲。假设你是学生李华，请你写一篇100词左右的演讲稿。
Nowadays, we can see many people are watching their mobile phones in subway, restaurants, elevators, roads and so on. There is no denying that people who like the mobile phone are concerned about its attractive functions. Phubbers can’t stop sending messages, surfing the Internet, listening to music and even taking photos by using the mobile phone. Moreover, some people have less time to relax themselves. They make use of the time when they are on the way to school or other places to play mobile games.
However, phubbing disturbs not only our study but also our life. On the one hand, phubbers waste lots of time playing cell phone games and sending messages, particularly in class. Other people also complain they are disturbed when phones ring in classrooms. On the other hand, it can lead to health problems. For instance, using a mobile phone on the sofa can cause back and neck pain.
As far as I am concerned, it is high time that we threw away the mobile phone and raised our heads up. Do cherish everything around us and appreciate the scenery ahead of us. What’s more, we should do more exercises and take part in real-life activities. In a word, only when we use the mobile phone reasonably, can we realize the happiness of life.That’s all. Thank you!