电视机几乎已经进入每一个家庭，它在人们的生活中起着重要的作用，但也有一些负面影响。请根据下列提示用英语写一篇短文说明电视的用途。　　电视为我们提供了栩栩（ vivid ）如生的世界，通过电视我们可以观看比赛，可以观光、足不出户便知世事。　　电视在日常生活中起着重要的教育作用，可提供多种教育节目。　　电视也有诸多坏处，损害眼睛，看太多电视影响工作和休息，减少孩子的学习时间。　　注意：　　1. 应阐明自己的观点；　　2. 词数： 120 左右；　　3. 生词：影响— influence， affect .　　Now more and more people own televisions， which present a very vivid world to us. On television， we can watch exciting matches， see most of the places of interests without going there ourselves. From TV， We learn many things happening in the world.　　Television also plays an educational role in our daily life. Children enjoy learning much interesting knowledge from TV. By providing various TV university courses， television offers various educational programs for different viewers.　　However， television can also be harmful. It hurts our eyes. Watching TV too much influences our sleep and work. Now many students spend too much time on TV， which reduces their study time and does great harm to their health. In short， we should regard television as our assistant， not our master.