Watching TV has both advantages and disadvantages. On one hand, it can broaden our horizons. We can learn about different cultures, news from all over the world through various channels. For example, documentaries can show us the mysteries of nature and the long - established history of human beings. Also, some educational programs are very helpful for students to study. They can supplement the knowledge learned in school. However, if we watch TV for too long, it will do harm to our eyesight. Moreover, some people may become addicted to TV shows and waste a lot of time that could be used for more meaningful things like reading books or doing sports. In conclusion, we should watch TV in moderation. (看電視有利有弊。一方面,它能拓寬我們的視野。我們能通過不同的頻道了解世界上不同的文化、新聞。例如,紀錄片能向我們展示自然的奧秘和人類悠久的歷史。而且,一些教育節(jié)目對學生學習很有幫助,它們能補充在學校學到的知識。然而,如果我們看太長時間電視,會損害我們的視力。此外,一些人可能會沉迷于電視節(jié)目,浪費很多本可以用于更有意義的事情的時間,比如讀書或者做運動。我們應(yīng)該適度看電視。)