the best thing about TV is that you can always find something to watch. TV series, talkshows, movies, documentaries, etc.. whatever you want just name it.

　　disadvantages:

　　it is radioactive: it hurts our eyes. after long time watching, your eyes will sore.

　　it turns us into passive viewers: we just sit there and wait for the information to come up. it is one-way communication. we grow lazy and passive, less willing to move.

　　Makes us unproductive

　　makes us less able to think, judge and analyse.

　　Leads to decline of intelligence on a global level.

　　3，长时间看电视对老人/小孩好么?

　　Watching TV for too long will:

　　do harm to our health

　　make our eye sight suffer

　　bring overwork upon our brains

　　shorten our attention span: too rapid flow of information and pictures, too stimulating

　　4，学生可以通过电视上课么?

　　Well, It depends on the type of TV we are talking about.

　　digital TVs based on new type of TV cable network are interactive.

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