(3) 导致的危害如：影响视力、身体虚弱、缺乏人际交往等。 2．你的看法。

注意：1.词数120左右。

2．可以适当增加细节，以使行文连贯。

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【参考范文】

As is known to us, health is important.However, a great many teenagers don't pay attention to their own health, especially during their holidays.

Some of them take too much time to watch TV, which does harm to their eyes.Some chat on the Internet all night.They can't focus on their studies.As a result, they drop out of school.Also, some are

addicted to playing games.They even dislike communicating with people around them.Therefore, it can be seen that all these teenagers spend little time in doing exercise or sports.They live an abnormal life, which affect not only their body but also their mind.

To my understanding, all the teenagers shouldn't waste too much time on TV or games.They ought to go out to do sports and have a healthy life style.