题目内容：

    People are playing video games everywhere they go these days, whether they are riding a bus, waiting for the subway or sitting in a restaurant .Some of them enjoy these games so much that they can't put them down.

But is playing video games a healthy habit? The World Health Organization doesn't think so. In June, it accepted “gaming disorder (游戏上瘾)” as a mental health problem in its International Classification of Diseases (国际疾病分类), CNN reported.

According to the International Classification of Disease, "gaming disorder" means continuous or longtime video-gaming behaviors, whether online or offline. Of course, not everyone who plays video games has this disorder. It does have its main characteristics (特征).

Jack Melville, one of the "gaming disorder" video game players, told China Daily that when he began playing video games, he promised himself to control the playing time less than one hour. But as he played video games more and more and got more pleasure from playing games, he couldn't control the time anymore and he even played video games throughout the night.

Another middle school student, Camilla Liran, has much trouble in her life because of "gaming is order". She used to have quite a few friends and like to join different school clubs. However, playing video games caused serious problems to her normal life. She even argued and fought with her parents a lot because of playing video game too much.

In fact, some countries are working to solve this problem. South Korean has made a law stop children under 16 from playing online games between midnight and 6 a.m., USA Today reported.

Chinese tech company Tencent is also controlling the time that teenagers can play its games. Children between 12 and 18 years old can only play two hours every day.

1.Did WHO accept "gaming disorder" as a mental health problem?

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2.What is "gaming disorder" according to the International Classification of Disease?

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3.How can we solve this problem according to the passage?

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4.Do you think playing video games is good for study and life? Why or why not?

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