题目内容：

    Playgrounds offer kids fresh air, friends, and exercise. However, each year, more than 200,000 kids go to hospital because they are hurt in one way or another when playing on the playground. So what can we do to improve the situation?

        We should make sure the playground is safe for the children. It should be soft and thick enough, so when the children fall, they won't hurt too much. Things like water, rocks or broken glass might cause danger to the kids. Cleaners should check the playground from time to time and clear away these dangerous things. In fact, children themselves also need to help keep the playground clean and safe. That means each time after playing they should pick up the rubbish they've produced. If someone finds there is something wrong with the equipment(设施), he should report to the keeper of the playground, so people will come to fix it.

        Teaching kids how to play safely is also very important. If they know the rules of the playground, they won't get hurt easily. For example, they should never push when others are on seesaws or swings. If someone is going to jump off some equipment, he should first look down to make sure no other kids are in the way. Of course, wearing right clothes may also help to keep safe. Clothes with strings(绳) can get caught on equipment which may hurt the kid badly.

        In short, our kids can both enjoy themselves and be safe if we are working together to improve the situation.

 根据短文内容，完成下列小题。

1.Do many kids get hurt while playing on the playground every year?

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2.What things might cause danger to the kids on the playground?

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3.Why should we teach kids how to play safely on the playground?

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4.Who need to work together to improve the situation of the playground?

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5.What's the passage mainly about?

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