题目内容：

    Children know that summer is probably the most fun of all seasons. However, experts say it is also the most dangerous, especially for children aged 14 and under. In its first study of children's safety in the US, the National Safe Kids Campaign (NSKC) found nearly half of the injury-related (与伤害相关的)deaths among children happened in summer.

Experts are not surprised by the study's results. They always know summer is a dangerous season for children. During the summer, children are out of school and spend more time outdoors. They are more likely to get into an accident or be injured. "While we encourage children to be active and spend more time outdoors, they need to understand the importance of safety." said Everett Koop, an expert of the NSKC.

To help children stay safe, the NSKC started a "Make it a Safe Kids Summer" campaign during National Safe Kids Week, from 5th May through 12th May, Here are some important summer safety tips from the NSKC.

●Always wear your seat belt when in a car.

●Make sure there is an adult around when you decide to go swimming.

●Wear a lifejacket when on a boat or doing water sports.

●Obey all traffic rules.

●Don't meet e-pals alone.

1.Which season is the most dangerous for children aged 14 and under?

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2.Are experts surprised by the study's result?

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3.What do children need to understand if we encourage them to spend more time outdoors?

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4.How many summer safety tips are mentioned in the passage?

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5.What's the purpose of this passage?

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