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Tim is a tall and strong boy. He's thirteen years old. He likes sports very much. His favorite sport is football. In fact, he's a super goal keeper（守门员）. He wants to be a police officer when he grows up（长大）. But it is not easy, because a police officer should stay healthy and be smart. That's why he goes running after school every day. Sometimes it's rainy, even snowy, but he still runs on the playground. A police officer should have bright（明亮的）eyes, so Tim only watches TV on Friday evening. And he doesn't play phone games. How to be a smart boy? Tim thinks there are two ways: first, study hard; second, read good books. Come on（加油）, Tim. You'll be a good police officer.