“If exercise were medicine（药）, we would all take it,” Shelton, a doctor from Australia once said.
However, according to the WHO（世界卫生组织）, 80% of the children in the world don’t get enough exercise. The WHO thinks that sixty minutes of exercise a day is necessary for children’s growth（成长）. Exercise is good for the heart and lungs（肺）. Also, children will not become fat if they often exercise. And more and more study is showing that exercise can help to lift spirits（振奋精神）and think clearly.
WHO advises（建议）schools and families to ask children to do more exercise. They can do 20 minutes of exercise three times a day to get 60 minutes of exercise. However, it’s not easy. Now many children are difficult to stay away from smartphones or computers. In their free time, they seem to do only three things: eating, sleeping and going online. They’re interested in talking with friends online or playing online games instead of（而不是）doing exercise. The WHO advises that schools and families should think of ways to help children spend less time in the online world and more time in the real world.
【小题1】What does the underlined sentence mean（划线句子是什么意思）?
| A．Exercise can treat illnesses（治病）. |
| B．Exercise is important and people should exercise. |
| C．If people don’t exercise, they will fall ill（生病）. |
| D．If we take medicine, we don’t need to exercise. |
【小题2】How many minutes should the children exercise every day?
【小题3】The last paragraph（段落）tells us that it’s difficult to let the children stay away from ________.
| A．the Internet | B．exercise | C．sleeping | D．eating |
【小题4】Which one is TRUE according to the passage?
| A．WHO advises children to do at least two hours’ exercise every day. |
| B．Exercise can make children fat. |
| C．Most children spend less time if the online world. |
| D．Exercise is good for both the body and the mind. |
