The World Health Organization (WHO) says that 80% of the world’s teenagers don’t get enough exercise to live healthy lives. It did research (研究) on students aged from 11 to 17 in 146 countries for about eight years and got the result.
Doctors say 60 minutes of exercise a day is important for teenagers to build up their strength (力量). It’s also good for the heart and lungs (心肺). Also, teenagers won’t become fat through exercise. What’s more, more and more research is showing that exercise doesn’t just help with the body. It can help with the mind too—making people think better and helping students get good grades.
Trevor Shilton working for the Heart Foundation in Australia says that doing exercise is really important, and he also says: “If this were a medicine, we would all take it.”
However, it’s not easy. Now many teenagers find it very difficult to stay away from smartphones, computers or televisions. In their free time, they talk with friends online, play online games and watch interesting TV programs. The WHO says that young people need to play less in the online world and play more in the real world.
Health experts want schools and families to ask teenagers to do more exercise. Doctors also say that teens can do 20 minutes of exercise three times a day to get 60 minutes of exercise. They say it’s very important for young people to do exercise, because it will be good for their lives in the future.
31. What’s the main idea of the second paragraph?
A.What kind of exercise teenagers should do. |
B.How much exercise teenagers should do. |
C.Why doing exercise is important. |
32. What does the underlined word “
this” mean?
A.Having a healthy heart. |
B.Doing exercise. |
C.Thinking better. |
33. Why do many teenagers NOT do enough exercise according to the passage?
A.Because they are always busy with their studies. |
B.Because they think they are healthy. |
C.Because they spend much time doing things online. |
34. What can we learn from the passage?
A.The WHO got the result with the help of 116 students. |
B.Teenagers don’t have to do 60 minutes of exercise in one go. |
C.Doctors think five hours of exercise a week is enough. |
35. In which column (栏目) of a newspaper can we read this passage?
A.Health. | B.Vacation. | C.Science. |