Teens are not as healthy as they used to be. They are putting on weight. A recent research shows 97% of the teens need more exercise. ____46____ First, exercise can help your mind. People who get plenty of physical activity might worry less and sleep better at night. You may even learn better in school. ____47____ Physical activity can make your body strong. It can also keep you at a healthy weight. But how can teens be encouraged to do more exercise? Here are some good suggestions.
____48____ Doctors call watching TV or playing video games screen time. You should have no more than two hours of screen time a day. Then you will enjoy your life more.
____49____ Interest is the best teacher. You can choose the traditional sports, such as basketball, soccer, or baseball. Those are all great sports and if you like them, play them.
____50____ Find a friend or a family member to exercise with you. You will have more fun and it’s not easy for you to give up.
All in all, it’s necessary for teens to do more exercise.
根据短文内容，将下面方框内的句子还原到文中空白处，使短文内容完整、通顺（每个选项只能用一次）。
A. Second, exercise helps your body.
B. Step away from the screen.
C. Exercise with others together.
D. Exercise helps in two ways.
E. Find a sport you are interested in.
【文章大意】本文是一篇说明文，介绍了一些让青少年保持健康、加强锻炼的方法。
46.D【解析】根据下文First … Second …可知，此处说的是锻炼的两点好处。D选项Exercise helps in two ways“锻炼在两个方面有帮助”符合语境，故选D。
47.A【解析】根据上文Exercise helps in two ways … First …可知，此处说的是锻炼的第二点好处。A选项Second, exercise helps your body“第二，锻炼对你的身体有帮助”符合语境，故选A。
48.B【解析】根据下文Doctors call watching TV or playing video games screen time可知，本段说的是要尽量少花时间在电子屏幕前。B选项Step away from the screen“远离屏幕”符合语境，故选B。
49.E【解析】根据下文Interest is the best teacher可知，本段说的是可以根据自己的兴趣选一项运动。E选项Find a sport you are interested in“寻找一个自己感兴趣的运动”符合语境，故选E。
50.C【解析】根据Find a friend or a family member to exercise with you可知，本段说的是可以找朋友或家人一起去锻炼。C选项Exercise with others together“与他人一起锻炼”符合语境，故选C。