A. It is called rucking, a term from ruck marching, which is a skill that militaries around the world have long used for training.
B. Rucking involves walking with a weighted backpack. It’s an easy way to strengthen your heart and muscles without hurting the joints (关节).
C. Anyone who walked to school with a backpack full of books has already tried an exercise routine that is getting popular in the fitness world.
D. Even people eager for more exercise should progress slowly. Shoes that fit well can help you avoid additional foot pressure and safely walk on an uneven land.
E. As with any new physical activity, newcomers should start rucking with slow and stable steps. If you don’t have basic conditioning, try walking the expected distance with a very light pack first. Then slowly add more weight.
2 . Jack caught the basketball and threw it at once. The ball flew into the net. “Jack, you never miss !” Tom said excitedly. “You're a great shooter!”
“But I always fail to do it in a real game,” Jack felt upset. “I'm just not comfortable playing with strangers around me.”
Tom knew that Jack was right. Jack performed much better when he was having fun with Tom in the school yard than he did when he was playing for the school team in front of a large crowd. But Tom soon had an idea.
The next day Tom and Jack met in the school yard again to practice for the coming game. After a few minutes, Tom excused himself. “I'll be back in a minute.”
Tom hurried through the school building to search for some people.
“Hey, Jack!” Tom called out finally. Jack turned. A look of surprise came over his face. “I just wanted to show you that you could play well with people watching you,” Tom said. “Now you'll have nothing to worry about for the next game!”
| A．As Tom had hoped, Jack was still practicing basketball there. |
| B．Everyone was happy to help after Tom explained why he needed them. |
| C．Finally he found four students, a math teacher, two secretaries, and a cleaner. |
| D．He made five shoots in a row without noticing the people standing silently behind him. |
| E．Having listened to Tom’s explanations, they still felt confused about what they need to do. |
| F．Tom reminded the group to stay quiet as they all went toward the school's basketball court. |
