题目

完型填空 We all need to   1 . Doctors say it is good 2   us .It      3   your heart and body strong. It also gives you more energy(体力).And you will feel   4   about yourself. It’s best to exercise  5     a week. Twenty minutes each time is  6   . There   7   many ways to exercise .You can walk, run , play sports, or swim. Many people go to special places to exercise. They are called “fitness centers”(健身中心).These places have a lot of equipment(器材) .Some people buy equipment 8    their homes. But it is very 9     . Exercising选择与所给单词对应的图示 　　tired