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　　Chuck Wall teaches management and human relations at Bakersfield College．He walked into class one day and told his students that their h　　1　　 was to perform one act of random(任意的)kindness．His students did not understand the assignment(任务), but the professor would not answer their questions．He e　　2　　 his students to find it out for themselves．

　　One week later, the students entered the classroom excited to s　　3　　 their stories．One student told of distributing blankets to the homeless, another had contacted a long, lost friend, and another student r　　4　　 that he had helped a dog to find its owner．Students were energized(激励)by the homework assignment and wanted other people to be kind too．W　　5　　the support of local businesses, the students made stickers to put on cars that invited people to do something k　　6　　 for others．They sold the stickers and decided to donate the money to a center for the blind –not surprising as Professor Wall is blind．Since then, s　　7　　 kindness activities have been organized in schools all over the world．Many schools organize a Random Acts of Kindness Week, a　　8　　November 13, to celebrate World Kindness Day．Some schools use each day of Random Acts of Kindness Week to performd　　9　　 kind acts, such as making a new friend, helping someone, doing community service, or raising money for a charity．Students learn to c　　10　　other people and think about how small actions can make the world a better place．

阅读理解填词。

　　Teenagers are always stressed out now．They are often too b　　1　　 to think about their diets and exercise．The truth is, healthy eating, a　　2　　 with regular exercise．Is the only way to k　　3　　 fit．

　　During your teenage years, it is important to give your body the e　　4　　 it needs．Teenager girls need about 2,200 calories(卡路里)a day and boys need a bit more．Doctors suggest 2,800 calories for teenage boys．50% of your calories should come from rice, bread, v　　5　　 and fruit．You also need to drink a lot of water, six to eight g　　6　　 a day．Enough water will improve your skin and give you healthy hair．

　　Exercise can help to make you look good, feel good and be healthy．Scientists suggest that teenagers should spend at least 30 minutes e　　7　　 every day．

　　When you exercise, your body p　　8　　 something．It makes you feel r　　9　　 and energetic．It can even help you sleep better at night and let you pay more a　　10　　 when you study．

　　Let's eat healthily and take regular exercise．