We all know that a good night's rest helps us stay healthy. After we sleep for 7 or 8 hours in bed and {#blank#}1{#/blank#} up next morning, our mind is better prepared to memorize and learn something.

    But what about getting a rest during the middle of the day?

    Scientists say, “Short periods of sleep, napping (小睡), may help learning and memory. Napping can help young children learn better. It can {#blank#}2{#/blank#}  help older people remember longer.”

    Take China as an example. Chinese people are used to napping after lunch.

    Recently researchers made a survey among nearly 3,000 Chinese people over 65 years old. The researchers asked them {#blank#}3{#/blank#} they napped and for how long. They found that about 60 percent of them took a nap and they napped for 60 to 90 minutes. The research shows that napping for about an hour is the best.

    However, these are the findings for those  {#blank#}4{#/blank#} the age of 65. Doctors say that napping for about an hour may be too  {#blank#}5{#/blank#} for young and healthy people. And they believe that half an hour is enough to {#blank#}6{#/blank#} young and healthy people from feeling tired. By doing so, {#blank#}7{#/blank#} will help them stay awake.

    Doctors also say, “If you have trouble falling asleep at {#blank#}8{#/blank#} , take a daytime nap for less than 45 minutes and don't nap after 3 p.m. in the afternoon.

    It was our school's yearly dancing show. I {#blank#}1{#/blank#} (be) excited that 1 was chosen by the teacher this time although I didn't have any experience of dancing for a show. I would dance in front of all the students and {#blank#}2{#/blank#} (teacher). It made me very proud.

    However, I was a bit sad {#blank#}3{#/blank#} my father had no time to watch me dance. He {#blank#}4{#/blank#} (invite) to have a business meeting. I knew that my father would surely come to my show if he could. {#blank#}5{#/blank#} (lucky), my mother and my elder sister were still coming to watch my show.

    {#blank#}6{#/blank#} the beginning of the day, I was very nervous. After changing into the dress and getting my makeup done, I felt {#blank#}7{#/blank#} (relax). Then I went on to the stage bravely. I was very glad to see my mother and sister sitting in {#blank#}8{#/blank#} second row.

    Just before the lights turned dark, I saw my father rush into the hall and take the seat beside my mother. {#blank#}9{#/blank#} a pleasant surprise it was! The sight of my father made {#blank#}10{#/blank#} (I) smile. I began dancing confidently. Soon after the show, my family came backstage to congratulate me. I was so happy and lucky to have my family's support.

—It's orange.