What's the most popular school activity among American students? The{#blank#}1{#/blank#}  is the school dance. Most American high schools have at least two dances {#blank#}2{#/blank#}  the year, one in winter and the other in spring. Students attend these events {#blank#}3{#/blank#}  it's a great opportunity for them to meet {#blank#}4{#/blank#}  friends.
     At the dance, there will be snacks and photo booths (机器拍照亭), as well as strict（严格的） rules to {#blank#}5{#/blank#}  create a healthy and enjoyable evening for all students. And all the dancers will be given a security check（安检）before they come into the dance {#blank#}6{#/blank#} . This is acceptable. But some rules may be a little bit over the top（过分). For example, a school once asked {#blank#}7{#/blank#}  students to keep a standing position while they were dancing. That {#blank#}8{#/blank#}  the students couldn't do anything freely. You'd {#blank#}9{#/blank#}  not break the rules because you'll be asked to leave there, or even worse, be placed on a do not invite list.

    Years ago, I lived in a house in a large city.  The house next door was only a few meters away from {#blank#}1{#/blank#} .  Through the window, I could often see a woman who I {#blank#}2{#/blank#} never met doing some reading in the house every afternoon.
    Several months went by, I began to notice that her window was dirty.  Everything was not very clear {#blank#}3{#/blank#}  the dirty window.  I wondered {#blank#}4{#/blank#}  the woman didn't wash her window, it really looked terrible.
    One bright morning, I decided to clean my house, {#blank#}5{#/blank#}  washing the window inside.   Late in the afternoon when 1 finished all the cleaning, I sat down by the window with a cup of coffee for a rest.  How surprising! I found that the{#blank#}6{#/blank#}  window was actually so clean that she could be {#blank#}7{#/blank#} clearly sitting by the window. That was quite an important lesson for me.  How often had I looked at  {#blank#}8{#/blank#}    through my own shortcomings  (缺点) !
    Since then, I have been used to {#blank#}9{#/blank#}  myself whether I am looking through my own dirty window.  Before I want to judge someone, I always think more than before and try to clean the dirty window so that I may see the world around me more {#blank#}10{#/blank#}  .

A Brief History of Time

    Stephen enjoyed writing books. In 1988 he{#blank#}1{#/blank#} A Brief History in Time. This book covered modem subjects on cosmology such as the big bang and black holes in terms that could be understood by the{#blank#}2{#/blank#} reader. The book became very popular selling millions of {#blank#}3{#/blank#}and remaining on the London Sunday Times best-seller list for four years. He had since written many more books{#blank#}4{#/blank#} A Briefer History in Time, On the Shoulders of Giants, and The Universe in a Nutshell.

    Many years ago, there was a family named Franklin. They lived in Boston. There were five girls and six boys in the family. On a January day in 1706 another baby was born. The boy's mother and her husband gave the boy a {#blank#}1{#/blank#} —Benjamin. Benjamin was the {#blank#}2{#/blank#} of all the children. He could read when he was five and he could write when he was seven. The next year his parents sent him to {#blank#}3{#/blank#}. At school Benjamin was good at reading and writing, but not good at math. He read all of his father's {#blank#}4{#/blank#}. And when he had money, he {#blank#}5{#/blank#} went to buy books. He liked books. They told him {#blank#}6{#/blank#} to do something. The boy liked to use his head and tried to {#blank#}7{#/blank#} ways to help people enjoy life more. For example, he tried to know if there was some way to {#blank#}8{#/blank#} farther, maybe with something on his hands or feet. Slowly a picture of swimming shoes, or paddles, grew in his {#blank#}9{#/blank#}. The paddles must be neither too{#blank#}10{#/blank#} nor too small. And they must be neither too heavy nor too light. At last he invented the paddle for swimming.