Skin-diving （轻装潜水）is a new sport today. Many people show interest in this sport. Some go under water to see beautiful scenes(景色).{#blank#}1{#/blank#}go down into deep(深的) water to take pictures of swimming fish. It is not dark under water and there are a lot of big or little fish living there. Some of them use the sand to {#blank#}2{#/blank#}their homes. If you are under water, you will find you are just in a fish village.

    There is no wind under water.{#blank#}3{#/blank#} is blue and green. During the day, there is much light. Sometimes people do not have to use a flash(闪关灯)to take {#blank#}4{#/blank#}under water.

    This sport takes you into a wonderful new world. When you are under water,{#blank#}5{#/blank#} is easy for you to carry a big stone(石头). It is{#blank#}6{#/blank#}a trip to the moon!

    Catching fish is one of the most {#blank#}7{#/blank#} parts of this sport. When fish swim nearby, you can catch them{#blank#}8{#/blank#} your hands.

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.

—Wow, another gift! What's in the box?

—I'm not sure. It {#blank#}1{#/blank#} be a pair of sports shoes.