题型:阅读表达 题类:真题 难易度:普通
Fire was discovered many thousands of years ago. The first time humans saw fire was probably when a tree was destroyed by lightning(闪电). Humans soon learned how to make fire. They probably made the first fire by rubbing (摩擦)two sticks together.
Fire was very important to humans. They needed to keep warm at night. They used fire to cook food. They used fire to keep enemies and wild animals away. In some parts of the world fire was used to send messages. The Indians in America, for example, used fire to make smoke as a message. In some other countries people lit fires to warn their friends of danger.
Fire was also used to give light. Before the invention of the oil lamp(灯), humans burned sticks to get light.
One man even used fire to tell the time. He invented a candle clock. He made a candle that took exactly twelve hours to burn. Then he marked this candle in twelve equal(相等的) parts. He lit the candle and could tell the time by counting the number of parts left of the burning candle. But the candle clock did not always work well. If there was a wind blowing on the candle, it burned too quickly.
Polar bears(北极熊) are soft and lovely, but they are also very dangerous. Mark's best pal is Agee, just a big cute white polar bear! Mark is a Canadian animal trainer. He and Agee became friends when the polar bear was just about four weeks old. Now Agee is 16 years old and weighs 800 pounds. She can't live at Mark's home now, but both of them are still best friends. They always play, swim and even wrestle(摔跤) together. Agee is not only Mark's best friend, but also the world's first trained polar bear star. She has acted in some films and TV advertisements(广告) . Polar bears usually live in the freezing Arctic region(冰冷的北极地区) . Unluckily, as the weather gets warmer and warmer, there is less and less room for the polar bears to live in. And they have to find their home and have less time to find food. So these make polar bears become fewer and fewer.
Mark is a trainer from {#blank#}1{#/blank#}. He has a good friend named Agee. Agee is not a girl {#blank#}2{#/blank#}a polar bear. They became good friends when Agee was one {#blank#}3{#/blank#}old. They always play, swim and wrestle together. Agee is also a polar bear star. Most polar bears live in the freezing Arctic region. But as the weather gets warmer and warmer, it's more {#blank#}4{#/blank#}for them to find home and {#blank#}5{#/blank#}. Now polar bears become fewer and fewer. So we should work hard to protect them. |
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