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    The most important use of drifting (漂流) bottles is to find ocean currents. When the position and direction of currents are known, ships can use the forward movement of a current or stay away from currents that would carry them off their course. Benjamin Franklin was one of the first to use bottles in the study of currents. He wondered why British mall ships needed a week or two longer than U.S. ships needed in order to cross the Atlantic Ocean. Franklin thought the Gulf Stream (墨西哥湾流) might explain this difference.
    Franklin talked with captains of U.S. ships. He found that they knew each turn of the Gulf Stream. They used the current in every possible way. From his talks with the captains. Franklin made his first map of the Gulf Stream. Then he checked his map by using sealed (密封的) bottles. The map that he finally made is still used, with only a few changes, today. 
    小题1: Why are drifting bottles used?
    A．To determine the position of a ship
    B．To carry message across the ocean
    C．To predict the direction of a ship.
    D．To find the direction of a current
    小题2:What led Franklin to talk with U.S. captains?
    A．U.S. ships were longer than British ones.
    B．British ships could sail the Atlantic faster than U.S. ones.
    C．U.S captains knew more about maps.
    D．U.S. ships could sail the Atlantic faster than U.S. ones.
    小题3:What did Franklin make after his talks with U.S. captains?
    A．A map of the Atlantic Ocean.B．A map of the Gulf Stream..
    C．A map of ocean currents.D．A map of his first voyage.
    小题4:What did Franklin do in order to make an exact map?
    A. He compared his own map with other maps
    B. He talked with many U.S. captains.
    C. Both B and C.
    D. He used drifting bottles to check his map.

    小题1:D
    小题1:D
    小题1:B
    小题1:B

    小题1:根据The most important use of drifting (漂流) bottles is to find ocean currents. 及下文描述，可知使用漂流瓶就是为了发现洋流的方向，故选D。
    小题1:根据第一段Benjamin Franklin was one of the first to use bottles in the study of currents. He wondered why British mall ships needed a week or two longer than U.S. ships needed in order to cross the Atlantic Ocean. 描述，可知选D。
    小题1:根据最后一段From his talks with the captains. Franklin made his first map of the Gulf Stream.描述，可知选B。
    小题1:根据最后一段Franklin talked with captains of U.S. ships.描述，可知选B。
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

    答对三题以上（含三题）才给予加分；请在完成前五部分的前提下完成该部分

    阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    科目：高中英语 来源：不详 题型：阅读理解

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    A．He wants to tell us something about “ABC”.
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    C．they were born in China but go to study in America
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