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    22、

    1．A thermometer is used in the experiment for       .

          A．marking              B．measuring            C．freezing               D．timing

    2．When should the timing begin?

           A．Before you label the plain water.            B．After you finish stirring the salt water

           C．When ice starts to form on water.         D．As soon as both cups are in a freezer

    3．By doing this experiment, the writer intends to       .

           A．record the exact freezing point at which salt water turns frozen

           B．draw a conclusion that fresh and salt water freeze at the same time

           C．prove a guess that salt water is different from fresh water in freezing

           D．affect the time and temperature at which salt water freezes

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    科目：高中英语 来源：天利38套《2008全国各省市高考模拟试题汇编(大纲版)》、英语 大纲版 题型：050

    阅读理解

    (1)

    A thermometer is used in the experiment for ________．

    [　　]

    A．

    marking

    B．

    measuring

    C．

    freezing

    D．

    timing

    (2)

    When should the timing begin?

    [　　]

    A．

    Before you label the plain water．

    B．

    After you finish stirring the salt water．

    C．

    When ice starts to form on water．

    D．

    As soon as both cups are in a freezer．

    (3)

    By doing this experiment, the writer intends to ________．

    [　　]

    A．

    record the exact freezing point at which salt water turns frozen

    B．

    draw a conclusion that fresh and salt water freeze at the same time

    C．

    prove a guess that salt water is different from fresh water in freezing

    D．

    affect the time and temperature at which salt water freezes

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