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    6. It’s said that       of the water around the world       polluted.

       A. two third；has   B. two thirds；have

       C. two third；are   D. two thirds；is

    6. D

    句意:据说世界上三分之二的水被污染了。在英语中分子用基数词表示，分母用序数词表示。当分子大于一时，作分母的序数词要加-s。water是不可数名词，谓语动词用第三人称单数。故选D。

    题目来源：2016年5年中考3年模拟初中英语七年级下册沪教牛津版 > 单元检测

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