题目内容

It’s said that ______ of the water around the world ______ polluted.
A．two third; hasB．two thirds; have
C．two third; areD．two thirds; is
D
英语中一般用基数词表示分数的分子，用序数词表示分数的分母。当分子是一时，分数的分母用单数形式，在表示分数时，当分数的分子大于一时，分数的分母要用复数形式。由分数修饰的主语后面谓语动词的数，和被修饰主语的单复数保持一致。句意：据说世界上三分之二的水都被污染了。选项AC分数结构有误。Water是不可数名词，故谓语动词用单数，选D。
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