题目内容
12.It is said that _________ of the water all over the world _________ polluted.( )| A. | two-third; is | B. | two-thirds; is | C. | two-thirds; are | D. | two-third; has |
分析 据说全世界三分之二的水被污染了.
解答 答案:B
根据选项及题干可知本题考查分数的表达方法和主谓一致,表示分数时,分子用基数词,分母用序数词.当分子大于一时,分母要加s.又因为"分数+of+名词"作主语时,其谓语动词要与of后面的名词在数上保持一致,从句中的主语water为不可数名词,故动词be用第三人称单数形式is,故选B
点评 本题考查分数的表达方式主谓一致.熟练掌握其规则是做题的关键.
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