题目内容
3.It is said that onethird (three) of the water around the world is polluted.分析 据说世界上三分之一的水都被污染了.
解答 答案:third.
根据It is said that one--(three) of the water around the world is polluted,可知据说世界上三分之一的水都被污染了,这里考查分数的表达法: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.句子中one是分子,是1,所以后面的序数词应该用单数形式.故填third.
点评 本题考查用所给单词的适当形式填空,首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变化.
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