the students in this school is about four thousand,of them are boysA. A number of, three

发布时间:2020-08-23 10:16:57

    the students in this school is about four thousand,    of them are boys.
A. A number of, three fifth
B. The number of, three fifths
C. A number of, three fifths
D. The number of, three fifth

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A. A number of, three fifth
(答案→)B. The number of, three fifths
C. A number of, three fifths
D. The number of, three fifth
解析:此题考查分数的表示方法。分数在英语中通常是借助于基数词和序数词来共同表达的。其中基数词表示分子,序数词表示分母。分子超过1,分母要加s.分数修饰名词时,若该名词是不可数名词只能用单数;若是可数名词,用单数或复数均可。但是,若它们在句子中作主语,则谓语动词是用单数还是复数取决于名词,即与分数所修饰的名词保持一致。根据语境可知此句的含义是这所学校的学生大约有四百人,其中五分之三的是男生。表示…的数量要用名词短语the number of,五分之三要用three fifths, 故选B。
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