题目内容
7.About____ of the earth covered with water,but we have less and less available fresh water.( )A. | three-fourth,is | B. | three-fourths,is | ||
C. | three-fourth,are | D. | three-fourths,are |
分析 地球大约四分之三被水覆盖.但是我们可用的淡水越来越少.
解答 分数的表达:分子用基数词,分母用序数词,当分子大于1时,分母应加"s".根据语境,这里主语为单数概念,根据主谓一致原则,谓语动词也应用第三人称单数,故选B.
点评 此题考查分数的表达法及主谓一致原则.分数的表达:分子用基数词,分母用序数词,当分子大于1时,分母应加"s".
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