题目内容
18. of his time been spent on studies every day.( )| A. | Three fourths; has | B. | Three fourths; have | ||
| C. | Third fours; has | D. | Thirds four; have |
分析 每天他的四分之三的时间都已被用在了学习上.
解答 答案:A 结合选项可知此题第一空需要用分数去表达.英语中分数的表达为:分子使用基数词,分母使用序数词,当分子大于1,分母的序数词应用复数形式;根据这一规则,四分之三应表达为three fourths,可以排除C和D;根据time一词可知它为不可数名词,由于此句为现在完成时的被动语态,其构成为has/have+动词的过去分词,所以这里助动词应该用第三人称单数形式为has.综合起来,故选A.
点评 此题考查分数的表达以及主谓一致,分数的表达一定要牢记规则;助动词要随主语的变化而变化,并注意主语的可数与不可数.
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