Four-fifths of the crop ______. A.are ruinedB.was ruinedC.were ruinedD.have been
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Four-fifths of the crop ______. A.are ruined | B.was ruined | C.were ruined | D.have been ruined |
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答案
B |
解析
试题分析:考察主谓一致。当分数百分数做句子主语的时候,谓语动词的单复数要根据分数百分数后的名词。如果名词是不可数名词孩子可数名词单数形式,谓语动词用单数,如果是可数名词复数形式,谓语动词使用复数形式。本题后面的名词the crop是可数名词单数,故谓语动词使用单数形式。故B正确。 点评:1. 单数名词(代词),不可数名词作主语时,谓语用单数形式,复数名词(代词)作主语,谓语用复数形式。 The desk is Tom’s. 这张桌子是汤姆的。 Some water is in the bottle. 一些水在瓶子里。 The students are playing football on the playground. 这些学生正在操场上踢足球。 2. many a+单数名词作主语,意义虽为“许多”,但谓语要用单数形式。 Many a student has been to Shanghai. 许多学生到过上海。 3. more than one+单数名词作主语,谓语用单数。 More than one student has ever been to Beijing. 不止一个学生曾经去过北京。 4. 表示时间,价格,重量,数目,长度,数学运算等的词或短语作主语时,这些通常作一个整体概念,谓语用单数形式。例如: Two months is a long holiday. 两个月是一个长假。 Twenty pounds isn’t so heavy. 2 0英镑并不太重。 Ten miles isn’t a long distance. 1 0英里并不是一段很长的距离。 Five minus four is one. 5减4等于1。 5. 主语是each/every+单数名词+and(each/every)+单数名词时,谓语动词用单数。 Each boy and each girl has got a seat. 每个男孩和女孩都有一个座位。 Every man and every woman is at work. 每个男人和女人都在工作。 6. one and a half+复数名词作主语,谓语动词用单数形式。 One and a half hours is enough. 一个半小时足够了。 7. 动词不定式,动名词作主语时,谓语动词用单数形式。 To see is to believe 眼见为实。 Doing eye exercises is good for your eyes. 做眼睛保健操对你的眼睛十分有益。因此在实际操练中要指导学法,掌握基本用法,注意变化就能突破 |
举一反三
---Hey! Here is a message on my cell phone, telling me to send money to the bank account… --Delete it! It"s a trick. Many a person ________ by such tricks.A.were cheated | B.have been cheated | C.has been cheated | D.was cheated |
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