题目内容
18．My mother spent yuan on the computer．（ ）| A． | five thousand，three hundred and forty | |
| B． | five thousand，three hundred and forties | |
| C． | five thousands，three hundred and forty | |
| D． | five thousands，three hundreds and forty |
分析 我妈妈花了5340元买那台电脑．
解答 答案：A．
根据语境推测句意是"我妈妈花了5340元买那台电脑．"，当hundred、thousand、million前面有具体数字表示准确的数目时，后面不能加-s，当hundred，thousand等前面没有具体数词时，需要与of连用，表示不具体、不准确的数目时，词尾须加-s．本题中，表示"五千"用five thousand，排除选项C和D；表示345用three hundred and forty，故选A．
点评 中考在考查学生数词的用法时，hundred，thousand和million三词用法是考查热点．当它们前面有具体的数词修饰时，hundred，thousand和million不能加-s，当它们后面接of时，它们必须加-s．不管哪种情况，它们都是直接接名词，名词前不能有限定词．
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