题目内容
4．In order to make our city more beautiful，we have planted _______ trees these years in Yiyang．（ ）| A． | three thousands | B． | thousand of | C． | thousands of |
分析 为了使我们城市变得更美丽，这几年我们已经在益阳栽了成千上万棵树．
解答 答案：C．
根据题干结合选项判断句意是"为了使我们城市变得更美丽，这几年我们已经在益阳栽了成千上万棵树．"thousand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．故选C．
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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