题目内容
5．Tu Youyou became the first Chinese to win a Nobel Prize in science in hereighties（八十）．分析 屠呦呦在八十多岁时成为获得诺贝尔科学奖的第一个中国人．
解答 答案：eighties
联系语境并根据关键词 in her…结合提示汉语"八十"可知此处应用固定短语in one's+基数词的复数，指在某人几十多岁时；"八十"的基数词为eighty，复数为eighties，in her eighties指在她八十多岁时，此句是指：屠呦呦在八十多岁时成为获得诺贝尔科学奖的第一个中国人．故填：eighties
点评 此题考查数词的表达．做此题要联系固定短语的表达确定出基数词正确的形式，从而做出相应的变化．
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