题目内容
1.Peter and his wife live on theseventh/7th(seven) floor and they go up and down by lift.分析 Peter和他的妻子住在七楼并且他们乘电梯上下楼.
解答 答案:seventh/7th 根据live on the…floor中的floor,可知楼层为单数形式.且前面有定冠词the.所给词为基数词seven,基数词(大于一)后要接名词的复数形式.故此空不可以填基数词.数词除了基数词外还有序数词,序数词前要加the,且后面接名词的单数形式.符合题目中的条件,故此处需填序数词seventh或7th.故答案为seventh/7th
点评 本题考查数词.数词分为基数词和序数词.看到所给词,要能联想出其变化形式.然后根据句子中的关键词,判断正确的答案.
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