【題目】We have_________ classes today and the_________ class is science.

A.six; fiveB.six; fifthC.sixth; five

【答案】B

【解析】

句意:我們今天有六節(jié)課,第五節(jié)是科學(xué)課。

考查數(shù)詞辨析。此句是and連接的并列句。根據(jù)前一分句句意可知今天有六節(jié)課,強(qiáng)調(diào)上課的數(shù)量,故第一空用基數(shù)詞six,排除C。根據(jù)后一分句句意可知第五節(jié)是科學(xué)課,強(qiáng)調(diào)課程的順序,故第二空用序數(shù)詞fifth,且序數(shù)詞一般與定冠詞the連用。故選B。

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