【題目】Mr. Li's class has fifty- one students, ________ of them are girl students.

A.second-thirdsB.second-thirdC.one-thirdD.two-second

【答案】C

【解析】

句意:李老師的班級有51名學(xué)生,其中三分之一是女生。

考查分?jǐn)?shù)表達(dá)。英語中數(shù)詞表達(dá)分?jǐn)?shù)時(shí),分子一般用基數(shù)詞,分母用序數(shù)詞,而如果分子大于1時(shí),分母要變成復(fù)數(shù)形式,由此可以判斷,A/ B/ D選項(xiàng)的表達(dá)結(jié)構(gòu)都是錯(cuò)誤的,所以這里應(yīng)該選擇C選項(xiàng),故選C。

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