_______of the class_______ finished the homework already.
A.Two third, hasB.Two thirds, have
C.Two thirds, hasD.Second threes, have
B

試題分析:英語中一般用基數(shù)詞表示分?jǐn)?shù)的分子,用序數(shù)詞表示分?jǐn)?shù)的分母。當(dāng)分子是一時(shí),分?jǐn)?shù)的分母用單數(shù)形式,在表示分?jǐn)?shù)時(shí),當(dāng)分?jǐn)?shù)的分子大于一時(shí),分?jǐn)?shù)的分母要用復(fù)數(shù)形式。句意:這個(gè)班的三分之二的人影完成了作業(yè)。根據(jù)分析可知選項(xiàng)AD結(jié)構(gòu)有誤,本句主語the class為單數(shù)形式,故選B。
點(diǎn)評:英語分?jǐn)?shù)的表達(dá)規(guī)則比較固定,學(xué)習(xí)中應(yīng)牢記這些基本規(guī)則。需注意的是,當(dāng)句子主語被分?jǐn)?shù)修飾時(shí),謂語動詞和被修飾主語的單復(fù)數(shù)保持一致。
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