2．Beingpunctual （準(zhǔn)時） for class and obeying the school regulations are essential for students．

分析 準(zhǔn)時上課和遵守學(xué)校規(guī)章制度對學(xué)生來說很重要．

解答 72．punctual    punctual是一個形容詞，意為"準(zhǔn)時的"，being punctual是be的現(xiàn)在分詞形式（短語）做主語，be后面加形容詞，故填punctual．

點評 考查形容詞詞義，寫此類題目時應(yīng)注意詞性的修飾．

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