2．Beingpunctual （準時） for class and obeying the school regulations are essential for students．

分析 準時上課和遵守學校規(guī)章制度對學生來說很重要．

解答 72．punctual    punctual是一個形容詞，意為"準時的"，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，寫此類題目時應注意詞性的修飾．

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