The difference of bi - syllable and tri - syllable between modern chinese and ancient chinese makes the realization impossible of metrical pattern of neo - poetry 但現(xiàn)代漢語與古代漢語的根本差別,即雙音節(jié)與單音節(jié)的差別,最終促使現(xiàn)代漢語取代了古代漢語,新詩取代了古詩,使新詩固定的格律最終成為不可能。