【正文】
unnecessary (3) it is +a +名詞+ to do... It is a pity / a pleasure / a pleasant thing / ones duty / an honor / a shame / a crime / no easy job to do It takes (sb.) some time / courage / patience to do It requires courage / patience / hard work to do *注意: probable 和 possible 均可作表語(yǔ),但possible可以用不定式作真實(shí)主語(yǔ), 而probable不能用不定式作真實(shí)主語(yǔ)。因此在句中可以做主語(yǔ)、表語(yǔ)、賓語(yǔ)、賓語(yǔ)補(bǔ)足語(yǔ)、定語(yǔ)和狀語(yǔ)。 It is probable for him to e to the meetin