1. 表示月份的词在任何情况下都要大写!January (Jan.) 一月;February (Feb.) 二月;March (Mar.) 三月; April (Apr.) 四月;May (may.)五月;June(Jun.)六月;July(Jul.)七月;August(Aug.)八月;September(Sept. / Sep.)九月;October(Oct.)十月;November(Nov.)十一月;December(Dec.)十二月A is the fourth month of the year.2. 基数词变序数词口诀:基变序,有规律,词尾大多加上th。一、二、三,特殊记,first, second, third;八去t,九去e,ve要用f替 (eighteighth, nineninth, fivefifth, twelvetwelfth)遇到整十来结尾,一定将y变ie再加th; (twentytwentieth, thirtythirtieth)若是碰上几十几,只变个位就可以 (twenty-o