dance
[误] We'll invite you and your wife to a dance party.
[正] We'll invite you and your wife to a dancing party.
[正] We'll invite you and your wife to a dance.
[正] We 'll invite you and your wife to a ball.(美语中常用ball作为舞会。)
date
[误] He studied ten hours a date.
[正] He studied ten hour s a day.
[析] date是指具体日期。如问What's the date today? 应回答具体日期:"October 1st 1998."而day是指1日(24小时)。如What day is today? 问的是星期几,应回答"It's Sunday."
[误] Today's date is January first. 1998.
[正] Today's date is January 1, 1998.
[正] Today's date is January 1st, 1998.