.Unit7 Topic 1(一)核心词汇:birthday, May, celebrate, party, fourth, fifth, sixth, seventh, eighth, ninth, tenth, twelfth, twentieth, date, January, March, April, June, July, August, September, October, November, December, alone, were, born, was, thousand, present, shape, hill, square, circle, ago, machine, football, special, candle, surprise.(二)常用词组:1. plan to do sth. 计划做某事 2. be born 出生 3. have a look 看一看 4. just now 刚才 5. use sth. for / to 用某