Unit 8知识点总结一、 重点短语Happy birthday!how oldin Augustsee youEnglish testschool tripbasketball gameaart festivalhave an English partySchool DaySports DayChildren’s DayWomen’s Dayhave a good timethis afternoonthis termnext monthin the morning/afternoon/eveningin Septemberon September 2ndat 8:00二、 重点语法1. 序数词(1) 构成基变序，有规律，词尾加上th一二三 特殊记(first，second，third),八加h(eighth), 九减e(ninth)ve要用f替(five-fifth；twelve-twelfth)把y变为i和e，(twenty-twentieth，thirty-thirtieth) 最后加上-th，若是第几十几，前为基，后为序twenty-one---twenty-first, twenty-four---twenty-fourth)(2) 用法①序数词前一般要加定冠词the表示顺序，但是当前面已经有形代等修饰时，则不能在加the；②序数词常用缩写形式，“阿拉伯数字+个位序数词的后两个字母”: 1st,2nd,3rd,11th,12th,13th,21st,22nd,23rd,31st...③序数词可表示日期“几月几日”中的“几日” October 1st2. 关于时间的介词inin+月份in January,in April...onon+月份+日期on January 23rd, on April 11th...atat+小时at 3:00 am,at 6:00 in the afternoon...3. 重点句型(1)询问时间When is your/his/her birthday?It’s on February 12th.On February 12th.When is the school trip?It’s on October 12th.On October 12th.(2)询问年龄How old are you?I’m 12 (years old).12 (years old).How old is he/sh/your mother?She’s/He’s 13 (years old).13 (years old).。