There are seven days in a week,lesson 20,key words,week 星期，周day 白天，一天Sunday 星期日,Just speak,Hi,everyone! lets play a chain game!Great!How many days are there in a week?一个周有几天？There are seven days in a week.一周有七天。,What are they? 他们是什么？,They are Sunday. 星期天 Monday 星期一Thusday 星期二Wednesday 星期三Thursday 星期四Friday 星期五and Saturday 星期六,lesson 20,Today 今天Monday 星期一Tuesday 星期二,日期 英语 简写 Monday 星期一 Mon.Thusday 星期二 Tue.Wednesday 星期三 Wed.Thursday 星期四 Thur. Friday 星期五 Fri. Saturday 星期六 Sat. Sunday 星期天 Sun.,
