话题引入-图片猜测-回答问题-处理文字的信息
话题引入-图片猜测-回答问题-处理文字的信息
信封上的问题，对答案进行预测
quiz time
Which country are they from?
How long can they be off school?
who can be off school?
What do they do in this period of time?
解释volunteer,
find the missing children,catch the bad people, make new things, find out the illness
read and listen
