本课可以以旧带新，句型This is my...,who are you？都是3A学过的，通过复习再教Is this your..?this is your...,I think,who is he?就简单了。没照片一样可以操练，替换成is this your sister?No,she isn't.who is she?she is my friend就可以了

本课可以以旧带新，句型This is my...,who are you？都是3A学过的，通过复习再教Is this your..?this is your...,I think,who is he?就简单了。没照片一样可以操练，替换成is this your sister?No,she isn't.who is she?she is my friend就可以了