Unit2 This is my sister
本单元提纲：
1. 主题功能：介绍他人，辨认人物。
2. 重点单词：sister, mot her, parents, brother, picture, photo等。
3. 重点短语：a photo of my family, in the first photo, in the next picture等。
4. 核心句型：This is my friend Jane. That’s my grandfather.
These are my brothers. Those are my parents.
Have a good day!
Here is a p icture of my family.
5 .语法结构：人称代词I/he/she/they的用法
指示代词this/that及其复数形式these/those的用法
Who引导的特殊疑问句
