Lesson 1,UNIT ONE WHY ARE YOU SO HAPPY,The reason（原因）why we are happy,1.Because we are back at school. 2.Because I like school. 3.Because we have new books. 4.Because books are cool. 5.Because I can play with my friends,目标一,Mood (情感,happy Im so happy. 快乐 worry Im so worried. 担心 angry She is so angry. 生气 tired He is so tired. 疲劳，累,换一个词，换一个意思,1.Why is she so angry? Because the room is messy. （乱） 2.Why is he so tired? Because he played too hard.（太猛了,目标二,Question: Whyso ? Because,目标二,说说这是什么感受,目标三,说说
