译林版英语之三年级知识点3A单元：Unit1 -Unit4单词：father, mother ,brother, sister, good ,morning ,afternoon, evening ,grandpa, grandma, hello ,class, goodbye ,my ,friend ,am ,are ,you, Im=I am ,yes ,no, not ,shes=she is ,too, this ,me例句：Good morning./Good afternoon./Good evening. Im Mary. Are you Mary? Yes, I am./No, Im not.She is Mary.She is my friend.He is my friend too.This is my father/mother/brother/sister/grandpa/grandma.单元：Unit5单词：Look at,T-shirt,it,its=it is,nice,sk
