Unit 8 Big bird!Lesson 1教学内容:Structures: (He) is a (tall boy).(He’s) not a (short boy).Vocabulary:Core: happy, tall, short, big, small, young, old, good, bad, a girl, a boy, animal, a bird a turtle, a treeContextual: a peacock, You’re welcome. Beautiful, forest教学目标:掌握形容人或物大小、长短、好坏等形容词。教学重点:正确运用句型:(He) is a ( tall boy). (He’s) not a (short boy).教学难点:is, isn’t的运用。教具准备:本单元的学习卡片;教..