PEP小学四年级英语下册复习知识点Unit 1单词：first floor 一楼 second floor 二楼 teachers office 教师办公室 library 图书馆 playground 操场 computer room 计算机房 art room 美术教室 music room 音乐教室 next to 紧邻；在近旁 homework 作业 class 班；班级 forty 四十 way 方向Lets do:Go to the library. Read a book. 去图书馆看书Go to the teachers office. Say hello. 去教师办公室问好Go to the playground. Play football. 去操场踢足球Go to the garden. Water the flowers. 去花园浇花语音：字母组合er, water tiger sister dinner computer ruler 知识点讲解 1.介绍离自己近的事物时用this
