Unit 4 Where is my schoolbag? 话题谈论物品所在的位置。功能通过询问物品的位置，学习一些有关家居物品和学习用品的单词，以及方位介词in, on, under, behind 等的用法；学习并掌握Where问句的问答，一般疑问句提问并用方位介词来回答；学习名词单复数及人称代词they 的用法.重点词汇table, bed, dresser, bookcase, sofa, chair, drawer, plant, bag, alarm clock CD, video, video cassette, hat, in, on, under, behind, in front of, near Where they重点短语in front of bringto. taketo重点句型Where is/ are?-It is / They are ?-Is it ? Are they?-Yes, / No, 语法1.方位介词: in, on, under, be
