七年级英语上册Unit4Wheresmyschoolbag件新版人教新目标版.pptx

Unit 4Unit 4Wheres my schoolbag?Wheres my schoolbag?Section A(1a-1c)Section A(1a-1c)任务:根据图片提示填入适当的介词1.The ball is the floor.2.The hat is the chair.3.His pencils are the pencil box.4.The two girls are the tree.5.The computer is the table.on underinunderon Wheres the schoolbag?书包在哪儿?Its under the table.在桌子下面。剖析(1)这是一个由疑问副词where引导的特殊疑问句,其结构为“Where+be+主语?”,意为“在哪儿?”。其中动词be的形式要根据主语的单复数来决定,其答语是“Its/Theyre+介词短语.”。如:Where is my bike?我的自行车在哪儿?Its under the tree.在树下。Where are my books?我的书在哪儿?They are on the desk.在课桌上。(2)under prep.在的下面。如:The dog is under the table.狗在桌子的下面。拓展介词和其后面的名词或代词通常构成介词短语,在句中做表语、状语等。如:The pencil is in the pencil box.铅笔在铅笔盒里。There is a book on the desk.书桌上有一本书。