北师大版(一起)一上《unit 3 at school》ppt课件3[www.edudown.net].ppt

1A 3U,At school,a pencil,a pencil,a book,a bag,a chair,Is it a .?Yes. (No.),Is it a .?Yes. (No.),Is it a .?Yes. (No.),Is it a .?Yes. (No.),Is it a .?Yes. (No.),Is it a .?Yes. (No.),Is it a .?Yes. (No.),Take out your book.,Open your book,Close your book.,Put it in your bag.,