内容正文:
Period 1Section A (1a—2d)Unit 3 Is this your pencil?apencilapenabookaschoolbagadictionaryWhat’sthis?aneraserIt’sapencil.aneraserarulerapencilboxWhat’sthat?It’saneraser.pencilsschoolbagsdictionariesWhatarethese?pencilboxesThey arepencils.erasersrulerspencilboxesWhatarethose?They’reerasers.