【正文】
s . Ha n d in y o u r h o m e w o rk b y e ig h t . Eat o r d rin k i n t h e c las sro o m . L o o k c lea n a n d ti d y . Brin g m o b il e p h o n e s t o sc h o o l . Be q u iet i n t h e li b ra ry . Ru n o r sh o u t in th e sc h o o l b u il d in g s . S tay o n th e p lay g ro u n d a t b re a k ti m e . T a lk lo u d ly in th e h a ll w a y s . S tan d u p w h e n a tea c h e r c o m e s in to t h e c las sro o m . F ig h t . 第四課時(shí) Section B (2a—2c) ( B ) can’t you do when you are in the school buildings?