:The First Period—Section A(1a－2d) Teaching Important Points 【教学重点】 Key words & phrases： unexpected，backpack，oversleep by the time；give…a lift Key sentences： 1.What happened to the girl? 2.By the time I got up，my brother had already gotten in the shower. 3.When I got to school，I realized I had left my backpack at home. 4.Before I got to the bus stop，the bus had already left. Key structure： had＋done when/before/by the time＋clause e．g.When I got home，I realized I had left my keys in the backpack. Teaching Difficult Points 【教学难点】 ★Practice the past perfect tense and the adverbial clauses with when，before，as，by the time to narrate past events. Teaching Aids 【教学工具】 A tape recorder，pictures，CAI or multimedia courseware. Teaching Steps 【教学过程】 ★Step 1 Leading in 【新课导入】 1．Greeting 2．Warming－up Get the students to review some verbs and their past forms.
