Unit 12 Life is full of the unexpected.Section A 1 (1a-2d)一、教学目标: 1. 语言知识目标:1) 能掌握以下单词及短语:unexpected, by the time, backpack, oversleep, ring, give …a lift, 2)掌握 By the time I got outside, the bus had already left. When I got to school, I realized I had left...