Unit 12 Life is full of the unexpected.Unit 12 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 my backpack at home.3) 掌握过去完成时时态，结构及用法。2. 情感态度价值观目标：能学会合理安排自己的学习和生活，做到守时守信。二、教学重难点1. 教学重点：过去完成时的用法。2. 教学难点：用过去完成时叙述过去的事件。三、教学过程. Warm-up Greeting. . Lead-in Do you remember any unexpected situatio
