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Unit 12Life is full of the unexpected.Section A (1a-2b)学习目标： 1.会背单词：unexpected oversleep realize get-got-gotten 2.会使用短语：leave sth.+ 地点 （把某物遗忘在某地） 3.掌握过去完成时的肯定，否定结构; 以及由by the time 和 when 引导的时间状语从句中的过去完成时 的用法 Leading inDo you like mornings? 2. What do you usually do in the morning?What do you usually do in the morning?Have you ever slept ?Have you ever been late for school ?1aLook at the pictures. What happened to the girl? Tell a storyShe got up late. She overslept.oversleep (overslept, overslept)v. 睡过头；睡得太久复合词中的over常有“过于……”之意Don’t oversleep, Dean! You are to be late.迪恩，别睡过头了！你要迟到了。She wanted to use the bathroom but someone was in the bathroom.到……时为止，在……以前By the time she got up, her brother had already gotten in the shower.She ran quickly to catch the bus.The bus had just left.By the time