(
课件网) Unit 12 Life is full of the unexpected. Section A 语法与交际 Miss Du’s morning woke up 6:00 got up 6:05 took a shower 6:10 got dressed 6:40 ate breakfast 7:00 went outside 7:30 gave me a lift(捎…一程) 7:40 arrived at school 7:50 the bell rang 8:00 now 7:00 I ate breakfast . 6:10 I took a shower. By the time I ate breakfast, 在… …之前 I had already taken a shower. Time line I took a shower 6:10 I ate breakfast 7:00 Before now 7:40 Mr. Li gave me a lift （捎…一程）. 7:35 The bus left. By the time Mr. Li gave me a lift, 在… …之前 the bus had already left. Time line Mr. Li gave me a lift. 7:40 The bus left. 7:35 Before now 8:00 The students showed up. (赶到,露面) 7:50 I arrived at school. By the time the students showed up, I had already arrived at school. Time line When The students showed up. 8:00 I arrived at school. 7:50 Tina’s terrible morning. This morning, the alarm clock didn’t go off. Tina overslept. By the time/When/Before… now The bus left. Tina got up. Time line Her brother got into the shower. She rushed outside. She left her backpack at home. She got to school. She left the key in the backpack. She got home. She got back to school. The bell rang. had gotten had rung had left had left had left 故事接龙 now 8:00 The bell rang. 7:50 I arrived at school. By the time the bell rang, I had already arrived at school. Time line When 请同学们也试一试吧！ 在时间轴上标出你的活动，并仿造句子。 By the time I ate breakfast,I had already taken a shower. 在… …之前 Before By the time Mr. Li gave me a lift,the bus had already left. Before By the time the teachers showed up,I had already arrived at school. Before Read the sentences and find out the rules. 什么是过去完成时？ 过去完成时,表示某动作或状态在过去某一时间或动作之前已经发生或完成，它表示动作发生的时间是“过去的过去”。 the past of the past past now 过去完成时的结构 过去完成时的句式结构 (1) 肯定句：主语 + had + 过去分词 + 其他. (2) 否定句：主语 + hadn’t + 过去分词 + 其他. (3) 一般疑问句：Had+ 主语 + 过去分词 + 其他 肯定回答：Yes, 主语 + had. 否定回答：No, 主语 + hadn’t. Grammar Focus 规 则 动 词 的 过 去 分 词 过 去 分 词 动词分类 变化规则 e.g. 一般动词 -ed work--worked 以不发音的“e、ue”结尾 -d live--lived 以“辅音+y”结尾 变y为ied cry--cried 以“重读闭音节”结尾 双写末尾辅音-ed plan--planned A-A-A 型 不规则动词表 动词原形 过去式 过去分词 动词原形 过去式 过去分词 cut cut cut cost cost cost hurt hurt hurt hit hit hit let let let put put put read read read shut shut shut set set set A-B-B 型 不规则动词表 动词原形 过去式 过去分词 动词原形 过去式 过去分词 buy bought bought bring brought brought dream dreamt dreamt learn learnt learnt feed fed fed find found found hang hung hung have had had catch caught caught dig dug dug feel felt felt build built built A-B-C型 不规则动词表 动词原形 过去式 过去分词 动词原形 过去式 过去分词 be was/were been blow blew blown bear bore born beat beat beaten break broke broken do did done draw ... ...
