人教版九年级英语12单元第一课时ppt课件.ppt

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 1.Do you like mornings? 2.2. What do you usually do in the morning? Leading inWhat do you usually do in the morning?Have you ever slept ?Have you ever been late for school ?1a1a1a1a1a1aLook at the pictures. What happened to the girl? She got up late. She overslept.Tell a storyoversleep (overslept, overslept)v. 睡过头；睡得太久睡过头；睡得太久复合词中的复合词中的over常有常有“过于过于……”之意之意Don’t oversleep, Dean! You are to be late.迪恩，别睡过头了！你要迟到了。

迪恩，别睡过头了！你要迟到了By the time she got up, her brother had already gotten in the shower.She wanted to use the bathroom but someone was in the bathroom.到到……时为止，在时为止，在……以前以前She ran quickly to catch the bus.By the time she got outside, the bus had already left.The bus had just left.leave-left-left 分开分开 leave sth. + 地点地点 把把...遗忘在忘在...What happened to her?She got to school and realized she had left her bag at home.What happened to her?She got to school and realized she had left her backpack at home.n. 背包；旅行包1b.Listen to Mary talking about her morning. Complete the sentences.had1.By the time I got up, my brother ______ 2. already _______ in the shower.3.By the time I got outside, the bus _____ already _______.4.When I got to school, I realized I _____ ______ my backpack at home.gottenhadlefthadleft2a Listen to Mary continue her story. Number the pictures in the correct order.13242b.Fill in the blanks with the correct forms of the verbs in brackets.1. When I _________ (get) home, I realized I __________ (leave) my keys in the backpack.2. By the time I _____ (get) back to school, the bell __________ (ring).3. By the time I _______ (walk) into class, the teacher __________ (start) teaching already.gothad leftgothad rungwalkedhad started过去完成时过去完成时(1) 构成：由构成：由“助动词助动词had(用于各种人称用于各种人称和数和数) + 过去分词〞构成过去分词〞构成 否定式：否定式：had not + 过去分词过去分词 缩写形式：缩写形式：hadn’t (2) 用法：过去完成时表示在过去某一用法：过去完成时表示在过去某一时间或动作之前已经发生或完成了的时间或动作之前已经发生或完成了的动作。

动作3) 它所表示动作发生的时间是它所表示动作发生的时间是 “过去过去 的过去的过去”例如：例如：When I got there, you had already eaten your meal. 当我到达那里时，你已经开始吃了当我到达那里时，你已经开始吃了By the time he got here, the bus had left. 在他到达那里之前，汽车已经离开了在他到达那里之前，汽车已经离开了 first first当当......时时“到到…的的时候候”, 相当于相当于 when , 后接后接过去去时的句子的句子时, 主句的主句的谓语动词用用过去完成去完成时态.now9:00pm8:00pmMy little brother went to bedI got homeBy the time I got home, my little brother had gone to bed动作发生在前，用过去完成时；动作发生在前，用过去完成时；发生在后，发生在后， 用一般过去时用一般过去时the policeman got to the shopthe thief ran away When the policeman got to the shop, the thief had run away.过去的过去过去的过去过去过去用所给动词的适当形式填空。

用所给动词的适当形式填空1.By the time I got up, my mother _____ already _______ (cook) breakfast yesterday morning.2.When Jack got home, his sister _____ already ________ ( wash) the clothes.3. The film_____ already ______(start),when we got to the cinema.had cooked hadwashed had started(2019(2019··甘肃天水甘肃天水)By the time we got to )By the time we got to the station, the train ____ already the station, the train ____ already ____.____.A. had; leave B. had; A. had; leave B. had; leftleftC. have; left D. had; C. have; left D. had; leavedleaved中考链接 Boverslepttook a shower went outside ran to schoolleft her backpackleft her keys in the backpack ran back to school walked into class started teachingDescribe each picture. Retell Mary’s bad day. Homework What do you think happened after Mary was late for class? Talk to your partner and then make up an ending for this story.。