Unit12SectionA1a-1c课件 人教新目标版英语九年级全一册.pptx

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1、uTo learn the words and expressions : unexpected, by the time, backpack, oversleep, ring, give a liftuTo learn the sentences: 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.uTo learn how to narrate past events.Do you remember any

2、unexpected situation in your daily life?Look at some pictures, and imagine what happened to the girl.1a Look at the pictures. What happened to the girl?She woke up late. 醒来，苏醒醒来，苏醒She wanted to use the bathroom but someone was in the bathroom.She ran to catch the bus. 赶公交车赶公交车 The bus had just left.

3、She got to school and realized she had left her bag at home.1. By the time I got up, my brother _ already _ in the shower.2. By the time I got outside, the bus _ already _.3. When I got to school, I realized I _ _ my backpack at home.1bListen to Mary talking about her morning. Complete the sentences

4、.hadgottenhadlefthadleft I overslept. By the time I got up, my brother had already gotten in the shower. What happened?1c1cTake turns being Mary. Look at the pictures above and talk about what happened this morning. By the time I By the time I gotgot up, my mother up, my mother hadhad already alread

5、y cookedcooked breakfast. breakfast.A. What happened?B: I overslept.By the time Tina By the time Tina gotgot outside outside，the bus the bus hadhad already already leftleft. .get outsideleaveBy the time the policeman By the time the policeman gotgot to to the shop, the thief the shop, the thief hadh

6、ad run run away.away.A: What happened?B: The thief ran away. By the time I By the time I walkedwalked into class, the into class, the teacher teacher hadhad already already startedstarted teaching. teaching.walk intowalk intostart teachingstart teaching通过刚才的听力训练，总结一下。（1）By the time I got up, my brot

7、her had already gotten in the shower. By the time I got outside, the bus had already left. When I got to the school, I realized I had left my backpack at home. 这三句话是什么时态的句子这三句话是什么时态的句子?_（2）过去完成时表示在过去某个时间过去完成时表示在过去某个时间,或动作之前或动作之前 已经发生或完成的动作。即已经发生或完成的动作。即“_”。 结构为结构为：_ （3）by the time 意思是意思是 _, = when,

8、后接后接过去时过去时的句子时的句子时, 主语的谓语动词用主语的谓语动词用_。过去的过去过去的过去过去完成时过去完成时had +过去分词过去分词在在 时时候候过去完成时过去完成时过去完成时过去完成时1. 构成构成: had +V-p.p2. 过去完成时态的含义过去完成时态的含义: 主要是表示在过去某个时间主要是表示在过去某个时间,或是动作或是动作 之前已经发生或完成的动作之前已经发生或完成的动作.也就是：也就是： 过去的过去过去的过去过去完成时态的过去完成时态的用法：用法：1、表示过去的过去，通常由、表示过去的过去，通常由when或或by引导的短语或者从句做时间状语或时引导的短语或者从句做时间状

9、语或时间状语从句间状语从句(从句用一般过去时）从句用一般过去时） By the end of last year, I had learned about one thousand English words. By the time he was twenty, he had won about ten medals. When I got there, they had already left.2、常用在宾语从句中、常用在宾语从句中 He told me he had already finished his homework. I realized he had fooled me a

10、gain.3、体现在上下文中、体现在上下文中 I didnt go to the movies yesterday because I had seen it twice.1. By the time I got up, my brother had already by the time 在在以前以前By the time he returned home, the rain had stopped. 等他回到家时，雨已经停了。等他回到家时，雨已经停了。by the time是一个介词短语，在句是一个介词短语，在句中经常中经常起连词作用，引起连词作用，引导时间状语从句导时间状语从句。当。当从

11、句用一般过去时，主句用过去完从句用一般过去时，主句用过去完成时成时.By the time he was ten, Tom hadbuilt a chemistry lab himself. 等到了十岁的时候，汤姆已自己建了一个化学实验室。等到了十岁的时候，汤姆已自己建了一个化学实验室。 1.By the time Jack returned home from England, his son _ from college. A. graduated B. has graduated C. had been D. had graduated 解析：解析： Jack从英国回到家时，从英国回到家

12、时， 他的儿子已经大学毕他的儿子已经大学毕业了。回家用了一般过去时，业了。回家用了一般过去时， 大学毕业发生在过去大学毕业发生在过去的过去，故用过去完成时。的过去，故用过去完成时。D 2.By the time I was five, I _ English. Really? A. had started learning B. have started learning C. started to learn D. started learning 【答案答案】 A【解析解析】by the time所引导的从句是一般过去时，所引导的从句是一般过去时，其主句要用过去完成时。其主句要用过去完成时

13、。A 3.By the end of last year, we _ about 2000 English words. A. were learning B. have learnt C. learnt D. had learnt 【解析解析】由时间状语由时间状语By the end of last year可知应可知应用过去完成时，即用过去完成时，即“had+过去分词过去分词”。正确答案。正确答案是是D。 D我都 学会了!本课句型 By the time:到时候为止；当时候（when) Leave sth at/in/on s.p把落在 Oversleep(overslept ,overs

14、lept,oversleeping):sleep longer than intended 常见动词及过去式和过去分词 Get -got-gotten. run-ran-run Start-started-started.gowentgone Walkwalkedwalked.leaveleft-left一、根据一、根据句意和汉语提示，填写单词。句意和汉语提示，填写单词。1. There will be an _ (意外的）意外的） surprise.2. The children _ (冲，奔冲，奔) out of the school when the bell rang. 3. Yest

15、erday the girl _ (违反违反) the rule and her teacher was angry.4. When I was about to read my book, I found I _ (忘了带忘了带) it at home.unexpectedrushedbrokehad left二二、单项单项选择。选择。( )1.By the time we got to the station, the train _ already _.A. had; leave B. had; leftC. have; left D. had; leavedB( )2.He asked me _ unexpected question yesterday and I didnt know how to answer it.A.a B.an C.the D./( )3.On weekends, the supermarket is _ people.A.full with B.filled of C.full of D.fill withBC Write a passage about your unexpected story and share it with your friends.