1、Unit 12 Life is full of the unexpected.,Section A 2d 4a-4c,Warming up,Do you remember any unexpected situation in your daily life?,I was late for work today. When I _up, I found my clock_. It was 7:30.,got,had rung,When I _out, I found the bus _already_.,went,had,left,过去完成时,(1) 构成：由“助动词had(用于各种人称和数)
2、 + 过去分词”构成否定式：had not + 过去分词 缩写形式：hadnt (2) 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动作。,(3) 它所表示动作发生的时间是“过去的过去”。 表示过去某一时间可用by, before 等构成的短语来表示。 也可以用when, before 等引导的时间状语从句来表示。 还可以通过状语从句或通过上下文暗示。,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。 By the time he got here, the bus had left
3、. 在他到达那里之前，汽车已经离开了。,1. Why was Kevin late for class? 2. How did Kevin get to school?,His clock didnt go off. He overslept.,Carls dad saw him on the street and gave him a lift in his car.,2d,Read and answer.,4a,Make sentences using by the time or before.,1. Tim went into the bathroom. Mary got up.By
4、the time Mary got up, Tim had alreadygone into the bathroom. 2. The coffee became cold. I put cream (n. 奶油) in the coffee._,Before I put cream in the coffee, the coffee had become cold.,3. The teacher collected the math homework. I got to school._ 4. I completed the work for my boss. The workday (n.
5、 工作日) ended._,By the time I got to school, the teacher had collected the math homework.,I had completed the work for my boss before the workday ended.,5. The movie started. I arrived at the cinema._ 6. My mother finished making the apple pie (n. 果馅派). I got home from my language course._,The movie h
6、ad started, before I arrived at the cinema.,By the time I got home from my language course, my mother had finished making the apple pie.,4b,Fill in the blanks with the correct forms of the words in the box.,1. By the time I arrived at the party, everyone else _ already _. 2. When he put the noodles
7、into a bowl, he realized he _ to add the green beans (n. 豆).,rush out, forget, arrive at, go into, show up (赶到；露面), find out,showed up,had,had forgotten,3. By the time my mother came back from the market (n. 市场), I _ already _ the door to go for my piano lesson. 4. Before she got to the airport, she
8、 _ _ about the earthquake. 5. When she _ the movie theater, she remembered she had forgotten to feed her dog. 6. Before she got a chance to say goodbye, he _ the building.,had,rushed out,arrived at,had gone into,had found,out,4c,Write two true statements and one false statement about your day yester
9、day. Then ask your classmates to guess the false statement.,1. By the time I left for school in the morning, _,I had already had breakfast.,I had already had supper.,I had already had my hair cut.,2. By the end of the school day, _ 3. By dinner time, I_I_I_,I have got a present from Tom.,I had had these articles read.,I had finished my homework.,had had too many apples.,had eaten plenty of meat.,have had all the housework finished.,Homework,Write out the story of Mary.,THANK YOU!,
