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1、Unit 12,Life is full of the unexpected.,Section A 3 Grammar Focus-4c,把下列短语翻译成英语。,1. 即将 2. 买杯咖啡 3. 排队等候 4. 起床 5. 出去,be about to,get a coffee,wait in line,get up,get outside,Revision,6. 迟到 7. 到时候 8. 闹铃响 9. 开始做某事 10. 搭便车,be late for,by the time,go off,start doing sth.,give sb. a lift,表示过去某一时间或动作以前已经发生或
2、完成了的动作。它表示动作发生的时间是“过去的过去”。 表示发生在过去的动作对过去的某一点造成的某种影响或结果，用来指定在另一个过去行动之前就已经完成了的一个事件。,过去完成时,Finish the task,1. 过去完成时的构成：_+_ 2. 过去完成时表示： _ _ 3. 过去完成时常与_等引导的时间状语连用。,had,过去分词,when, before, by the time,过去某一时刻或动作之前已经发生或完成的动作。,e.g. 1.By nine oclock last night, we had got 200 pictures from the spaceship. 2.I h
3、ad been at the bus stop for 20 minutes when a bus finally came. 3. He said he had worked in that factory since 1949. 4. Mr. Smith died yesterday. He had been a good friend of mine.,1)当我到达学校的时候，我才意识到我把书包忘在家里了。 2)到我返回学校的时候，铃声已经响过了。,Grammar Focus,3)我到达公共汽车站之前， 汽车已经离开了。 4)我正要去办公室。这时我决定先买一杯咖啡。,5)就在我和别的工作
4、人员一起排队等候的时候，听到了一个巨大的声响。,1)当我到达学校的时候，我才意识到我把书包忘在家里了。 _ I got to school, I realized that I _ _ my backpack at home. 2)到我返回学校的时候，铃声已经响过了。 _ _ _ I got back to school, the bell _ _.,When,had,left,By the time,had rung,根据汉语提示完成句子。,Grammar Focus,3)我到达公共汽车站之前， 汽车已经离开了。 Before I _ _ the bus stop, the bus _ _
5、_. 4)我正要去办公室。这时我决定先买一杯咖啡。 I _ _ _ go up to my office when I decided to get a coffee first.,got to,had,already left,was about to,5)就在我和别的工作人员一起排队等候的时候，听到了一个巨大的声响。 As I _ _ _ _ with the other office workers, I _ _ _ _.,was waiting in line,heard a loud sound, When I got to school, I realized that I had
6、 left my backpack at home. By the time I got back to school, the bell had rung. Before I got to the bus stop, the bus had already left.,由when, by the time, before等引导时间状语从句时，若描述发生在过去的事，主句常用过去完成时(had + 过去分词)表示动作发生在过去的过去。, I was about to go up to my office when I decided to get a coffee first. As I was
7、 waiting in line with the other office workers, I heard a loud sound.,be about to do, be doing等表示即将或正在做某事时，常用when引导从句表示突然发生的动作。,Tim went into the bathroom. Mary got up.,Before I got to the bus stop, the bus had already left.,I got to the bus stop. The bus left.,By the time Mary got up, Tim had alrea
8、dy gone into the bathroom.,Tim had already gone into the bathroom by the time Mary got up.,4a,Make sentences using by the time or before.,1. Tim went into the bathroom. Mary got up. By the time Mary got up, Tim had already gone into the bathroom. 2. The coffee became cold. I put cream (n. 奶 油) in th
9、e 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. 工作日) ended. _ _,By the time I got to school, the teacher had collected the math homework.,I had completed
10、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 had started before I arrived at the cinema.,By the time I got home from my language course, my mo
11、ther had finished making the apple pie.,3. By the time my mother came back from the market (n. 市场), I _ already _ of the door to go for my piano lesson. 4. Before she got to the airport, she _ about the earthquake. 5. When she _ the movie theater, she remembered she had forgotten to feed her dog. 6.
12、 Before she got a chance to say goodbye, he _ the building.,had,rushed out,arrived at,had gone into,had found,out,rush out, forget, arrive at, go into, show up (赶到；露面), find out,1. By the time I arrived at the party, everyone else _ already _. 2. When he put the noodles into a bowl, he realized he _
13、 to add the green beans (n. 豆).,had,shown up,had forgotten,Fill in the blanks with the correct forms of the words in the box.,4b,4c,Write two true statements and one false statement about your day yesterday. 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 cleaned my room.,2. By the end of the school day, _ _ 3. By dinner time, I_ I_,I had finished my homework.,I have got a
