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1、Unit 12,Unit 12,Unit 12,Life is full of the unexpected.,Unit 12 Life is full of the un,人教版九年级英语Unit12课件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,把下列短语翻译成英语。1. 即将,6. 迟到7. 在以前 8. (闹钟) 发出响声9. 开始做某事 10. 捎一程,be late
2、for,by the time,go off,start doing sth.,give sb. a lift,6. 迟到be late forby the time go,1. To learn to understand the use of Past perfect tense2. To be able to write sentences using by the time or before,1. To learn to understand the,What happened to you on a bad morning?,First, I had slept when the
3、clock went off. Then by the time I had breakfast, I had hurt my hand with a knife. Before I went to school, I had gone to the doctor.,What happened to you First, I,过去完成时的构成：肯定式为：助动词had+过去分词否定式为：had not+过去分词 had not缩写为hadnt,过去完成时,过去完成时的构成：过去完成时,过去完成时的用法：1) 表示一个动作或状态在过去某一时间或动作之前已经完成，发生在“过去的过去”。这个过去的时间
4、可以用by，before等介词短语或者一个时间状语从句来表示。 e.g. When I woke up, it had stopped raining. (翻译) 我醒来时，雨已经停了。,过去完成时的用法：,2) 表示某一动作或状态在过去某时之前已经开始，一直延续到这一过去的时间。常用表延续的时间状语如： by the end of+ 过去的时间点，by the time +从句等。 e.g. By the end of last year, she had worked in the factory for twenty years. (翻译) 到去年年底，她已经在这家工厂工作 20年了。,
5、2) 表示某一动作或状态在过去某时之前已经开始，一直延续到这,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。,1)当我到达学校的时候，我才意识到我把书包忘在家里了。Whe,3) 我到达公共汽车站之前， 汽车已经离开了。 Before I _ _ t
6、he bus stop, the bus _ _ _.4) 我决定先买一杯咖啡，然后再去办公室。 I _ _ _ go up to my office when I decided to get a coffee first.,got to,had,already left,was about to,3) 我到达公共汽车站之前， 汽车已经离开了。got,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 lou
7、d sound,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,Notes：1. 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。2. 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，when有时可省略。,Notes：,现在完成时与过去完成时的区别：现在完成时表示的动作发生在说话之前某个没有明确说出的过去时间，侧重过去发生的动作对现在产生的影响或造成的结果，与现在有关；过去完成时的动作发生在“过去的过
8、去”，它是一个相对的时态，不能离开过去的时间而独立存在。,现在完成时与过去完成时的区别：,e.g. We have learned 1,000 English words so far. We had learned 1,000 English words by then.,e.g. We have learned 1,000 Eng,1. The world is changing with every second; and China, too, _with every second. is changing B. had changed C. changed,1. The world
9、is changing with,2. I ate some fruit, which I _ since I was a child, and the vegetables from my garden. have enjoyed B. enjoyedC. enjoy D. had enjoyed3. He _ his English teacher when he was sightseeing in Paris. has metB. had metC. met D. would meet,2. I ate some fruit, which I _,4. Why wont we play
10、 basketball with Class 4 this afternoon? Because they _ Longzhong for a study trip. A. have gone to B. have been to C. had gone to D. had been to,4. Why wont we play basketba,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 a
11、lready gone into the bathroom.2. The coffee became cold. I put cream (n. 奶油) in the coffee. _ _,Before I could put cream in the coffee, the coffee had become cold.,4aMake sentences using by the,3. The teacher collected the math homework. I got to school. _ _4. I completed the work for my boss. The w
12、orkday (n. 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.,3. The teacher collected the m,5. The movie started. I arrived at the cinema. _ _6. My mother finished making the apple pie. I got home
13、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 mother had finished making the apple pie.,5. The movie started. I arrive,4b,Fill in the blanks with the correct forms of the words in the box.,1. By the time I arri
14、ved at the party, everyone else _ already _.2. When he put the noodles 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,shown up,had,had forgotten,4bFill in the blanks with the,3. By the time my mother came back from the mar
15、ket (n. 市场), I _ already _ of the door to go to my piano lesson.4. Before she got to the airport, she _ about the earthquake.,had,rushed out,had found out,rush out, forget, arrive at, go into, show up (赶到；露面), find out,3. By the time my mother came,5. When she _ the movie theater, she remembered she
16、 had forgotten to feed her dog.6. Before she got a chance to say goodbye, he _ the building.,arrived at,had gone into,rush out, forget, arrive at, go into, show up (赶到；露面), find out,5. When she _ the movi,4c,Write two true statements and one false statement about your day yesterday. Then ask your cl
17、assmates to guess the false statement.,1. By the time I left for school in the morning, _ _ _,I had already had breakfast.,I had already brushed my teeth.,I had already finished my homework.,4cWrite two true statements an,2. By the end of the school day, _3. By dinner time, I_I_I_,I have got a prese
18、nt from Tom.,I had had these articles read.,I had finished my homework.,had had too many apples.,had eaten plenty of meat.,had all the housework finished.,2. By the end of the school da,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。,1.
19、过去完成时的构成：_+_h,句型When I got to school, I realized that I had 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.,show upby the end of,露面；赶到在(某时间点)以前,句型show up露面；赶到,I was about to go up to my office when I decided to get
20、a coffee first.As I was waiting in line with the other office workers, I heard a loud sound.,I was about to go up to my off,根据短文内容及括号内所给动词的提示，用正确的时态或语态补全短文，使短文完整、通顺。A cow and a fox went out to search for food together. They (1)_(go) only a few miles before they saw a lion coming their way. They were
21、 both very scared. The fox thought of a way to save his own life, and went up to the lion and said in his ear,had gone,根据短文内容及括号内所给动词的提示，用正确的时态或语态补全短,“I (2)_(help) you catch the cow without the trouble of hunting (猎杀) him, if you let me go free.” The lion agreed, and the fox then led the cow to a hi
22、dden pit (深坑), which some hunters (3)_(dig) as a trap (陷阱) for wild animals, and the cow fell into it. When the lion saw that the cow (4)_(catch) and couldnt get away, he turned his attention to the fox. He soon killed him, and then went on to eat the cow.Betray (背叛) a friend, and youll often find y
23、ou have ruined (毁灭) yourself.,will help,had dug,had been caught,“I (2)_(help) you catc,1. 复习Grammar Focus 中的内容。 Try to make sentences with before, by the time and be doing when, and you can use the past perfect tense in your sentences.2. Preview 1a-2a on page 93.,1. 复习Grammar Focus 中的内容。,人教版九年级英语Unit12课件Section-A-3(Grammar-focus-4c),
