人教新目标 (Go for it) 版九年级全册Section A评优课课件ppt

这是一份人教新目标 (Go for it) 版九年级全册Section A评优课课件ppt，文件包含人教新目标版英语九年级Unit12《LifeisfulloftheunexpectedSectionAGrammarfocus-4c》课件pptx、人教新目标版英语九年级Unit12《LifeisfulloftheunexpectedSectionAGrammarfocus-4c》练习含答案doc等2份课件配套教学资源，其中PPT共27页， 欢迎下载使用。
Unit12 Kife is full of the unexpectedPeriod 3 Section A Grammar focus-4c
人教新目标版英语九年级
Presentation
1.学习本课新词汇:cream，workday，show up, bean, market, by the end of2. 掌握句型：By the time I arrived at the party, everyone else had already shown up.When she arrived at the movie theater, she remembered she had forgotten to feed her dog. 3. 通过翻译Grammar focus 中的句子，完成句子，探究过去完成时的概念，用法和结构。4.通过控制性练习(4a)和自由练习(4b，4c)，能正确使用过去完成时。
Learning aims
Presentation
Pre-grammar
Look and say.
cream n. 奶油；乳脂
workday n. 工作日
show up 赶到；露面
bean n. 豆；豆荚
market n. 市场；集市
by the end of 在(某时间点)以前
New words
Presentation
Pre-grammar
Look and say.
What happened to her?
When she got to school, she realized that she had left her backpack at home.
By the time she got up, her brother had already gotten in the shower.
By the time she got outside, the bus had already left.
By the time she walked into class, the teacher had started teaching already.
Revision
Presentation
Pre-grammar
Look and say.
Have you ever been late for school?
The bell rang.
She got to school.
present
By the time _______________, the bell _________.
she got to school
had rung
present
The teacher started teaching already.
She got into the classroom.
When she___________________, the teacher __________________already.
got into the classroom
had started teaching
Warming up
Presentation
While-grammar
Read and translate.
Read the sentences and translate them.
Presentation
Pre-grammar
Look and fill.
Fill in the blanks according to grammar focus.
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 ______ _______.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 ______ _______ _______.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.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 ____ ___ ___ ____.
When
had
left
By the time
had rung
got to
had already left
was about to
was waiting in line
heard a loud sound
Practice
Presentation
Pre-grammar
What did you find out?
探究语法规律
探究一：过去完成时的结构和用法
过去完成时表示过去某一时间或动作以前已经发生或完成了的动作。它表示动作发生的时间是“过去的过去”。
过去完成时的构成：_____+___________
had
过去分词
过去完成时常与________________________等引导的时间状语连用。
when, before, by the time
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
图解语法
now
The bell rang.
8:00 AM
8:15 AM
By the time _______________, the bell _________.
had rung
Mary got to school.
参照点
过去完成时以一个过去的时间点为参照，表示该动作发生在“过去的过去”。
Mary got to school.
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
图解语法
now
The teacher started teaching in the classroom.
8:20 AM
8:22 AM
When ______________________, ______________________________________.
the teacher had started teaching in the classroom
She got into the classroom.
过去完成时以一个过去的时间点为参照，表示该动作发生在“过去的过去”。
参照点
Presentation
Pre-grammar
探究语法规律
now
The bus left.
5:20 PM
5:21 AM
Before ___________________________, _____________________.
the bus had already left
She arrived at the bus stop.
过去完成时以一个过去的时间点为参照，表示该动作发生在“过去的过去”。
参照点
探究一：过去完成时的结构和用法
图解语法
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
图解语法
Make sentences with By the time… or When…
6:30 6:40 now
the policeman get to the shop
Tom run away
By the time\When the policeman got to the shop, Tom had run away.
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
图解语法
Make sentences with By the time… or When…
Liu Mei wake up
the concert be over
By the time\When Liu Mei woke up, the concert had been over.
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
◆ 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.
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。
参照物---时间状语从句
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
by 的用法
by +时间点
“到……为止；截止……时”
by+现在时间，句子时态用现在完成时
By now, I have finished all my homework. 截止现在，我已经完成了所有的作业。
by+过去时间，句子时态用过去完成时
By nine o’clock last night, we had got 200 pictures from the spaceship. 到昨晚9点钟，我们已经收到200 张飞船发来的图片。
by+将来时间，句子时态用将来完成时
By next Friday, We will have finished Unit 5. 到下周五结束时，我们将要学完第五单元。
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
by the time 的用法
by the time 意为“到……时候(为止)”, 是一个介词短语, 在句中常起到连词的作用, 引导时间状语从句。1.如果从句中的谓语动词是一般过去时, 那么主句的谓语动词通常用过去完成时, 表示“截止到从句动作发生时, 主句动作已经完成, 即过去的过去”。
例：By the time you came back, I had finished this book. 你回来时我已经把这本书看完了。 （从句谓语动词came back 为一般过去时, 所以主句动作用过去完成时had finished, 表示过去的过去。）
2. 如果从句中的谓语动词为一般现在时或现在完成时, 那么主句中的谓语动词常用将来完成时, 表示“截止到将来的某一时刻为止, 主句动作将已完成”。
例：By the time I get home, they will have left. 我到家时他们将已经离开。By the time I graduate next year, I will have lived here for five years. 到明年毕业时, 我将已经在这待了五年了。
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
by the end of +时间点意为“到……结束时”by the end of +过去的时间点，主句用过去完成时；例：By the end of last year, I had stayed in Xi’an for seven years. 到去年结束时，我已经在西安待了7年了。By the end of last week, they had completed the bridge.
by the end of…的用法
by the end of +将来的时间点，主句用将来完成时；
By the end of next month, I will have finished my new book. 到下个月结束时我将要完成我的新书。
Presentation
Pre-grammar
探究语法规律
探究一：过去完成时的结构和用法
过去完成时还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去，常与for, since等词连用。例: When Jack arrived, Mary had been away for almost an hour. 当杰克到时，玛丽已经离开快一个小时了。
My grandmother had been dead since November last year.
用所给词的适当形式填空。 
1. When I got there the bus _________ (go). 2. By the time I got to class, the teacher ___________ (start) teaching.  3. We _____________ (learn) over 1,000 words by the end of last term.4. I ___________ (clean) the room before he arrived here. 
【实战演练】
had gone
had started
had learnt
had cleaned
Presentation
Pre-grammar
探究语法规律
探究二：一般过去时、现在完成时与过去完成时之间区别
1.一般过去时表示在过去某时发生的动作或存在的状态。
5 years ago

now
2. 现在完成时表示的动作发生在过去，但侧重对现在产生的结果或造成的影响，与现在有关。其结构为：“助动词 have（has）+过去分词” 。例：We have learned English for 5 years.
5 years ago
have learned
now
例：We started to learn English 5 years ago. 我们五年前开始学英语。
我们已经学了五年的英语了。
Presentation
e.g. We have learned 1,000 English words so far. We had learned 1,000 English words by then.
Pre-grammar
探究语法规律
探究二：一般过去时、现在完成时与过去完成时之间区别
3. 过去完成时表示在过去某个时间或动作之前已经发生或完成了的动作或存在的状态，即“过去的过去（ past-in-the-past ）”。 例：We had learned English for 4 years by last year. 到去年为止，我们已经学英语四年了。　　　　　
by last year
now
began to learn
for 4 years
Presentation
Pre-grammar
探究语法规律
What did you find out?
探究三：be about to do sth.的用法
1)表示即将发生的动作，在时间上指最近的将来。如:We are about to start. 我们就要出发了。The new school year is about to begin.新学年开学在即。2)在含有 be about to do 的句子中，不能再加时间状语。如:Wrong: The medical team is about to start immediatelyRight: The medical team is about to start.医疗队就要出发了。
Presentation
Post-grammar
Make sentences using by the time or before.
Before I put cream in the coffee, the coffee had become cold.
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.
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.
4a
Practice
Presentation
Post-grammar
Fill in the blanks with the correct forms of the words in the box.
露面
shown up
had
had forgotten
n.豆
n.市场
had
rushed out
had found out
arrived at
had gone into
4b
Presentation
Post-grammar
Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement.
I had already had breakfast.
I had finished my homework.
had had too much fruit.
动身去
在……以前
4c
Presentation
Post-grammar
一、用所给单词的适当形式填空
1.他说他以前见过你。
He said that he ______________ (see) you before.
had seen
2. 当我进来时，他已做完了作业。
When I came in, he ________________(finish) his homework.
had finished
3. The children ran away after they ___________ (break) the window.
4. I went to Tom’s house but he __________ (go) out.
had gone
had broken
5. My friend __________ (buy) the car two years ago. He ________________ (have) it for two years.
bought
has had
Class test
Presentation
Post-grammar
Class test
二、翻译下列句子。
1. 当他到达学校的时候，老师已经开始 上课了。 _______________________________________________________2. 当我出来的时候，我爸爸已经离开家了。 _________________________________3. 在我拿书包以前我把门锁上了。 _________________________________4. 在她做完作业之前我妈妈已经回来了。________________________________
By the time he got to school, the teacher had already started teaching.
When I got outside, my father had left home.
Before I got my schoolbag, I had locked the door.
Before she finished her homework, my mother had already been back.
Presentation
1. Review the new words and expressions. 2. Recall the unexpected in your daily life and try to tell them to your friends in English.3. Preview the new words and expressions.
Homework