资源简介

(共44张PPT)
Unit 12
Life is full of the unexpected.
Section A Grammar Focus-4c
Review
(　　)1.When she got to the station, the bus __________ the station for ten minutes.
A. has left B. had left
C. had been away from D. left
(　　)2.My grandparents __________ for fifty years by the time my sister was 15.
A. married B. had married
C. had got married D. had been married
(　　)3.By the time I arrived home, my mom __________ cooking.
A. has finished B. had finished C. finished D. was finishing
C
D
B
(　　)4.Becky __________ out of the door before I could stop her.
A. will rush B. was rushing
C. has rushed D. had rushed
(　　)5. Mr.Smith __________ in a car factory for ten years before he came to China.
A. had worked B. works
C. is working D. will work
D
A
把下列短语翻译成英语。
1. 即将
2. 倒杯咖啡
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
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 _____ _____ ____.
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
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
语法讲解
过去完成时的用法
(一)概念：过去完成时表示某一动作或状态在过去某
一时间或动作之前已经发生或完成，也可以指过去的动作延续到过去的某一时刻，它表示发生的时间是“过去的过去”。
过去的过去
过去某时
现在
将来
过去完成时
(二)构成：过去完成时由“助动词had(用于各种人称
和数)＋过去分词”构成。
魔法记忆
　巧学过去完成时
过去完成时态不算难，形式要向完成时态看。
have 变成had 不怠慢，断定过去之前是关键。
过去完成时的判断依据。
过去完成时是一个相对的时态。只有和过去的某个时间或动作相比较时才会用到。常见的时间状语（从句）由by, before, when, by the end of, by the time, until 等引导。
eg: He ______ football regularly for many years when he was young.
A. was playing B. play
C. has played D. had played
D
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，常与“for+ 时间段”或“since+ 时点”。
【易错点】
eg: By the time I got to the cinema, the movie ______
for ten minutes.
A. has been on　　　　　　B. had been on
C. had stopped　　　　　　D. had begun
B
过去完成时经常用于主句为一般过去时的宾语从句中，表示从句动作先于主句动作发生，像在told, said, knew, heard, thought等动词后的宾语从句中。
The police found that a lot of things _______.
A. stole　　　　　　　B. was stolen
C. stolen D. had been stolen
D
在表示过去概念的句子中，常出现与完成时态连用的词，如：already, yet, since, for, ever, never及表次数的词，此时句子常用过去完成时。
考向三
eg: When we got there, the basketball match ______
already _______ .
A. has; started　　　　　B. had; started
C. is; starting D. was; started
B
过去完成时的句型转换。
变一般疑问句时把had 提到句首；变否定句时，在had 后加not。
eg: 1 I had finished reading the novel by nine o’clock last night.（改为一般疑问句）
_______ you _________ reading the novel by nine o’clock last night
Had finished
2 I had finished my homework before supper.（改为否定句）
I _______ __________ my homework before supper.
hadn’t finished
总结
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。
【实战演练】
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.
had gone
had started
had learnt
had cleaned
(　　)1. By the time I locked the door, I realized I _____my keys at home.
A. leave B. was leaving C. have left D. had left
(　　)2. By the time my parents reached home yesterday, I _____ the dinner already.
A. had cooked B. cooked C. have cooked D. was cooked
(　　)3. I _____ 900 English words by the time I was ten.
A. learned B. was learning
C. had learned D. have learned
D
A
C
专练
(　　)4. She said she _____ the head teacher already.
A. has seen B. saw
C. will see D. had seen
(　　)5. She had written a number of books _____ the end of last year.
A. for B. in
C. by D. at
D
C
语法精炼
一、用括号内所给单词的适当形式填空。
1. He said that he ________(live) there since he was ten.
2. Chine ____________(achieve) a “complete victory” in
fighting against poverty by the end of 2020.
3. Linda asked if Mr. Green __________(come) back.
4. By the time I _______(get) to the meeting room
yesterday, Mr. Li ____________(finish) his report.
had lived
had achieved
had come
got
had finished
二、单项选择。
1. By the time my parents reached home yesterday, I
_____ the dinner already.
A. had cooked B. cooked
C. have cooked D. was cooked
2. He ____ to play ____ before he was 11 years old.
A. had learned, piano B. had learned, the piano
C. has learned, the piano D. learns, piano
3. By the end of last month, I _______ all the CDs of
Justin Bieber.
A. collect B. collected
C. have collected D. had collected
4. Robert was very upset that most of his friends
______ when he ______ at the party.
A. left; had arrived B. had left; arrived
C. left; arrived D. had left; had arrived
（1） by the end of +时间点意为“到……结束时”
① +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。
② +将来的时间点， 主句用将来完成时；
拓展
例：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。
(2) by+时间点意为“到……为止；截止……时”
① +现在的时间点，主句用现在完成时；
例：By now, I have finished all my homework.
截止现在，我已经完成了所有的作业。
② +过去的时间点，主句用过去完成时；
eg：By yesterday, the building had been completed.
截止昨天，这个建筑就已经完成了。
③ +将来的时间点，主句用将来完成时。
eg：By tomorrow, all the students will have been out of the school.
到明天所有的学生都将离校。
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 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. 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 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.
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 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 _________ ___ 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
教师点拨 show up出现；露面
show的常用词组：
show off 炫耀
show one’s face 露面
show up (使)看得见，变得明显
eg: She did not show up at the party.
这次聚会她没露面。
拓展
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 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.
课堂小测
一、根据句意及首字母或中文提示完成单词
1. Why did you put some red __________ (豆) into the soup
2. Would you like milk or __________ (奶油) in your coffee
3. Bill says he doesn’t like rooms that face _____ (朝西).
4. She bought some vegetables from the local m_______.
5. Michael, help yourself to some more ______ (果馅饼).
beans
cream
west
arket
pies
二、根据汉语意思完成句子，词数不限
6. 当我到学校的时候，我意识到我把书包落在家里了。
When I got to school, I realized I __________ my backpack at home.
7. 在我到公共汽车站之前，汽车已经开走了。
Before I ______________ the bus stop, the bus ______________.
8. 我起床时，我弟弟已经进入浴室了。
By the time I __________, my brother _____________________ in the shower.
9. 玛丽的爸爸在街上看到我，捎了我一程。
Mary’s dad saw me on the street and ________________ in his car.
10. 因为李老师忘记了，所以她没有出现在我们的聚会上。
Miss Lee didn’t __________ at our party because she forgot.
had left
got to / arrived at
had already left
got up
had already gotten
gave me a lift
show up
三、单项填空
(　　)11. The train from Beijing _____ ten minutes ago.
A. has arrived B. was arriving
C. arrived D. had arrived
(　　)12. The students _____ their classroom before the visitors arrived.
A. have cleaned B. had cleaned
C. was cleaned D. cleaned
(　　)13. When we arrived there, they _____ the work.
A. has completed B. completed
C. will complete D. had completed
C
B
D
(　　)14. I don’t go to the cinema with my friends because I _____ that movie twice.
A. have watched B. had watched
C. was watching D. would watch
(　　)15. By the end of last month, I _____ all the CDs of Justin Bieber.
A. collect B. collected
C. have collected D. had collected
A
D
16. He asked me _____ during the summer holidays.
A. where I had been
B. where I had gone
C. where had I been
D. where had I gone
A
17. What ______ Jane ______ by the time she was seven
A. did; do B. has; done
C. did; did D. had; done
18. I ______ 900 English words by the time I was ten.
A. to learn B. was learning
C. had learned D. learnt
D
C
19. By the time I got back to school, the bell _______ .
A. ring B. has rung
C. had rung D rang
20. The students _______ their classroom when the visitors arrived.
A. have cleaned B. had cleaned
C. was cleaned D. had been cleaned
C
B
一、用所给词的正确形式填空
1. Chen Dao ming ______(leave) before we arrived there.
2. By the end of last month he ______(design) ten bridges.
3. She said that she ____________(not hear) from him since he left Shanghai.
4. Tom’s father ___________ (work) there since 20 years
ago, so he knew the place well.
5. That was the toughest problem that I ________(meet)
once before.
had left
had designed
hadn’t heard
had worked
had met
Exercises
一、单项选择
1. By the time I got to the cinema, the movie _______ for 10 minutes.
A. has been on B. had been on
C. had stopped D. had begun
2. Robert was very upset that most of his friends _______ when he ______ at the party.
A. left; had arrived B. had left; arrived
C. left; arrived D. had left; had arrived
B
B
3. She _______ her keys in her office so she had to wait until her husband ______ home.
A. has left; comes B. had left; would come
C. had left; came D. left; had come
4. She said she ________ the story already.
A. has read B. read
C. will read D. had read
5. They ______ 100 hundred trees by last weekend.
A. planted B. have planted
C. will have planted D. had planted
C
D
D
二、句型转换
1.I had cooked the dinner when my parents came back. (改为否定句)
I __________ _________ the dinner when my parents came back.
2.Mary’s brother went into the bathroom and then Mary got up. (改写句子)
When Mary _____ ______ , her brother ____ ____ ___ the bathroom.
3.By the time she got up, her mother had gone to work. (对画线部分提问)
______ _____her mother done by the time she got up
hadn’t cooked
had been in
got up
What had
Homework
1. 复习Grammar Focus 中的内容。
Try to make sentences with before,
by the time and be doing … when,
and make use of the past perfect
tense.
2. 写作： 描述一次难忘的经历。
Thank You!

展开更多......

收起↑