人教版(2019)选择性必修第二册Unit 3 Food and Culture Discovering Useful Structures 过去完成时课件(共26张PPT)

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名称 人教版(2019)选择性必修第二册Unit 3 Food and Culture Discovering Useful Structures 过去完成时课件(共26张PPT)
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科目 英语
更新时间 2023-01-30 21:23:50

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(共26张PPT)
Unit 3 Food and Culture
Learning about Language
Language
过去完成时
past perfect tense
Learning About
Be able to :
To learn to use the past perfect tense and the past perfect passive voice.
To make sentences using the past perfect tense and the past perfect passive voice.
Part.1
Leading-in
Leading in
b. They had finished their dinner by the time Sam joined them.
a.The chef had set up a farm-to-table restaurant before his new cookbook was published.
Look and Say
Q:In sentence (a), which action happened first, “set up” or “was published”
Q:In sentence (b), which action happened first, “finished” or “joined”
present
past
future
earlier past
had set up
was published
had finished
joined
Past perfect:
had done
Past perfect tense is used to tell an activity done before something in the past. So it is used in a background of past.
1. What is past perfect tense
过去完成时表示过去某个时间之前已经发生的动作或一直延续的动作或状态。→“过去的过去”
Hong Kong had returned to China before Macao came back.
present
past
past perfect
1. Hong Kong ___________ (return) to China in 1997.
returned
2. Macao ___________ (return) to China in 1999.
returned
3. Hong Kong _________________ (return) to China before Macao
came back.
had returned
过去完成时 past perfect tense
图片来自网络
图片来自网络
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过去完成时表示在过去某一时间或动作之前完成的动作。
now
A
B
Part.2
While-class
2. Structure of past perfect tense
① 否定句:
Hong Kong hadn’t returned to China before Macao came back.
② 一般疑问句:
Had Hong Kong returned to China before Macao came back
Hong Kong had returned to China before Macao came back.
肯定句:
Sb. had done sth.
否定句:
Sb. hadn’t done sth.
一般疑问句:
Had sb. done sth.?
过去完成时的主动语态和被动语态
一、过去完成时的主动语态
(1)构成:had+过去分词
(2)用法
①表示在过去某一时间或动作之前已经发生或完成的动作。它表示这个动作发生的时间是“过去的过去”, 这一过去时间可用by, before 等构成的短语及 when, before, after, by the time 等引导的状语从句表示。
I had finished my homework before I had supper.
我在晚饭前把家庭作业做完了。
②表示从过去某一时间开始,延续到过去另一时间的动作。这个动作可能还要延续下去,常与for, since构成的表示一段时间的短语或since 引导的表示一段时间的从句连用。
He said that great changes had taken place in his hometown since 1990.
他说自从1990年以来他的家乡发生了很大的变化。
③表示原计划或打算做某事而没有做成。常用动词有want, mean, plan, hope, suppose, expect, intend等。
They had wanted to help but couldn't get there in time.
他们本来是要去帮忙的,但未能及时赶到那里。
He had hoped to catch the 8: 00 bus, but found it gone.
他原希望赶上8点的公共汽车,却发现那趟车已经走了。
3. Usage of past perfect tense
e.g.He had learned 2,000 English words by the end of last year.
① 有时间状语before/by (the end of)by then,by the end of,by
that time,until then,by the time +过去时间点时。
e.g. I had hoped to go to your birthday party,but I was too busy.
② 动词hope,expect,think,intend,mean,want,suppose,plan等用过去完成时表示未实现的愿望、打算和意图。
③用于过去完成时的句型
(1)在hardly/scarcely...when;no sooner...than 句型中,主句用过去完成时,从句用一般过去时。
I had hardly finished my work when he came to see me.
No sooner had I walked in the door than they arrived.
(2)在It was the first/second/...time that...“这是第一/第二/……次……”中,that从句要用过去完成时。
It was the third time that the boy had been late.
(3)It was +一段时间+ since从句,从句谓语常用过去完成时。
It was two years since he had left his hometown.
(3)特殊句式
①It/This/That was the first/second. . .time that sb. had done sth.
这是/那是某人第一次/第二次······做某事。
This was the second time that the musician had toured Europe.
这是这位音乐家第二次在欧洲巡回演出。
②用于hardly/scarcely. . .when, no sooner. . .than 句式中。
The audience had hardly been seated when the saxophone solo started.
观众刚落座,萨克斯独奏就开始了。
I had no sooner finished the work than the light went out.
我刚完成工作,灯就熄灭了。
这两个句子可以把hardly, no sooner 提到句首变成倒装句,时态不变。
Hardly had the audience been seated when the saxophone solo started.
No sooner had I finished the work than the light went out.
(4)过去完成时、现在完成时和一般过去时的区别,试比较:
He had worked as a lecturer before he became a manager.
在成为一名经理之前,他做过讲师。
He has been a manager for years.
他当经理已经有几个年头了。
He once worked as a lecturer, but now he is a manager.
他曾做过讲师,但现在他是一名经理。
(1)表示过去某一时间或事件以前已经完成的被动的动作,常与by,before等引导的时间状语连用。
By the time he got to the school,the first period had been finished.
How many buildings had been destroyed when the hurricane ended
(2)在 told,said,knew,heard,thought等动词之后的宾语从句中,若表示过去某一被动动作时,用过去完成时。
The media reported more than 1,000 people had been killed in the earthquake.
(3)根据语意可以判断出动作先后的被动语态,用过去完成时。
He did what he had been told to. 他做了别人让他做的事。
二、过去完成时的被动语态
二、过去完成时的被动语态
(1)构成:had been+及物动词的过去分词
(2)用法
①表示在过去某一时间或动作之前已经完成的被动动作,常与by, before 等引导的时间状语连用。
A new agreement had been signed by the time we got there.
等我们到那儿的时候,一项新协议已经签署了。
When he reached the nearby shop.it had already been closed.
当他赶到附近的那家商店时,它已经关门了。
②表示从过去某一时间开始,延续到过去另一时间的被动动作,常与for, since 引导的表示一段时间的短语或从句连用。
It was reported that the sale had been advertised for several weeks.
据报道,这场拍卖会已经做了好几个星期的广告。
③用在宾语从句中,常放在said, told, thought, wondered等动词过去式的后面,表示在这些动作之前已经发生的被动动作。
The architect told us that the project had been completed.
那位建筑师告诉我们工程已经竣工了。
④根据语意可以判断出动作先后的被动语态,用过去完成时。
He had to leave his house because it had been flooded.
他只好离开他的房子,因为他的房子已经被淹没了。
【语境应用】完成句子。
1) The tickets ____________ (sell) out before I came to the cinema.
2) By the end of last year, we _________________ (produce) 20,000 cars.
3) He _____________ (tell) many times not to be late.
4) We _______________ (warn) to be careful of rats.
5) A power station ____________ (set) up in their home town.
had been sold
had produced
had been told
had been warned
had been set
6) The train _________ (leave) before we reached the station.
7) 100 tractors __________________ (produce) by the end of last year.
8) When the police arrived, the thieves ________ (run) away.
9) She told us that the meeting ________________ (cancel). 
10) The car ______________ (drive) away this morning.
had left
had been produced
had run
had been canceled
had been driven
1. After being discovered by Dutch explorers in 1606,the eastern half of Australia ________________(claim) by the British in 1770.
2. His sister left home in 1998,and _________________ ever since.
3. She returned home and found all her furniture ______________(ruin) by the flood.
4.This Monday morning I was informed I _______________ as one of three exchange students from our college.
I. Complete the sentences using the correct forms of the words in the box.
has been claimed
had not been heard of
Practice
had been ruined
had been chosen
5.Arthur was surprised when he ________ (arrive) home because the tornado _________ (take) the feathers off his chickens.
6.We ________ (leave) the house when the thunderstorm ________ (finish).
7. He ________ (try) to drive back to his home before the flood ________ (pass) through the village.
arrived
had taken
left
had finished
had tried
passed
(2020全国I)1. It didn’t tum out as I_________(wish) .
(2020全国II) 2.He hung them above the same table he
________(move) from Turin.
(2020全国II) 3.His son, age 15, who_______(take) an art appreciation class, thought that there was something unusual about the one with a young girl sitting on a garden chair.
(2020山东高考) 4.A flood_______(hit) the area earlier that year and the damage it caused had driven away a number of birds.
had wished
had moved
had taken
had hit
Situation 1 When I set off for the cafeteria... ...I had just finished my homework. ...I had ordered a taxi online. ...the windows had been closed.
...the light had been switched off.
Situation 2 Before he went into the chocolate factory...
Situation 3 By the time I arrived at the “insect” party...
Thank you!