Unit 4 History and Traditions Discovering Useful Structures 课件(共44张PPT)人教版(2019)必修第二册

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Unit 4 History and Traditions Discovering Useful Structures 课件(共44张PPT)人教版(2019)必修第二册

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(共44张PPT)
人教版2019必修第二册
Unit 4 History and Traditions
Discovering Useful Structures
Learning objectives:
At the end of this lesson, students are able to:
Understand the definition, formation, and basic meaning of past participles.
Master the usage of past participles as attributes and object complements.
Correctly distinguish the differences between past participles and other non-finite verbs.
Lead-in:
定语
名词、代词、数词
形容词
定语从句
介词短语、动词不定式、分词
Attribute 定语:用来修饰、限定、说明名词或代词的品质与特征
Lead-in:
不同词性作定语
1. 形容词作定语 (Adjective as Attributive)
She has long hair.
2. 名词作定语 (Noun as Attributive)
3. 代词作定语 (Pronoun as Attributive)
He works in a shoe store.
This book is very interesting.
4. 数词作定语 (Numeral as Attributive)
Lead-in:
不同词性作定语
5. 介词短语作定语 (Prepositional Phrase as Attributive)
介词短语作定语时,通常放在被修饰词的后面(后置定语)。
The book on the desk is mine.
6. 不定式作定语 (Infinitive as Attributive)
不定式作定语时,通常也放在被修饰词的后面。
例句: I have a lot of work to do.
7. 分词作定语 (Participle as Attributive)
现在分词(-ing形式)和过去分词(-ed形式)都可以作定语。
The sleeping baby looks so cute.
The broken window needs to be fixed.
Lead-in:
不同词性作定语
8. 定语从句 (Attributive Clause)
一个完整的句子(从句)也可以作定语,放在被修饰词的后面
The girl who is wearing a red dress is my sister.
1. 基本模式:done
不规则变化见P114
动词原型+ed
2. 意义:表示完成和被动。
Lead-in:
What is the past participle(过去分词)?
1.及物动词的过去分词作定语,在语态上表示被动;在时间上,常表示动作已完成,有时也不表示时间性。逻辑上,它与其修饰的名词构成动宾关系(即名词是分词动作的承受者),且动作通常发生在谓语动作之前
例句: the stolen bike (那辆被偷的自行车)
例句: the affected people (那些受感染的人)
Past Participle as the Attribute:
2.不及物动词的过去分词:仅表“完成”
例句: fallen leaves (落叶,指已经落下的叶子)
例句: the risen sun (升起的太阳)
这类动词没有被动语态,所以只表示动作已经完成。
Past Participle as the Attribute:
过去分词作前置定语
单个的过去分词作定语时,通常放在被修饰的名词之前,用来表示被动或完成的意义。
1. 表示被动意义,即被修饰的名词是过去分词动作的承受者。
例如:
The broken window needs to be repaired.(“window”是“break”这个动作的承受者,窗户是被打破的,所以用过去分词“broken”作前置定语修饰“window”)破碎的窗户需要修理。
The stolen bike was found at last.(“bike”是“steal”这个动作的承受者,自行车是被偷的,因此用“stolen”作前置定语修饰“bike”)被盗的自行车终于找到了。
Past Participle as the Attribute:
过去分词作前置定语
单个的过去分词作定语时,通常放在被修饰的名词之前,用来表示被动或完成的意义。
2. 表示表示完成意义,强调动作已经完成,被修饰的名词与过去分词之间存在一种状态上的关联。
例如:
The fallen leaves covered the ground.(“leaves”是“fall”这个动作的完成者,叶子已经掉落了,用“fallen”作前置定语修饰“leaves”)落叶覆盖了地面。
We should respect the aged.(“aged”表示“年龄大的、年老的”,这里可以理解为“人经历了变老这个过程”,用“aged”作前置定语修饰“人”,即“the aged”表示老年人)我们应该尊敬老年人。
过去分词作后置定语
过去分词短语作定语时,通常放在被修饰的名词之后,其作用相当于一个定语从句,同样可以表示被动或完成的意义。
1.表示被动意义
例如:
The book written by Mo Yan is very popular.(“book”和“write”之间是被动关系,书是被莫言写的,此过去分词短语相当于定语从句“which was written by Mo Yan”)莫言写的这本书非常受欢迎。
The problem discussed at the meeting yesterday has been solved.(“problem”和“discuss”是被动关系,问题是被讨论的,相当于“which was discussed at the meeting yesterday”)昨天会议上讨论的问题已经解决了。
过去分词作后置定语
过去分词短语作定语时,通常放在被修饰的名词之后,其作用相当于一个定语从句,同样可以表示被动或完成的意义。
2.表示完成意义
例如:
The house built last year is very beautiful.(“house”和“build”是完成关系,房子是去年建成的,相当于“which was built last year”)去年建的那座房子非常漂亮。
The students trained hard for the competition are confident of winning.(“students”和“train”是完成关系,学生们已经为比赛刻苦训练过了,相当于“who have been trained hard for the competition”)为比赛刻苦训练过的学生们有信心赢得比赛。
特殊情况
单个的过去分词修饰复合不定代词
单个的过去分词修饰复合不定代词something, everything, anything, nothing, nobody等或指示代词those时,要放在这些词的后面
1. 修饰复合不定代词
结构:不定代词 + 过去分词
Something
例句: Do you have something written in pencil
翻译: 你有用铅笔写的东西吗?
解析: written(被写)修饰 something。
Nothing
例句: There is nothing changed in this room.
翻译: 这个房间里没有什么改变的东西。
解析: changed(被改变)修饰 nothing。
特殊情况
单个的过去分词修饰复合不定代词
单个的过去分词修饰复合不定代词something, everything, anything, nothing, nobody等或指示代词those时,要放在这些词的后面
1. 修饰复合不定代词
结构:不定代词 + 过去分词
Anything
例句: Is there anything planned for tonight
翻译: 今晚有安排好的事情吗?
解析: planned(被计划)修饰 anything。
Everything
例句: Everything bought in this shop is expensive.
翻译: 在这家店买的东西都很贵。
解析: bought(被买)修饰 everything。
特殊情况
单个的过去分词修饰复合不定代词
单个的过去分词修饰复合不定代词something, everything, anything, nothing, nobody等或指示代词those时,要放在这些词的后面
2.修饰指示代词 "Those"
结构:Those + 过去分词
例句: Those invited to the party were her closest friends.
翻译: 被邀请来参加派对的那些人是她最亲密的朋友。
解析: invited(被邀请)修饰 those。
例句: We should help those left behind.
翻译: 我们应该帮助那些被落下的人。
解析: left(被留下)修饰 those。
特殊情况
有些过去分词已经完全形容词化
它们作定语时,主要强调事物的特征或性质,而不强调被动或完成的意义。
例如:
We need some boiled water.(“boiled”虽然从形式上是“boil”的过去分词,但在这里表示“烧开过的”这种特征)我们需要一些开水。
[名师点津] 非谓语动词作定语的区别:
(1)过去分词与动词-ing形式作定语的区别:
语态 时态
done 被动 完成
doing 主动 进行
As is known to us all, China is a developingcountry.(表主动、进行)
众所周知,中国是一个发展中国家。
The team of tourists came from a developedcountry.(表被动、完成)
这个游客团队来自一个发达国家。
[名师点津] 非谓语动词作定语的区别:
(2)过去分词(done)、现在分词的被动语态(beingdone)与动词不定式的被动语态(to be done)作定语的区别:
语态 时态
done 被动 完成
being done 被动 进行
to be done 被动 尚未发生
The library built last year is the largest one in our city.(表被动、完成)去年建成的图书馆是我们市最大的。The library being built now will contain many digital reading rooms.(表被动、进行)
现在正在建造的图书馆将会有很多电子阅览室。
The library to be built next month is designed bya famous architect.(表被动、尚未发生)
下个月将建造的图书馆是由一位著名的建筑师设计的。
宾语补足语
名词
形容词
副词
介词短语、动词不定式、分词
Object Complement 宾语补足语:在英语句子中,某些及物动词或介词后面需要宾语,还需要某个词或词组来补充说明宾语的性质,属性,状态,程度等,这些词或词组被称为宾语补足语。
过去分词作宾语补足语时,通常表示宾语与过去分词所表示的动作之间存在被动或完成的关系。
可以接过去分词作宾语补足语的几类动词。
1.感官动词
常见的感官动词,如see(看见)、hear(听见)、watch(观看)、notice(注意到)、feel(感觉)等,这些动词后可以接过去分词作宾语补足语,强调宾语承受的动作。
Past Participle as Object Complement:
I heard my name called.
我听到有人叫我的名字。(名字是被叫的)
When we got there, we found the window broken.
我们到那里时,发现窗户破了。(窗户是被打破的)
I saw the thief caught by the police.
我看到小偷被警察抓住了。
过去分词作宾语补足语
过去分词作宾语补足语时,通常表示宾语与过去分词所表示的动作之间存在被动或完成的关系。
可以接过去分词作宾语补足语的几类动词。
2. 使役动词
使役动词如have(使、让)、make(使、让)、get(使、让)、leave(使处于某种状态)等,后面也能接过去分词作宾语补足语。
1. have + 宾语 + 过去分词
a.表示"叫/让/请别人做某事",动作的执行者不是主语,也不是宾语,而是其他人。
- 例句:I had my bike repaired yesterday.(我昨天把我的自行车修好了。)
- 解释:“repaired”是过去分词作宾语“bike”的补足语,“bike”与“repair”之间是被动关系,即自行车是被修理的。
b.表示遭遇不幸事件。
He had his wallet stolen. (他的钱包被偷了。)
2. make + 宾语 + 过去分词(“表示”使处于某种状态“,并强调动作的被动性。)
He raised his voice to make himself heard. 他提高嗓门,为了让别人听到他。
3. keep + sth. + done: 保持某物处于被...的状态
Please keep the door locked. 请保持门锁着。
4. leave + 宾语 + done (表示状态)
过去分词作宾语补足语时,通常表示宾语与过去分词所表示的动作之间存在被动或完成的关系。
可以接过去分词作宾语补足语的几类动词。
3.表示“希望、要求、命令”等意义的动词
这类动词如want(想要)、wish(希望)、order(命令) 、 request(请求),like,expect等,后面可接过去分词作宾语补足语。
例句:The boss ordered the work finished at once.(老板命令工作立刻完成。)
解释:“finished”是过去分词作宾语“work”的补足语,“work”与“finish”之间是被动关系,即工作是被完成的。
Past Participle as Object Complement:
1.感官动词
常见的感官动词,如see(看见)、hear(听见)、watch(观看)、notice(注意到)、feel(感觉)等,这些动词后可以接过去分词作宾语补足语,强调宾语承受的动作。(以 see为例)
See+宾语+doing 看到.....正在做......(表主动、进行
See+宾语+do 看到......做了......(表主动、完成)
See+宾语+done 看到......被做(表被动、完成)
[名师点津] 非谓语动词作宾语补足语的区别:
I saw them playing football when I was passing by yesterday.
(表主动、正在进行)昨天我路过时,看到他们正在踢足球。
I saw him run to the crowd just now.
(表主动、完成)刚才我看到他跑进了人群。
He saw the candle lit, and began to do his work.
(表被动、完成)他看到蜡烛被点燃了,就去做自己的工作了。
1)have表示使,让时,不用于被动语态
1. have + 宾语 + 过去分词
a.表示"叫/让/请别人做某事",动作的执行者不是主语,也不是宾语,而是其他人。
b.表示遭遇不幸事件。
2. "have十宾语十do"表示"让......做某事",动作执行者为宾语。
Mum had me run to her.
妈妈让我跑向她
3. "have十宾语十to do"表示"有......要做,有可以......的人"。
I have a lot of homework to do.
我有很多作业要做。
I have a friend to help me.
我有一个可以帮我的朋友。
2. 使役动词
使役动词如have(使、让)、make(使、让)、get(使、让)、leave(使处于某种状态)等
4. "have十宾语十doing"表示"让......一直做某事/处于某种状态",动作的执行者为句子宾语,但动词必须为持续性动词,后面常接时间段。
The instructor had him standing in the sun fortwo hours.
教官让他在阳光下站了两个小时。
2) make表示"使"的含义时,有轻微强迫之意。
1."make十宾语十do"表示"迫使某人做某事",被动语态为 be made to do。
The little boy made his little brother cry.
这个小男孩把他的小弟弟惹哭了。
2. "make十宾语十doing"表示"使......处于某种状态",并强调动作的主动性。
The news made him feeling excited.这个消息使他很兴奋。
[名师点津] 非谓语动词作宾语补足语的区别:
3. make + 宾语 + 过去分词(“表示”使处于某种状态“,并强调动作的被动性。)
- 例句:The teacher made himself understood by speaking slowly.(老师通过说得慢让别人听懂他的话。)
- 解释:“understood”是过去分词作宾语“himself”的补足语,“himself”与“understand”之间是被动关系,即他自己被别人理解。
[名师点津] 非谓语动词作宾语补足语的区别:
3)leave表示"让,使"的含义时,既可用于主动语态,也可用于被动语态。
1. "leave十宾语十to do sth"表示"让某人做某事",强调未来的动作。
Leave the 5-year-old boy to dress himself.
让这个五岁的男孩自己穿衣服吧。
2. "leave十宾语十doing"表示"让.....一直做某事",强调当时正在发生的动作。
The movie left me thinking deeply for a long time.
这部电影使我久久陷入了沉思。
3. leave + 宾语 + 过去分词(表示状态)
- 例句:He left the door locked when he went out.(他出去时让门一直锁着。)
- 解释:“locked”是过去分词作宾语“door”的补足语,“door”与“lock”之间是被动关系,即门是被锁的。
[名师点津] 非谓语动词作宾语补足语的区别:
4) get表示"使,让"的含义时,常用于以下结构中:
1. "get十宾语十to do"表示"让......做某事",强调未来的动作。
He got his students to help him.
他让他的学生帮助他。
2"get十宾语十done"表示"让......被做",强调动作的被动性。
They got their plan started on time.
他们准时启动了他们的计划。
3"get十宾语十doing"表示"让......开始做某事"或处于某种状态,强调动作正在进行。
I managed to get the car moving.
我设法发动了汽车。
He got his toy car running very fast.
他让他的玩具车跑得飞快。
[名师点津] 非谓语动词作宾语补足语的区别:
5) keep表示"使,让,保持"的含义时,常用于以下结构中:
1"keep十宾语十doing"表示"使......处于做某事的状态中",强调动作延续一段时间。
I'm sorry to have kept you waiting for so long.
对不起,让您久等了。
2"keep十宾语十done"表示"使......处于被动状态
The salesman kept his products recommended to the potential customers.
销售员将他的产品推介给潜在的顾客们。
[名师点津] 非谓语动词作宾语补足语的区别:
3. with复合结构中非谓语动词(短语)作宾补的比较:
with sth doing 表主动,表进行
with sth to do sth 表将来
with sth done 表被动、完成
[名师点津] 非谓语动词作宾语补足语的区别:
It is an increasingly popular platform, withpeople sharing information publicly on it.(表主动、进行)
这是一个越来越受欢迎的平台,人们在上面公开分享信息。
With a lot of work to do, she had no time for atrip.(表将来)
由于有许多工作要做,她没时间去旅行。
With the trouble solved smoothly, they had their project pushed forward.(表被动、完成)
由于麻烦顺利解决了,他们继续推进他们的项目。
过去分词与宾语的逻辑关系
1. 被动关系
过去分词作宾语补足语时,宾语是过去分词所表示动作的承受者,二者构成被动关系。
例句:We found the city greatly changed.(我们发现这座城市发生了巨大的变化。)
解释:“changed”是过去分词作宾语“city”的补足语,“city”是“change”这个动作的承受者,即城市是被改变的。
Past Participle as Object Complement:
过去分词与宾语的逻辑关系
2. 完成关系
有时过去分词作宾语补足语表示动作已经完成。
例句:When I returned, I found the task completed.(当我回来时,我发现任务已经完成了。)
解释:“completed”是过去分词作宾语“task”的补足语,表明“task”的完成状态。
Past Participle as Object Complement:
用法注意事项
1. “have + 宾语 + 过去分词”的特殊用法
当“have + 宾语 + 过去分词”表示“遭遇某种不幸”时,通常带有被动和不情愿的意味。
例句:He had his wallet stolen on the bus.(他在公共汽车上钱包被偷了。)
而“have sb. do sth.”表示“让某人做某事”,“sb.”和“do sth.”之间是主动关系;“have sb./sth. doing”表示“让某人/某物一直做某事”。需要注意与“have + 宾语 + 过去分词”进行区分。
例句:I'll have my assistant send the file to you.(我会让我的助手把文件发给你。)
例句:Don't have the water running all the time.(不要让水一直流着。)
Past Participle as Object Complement:
结构 含义 例句
have/get sth. done 某事被做 (被动) (sth是宾语) I had my car washed.
(我让人洗了车/车被洗了)
have sb. do sth. 让某人做某事 (主动) (sb是宾语,do是省略to的不定式) I had Tom wash my car.
(我让汤姆洗车)
have sth. to do 有某事要做 (主动) (表示主语有义务做 I have a lot of homework to do.
(我有很多作业要做)
用法注意事项
2. 主动与被动的区别
在某些情况下,需要根据语境判断是用现在分词还是过去分词作宾语补足语。现在分词作宾语补足语时,宾语与现在分词所表示的动作之间是主动关系,强调动作正在进行;而过去分词作宾语补足语时,宾语与过去分词所表示的动作之间是被动关系,强调动作的被动或完成。
例句:I heard her singing in the next room.(我听到她在隔壁房间唱歌。)(“singing”表示主动和正在进行)
例句:I heard the song sung in English.(我听到这首歌被用英语演唱。)(“sung”表示被动)
Past Participle as Object Complement:
summary
项目 过去分词作定语 过去分词作宾语补足语
功能 修饰名词,相当于形容词 补充说明宾语的状态或动作
位置 单个词在前,短语/不定代词在后 动词 + 宾语 + 过去分词
逻辑关系 与被修饰词是被动/完成关系 与宾语是被动关系
例句 The damaged car was towed away. The police towed away the damaged car.
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Step 3
summary
Practice:
The students ________ (select) to finish the task on time were praised by the teacher.
Have you read any novels ________ (write) by Charles Dickens
Look at those ________ (gather) clouds! It's going to rain soon.
The house ________ (build) last year has been sold out.
There is no time to waste for us; we have a lot of difficulties ________(overcome).
selected
written
gathered
built
overcome
Practice:
6. I had my hair ________ (cut) yesterday, so I look quite different now.
7. When I arrived home, I found the window ________ (break) and something stolen.
8. The speaker raised his voice but still couldn't make himself ________ (hear).
9. We saw the thief ________ (catch) by the police.
10. I want to get my car ________ (repair) before the trip.
cut
broken
heard
caught
repaired
11.I need to get my watch ________ (repair). It doesn't work.
12. The girl ________ (name) Li Fang is my best friend.
13. The teacher wanted the exercises ________ (finish) in an hour.
14. Have you seen the house ________ (build) over there
15. You shouldn't leave such an important matter ________ (unsettle).
Practice:
repaired
named
finished
built
unsettled
Practice:
将下列句子中的定语从句改为过去分词短语作定语。
示例:
The book which was written by Mo Yan is very popular.
→ The book written by Mo Yan is very popular.
The man who was invited to the party is a famous actor.
→ The man ________ to the party is a famous actor.
All the questions that were asked by the students were difficult.
→ All the questions ________ by the students were difficult.
The building which was destroyed in the fire has been rebuilt.
→ The building ________ in the fire has been rebuilt.
invited
asked
destroyed
Thank You !
Discovering Useful Structures
人教版2019必修第二册

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