人教版2025九年级英语Unit 6 When was it invented Section A 2d&GF~4c课件(共27张PPT)

(共27张PPT)
When was it invented
Section A 2d&GF~4c
Unit 6
Learning Objectives
感知学习一些与描述物品发明历史相关的词组和句式；梳理与一般过去时被动语态相关的句子结构，理清被动语态的用法；能够理清主动语态变被动语态的基本情况。（学习理解）
运用已学知识对拉链的发明进行归纳和描述；能够将主动语态的句子转化为被动语态。（应用实践）
用一般过去时被动语态的句子描述生活中物品的发明；能够了解新时代中国的“四大发明”，为其带给我们生活上的改变而感到自豪。（迁移创新）
通过本课时学习，我们能够：
1
2
3
change the world
used widely
zipper
1. Who invented the zipper
2. When was the zipper invented
3. When was zipper used widely
1. What is the subject for Paul’s school project
Small inventions that changed the world.
2. What kind of invention does Roy think of
The zipper.
3. Why does Roy think it is a great invention
Because it is often used in our daily lives.
4. Who was the zipper invented by
Whitcomb Judson.
5. When did the zipper become popular
Around 1917.
Listen to the conversation and answer the questions.
2d
Paul: Hey Roy, the subject for my school project is “Small
inventions that changed the world.” Can you help me
think of an invention
Roy: With pleasure! Let me think… hmm… I know! The zipper!
Paul: The zipper Is it really such a great invention
Roy: Think about how often it’s used in our daily lives. You can
see zippers on dresses, trousers, shoes, bags… almost
everywhere!
Paul: Well, you do seem to have a point…
Roy: Of course! I thought about it because I saw a website last
week. The pioneers of different inventions were listed there.
For example, it mentioned that the zipper was invented by
Whitcomb Judson in 1893.But at that time, it wasn’t used widely.
Paul: Really So when did it become popular
Roy: Around 1917.
Role play the conversation.
2d
mention 提到，说到
daily 每日的，日常的
list n.清单，名单；v.列清单
do 强调作用
先锋，拓荒者
Language Points
pleasure名词，意为“高兴；愉快”。
e.g. He takes no pleasure in his work. 他从工作中得不到丝毫的乐趣。
【辨析】pleasure，pleased与pleasant
pleasure 名词，“高兴；愉快”。常用短语With pleasure./ My pleasure./ It’s a pleasure.
pleased 形容词，“高兴的”，短语be pleased to do sth. “乐于做某事”；be pleased with “对……满意”。
pleasant 形容词，“令人愉快的”，可作定语、表语，修饰物。
Try to retell the conversation.
Do you know how small _________ changed the world That’s the subject for my ______ ______. I want to introduce the _______. It is ______ a great invention ______ it is often ______ in our ______ _______. Zippers can ______ ______ _____ dresses, ______ , shoes, bags, almost everywhere. I have seen on a ________ that the _________ of different inventions were ______. There it ________ that the zipper was invented _____ Whitcomb Judson in 1893. But it wasn’t used _________ at that time. In around 1917, it became ___________.
inventions
school project
zipper
such
that
used
daily lives
be seen on
trousers
website
pioneers
listed
mentioned
by
widely
popular
1. 被用来
2. 考虑
3. 有道理
4. 电话是什么时候发明的？
5. 我认为是1876年发明的。
6. 它们是用来干什么的呢？
7. 你能帮我考虑一种发明吗？
8. 它真的是如此伟大的一项发明吗？
9. 想想在我们的日常生活中会多么频繁的使用它。
10. 在那时，它还没有被广泛地应用。
be used for
think of
have a point
When was the telephone invented
I think it was invented in 1876.
What are they used for
Is it really such a great invention
Think about how often it’s used in our daily lives.
At that time, it wasn’t used widely.
Can you help me think of an invention
Close your book and translate.
When was the zipper invented？ It was invented in 1893.
Who was it invented by It was invented by Whitcomb Judson.
When was tea brought to Korea？ It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for It’s used for serving really cold ice-cream
Active Voice: Alexandar Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876. Read Grammar Focus and find out the common feature.
1.肯定句: 主语 + was/were + V-ed + (by…)
The news was published by the government.
2.否定句: 主语 + was/were + not + V-ed + (by…)
3.一般疑问句: Was/Were + 主语 + V-ed + (by…)
The news wasn’t published by the government.
Was the news published by the government
特殊疑问句: 疑问词 + was/were + 主语 + V-ed + (by…)
When was the news published by the government
一般过去时被动语态结构:“主语+ was /were +及物动词的过去分词(+by+动作的执行者).”常见几种句型结构：
一、一般过去时被动语态句子结构
用法 例句
不知道或没必要指出
动作的执行者
These books were written for children.
这些书是为儿童写的。
强调或突出动作的
承受者
The book was written by Mo Yan.
这本书是由莫言写的。
动作的执行者不是人
而是无生命的事物
Many traffic accidents were caused by
careless driving.
很多交通事故是由粗心驾驶造成的。
二、被动语态的用法：
Edison invented the light bulb.
The light bulb was invented by Edison.
主语 谓语动词主动语态(过去时) 宾语
主语 谓语动词被动语态(be+V-ed) 介词+宾语
◆ 主动语态变被动语态的方法
① 主动语态的主语变成by引导的介词短语放在主谓结构后面，有时可以省略。
② 主动语态的谓语动词变成“was/were+及物V-ed”形式。
③ 主动语态的宾语变成被动语态的主语。
三、主动语变被动语态方法及注意问题
1. 有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。
e.g. They put off the meeting because of the weather.
→ The meeting was put off because of the weather.
会议因天气的缘故被推迟了。
主动语态变被动语态应注意的问题
2. 含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变；如果把指“物”的直接宾语变为主语，则在间接语前加to或for。
e.g. My aunt gave me an e-dictionary yesterday.
I was given an e-dictionary yesterday.
An e-dictionary was given to me yesterday.
3. 主动句中感官动词see / hear / watch / feel等和使役动词make / let / have等后跟省略to的动词不定式，变为被动语态时应加上不定式标志to。
e.g. I saw a heavy man enter the house.
A heavy man was seen to enter the house.
4. 系动词、不及物动词或某些短语动词（happen, take place, come true, fall asleep…）没有被动语态。
e.g. What happened to Mr. Brown
布朗先生发生了什么事？
主动语态变被动语态应注意的问题
主动语态不能变成被动语态的情况 当宾语是反身代词或相互代词时 He made himself a cup of coffee.
They help each other.
当宾语是不定式或V-ing时 We all want to be teachers.
当某些动词表示状态或结果时 The milk tastes slightly sour.
当宾语表示数量、重量、大小或程度 The jade weighs one ton.
1. Someone stole my watch.
____________________________________________
2. They used five eggs to make this big cake.
___________________________________________
3. When did they invent the personal computer
___________________________________________
4. They asked us not to run in the hallway.
____________________________________________
5. Someone took the video back to the store.
_____________________________________________
My watch was stolen by someone.
When was the personal computer invented by them
Five eggs were used to make this big cake by them.
Rewrite these sentences using the passive voice.
The video was taken back to the store by someone.
We were asked not to run in the hallway by them.
Rewrite the sentences using the passive voice.
1. They sold the fridge at a low price.
_________________________________________________________
2. Somebody stole my camera from my hotel room.
_________________________________________________________
3. Where did you take the photos of these wolves
_________________________________________________________
4. The guide warned them not to climb the mountain in bad weather.
________________________________________________________
5. Different writers translated the book into different languages.
_________________________________________________________
The fridge was sold (by them) at a low price .
My camera was stolen (by somebody)from my hotel room .
Where were the photos of these wolves taken (by you)
They were warned by the guide not to climb the mountain in bad weather.
The book was translated into different languages by different writers.
4a
eat, like, invite, tell, lock, ring, break, bring
Complete the sentences with correct forms of the verbs in the box.
1. You ____________ to the party last night, weren’t you Why didn’t you go
2. The earthquake happened all of a sudden, but luckily the villagers ____________ to a safe place.
3. The door __________ when we arrived, so we ______ the bell.
4. The students ___________ not to eat or drink in class, but Ruby ______ the rule when she started eating a biscuit in science class.
5. The cookies __________ by the hungry kids in less than 20 minutes, and they really _____ them.
were invited
were brought
was locked
rang
broke
were told
were eaten
liked
v. 锁上 n. 锁
v. (使)发出钟声或铃声；打电话
4b
all of a sudden 突然；猛地
Decide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks.
The telephone ___________ (invent) by Alexander Graham Bell. He ________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _______ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone ___________ (invent) in 1876. The first sentence that_________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ______ (use) around the world.
was invented
was born
worked
learned
was invented
was said
is used
4c
“Four New Chinese inventions” selected by foreigners.
high-speed railway
Alipay
shared-bikes
shop online
They make our life so convenient!
1. 拉链是什么时候被发明的？______ _____ the zipper ________
2. 它于1893年被发明。It ______ _________ in 1893.
3. 它是由谁发明的？ ______ _____ it invented ______
4. 是由惠特科姆 贾得森发明的。It ____ _________ ___ Whitcomb Judson.
5. 茶叶什么时候被带到朝鲜的？______ ____ tea _________ to Korea
6. 是在六到七世纪之间被带到朝鲜的。
It _____ _______ to Korea ________the 6th and 7th centuries.
7. 热冰淇淋勺用来做什么？What ___ the hot ice-cream scoop_____ ____
8. 它用来盛很凉的冰淇淋。It’s _____ ____ ________ really cold ice-cream.
9. 贝尔于1876年发明了电话机。
Alexander Graham Bell __________the telephone in 1876.
10. 电话机在1876年被贝尔所发明。The telephone _____ ________ ___
Alexander Graham Bell in 1876.
When was invented
was invented
Who was by
was invented by
When was brought
was brought during
is used for
used for serving
invented
was invented by
Try to recite Grammar Focus.
被动语态
肯定句
否定句
一般疑问句
特殊疑问句
主语 + be + done + 其他内容
主语 + be + not + done + 其他内容
Be + 主语 + done + 其他内容
特殊疑问词+ be + 主语 +done+其他
易错点一：
易错点二：
已学的被动语态结构
时态 被动语态结构 例句 主动语态 被动语态
一般现在时 am/is/are + done We clean the classroom every day. The classroom is cleaned by us every day.
一般过去时 was/were + done He made the kite. The kite was made by him.
These days students in some schools ______ not to use mobile phones.
A. ask B. asked C. are asked D. were asked
A lot of trees ______ on the hill yesterday.
A. are planted B. will be planted
C. have been planted D. were planted
When Tim _______ why he was late for school, he just kept silent.
A. was asked B. asked C. was asking D. is asking
Every day, too much water _______ in our school. We should save it.
A. is wasted B. wastes C. was wasted D. wasted
Exercises
C
D
A
A
Excellent Good To be improved 评价项目 自我评价 同伴评价 教师评价
能够掌握一些与描述物品发明历史相关的词组和句式
能够掌握一般过去时被动语态的用法，将主动语态的句子转化为被动语态
能够结合所梳理的被动语态的规则独立完成语法练习，并有较高的正确率
能够用一般过去时被动语态的句子描述生活中物品的发明，了解新时代中国的“四大发明”，为其带给我们生活上的改变而感到自豪
Homework
Must do: 1.Write 7 sentences using passive voice in the simple past tense.
2. Preview 3a-3c on P43.
Try to do: Recite Grammar Focus.
Enjoy a story about Passive Voice!