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人教版2022-2023年度九年级英语全册同步课件
（新课标）Unit 6 When was it invented？
SectionA(3a-4c）
Learning objectives
1.Master some words and expressions: ruler, boil, remain, smell, national, trade, doubt, fridge, low, somebody, translate, lock, by accident, take place, without doubt, all of a sudden
2.Learn the passive voice in past tense
3.Sentences：① When was the zipper invented
② It was invented in 1876.
③ Who was it invented by
Do you like drinking tea
and what kind of tea do you like
green tea
black tea
Chinese tea with nothing
tea with milk
Lead in
How is tea produced
1.Tea plants are grown on the sides of mountains.
2.The leaves are ready,they arepicked by hand.
3.The leaves are sent for processing.
Do you konw how tea was invented
An Accidental Invention
What does it mean
Can you think of an invention that was invented by accident
偶然；意外地
3a Read the passage quickly and match each paragraph
with its main idea.
Lu Yu and his book Cha Jing
How tea spread to other countries
How tea was invented by accident
Para. 1
Para. 2
Para. 3
Presentation
Read the passage again and answer the questions.
1. When was tea first drunk
2. How was tea invented
3. Who is called “the saint of tea”
4. What is Cha Jing about
5. When was tea brought to other countries
3b
Presentation
Read the passage again and answer the questions.
1. When was tea first drunk
2. How was tea invented
3. Who is called “the saint of tea”
3b
It was first drunk about 5,000 years ago.
Some leaves from a tea plant fell into the boiling water when Shen Nong was boiling drinking water over an open fire. It produced a nice smell and tasted delicious. This is how tea was invented.
Lu Yu is called “the saint of tea”.
Presentation
Read the passage again and answer the questions.
4. What is Cha Jing about
5. When was tea brought to other countries
3b
It describes how tea plants were grown and used to make tea.
It was brought to Korea and Japan during the 6th and 7th centuries and
to England around 1600.
Did you know that tea, the most popular drink in the world(after water), was invented by accident Many people believe that tea was first drunk about 5,000 years ago. It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink. One day Shen Nong was boiling drinking water over an open fire. Some leaves from a tea plant fell into the water and remained there for some time. It produced a nice smell so he tasted the brown water. It was quite delicious, and so, one of the world’s favorite drinks was invented.
A few thousand years later, Lu Yu, “the saint of tea”, mentioned Shen Nong in his book Cha Jing. The book describes how tea plants were grown and used to make tea. It also discusses where the finest tea leaves were produced and what kinds of water were used.
It is believed that tea was brought to Korea and Japan during the 6th and 7th centuries. In England, tea didn’t appear until around 1660, but in less than 100 years, it had become the national drink. The tea trade from China to Western countries took place in the 19th century. This helped to spread the popularity of tea and the tea plant to more places around the world. Even though many people now know about tea culture, the Chinese are without doubt the ones who best understand the nature of tea.
An Accidental Invention
n. 统治者；支配者
据说
n. 贸易；交易
adj. 国家的；民族的
n. 饮品
boil v. 煮沸；烧开
remain v. 剩余
n.气味
Presentation
by accident 偶然；意外地
Point
1. How tea was invented by accident（教材P43 3a）
Language points
by accident相当于by chance，通常在句中作状语，也可以作表语。其反义短语是on
purpose“故意地”。
This piece of music has a lasting value though it is made up by accident.
Presentation
It is said that ...据说……
Point2
2. It is said that a Chinese ruler called Shen Nong ...（教材P43 3a）
Language points
It is said that...中的It作形式主语，真正的主语是that引导的从句。该结构相当于
“People say that…“。
It is said that she works as a director.
与此类似的结构还有：
It is believed that… 人们认为……
It is reported that… 据报道……
It is （well）known that… 众所周知……
Presentation
boil /b l/ v. 煮沸；烧开
Point
3. One day Shen Nong was boiling drinking water …（教材P43 3a）
Language points
boil在此处作及物动词；它也可作不及物动词，其后接温度时要用介词at。
boil 作动词，还可意为“（用开水）煮（食物）”。
Water usually boils at 100℃.
Can you help me boil dumplings
boiled water
boiling water
开水（形容水被烧开的状态）
沸水（形容水正在沸腾的状态）
Presentation
remain/ r 'me n/ v. 保持不变；剩余
Point
4. … and remained there for some time. （教材P43 3a）
Language points
（1）remain在此处作不及物动词，意为“剩余，遗留，继续存在”。
There are only ten minutes remaining.
（2）remain作不及物动词，还可表示“逗留；不离去”。
The plane remained on the ground.
Presentation
smell /smel/ n.气味 v. 发出......气味；闻到
Point
5. It produced a nice smell …（教材P43 3a）
Language points
（1）smell在此处作可数名词，意为“气味”。smell还可作不可数名词，意为“嗅觉”。
The flower has a sweet smell.
（2）smell还可作系动词，意为“有......气味，发出......气味”，后接形容词作表语。
The cheese cake smells so good that I can’t wait to eat it.
（3）smell也可作及物动词，意为“闻到，嗅到（气味）”。
I smelt something burning.
Presentation
national / n n l/ adj. 国家的；民族的
Point
6. … it had become the national drink.（教材P43 3a）
Language points
national作形容词，由“nation（n. 国家；民族） +-al（形容词后缀）”构成。
These buildings are part of our national heritage.
trade /tre d/ n. 贸易；交易 v.做买卖；从事贸易
Point1
7. The tea trade from China to Western countries took place in the 19th
century. （教材P43 3a）
（1）trade在此处作名词，意为“贸易；交易”，此时常用作不可数名词。
Trade between the two countries has increased.
（2）trade还可作动词，意为“做买卖；从事贸易”。常用结构：trade （in sth. ） with sb.与某人交易（某物）。
They had years of experience of trading with the West.
take place 发生；举行
take place为不及物动词短语，不能用于被动语态。指根据安排或计划发生，含有事先预料或计划的意思。
The 2022 Winter Olympics will take place in Beijing, China.
happen意为“发生”，为不及物动词，不能用于被动语态。指具体客观事件的发生，有偶然性，未能预见。
A car accident happened last night.
without doubt 毫无疑问；的确
Point
8. … the Chinese are without doubt the ones who best understand the
nature of tea.（教材P43 3a）
Language points
without doubt可与there is no doubt that进行同义句转换。其中doubt作名词，意为“疑问；疑惑” 。
He is without doubt the best teacher in our school.
There is no doubt that he is the best teacher in our school.
3c Complete the sentences with the correct forms of
the verbs in the box.
invent
drink
bring
produce
trade
1. One of the world's favorite drinks was _______by accident.
2. Tea was first ______ by Shen Nong 5, 000 years ago.
3. A nice smell was ________ when the tea leaves dropped into the hot water.
4. Tea was ________ to Korea and Japan during the 6th and 7th centuries.
5. Tea is now _______ between many different countries.
invented
drunk
produced
brought
traded
本文中对茶的描述
Let’s summarize.
本文中词性转换而词形不变的重要单词
本文中词性转换且词形也变的重要单词
tea
the most popular drink
the brown water
national drink
one of the world’s favorite drinks
producing a nice smell
…
drink
taste
plant
smell
trade
invent
invention
popular
popularity
Grammar Focus
Read the following sentences and find out the common features.
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: Alexander Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
一般过去时的被动语态
Grammar Focus
一般过去时的被动语态由“was/ were +及物动词的过去分词”构成。
The mobile phone has greatly influenced people’s life since it was invented.
These books were written for children.
一般过去时的被动语态的构成
Grammar Focus
句式 结构 例句
肯定句 主语+ was/ were +过去分词. The club was set up in 2010.
否定句 主语+ wasn’t/ weren’t +过去分词. 1 wasn’t told to attend the meeting yesterday.
一般疑问句及回答 Was/Were+主语+过去分词 肯定回答: Yes, 主语+ was/ were. 否定回答: No, 主语+wasn’t/ weren’t. — Were the trees planted last year
— Yes, they were./
No, they weren’t.
特殊疑问句 特殊疑问词+ was/were+主语+过去分词 When was the bridge completed
一般过去时的被动语态的句式
（1）含双宾语的主动结构变被动结构时，不要忽略间接宾语前的介词。
We gave some flowers to Miss Gao on Teachers’ Day.
→ Some flowers were given to Miss Gao on Teachers’ Day.
（2）含有动词短语的主动结构变被动结构时，不要漏掉短语中的介词或副词。
We handed in our homework last Friday.
→ Our homework was handed in last Friday (by us).
使用被动语态时的注意事项
（3）在含有使役动词make或感官动词（see, watch, notice, hear 等）的主动语态
的句子中，这些词后常跟省略to的动词不定式，但是改为被动语态时则要
把省去的to还原。
I saw him cross the road and enter the shop.
→ He was seen to cross the road and enter the shop (by me).
使用被动语态时的注意事项
（4）含双宾语的主动结构变为被动结构时，既可将间接宾语转化为主语，也可
将直接宾语转化为主语。若将间接宾语转化为主语，则保留直接宾语；若
将直接宾语转化为主语，则保留间接宾语，且在被保留的间接宾语前加上
介词to或for。
My mother gave me a pencil.
→ I was given a pencil by my mother.
→ A pencil was given to me by my mother.
使用被动语态时的注意事项
4a 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 these photos
________________________________________________
4. Our parents advised us not to go out alone.
_________________________________________________
5. Different writers translated the book into different languages.
_______________________________________________________
My camera was stolen (by someone) from my hotel room.
Where were these photos taken (by you)
We were advised not to go out alone(by our parents).
The book was translated into different languages (by different writers.)
The fridge was sold at a low price.
4b Complete the sentences with the correct forms of the verbs in the box.
eat lock
like ring
invite break
tell bring
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
4c Decide whether active or passive forms should be used
in these sentences. 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
将下列句子变为主动语态
1. Were these machines invented by Edison
_____ Edison _______ these machines
2. The post card was sent to Linda by Paul.
Paul _____ the post card ___ Linda.
3. America was discovered by Columbus.
Columbus __________ America.
Did invent
sent to
discovered
Exercises
对划线部分提问
1. Shoes with lights were used for seeing in the dark.
_____ ______ shoes with lights ______ for
2. Paper was invented in China almost a thousand years ago.
______ _____ paper _________ in China
used
What were
When was invented
Summary
1. Read and recite the new words and the passage in 3a.
2. Make sentences with the useful expressions： by accident, take place, without doubt, all of a sudden
Homework
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