九年级上册英语Unit 6 When was it invented?Section B课件（3课时 共84张PPT13+46+25张PPT）

When was it invented?
Section B
Unit 6
When was it invented?
Section B 1a-1e
Unit 6
根据句意选择方框中的单词并用其适当形式填空。

1．I don't like drinking lemon juice because it's too ．
2．The supermarket is usually crowded with lots of on weekends.
3．Jane likes cookies.They are dry，hard and easily broken (易碎的)．
4．The boy got to the top of the mountain in the ．
5．Don't add too much salt in the soup，or it will be too ．
sour
customers
crispy
end
salty
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet
crispy
salty
sour
crispy 脆的
salty 咸的
sour 酸的
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
1a
sweet
crispy
salty
sour
salty 咸的
sweet 甜的
Write the name of a different food after each word.
1b
sweet
crispy
salty
sour
banana
biscuit
pickles
orange
Listen and circle T for true or F for false.
1c
1. Potato chips were invented by mistake.
2. They were invented in 1863.
3. The customer thought the potatoes were not thin enough.
T F
T F

T F




错误地；无意中
1c
4. The customer said they were not salty enough.
5. George wanted to make the customer happy.
6. The customer was happy in the end.
T F

T F

T F




足够咸
顾客
最终；最后
1d
The History of Potato Chips
Listen again. Complete the sentences.
Do you know how potato chips were invented? Potato chips ______________ by a cook called George Crum. They were invented in ______. George Crum cut the potatoes really, really ______ and then cooked them for a long time until they were ___________. Finally he put lots of salt on them so they were _____________.
were invented
1853
thin
crispy
really salty
1e
Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
A: Did you know potato chips were invented by mistake?
B: Wow, I didn’t know that. Who invented them?
A: …
B: …
单项选择
1. —Sorry, I took your umbrella ______ mistake.
—It doesn’t matter.
A. with B. by C. at D. in
2. I know that potato chips ______ by George Crum.
A. invented B. was invented
C. are invented D. were invented
B
D
Exercise
3. Mom added salt to the soup, but it still wasn’t ____ .
A. enough sweet B. sweet enough
C. salty enough D. enough salty

4. The kind of soup should be boiled _____ a long time.
A. for B. in C. with D. at
C
A
5. Hold on to your dreams, and they may come true _______ .
A. at the end B. by the end
C. in the end D. on the end
C
When was it invented?
Section B 2a-2e
Unit 6
一般过去时被动语态
1. 结构：was/were + 过分
2. The work was finished yesterday .

否定：The work wasn’t finished yesterday .
一般疑问句： was the work finished yesterday
提问： when + was the work finished ?
1. The mobile phone has influenced people’s life a lot since it _________.
A. invents????? B. invented?????
C. is invented????? D. was invented

2. On June 11th, 2013,Shenzhou-10 carrying three astronauts _____ into space from the space center in Jiuquan. All the Chinese people are proud of its successful launch.
A. sent up??????????????? B. are sent up??????? ??C. was sent up?

3. This listening material, together with its CD-ROMs,???????? well.
A. sells??B. sell??C. is sold???D. are sold

4. The sports meeting _________next month.
A. will hold B. is going to hold C. will be held
D
C
A
C
5. —Excuse me. I'm looking for Be the Best of Yourself.
—Sorry. The book you ask for______ out.
A. is selling???? B. is sold??? C. was selling???? D. will be sold
6. Annie?______?to the party. She had a wonderful time with us.
??? A. invites?????? B. is invited??????
C. was invited?????? D. has invited
7. Many houses ______ in the earthquake of April 20, 2013 in Ya’an.
A. is destroyed?? B. are destroyed??
C was destroyed?? D. were destroyed
8. Han Han’s books are popular. They????????? by many teenagers.
A. is read??????? B. was read???????
C. are read???????? D. were read
B
C
D
C
Free talk
Famous player
history
How to play it?
games
popularity
mind map
n. 普及，流行
Do you know these basket heroes
Michael Jordan
Kobe Bryant
Yao Ming
仰慕
look up to
Shaquille O'Neal
LeBron James
2a
Do you like basketball?
Do you watch basketball games?
How much do you know about this sport?
Discuss the sport with your partner and share your ideas with the class.
2b
Read the passage quickly. What is the main idea of each paragraph?
MIND-MAPPING
Changing the information you read into a mind map may help you remember it more easily.
Learning Strategy
2b
Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise. It is over 100 years old and is played by more than 100 million people in over 200 countries. It is believed that the first basketball game in history was played on December 21, 1891. Then in 1936 in Berlin, it became an event at the Olympics.
Do You Know When Basketball Was Invented?

2b
Basketball was invented by a Canadian doctor named James Naismith, who was born in 1861. When he was a college teacher, he was asked to think of a game that could be played in the winter. Dr. Naismith created a game to be played inside on a hard floor. Dr. Naismith divided the men in his class into two teams and taught them to play his new game. Players on the same team must work together to get the ball in the other team’s basket. At the same time, they need to stop the competing team from getting the ball into their own basket.


2b
Today, the popularity of basketball has risen around the world, with many young people dreaming of becoming famous players. In China, you can sometimes see people playing basketball in parks, schools and even factories. Basketball has not only become a popular sport to play, but it has also become a popular sport to watch.

2b
Although America’s NBA games are the most famous, the CBA games are becoming more popular in China. The number of foreign players, including Chinese players, in the NBA has increased. There are also more and more foreign players in the CBA. Many young people look up to these basketball heroes and want to become like them. These stars encourage young people to work hard to achieve their dreams.

2b
Paragraph 1:
Introduction to basketball.
Paragraph 2:
How basketball was invented.
Paragraph 3:
The popularity of basketball in the world.
Main idea of each paragraph
floor
two
the ball
basket
More than 100 million
200
James Naismith
Berlin
December 21, 1891
1936
NBA
CBA
Scanning
P2
P3
P1
P1


1. Who invented basketball and how is it played?
James Naismith. It is played inside on a hard floor. There are two teams. Players on the same team must work together to get the ball in the other team’s basket. And they need to stop the competing team from getting the ball into their own basket.
Use the mind map to summarize what you and your partner remember about the development fo basketball. Use the following questions to help you.
2. When was the first basketball game in history played?
On December 21, 1891.
2d
3. Why were the Berlin Olympics important for basketball?
Because basketball became an Olympic event then.
4. What are the professional basketball groups in America and China?
NBA and CBA.
5. How popular is basketball?
It is over 100 years old and is played by more than 100 million people in over 200 countries.
2d
? What do you think of famous basketball players?
? Make a list of good and difficult things about being a famous basketball player.
2e
First, he can do things he likes best.
Second, he can earn a lot of money every year.
Third, he may have many fans, and gets a lot of attention wherever he goes.
Another thing, he can travel around the world, and meet many new friends.
But there are also some difficult things for him. For example, he must work very hard all the time.
He may get hurt in the hard games.
Basketball _____________ by James Naismith, a _________ doctor. It is ________ that the first basketball game __________ (play) on December 21, 1891. And then in 1936, basketball became an Olympic event at the Berlin ________.

Retelling
Let’s Retell
was invented
Canadian
believed
was played
Olympics
How to play basketball? Players ___________ (divide) into two teams. Players on the same team must work together to get the ball in the other team’s ______. At the same time, they need to ____ the competing team from _______ (get) the ball into their own basket.

Retelling
are divided
basket
getting
stop
Retelling
Today, basketball is played by _________ 100 million people in over 200 countries. Young people look _____ the basketball ______. They _________ becoming famous players, too. And the stars encourage them to work hard to ________ their dreams.

Retelling
more than
up to
heroes
dream of
achieve
Retelling
找短语
1. a much-loved and active sport
2. more than = over
3. It is believed that…
4. an event at the Olympics
5. divide… into…
6. at the same time
7. stop sb from doing sth
8. dream of doing sth.
9. see sb. doing sth.
10. not only… but also…
11. the number of
12. look up to
13. encourage sb. to do sth.
14. achieve one’s dream
1. 深受喜爱且活跃的运动
2. 超过
3. 人们相信…
4. 一个奥运项目
5. 把…分成…
6. 同时
7. 阻止某人做某事
8. 梦想做某事
9. 看见某人正在做某事
10. 不但…而且…
11. …的数量
12. 钦佩，仰慕
13. 鼓励某人做某事
14. 实现某人的梦想
Useful expressions
P2
P3
P1



Language Points
1. Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise.
篮球是一项备受热爱、充满活力的运动。为了娱乐和锻炼身体，很多人都喜欢打篮球。
much-loved (be loved very much )是一个合成形容词，意为“备受喜爱的; 深受爱戴的”。
?People around the world were feeling sorry to the death of the much-loved leader, Nelson Mandela.
世人都在为这位深受爱戴的领导人纳尔逊?曼德拉的去世而感到难过。

2. It is over 100 years old and is played by more than 100 million people in over 200 countries.
篮球运动有100多年的历史。200多个国家的一亿多人在打篮球。
over介词，意为“多于；超过”，在此相当于 more than。
?There are over one thousand students in the school.
在这所学校有一千多名学生。

拓展：
over的其他用法
① over作介词，还可意为“在……上方”，强调正上方，不接触，其反义词为under。 ?There is a bridge over the river.
河上有座桥。
② over用作副词，意为“结束”。
?Class is over.下课。
③与over相关的常见短语：
over there 在那边 get over 克服
go over 检查 all over the world 全世界
over and over again 多次；反复地
3. Basketball was invented by a Canadian doctor named James Naismith, who was born in 1861.
篮球是由加拿大一位名叫詹姆斯?奈史密斯的博士发明的。他出生于1861年。

(1)这是一个主从复合句。定语从句 who was born in 1861 修饰先行 词 James Naismith。另 外，过去分词短语named James Naismith作后置定语 ，修饰 doctor。

(2) Canadian 形容词，意为“加拿大的; 加拿大人的”。
Canadian 也作名词，意为“加拿大人”。
?Canadian culture is different from Chinese culture.
加拿大的文化有别于中国的文化。
? Many of my friends are Canadians.
我的很多朋友都是加拿大人。

4. When he was a college teacher, he was asked to think of a game that could be played in the winter.
在做大学老师的时候，他被要求想出 一种能在冬天进行的运动项目。
“could be played”为含有情态动词的被动语 态，其结构为“情态动词+ be +及物动词的过去分词”，否定形式为“情态动词+ not + be + 及物动词的过去分词”。
?All these must be finished in three days.
所有的这些必须在三日之内完成。
? Kids should not be allowed to drink.
小孩不应该被允许喝酒。

5. Dr. Naismith divided the men in his class into two teams and taught them to play his new game.
奈史密斯博士将他班里的男生分成两队并教他们玩他的新运动项目。
divide ... into意为“把……分开；把……划分为”。
? The teacher divided our class into four groups.
老师把我们班分成四个小组。
divide up意为“分配；分享”。
? The children divided up the candy among themselves.
孩子们把糖果分了。

6. At the same time, they need to stop the competing team from getting the ball into their own basket.
同时，他们需要阻止对方的球队抢到球投进他们自己的篮里。
stop sb. from doing slh.意为“阻止某人做某事”，相当于 prevent sb. from doing sth.，在主动语态中，两者中的from均可省略，但在被动语态中不可省略。
?No one can stop us (from) carrying out the plan.
没有人能阻止我们实施计划。
?The water must be prevented from being polluted by us.
我们必须保护水不受污染。

7. Today, the popularity of basketball has risen around the world, with many young people dreaming of becoming famous players.
如今，随着许多年轻人都梦想成为著名的篮球运动员，篮球在世界各地越来越普及。
(1) popularity名词，意为“受欢迎; 普及; 流行”，其形容词形式popular意为“受欢迎的”。
? Her books have grown in popularity.
她的书近来大受欢迎。

(2) rise不及物动词，意为“增加;提高;攀升;升起;站起来”。其过去式、过去分词分别为 rose 和 risen。
?The sun rises in the east and sets in the west.
太阳从东方升起，从西方落下。
rise 意为“增加；上升；站起来”，是不及物动词，不能用于被动语态。
raise 意为“提高;增加;举起”,是及 物动词。
? Meat prices are still rising. 肉的价格仍然在上涨。
? The man raised his voice and I heard what he said.
那个人提高了嗓音，我听见了他说的话。

【辨析】
(3)句中“with +宾语+现在分词”构成的复合结构作伴随状语。
? With winter coming on, it’s time to buy warm clothes.
冬天来了，是时候买保暖的衣服了。
“with+宾语+宾语补足语”构成with的复合结构，宾语补足语除了可以是现在分词外，还可以是介词短语、形容词、副词等。
?He came in with a smile on his face.
他面带微笑走了进来。（with+宾语+介词短语）
?Anderson left his house with the lights on.
安德森开着灯离开了家。（with+宾语+ 副词）

(4) dream of 意为“梦想;想象”，相当于dream about 。
?They dream of going to college.
他们梦想去上大学。
【拓展】dream的用法
①dream作及物动词时，后接名词、代词或that从句作宾语。
?He dreamed a sweet dream.
他做了一个美梦。
② dream作可数名词，意为“梦;梦想”。
? His dream will come true next year.
他的梦想明年将会实现。

8. Many young people look up to these basketball heroes and want to become like them.
许多年轻人崇拜这些篮球英雄，并且想成为像他们那样的人。
(l) look up to意为“钦佩;仰慕”。
?We all look up to the learned and modest professor.
我们都很尊敬那位博学而又谦逊的教授。
? He is a movie star whom I look up to.
他是我崇拜的电影明星。
look up to还可意为“抬头看；仰望”。
?He looked up to the sky and seemed to be thinking.
他抬头望向天空，好像在思考着什么。

(2) hero可数名词，意为“英雄；男主角”，其复数形式为在词尾加-es。
? He is a hero in my heart.
在我的心里他是个英雄。
【拓展】
其他常见以o结尾加-es变复数的名词。
Negro —Negroes (黑人）
potato — potatoes (土豆）
tomato —tomatoes (西红柿)

9. These stars encourage young people to work hard to achieve their dreams.
这些明星激励着年轻人为了实现他们的梦想而努力奋斗。
encourage动词，意为“鼓励；激励；支 持” 常用结构 encourage sb. to do sth.“鼓励某人做某事”。
? Parents should encourage children to do things by themselves.
父母应该鼓励孩子独立做事。

(2) achieve及物动词，意为“实现;完成”。
?He could not achieve his goal.
他未能实现他的目标。
achieve “实现；完成”，主语通常是人
come true “实现”，主语通常是梦想等
? I believe I can achieve my dream. 我相信我能实现我的梦想。
? I hope my dream will come true. 我希望我的梦想会实现。

【辨析】achieve 与 come true
一、根据句意及汉语提示完成单词。
1．There are lots of eggs in the (篮子)．

2．Qi Jiguang is regarded as a national (英雄)．

3．Her speech is (分开) into three parts.

4．The 32nd (奥运会) will be held in Tokyo in 2020.

5．I have a (加拿大的) uncle.His name is Peter.
basket
hero
divided
Olympics
Canadian
随堂测验
二、根据句意，选择方框中的单词并用其适当形式填空。
6．The boy wanted to be a(n) basketball player.

7．We should take an part in physical exercise.

8．With the of Internet，the safety of network was noticed more by people.

9．It is that what he said is true.

10．Nothing would stop him from (work) for the people.
professional
active
popularity
believed
working
三、单项选择。
( )11.The number of the teachers in our school ________ 60 and most of them ________ women.
A．is；are　　　 　B．are；is　　　 　C．are；are　　 　D．is；is
( )12.A year has four seasons and it ________ twelve different star signs.
A．divides into B．is dividing into
C．divided into D．is divided into
( )13.The Great Green Wall can stop the wind and sand ________ to the rich land in the south of China.(易错题)
A．move B．to move C．from moving D．moved
( )14.—To achieve a bright future，we should ________ study hard ________ keep in good health.
—I agree with you.(原创题)
A．not；but B．not only；but also
C．neither；nor D．either；or
( )15.The teacher often encourages us ________ hard.
A．study B．studying C．to study D．will study
A
D
C
B
C
四、根据汉语意思完成下列句子。
16．我们被分成了两组。
We two groups.
17．据说茶是偶然发明的。
tea was invented ．
18．王涛是一个优秀的学生，我非常钦佩他。
Wang Tao is an excellent student.I him a lot.
19．许多年轻人梦想成为NBA球员。
Many young men NBA players.
20．他是一位音乐教师，同时也是一位歌星。
He is a music teacher and he is also a singer.
are/were divided into
It's said that
by accident
look up to
dream of/about becoming
at the same time
When was it invented?
Section B 3a- Self Check
Unit 6
Color changing cup
As you pour in your hot drink, the color changes.
You can never chop your fingers off anymore.
Smart and creative inventions
It’s safe for young children to eat them.
Smart and creative inventions
Problem: ________________________
New invention: ____________________
What it is used for: _________________
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
a special pen
quickly taking notes in class
taking notes in class
3a
Now it’s your turn!
3b
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
This special pen was invented by Liu Jie. It has three colors and is used for…
Computer
Computers are becoming more and more important in our daily life. ① Do you know when the computer was invented ? ②
The computer was invented in 1946. At that time , it was huge. With the development of science and technology, the computer has grown smaller. Now there are many kinds of computers, such as personal computers and laptops. The computer is a very useful tool in our life.
For example ③ , it can send some messages to foreign friends by e-mail. What's more , it can share information with others through the World Wide Web. We can also listen to music or play the game on computers. It makes us relax.
It’s hard to imagine what our life would be like without computers. I think computers will be more convenient and they are going to change our life completely in the near future.④
点评：
① Computers are becoming more and more important in our daily life.
开门见山，点出主题。
② Do you know when the computer was
invented ?
语言过渡自然。通过一个疑问句，将写作
方向转到介绍计算机的发展史上。
③ for example, what‘s more 等短语的使用使得更有说服力。
④ I think computers will be more convenient
and they are going to change our life
completely in the near future.
对未来计算机提出展望， 以此收尾显得自
然流畅。
Self Check
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are nearly the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions ____________.
Complete the passage with the correct forms of the words in the box.
invent doubt mention website all of a sudden
invent
all of a sudden
1

So some people ______ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _________ usually ________ more than one inventor when giving information about inventions.
doubt
websites
mention

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.
Five eggs were used to make this big cake.
When was the personal computer invented?
We were asked not to run in the hallway.
The video was taken back to the store by someone.
Rewrite these sentences using the passive voice.
2
Find out information about an invention you would like to know more about and write sentences below.
Invention: _____________________________
When: ________________________________
Who: _________________________________
Purpose: ______________________________
null
null
3
Exercises
1. 错误地?????????
2. 偶然　 　　　　
3. 根据……；按照……?? ???
4. 用这种方法? ???????? 　　?
5. 用来做……? ???????? ???????? 　　? ?
6. 足够咸??? ?
7. 一个古老的中国传说???
8. 把…… 分成?????????
by mistake
by accident
according to… ????
in this way
be used for…
salty enough ?????
an ancient Chinese legend ?????? 　　? ?
divide...into ?
一、写出下列短语的英文表达。
二、单项选择
1. My mother told me that my homework must ____?on time.
A. finish? B. be finish
C. be finished　? D. finished?
2. The number of teachers in our school ____ 60 and a number of them ____ male teachers.
A. is; are B. are; is
C. am; are D. be; are
C
A
3. If it?____?tomorrow, we?____ go to the park.
A. rains; won’t? B. will rain; won’t
C. rains; don’t? D. will rain; will do
4. All the books will ____ to the children who live in the small village.
A. be sent B. sent 　C. be send　 D. send
5. —Do you know the lady____ is interviewing our headmaster?
—Yes, she is a journalist from CCTV.
A. which? B. who　 C. whom　 ?D. whose
A
A
B

三、根据中文提示完成句子。
1. There were many famous_________ (发明) in ancient China, and paper was one of them.
2. I don’t like this kind of potato chips because they are not _______ (脆的).
3. Silk is?_________ (生产) in Hangzhou.
4. The conductor kept?________ (提供) us hot water on the train.
inventions
crispy
produced
offer
Don’t drink the soup. It smells _____.
A. nice B. delicious C. salty D. terrible
2.About over 80 years ago, Mickey Mouse first ed in the cartoon. ____
A. more than B. less than
C. at most D. at least
D
A
一. 单项选择。
课后作业
3.The Great Green Wall can stop the wind and sand _____ to the rich
land in the south of China.
A. move B. to move C. from moving
4. Miss Wang divided her students _____ two
groups.
A. for B. into C. at D. from
C
B
5. I took the wrong train ______. I didn’t even
know it until half an hour later.
A. by mistakes B. by mistake
C. with mistake D. with mistakes
6. I found the key ______ when I was cleaning
the room.
A. with accident B. by accident
C. with mistake D. by mistake
B
B
二.用所给词的适当形式填空。
daily
1. Now computers are widely used in our
______ (day) lives.
2. He mentioned _________ (hear) from her
often.
3.The soup is very _______ (salt) because my
mother put lots of _____ (salt) on it.
4. Since then, the ___________ ( popular ) of
basketball has risen quickly.
5. I have worked here for _______(near) two
years.
hearing
salty
salt
popularity
nearly