Unit 6 When was it invented Section B（教学课件）（共44页PPT，无素材）初中英语人教版九年级全一册

(共43张PPT)
Unit 6
When was it invented？
Section B
Lead-in
What kind of snacks do you like to eat
Sweet Crispy Salty Sour Spicy
1a
The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
sweet crispy salty sour
crispy
salty
sour
sweet
salty
1b
Write the name of a different food after each word.
sweet ____________________________
crispy ____________________________
salty ____________________________
sour ____________________________
banana
candy
cake
potato chips
cookie
Salted duck egg
hum
lemon
prune
1c
Listen and circle T for true or F for false.
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
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
1. Who invented potato chips
2. When were they invented
3. What did the custom order at the restaurant
4. What did the custom think of the potato chips George cooked at first
Before listening, think these questions:
1d
Listen again. Complete the sentences.
The History of Potato Chips
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.
Do you like playing the basketball
Pre-reading
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 yourideas with the class.
2b
Read the passage quickly. What is the main idea of each paragraph
Paragraph One:
____________________________________
Paragraph Two:
____________________________________
Paragraph Three:
_____________________________________
The main history of basketball.
How the basketball was invented by James.
The popularity of basketball around the world.
2c
Complete the mind map with the information in the passage. What else can you add to the mind map
Development
invented by ______________
first game on ________________
became Olympic event in ______ in the year _____
most famous games: _____
popular games in China: _____
James Naismith
December 21, 1891
Berlin
1936
NBA
CBA
played inside on a hard _____
____ teams
get _______ into other team’s ______
Game
floor
two
the ball
basket
Popularity
played by __________________ people
over ____ countries
more than 100 million
200
2d
Use the mind map to summarize what you and your partner remember about the development of basketball. Use the following questions to help you.
1. Who invented basketball and how is it played
Basketball was invented by a Canadian doctor named James Naismith. Players were divided into two teams. 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.
2. When was the first basketball game in history played
3. Why were the Berlin Olympics important for basketball
4. What are the professional basketball groups in America and China
On December 21, 1891.
Because it became an event at the Olympics.
It’s NBA in America and CBA in China.
5. How popular is basketball
Today, the popularity of basketball has risen around the world, with many young people dreaming of becoming famous players.
Language Points
1. Basketball is a much-loved and active sport ... 篮球是一项备受热爱、充满活力的运动……
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是介词，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。
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是形容词，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”。
5.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是动词，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是及物动词，意为“实现;完成”。
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。
2e
What do you think of famous basketball players Make a list of good and difficult things about being a famous basketball player.
First, he can do things he likes best.
Second, he can earn a lot of money every year.
Writing
【写作话题】
本单元围绕“inventions 这一话题展开讨论。谈论该话题有助于了解科学的发展，培养创新意识，学习发明家不畏艰难、勇于探索的精神。由于该话题谈论的是有关发明或发明家的故事，所以在这类作文中常常使用过去时态和被动语态
【写作技巧】
(1)介绍一项发明及其发展时可以写出发明时间、地点发明者及其用途等主要内容
(2)常用句型
It was invented in...
It was invented by....
It's used for...
3a
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
Problem: ________________________
New invention: ____________________
What it is used for: _________________
quickly taking notes in class
a special pen
taking notes in class
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 …
Self Check
Complete the passage with the correct
forms of the words in the box.
invent, doubt, mention, website, all of a sudden
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 _____________. So some people _____ whether the inventor came up with the idea himself or herself.
invent
all of a sudden
doubt
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.
websites
mention
2 Rewrite these sentences using the passive voice.
1. Someone stole my watch.
_________________________________
2. They used five eggs to make this big cake.
__________________________________
3. When did they invent the personal computer
__________________________________
__________________________________
My watch was stolen (by someone).
Five eggs were used to make this big cake.
When was the personal computer invented
4. They asked us not to run in the hallway.
__________________________________
__________________________________
5. Someone took the video back to the store.
__________________________________
__________________________________
We were asked not to run in the hallway (by them).
The video was taken back to the store (by someone).
3 Find out information about an invention you would like to know more about and write sentences below.
Invention: _________________________
When: _________________________
Who: _________________________
Purpose: _________________________
Vocabulary
1. divide
divide...into...与 separate...into...同义 意为“把......分成......"，此短语可以用于被动语态即be divided into...意为“被分成......”
练习：He _______ us into four groups.
divided
Vocabulary
2. including
include 动词，意为”包括，包含;把......算在内
included 形容词(仅用于名词后)意为”包括在内的
练习：The band played many songs, ________ some of my favorites.
including
Vocabulary
3. by mistake
make a mistake/ make mistakes 犯错误
make a mistake about 误解
mistake...for...把......错认成
练习：He took my book ________.
by mistake
Vocabulary
4. at the same time
还示“尽管如此;虽然;但是”
练习：You can do anything you want, but not everything ______________.
at the same time
Vocabulary
5. look up to
“将......尊为(榜样等)”之意，常与as连用
练习：They all _________ their teacher.
look up to