Unit 4 Topic 1 When was it invented Section B 课件＋音频(共20张PPT，含内嵌视频) 仁爱版九年级上册

(共20张PPT)
Unit 4 Topic 1
When was it invented
Section B
能进一步巩固一般过去时的被动语态
02
能熟悉并正确运用本课时的重点单词和短语
01
能用英语谈论各项发明
03
学习目标
It is small, so you can put it into your pocket. Wherever you go, you can use it to talk with your friends and your family far away.
mobile phone
It can be used for working or studying. It looks like a TV, but it isn’t a TV.
Modern inventions in the world
Can you guess what modern inventions they are
computer
新课讲授
Can you guess what modern inventions they are
Modern inventions in the world
It looks like a pear, but it isn’t a kind of fruit. It is used for giving light in the dark.
A:When was it invented
B: It was invented in 1897.
A: Who invented it
B:It was invented by Thomas Edison.
a light bulb
the first radio
modern radio
--Who invented the radio
--Guglielmo Marconi.
[mɑ:'k uni]
The first radio is quite different from today’s.
Wilbur and Orville Wright.
invented the first airplane.
The first airplane is quite different from today’s, too.
Modern inventions in the world
Listen to 1a and choose the correct answer.
( ) 1. Which object is not mentioned in the conversation
A. Light bulb. B. Airplane
C. Television. D. Radio.
( ) 2. How many things did Thomas Edison invent during his life
A. More than 2000 B. Less than 2000
C. More than 200 D. Less than 200
( ) 3. Where are Michael and Jane
A. In the science museum. B. At the school library.
C. In the zoo. D. In the park.
C
A
A
1b
Listening:
Read 1a again and complete the table.
Invention Inventor Year
light bulb
Guglielmo Marconi
1903
radio
airplane
Thomas Edison
Wilbur and
Orville Wright
1879
1895
1c
1.It is widely used by people everywhere.
电灯在各地被 人们广泛的使用。
be used by… 意为“被……使用”by后接人或物（强调使用者 ）
Recorders often are used by English teacher.
be used for ... 被用来……是由“use sth. for sth. / doing sth.”结构转变而来,介词for在这里表示用途或作用, 后面可以接名词、代词或动词-ing形式。
e.g. This machine can be used for cutting grass.这个机器可以被用来割草。
be used as意为“被用作为……，被作为……使用”
e.g. English is used as a foreign language in China.
Language points
2.It’s said that he invented more than two thousand things during his life.
据说他（托马斯.爱迪生）一生中发明了两千多种东西。
It’s said that…据说……
据说他活了100多岁。It’s said that she lived to be over100 years.
it是形式主语，真正主语是that引导的从句。
e.g. It is said that you have sent him three letters.
据说你已经给他发了三封信。
类似的结构还有: It’s reported that...据报道……。
e.g. It’s reported that China will send up Shenzhou Ⅷ into space in a few years.据报道中国几年后将向太空发射神舟八号。
during one’s life 某人一生，相当于in one’s life。
e.g. Lei Feng did a lot of good things during his life.
雷锋在他一生中做了许多好事。
3 let's go this way.
go this way 走这边，相当于take/come this way。
4 but it's different from today's.
be different from 与…不同
My pen is different from you.我的笔和你的不同。
Watch the flash of 1a, Then act out the dialogue in pairs.
Discuss with your classmates the inventions listed in 1c. Let them guess which invention you are describing.
You may begin like this:
It is widely used by people everywhere. It was invented in 1879 by Thomas Edison. It’s said that…
1d
Do you know anything about jeans
Jeans
Fill in the blanks with the proper forms of the given words.
The first jeans were produced in 1855. At that time, they ________________(not call ) jeans and they were just hard-wearing pants designed for workers. The pants _____________ (make ) of the brown cloth. This kind of cloth ______ usually ________(use) for making tents. Nowadays, their materials have been changed so that it feels more comfortable. And many different jeans styles _______ also ________(create). They _______________( design) not only for workers but also for teenagers and women. Later jeans are popular all over the world.
were not called
were made
was
used
are
created
are designed
2
Listen and guess what modern inventions they are
Presentation
A. Karl Benz
C. Alexander Graham Bell
B. John Baird
Invention
Inventor
Year
a.1926
b.1876
c.1885
Listen to the three passages. Match the pictures with the following information.
3
Read the following words. Listen and check the vowels.
4a
rocket cotton hospital model
satellite camera laptop plastic
Listen and read the following sentences aloud, paying attention to the stress and intonation. Then use the words in 4a to make up similar conversations.
4b
A: `When was the `digital camera `developed
B: It was `developed in the `1970s.
A: Is the `digital camera `developed in `Korea
B: `No.
A: `Where was it `developed
B: It was `developed in `Japan.
课堂总结
We learn: 1.Some words: bulb, airplane, hard-wearing,
Korea
2. Some phrases: be used by, more
than, be different from
3. Some sentences:
It’s said that he invented more than two
thousand things during his life.
We can: 1.Use the simple past passive voice:
Do you know when it was invented
It was invented in 1879.
2.Talk about the inventors of some great inventions.
Recite 1a.
2. Write a short passage about an invention after class.