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(共27张PPT)
Unit 4 Topic 1
When was it invented
Section B
( )1. I ___ play with telephone unless I finished his homework.
A. was allowed to B. was not allowed to C. allow to
( )2. We all know that paper ___wood.
A. is made of B. is made into C. is made from
( )3. This kind of machine ___in 2006.
A. is invented B. is made C. was invented
( )4. A(An)___is used for taking photos.
A .Camera B. Lift C. MP3 player
( )5. We should spend more time ___because it’s too important.
A .to learn English B. learning English C. in English
I. Choose the right answer. You can do it.
B
C
C
A
B
Review
1. The chopsticks are made _____ bamboo.
2. The red wine is made _____ grapes.
3. This delicious cake was made _____ my mother.
4. Glasses are made _____ glass.
5. Our group is made up _____ four students.
6. That kind of machine is made _____ China.
II. Fill in the blanks with the right preposition.
of
from
of
of
by
in
Review
Who’s he
Thomas Edison
Guglielmo Marconi
Wilbur and Orville Wright
Let's play a guessing game.
Guess the inventions !
It is made of metal and plastic.
It was first made in America around 1975.
When we travel, we usually take it with us.
It is used to take photos.
What is it
It is made of plastic.
It is very small and you can put it in your pocket.
It was made in America in 1973 first.
It is used for communicating.
You can also use it to call your friends, listen to
music, play games and so on.
What is it
It is very thin and light.
It was first made in China in Han Dynasty(汉朝).
It is made from wood.
It is used for writing on.
What is it
It is made of metal and glass.
It was made by Thomas Edison first.
When the room is dark, we can use it to make the room bright.
light bulb
What is it
/b lb/ n. 电灯泡
( ) 1. Where are Michael and Jane
A. In the science museum. B. At the school library.
C. In the zoo. D. In the park.
( ) 2. Which object（物品） is not mentioned in the conversation
A. Light bulb. B. Airplane.
C. Television. D. Radio.
listen to 1a and choose the correct answers.
A
C
1b
Watch and follow
Read 1a and complete the table.
Invention Inventor Year
light bulb
Guglielmo Marconi
1903
radio
airplane
Thomas
Edison
Wilbur and
Orville Wright
1879
1895
1c
Look, listen and say.
When was it invented
Who invented it
Look, a light bulb!
In 1897,
Thomas Edison.
1a
Michael: Look, a light bulb!
Jane: Yean. It is widely used by people everywhere. Do you know when it was invented
Michael: It was invented in 1879.
Jane: Who invented it
Michael: Thomas Edison. It's said that he invented more than two thousand things during his life.
Jane: What about the radio.
Michael: The radio was invented by Guglielmo Marconi in 1895. Jane,let's go this way.
Look! An airplane,but it's different from today's.
Jane: Yes. It was invented by Wilbur and Orville Wright in1903.
被广泛使用
1. It’s said that he invented more than two thousand things during his life.
据说，爱迪生一生中有两千多种发明。
（1）It’s said that... “据说......” (It是形式主语，that引导的从句是真正的主语) 类似的还有：
It’s reported that... “据报道......”
It’s believed that... “大家都相信......”
（2）during one’s life = in one’s life “在某人的一生中”
eg. Lu Xun wrote many famous articles in his life.
（3）invent v. “发明，创造”。
名词形式为invention “发明”，inventor “发明家”
Language points
Michael: Look, a light bulb!
Jane: Yean. It is widely used by people everywhere. Do you know when it was invented
Michael: It was invented in 1879.
Jane: Who invented it
Michael: Thomas Edison. It's said that he invented more than two thousand things during his life.
Jane: What about the radio.
Michael: The radio was invented by Guglielmo Marconi in 1895. Jane,let's go this way.
Look! An airplane, but it's different from today's.
Jane: Yes. It was invented by Wilbur and Orville Wright in1903.
be different from... 与......不同
be the same as.... 与......相同
come /go this way 走这边
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
A: What are these
B:…
A: When were they produced first
B:…
A: What were they made of
B:…
Do you know
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
现在完成时的被动语态：has/have been + 动词的过去分词
not only...but also... 不仅......而且......
连接两个主语时，谓语用就近原则。
Listen to the three passages. Match the pictures with the following information.
3
Invention
A. Karl Benz
C. Alexander Graham Bell
B. John Baird
Inventor
Year
a.1926
b.1876
c.1885
Read the following words. Listen and check the vowels.
rocket cotton hospital model
satellite camera laptop plastic
4a
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.
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.
4b
Find out the key phrases .
1. 据说......
2. 超过，多于
3. 在某人的一生中
4. 走这边
5. 与......不同
6. 目的是；为了
7. 不但......而且......
（连接主语时遵循“就近原则”）
8. 受到.......的欢迎
It’s said that...
more than = over
during one’s life
go this way
be different from
so that + 句子
not only...but also...
be popular with sb.
天才就是1％的灵感加上99％的汗水。
—— 爱迪生
Genius is 1% inspiration and 99% perspiration.
summary
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.
Homework
Read 1a.
Memorize the useful expressions and key sentences which we learn today.
Finish Section B in your workbook.
Preview Section C.
Thank you!

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