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(共27张PPT)
Section A 3a-3d
通过本节课的学习，同学们将能：
1. 理解对话大意，梳理“发明者、发明时间、发明影响”三类关键信息；完成发明主题的口语介绍，语法准确、表达流畅。
2. 了解收音机的发明历史，感受发明家的创新精神，树立科学探究意识，理解科技改变世界的价值。
3. 通过梳理发明信息，培养信息定位、归纳与逻辑梳理的能力。
4. 掌握“读前预测—读中定位—读后归纳”的阅读策略，提升自主阅读能力；学会用思维导图整理信息，提升结构化
表达与合作学习能力。
compass
gunpowder
printing
papermaking
The Four Great Inventions have changed people’s lives a lot.
Warming-up
These inventions make our lives easy and convenient.
plane
This invention is made of metal.
This invention looks like a bird.
It makes it possible for people to fly to different places around the world.
It is powered by an engine and is flown by a pilot.
Can you guess what modern invention it is
Guessing game
This invention can help people do some daily work.
It is helpful for housewives.
The machine can move something that you put into it.
It needs soap and water to wash something in it.
washing machine
Can you guess what modern invention it is
It is small, so you can put it in your pocket. Wherever you go, you can use it to talk with your friends and your family far away.
mobile phone
Can you guess what modern inventions they are
computer
It can be used for working or studying.
It looks like a TV, but it isn’t a TV.
Can you guess what modern invention it is
It is small and easy to carry.
It has a lens in the front.
You can use it to take photos of beautiful places and happy moments.
It helps you keep memories forever.
It looks like a small box with a big “eye”.
camera
Lead in
Before smartphones and the internet, what was the most common way for people to listen to news and music at home
We all know the radio was the most common way to listen to news and music. But do you know that some people think the radio is the most useful invention of all time Next, let’s see what Peter and Fu Xing think about this question in our 3a dialogue.
Prediction
Look at the picture and answer the questions.
A man, some old machines.
What do you think the man is doing Is he an inventor
He is working on an invention. Yes, I think he is an inventor.
What invention do you think he invented
Now let’s read the conversation and see if your guesses are right. Let’s read carefully and check our predictions one by one!”
What can you see in it
Skimming
1.What is the main topic of the conversation ( )
A. The history of television.
B. The most useful invention of all time.
C. How to send messages across the ocean.
D. The development of music.
B
3a
Read the conversation. What does Peter think is the most useful invention of all time
Fu Xing: What do you think is the most useful invention of all time, Peter
Peter: It has to be the radio.
Fu Xing: The radio Why
Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds.
Fu Xing: Right. Who was the inventor
Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time.
Fu Xing: Wow! That was quite a distance at that time.
Peter: Yeah. And because of the radio, some other important inventions
were developed as well.
Fu Xing: Like the television
Peter: That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world.
Peter thinks the most useful invention of all time is the radio.
Read the conversation and decide if the following statements are True (T) or False (F)．
Careful reading
T
T
T
F
F
F
F
1. Peter thinks the radio is the most useful invention of all time.( )
2. Before the radio was invented, news spread very quickly around the world.( )
3. The radio made the world feel “smaller” because news could travel much faster.( )
4. Guglielmo Marconi was a French inventor who developed the radio.( )
5. Marconi first developed the idea of the radio in the 1900s.( )
6. In 1901, a radio message was sent across the Atlantic Ocean for the first time.( )
7. Peter says the radio had no influence on other important inventions.( )
3b
Read again and complete the chart.
The radio
Guglielmo Marconi.
In 1901.
It made news spread faster.
It helped develop some other important inventions.
It changed how people enjoy music.
3c
Listen to the conversation. Pay attention to how the key information is stressed. Then role-play the conversation.
Fu Xing: What do you think is the most useful invention of all time, Peter
Peter: It has to be the radio.
Fu Xing: The radio Why
Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds.
Fu Xing: Right. Who was the inventor
Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time.
Fu Xing: Wow! That was quite a distance at that time.
Peter: Yeah. And because of the radio, some other important inventions were developed as well.
Fu Xing: Like the television
Peter: That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world.
Then role-play the conversation.
What do you think is the most useful invention of all time, Peter
It has to be the radio.
The radio Why
Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds.
Right. Who was the inventor
An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time.
Wow! That was quite a distance at that time.
Yeah. And because of the radio, some other important inventions were developed as well.
Like the television
That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world.
Show Time
Assessment（评价量表） 评价
语音语调：发音清楚，关键信息有重读
流利自然
合作互动：两人互动自然，有眼神交流
3d
Choose another invention that you think is the most important and make a mind map about it.
Computer
invented in 1946, widely used, small and convenient
Past: slow, by hand, no Internet
Now: fast, online, convenient
save time, easy to study, connect the world, improve work
3d
Then describe it to a partner.
Take turns to describe your invention according to your mind map. Each of you should speak for at least 1 minute.
Your partner listens carefully and can ask one question (for example: What else can it do ).
After both of you finish, use the peer assessment scale to give your partner a score and one specific suggestion.
Work in pairs.
Assessment（评价量表） 评价维度 评价标准（星级★） 评分
内容完整 能说出发明名称、功能、影响 3 个要点★★★★★
句型正确 会用 It allows people to... 等核心句型★★★★★
表达流畅 卡顿少，能和同伴自然交流★★★★★
Sample
I think the computer is the most important invention of all time.
It was invented in 1946, and now it is widely used. It’s small and convenient. It allows people to calculate numbers, store information and send emails easily.
Before computers, people did all the work by hand. It was slow and tiring, and there was no Internet. Now we can work fast, go online and do many things conveniently.
The computer saves us a lot of time. It makes study easier, connects the world and improves our work. It really changes our lives.
Language points
1. What do you think is the most useful invention of all time, Peter 彼得，你认为有史以来最有用的发明是什么？
(1) invention n. 发明；创意
① 作可数名词：表示具体的“发明物”。
短语：an invention 一项发明；many inventions 许多发明。
e.g. Edison had many inventions in his life.爱迪生一生有许多发明。
② 作不可数名词：表示抽象的“发明、创造”行为。
e.g. Invention needs imagination.发明创造需要想象力。
(2) of all time含义：“有史以来；空前的”。介词短语，在句中作定语，修饰前面的名词，常与最高级连用，表示“有史以来最······的”。
e.g. He is one of the greatest players of all time.他是有史以来最伟大的球员之一。
【对点练习】
1. Paper-making is one of ______ of ancient China.
A. great invention B. the greatest inventions C. greatest inventions D. a great invention
2. Yao Ming is one of the best basketball players ______.
A. of all time B. at times C. in time D. on time
B
A
2. in seconds 在几秒钟内；片刻之间；转眼间
原文再现：Suddenly, news could be spread around the world in seconds.突然间，新闻能在几秒钟内传遍全世界。
e.g. The fire was out in seconds.大火几秒钟就被扑灭了。
e.g. He finished the work in seconds.他片刻就完成了这项工作。
【对点练习】
1. The story spread across the school ______.
A. in second B. in seconds C. on seconds D. for second
2. 他几秒钟就算出了这道数学题。
He worked out the math problem __________ __________.
B
in seconds
3. have an effect on 对······有影响
原文再现：It also had a big effect on music.它对音乐也产生了巨大的影响。
(1) have an effect on...，固定搭配，介词必须用on。
(2) have a(n)＋形容词＋effect on sb./sth. 对某人/某物有······样的影响
(3) have a big effect on“对……产生很大影响；对······有重大作用”。
同义替换：have a great influence on...。
e.g. Reading books has a good effect on our study.读书对我们的学习有很好的影响。
【对点练习】
1. 老师的话对我产生了很大的影响。
The teacher’s words __________ __________ __________ __________ on me.
2. 熬夜对你的健康有坏的影响。
Staying up late __________ __________ __________ __________ __________ your health.
had a big effect
has a bad effect on
Exercises
1. The radio ______ by Marconi in 1901.
A. invents B. invented C. was invented D. is invented
2. The radio had a big effect ______ music and the way people got news.
A. on B. in C. at D. with
3. —What invention do you think is the most useful of all time
—It ______ be the mobile phone. It changed our life so much.
A. can B. might C. has to D. should
4. A radio message ______ across the Atlantic Ocean for the first time in 1901.
A. sent B. was sent C. is sent D. sends
5. The radio made it much easier for people ______ music from artists around the world.
A. enjoy B. to enjoy C. enjoying D. enjoyed
C
B
A
C
B
一、单项选择
二、用括号内单词的适当形式填空
1. The radio made it much ____________ (fast) to spread news around the wrold.
2. Before the radio, information travelled very ____________ (slow).
3. Marconi was an Italian ____________ (invent).
4. The radio had a big ____________ (affect) on music and other inventions.
5. News could ____________ (spread) around the world in seconds with the help
of the radio.
faster
slowly
inventor
effect
be spread
1. 改编课本对话，将 “radio” 替换为 “TV”，补全对话内容，重点体现 TV 的发明者、发明时间与影响，不少于 5 轮对话。
2. 录制一段 1 分钟的口语介绍视频，向家人介绍你选择的发明，要求：重点突出关键信息的重读；
包含发明者、时间、影响三个部分；
结尾加上一句 “为什么它对我来说很重要” 的个人观点。
Thanks

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