(共28张PPT)
B3U3 The world of science
Period 5 Developing ideas
1. To get to know something about Benjamin Franklin and his famous kite experiment.
2. To learn something about an essay title.
3. To learn how to give an statement and how to support it.
4. To learn some words and expressions.
Teaching objectives
Who is he
Pre-reading
Benjamin Franklin
Read the short introduction to Benjamin Franklin and share any other information you know about him.
Read the short introduction to Benjamin Franklin and share any other information you know about him.
Benjamin Franklin (1706-1790) was one of the Founding Fathers of the United States and helped draft the Declaration of Independence and the US Constitution.
Apart from being a successful statesman, he was also well known as a leading American author, printer and publisher, successful
diplomat, creative scientist and inventor.
More about Benjamin Franklin
Pre-reading
What can you infer from the essay title
The essay title is explicit [ k spl s t], making it clear that the story about Franklin's experiment may be fictional.
Read for general ideas
Read the passage and find out
1. the author’s view on the story of the experiment.
The story may be fiction instead of fact.
2. the genre of the passage.
It is an argumentative essay.
Question: how does the author support his view
P42-2
Franklin’s experiment aimed to prove if lightning was really
produced by electricity or something else.
While-reading
Read the para 1-2 and find out what Franklin’s experiment aimed to prove.
Para. 2 The story of Franklin’s (kite lightening) experiment
Aim
Materials
Procedure
Result
Conclusion
To find out __________________________________
a kite, a string, a metal key
1. ___ a string __ a kite and ______ a metal key __ the string;
2. ___ the kite during ________;
3. _____ the key with _________.
A flash of lightning hits the kite and electricity is conducted through the string to the key. He gets an electric shock.
The lightning is a form of electricity.
whether lightning is a form of electricity
Tie
to
attach
to
Fly
a storm
Touch
the finger
While-reading
Read the para 2 and fill in the experiment.
Para. 3 The general public’s view on the story
How popular
Why
Schools have taught the story of Franklin’s lightning experiment for many years.
Schoolchildren have been amazed at and inspired by the story and they have realised the importance of scientific experiment through the experiment.
While-reading
Read the para 3 and fill in the experiment.
Para. 4-5 Scientists’ view on the story and such stories
What is true
What is false
Why do scientists think so
Why do scientists question accepted ideas
Franklin’s experiment did take place.
The detail about the string and the key is true.
Franklin did not touch the key.
He would certainly have died from the electric shock if he had touched the key.
They want to establish the facts.
While-reading
Read the para 4-5 and fill in the experiment.
Why does the author mention the story about the apple falling on
Newton’s head in the text
The author gives another example to demonstrate the argument of the passage that stories behind inventions may not be true.
While-reading
Read the para 6 and answer the following question:
( ) Franklin’s spirit of scientific exploration is still
considered an inspiration.
( ) People are amazed at and inspired by Franklin’s
experiment.
( ) Scientists question what really happened in
Franklin’s experiment.
3
1
2
While-reading
Read the para 3-6 and Number the statements to show how people’s attitudes towards Franklin’s experiment have changed.(P44-3)
Learn to analyze an essay.
The title contains a question being answered in the essay.
Introduction
What is the experiment
People's attitudes have changed over years.
Conclusion
More about Ben Franklin and his Kite
Post-reading:
Think share(P13)
1. Do you think it matters that Franklin’s experiment might
not be true Why
2. What is your opinion about the statement "…we should not always believe everything we read or hear - even if it is a great story"
3. What qualities do you think a great scientist should have
4. In what ways do scientists contribute to society
Post-reading:
Think share(P13)
3.What qualities do you think a great scientist should have
As a great scientist, he or she should have more than one good quality, such as being smart, objective, persistent, curious, hard-working, energetic, confident, brave, imaginative, devoted and so on.
Post-reading:
Think share(P13)
4. In what ways do scientists contribute to society
Firstly, scientific discoveries promote the development of our society.
Secondly, the contributions of scientists in medicine extend our life span.
Thirdly, scientists have invented a lot of surprising tools that fundamentally improve our living standards.
Post-reading:
Group work. (P45-4)
Explain your understanding of the saying “Seeing is believing”, and then give a talk about it. You may use information in the passage as examples.
Post-reading:
Group work. (P45-4)
1. Make notes about your understanding of the saying and list supporting details.
Post-reading:
Group work. (P45-4)
1. Make notes about your understanding of the saying and list supporting details.
2. Organise your talk following the steps below.
· Start your talk by explaining how you understand this saying.
· Explain why you think this way. Use the notes you have made to
support your ideas.
· End your talk by summarising your points.
3. Give your talk to the class.
As the old Chinese saying goes, “What you hear may be false, but what you see is true.” We often easily believe in what we see without doubt, but as a matter of fact, it is not always so convincing.
1. New research suggests that the story of Franklin's experiment may be fictionion.
2. Some scientists question the story about the apple that fell on Newton's head.
Reference Text
Personally, we can not be content with what we see or hear. As the old saying goes, “Practice is the sole criterion for testing truth.”
1
2
3
4
5
6
7
8
9
10
Important lexical chunks
approach to
be amazed by
tie a piece of string to the kite
a form of electricity
look for the truth
scientific discoveries and inventions
question accepted ideas
die from the electric shock
come up with the theory of gravity
a spirit of scientific exploration
……的方法
对……感到吃惊
把一根绳子系在风筝上
电的一种形式
寻求真理
科学发现和发明
质疑已接受的观点
死于电击
提出他的万有引力定律
科学探索
Important sentences
1.He raised the kite with a piece of string tied to it.
2. More than one generation of schoolchildren has been amazed by his bravery and his scientific approach to looking for the truth.
3. Franklin, along with many other scientists, has inspired us ...
Important sentences
4. But scientists all agree that if Franklin had actually touched the sky, he would certainly have died from the electric shock.
5. Admittedly, fiction is often more interesting than the truth.
adv.诚然,确实
adv.修饰句子
Write an essay on the importance of honesty following the steps below.
Explain what honesty is.
Give reasons for the importance of being honest.
Support your reasons with examples.
End with your conclusion.
Homework: