Unit 3 The world of science Developing ideas课件

(共17张PPT)
p42
By the end of this period, you will be able to:
understand the content and the structure of the passage;
tell the specific information about Franklin’s experiment;
develop the basic scientific thoughts and scientific exploring spirit.
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Who is he
Pre-reading
He was one of the founding fathers of the US.
He helped draft the Declaration of Independence.(《独立宣言》)
He was a successful statesman and a leading author, printer, publisher, diplomat, creative scientist and inventor.
Read the introduction to Benjamin Franklin.
Do you know Franklin’s kite experiment
What is the weather like
What is the taller man doing
What are the stuff circled
Learning to learn
An essay title often contains an explicit(直截了当的) or implicit (含蓄的) question which your essay should focus on answering. For example, the title “ Franklin’s Experiment: How Much Is True ” makes it clear what question is being answered within the essay.
Let's read the passage !
A．The story of Franklin’s experiment is true or not.
B．The aim of Franklin’s experiment.
C．The procedure of Franklin’s experiment.
D．The effect of Franklin’s experiment.
While-reading
√
Franklin’s Experiment:
How Much Is It True
Fast reading- for basic information
Read the title and predict what the author talks about.
Read for general ideas
Read the passage and find out :
What’s the genre/type of the passage
It is an argumentative essay.
structure
Read for structure
1
6
2-5
Introduction (Para._____)
Main body
(Para._____)
Conclusion
(Para._____)
The author’s view
What’s the author’s view on the story of the experiment
The story may be fiction instead of fact.
Question: how does the author support his view
Read for general ideas
1
6
2-5
Introduction (Para._____)
Main body
(Para._____)
Conclusion
(Para._____)
Para 2
Para 3
Para 4
Para 5
The story of the experiment
The story’s influence on general public
Scientists’ question on the story
Scientists’ question on a similar story
The author’s view
Para. 2 The story of Franklin’s experiment
Read for details
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(触电).
The lightning is a form of electricity.
whether lightning is a form of electricity
Tie
to
attach
to
Fly
a storm
Touch
the finger
How much is true
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 actually touched the key.
They want to establish the facts.
Read for details
What is the author’s conclusion from the story
We should not always believe everything we read or hear—even if it is a great story.
Read for details Para.6
Post-reding
1.What attitude should we have towards everything we read or hear
We should be _________ about everything we read or hear.
critical/ doubtful/skeptical
2.What’s your opinion on the great scientists’ spirit
We should respect and even be inspired by their spirit of scientific exploration.
Homework
Review what we have learnt and preview language points.