高中英语必修三Unit3Franklin`sexperimentHowmuchistrue课件.pptx--（课件中不含音视频）

1、Developing ideasKnow about Benjamin Franklin.Benjamin Franklin(1706-1790)was one of the Founding Fathers of the United States and helped draft the Declaration of Independence.Apart from being a successful statesman,he was also well known as a leading American author,printer and publisher,successful

2、diplomat,creative scientist and inventor.美国的开国元勋之一美国的开国元勋之一政治家政治家作家作家印刷商印刷商出版商出版商发明家发明家外交官外交官科学家科学家 Number the statements to show how peoples attitudes towards Franklins experiment have changed.Franklins spirit of scientific exploration is still considered an inspiration.People are amazed at and ins

3、pired by Franklins experiment.Scientists question what really h a p p e n e d i n F r a n k l i n s experiment.An essay title often contains an explicit or implicit question which your essay should focus o n a n s w e r i n g.F o r example,thet i t l e “F r a n k l i n s Experiment Read the passage

4、and find out w h a t F r a n k l i n s experiment aimed to prove.ent:How Much Is True?”makes it clear what question is being answered within the essay.Learning to learn It proved if lightening was really produced by electricity or something else.Read the passage and find out what Franklins experimen

5、t aimed to prove.Raise a questionWhat s the aim of the experiment?To prove that lightning was a form of electricity.What about the experiment?Franklin raised a kite with a piece of string tied to it.A metal key was attached to the string.A flash of lightning hit the kite,and electricity was conducte

6、d through the string to the key.Franklin then touched the key with his finger and got an electric shock.Contributions:1 For many year,more than one generation of schoolchildren has been amazed by Franklins bravery and his scientific approach to looking for the truth.2 Franklin,along with many other

7、scientists,has inspired us and taught us that scientific experiments are important in order to establish the truth and to contribute towards later scientific discoveries and inventions.Analyse the question Although it has been proved that Franklins experiment took place,the detail about the string a

8、nd the key is true,scientists all agree that if Franklin had actually touched the key,he would certainly have died from the electric shock.Why do scientists often question accepted ideas?More than one account suggests that while Newton was certainly inspired by a falling apple,there is no proof that

9、 it hit him on the head.The solution Admittedly,fiction is often more interesting than the truth,in science,facts should be proved by experiments and research,and we should not always believe everything we read or hear.From the passage we can learn.Some parts of the stories are true,and some are not

10、,because they dont follow the common sense.However,the scientists spirit of scientific exploration is what mostly matters.Think&Share1.Do you think it matters that Franklins experiment might not be true?Why?2.What is your opinion about the statement“.we should not always believe everything we read o

11、r hear even if it is a great story”?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,honest,objective,persistent,curious,imaginative,devoted and so on.4.In what ways do scientists contribute to socie

12、ty?First,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.1 Franklin did the experiment with lighting in o

13、rder to _.A have funB prove that lighting is a form of electricityC fly a kiteD to prove that he was brave2 Whats peoples attitude towards Franklins experiment?A Doubtful.B Believable.C Indifferent.D Negative.3 Why do scientists often question accepted ideas?A Because they think they are cleverer th

14、an others.B Because accepted ideas are often wrong.C Because they only believe in themselves.D Because they want to establish the facts.Reading comprehension4 According to the text,which statement is true?A Actually Franklin didnt touch the key at all.B Franklin died from the experiment.C All the sc

15、ientists believed the story of the experiment.D Only one scientist had some doubt about the story.5 Whats the purpose of the passage?A Tell us a funny story.B Tell us a story of a great scientist.C Tell us that we shouldnt always believe everything we read or hear.D Tell us lighting is really produc

16、ed by electricity.6 Whats the authors attitude towards the story of Franklins experiment?A.Doubtful.B.Curious.C.Objective.(客观的）D.Not mentioned.There is a well-known story about Benjamin Franklin 1_ has introduced generations of children to science.2_ new research suggests that the story may be ficti

17、on instead of fact.3_(prove)if lighting was produced by electricity,Franklin raised a kite with a piece of string 4_(tie)to it.A metal key 5_(attach)to it.When a flash of lighting hit the kite,Franklin then touched the key and got 6_ electric shock.This proved that lighting was a form of electricity

18、.For many years,7_(generation)of schoolchildren have been amazed by Franklins bravery and scientific approach 8_ looking for the truth.However,more than one scientist has questioned 9_ really happened.They all agree that if Franklin had actually touched the key,he would 10_(certain)have died from th

19、e electric shock.So we shouldnt always believe everything we read or hear-even if it is a great story.which However To prove tied was attached an generations to what certainly 直击高考直击高考 Write an essay about your understanding of the saying“Seeing is believing”.（80 words)Useful expressions:Firstly,Sec

20、ondly,Thirdly,In my opinion/From my perspective The reason why is that In a word,/In short,/To sum up,Writing an experiment report1.What do you think the results of thisexperiment will be?2.What can you learn from thisexperiment?The egg will squeeze into the bottle.The experiment shows us the effect

21、s of air pressure.Air pressure indeed exists,and it is very powerful.Read the instructions for the experiment and answer the questions.Complete the boxes with the information in Activity 5.Do further research if necessary.Write a report of the experiment.The experiment is designed to prove whether a

22、ir pressure really exists.At the beginning of the experiment,I prepared the materials,including a boiled eggs,a glass bottle whose neck is a bit smaller than the egg,and some hot water.With all the things prepared,the experiment began.First,I removed the shell of the egg.Then I carefully poured the

23、some hot water into the bottle,and shook the bottle gently.After a few minutes,I poured out the hot water.Just at the same time,I quickly placed the egg on top of the bottle.To my amazement,the egg squeezed into the bottle at once.After the experiment,I can draw the conclusion that air pressure indeed exists,and it is very powerful.It is the force of the air that pushed the egg into the bottle.Work in groups.Look at the pictures and discuss how these objects have changed over the years.Presenting ideas