(
课件网) Unit 3 The World of Science FRANKLIN`S EXPERIMENT: How Much Is True Developing ideas Learning aims 1.To understand the main idea of the passage and get some detailed information. 2.To get the features of argumentation and find out the structure of the passage. 3.To develop our critical thinking and have clear judgements. Know 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 diplomat, creative scientist and inventor. 美国的开国元勋之一 政治家 作家 印刷商 出版商 发明家 外交官 科学家 Leading-in It proved if lightening was really produced by electricity or something else. Read the passage and find out what Franklin’s experiment aimed to prove. General reading Raise a question Is Benjamin Franklin`s famous experiment with lightning a fiction or a fact What `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 conducted through the string to the key. Franklin then touched the key with his finger and got an electric shock. Specific reading Contributions: 1 For many year, more than one generation of schoolchildren has been amazed by Franklin`s bravery and his scientific approach to looking for the truth. 2 Franklin ,along with many other 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. Neither the story nor the details of the experiment are entirely true. Analyse the question Although it has been proved that Franklin`s experiment took place, the detail about the string and the key is true, scientists all agree that if Franklin had actually touched the key, he would certainly have died from the electric shock. Because they want to establish the fact. 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 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, because they don’t follow the common sense. However, the scientists’ spirit of scientific exploration is what mostly matters. 1 Franklin did the experiment with lighting in order to _____. A have fun B prove that lighting is a form of electricity C fly a kite D to prove that he was brave 2 What`s people`s att ... ...
