Unit 16 Franklin's famous kite experiment
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Franklin’s Famous Kite Experiment
(the second period)
Teaching Aims:
1. Learn and master some words and phrases
2. Learn how the scientist Franklin found lightning and electricity are the same.
3. Improve the students’ reading ability through reading activities.
4. Let the students know how hard to be a scientist besides inspiration.
Teaching Important Points:
1. Learn the new words and phrases.
2. Train the students to improve their reading comprehension.
Teaching Difficult Points:
1. Understand the following sentences correctly:
(1) Having realized that I could use a kite to attract lightning, I decided to do an experiment.
(2) Fly the kite when a thunderstorm appears to be coming on.
2. How to help the students understand the passage better.
Teaching Methods:
1. Question-and-answer method to make students interested in what they will learn.
2. Fast reading to get the general idea of the text.
3. Careful reading to answer some detailed questions.
4. Individual, pair or group work to make every student work in class.
Teaching Aids: 1. a tape recorder 2. a projector and a computer for multimedia use
Teaching Procedures:
Step ⅠGreetings
Greet the whole class as usual.
Step Ⅱ Revision
T: In the last period, we talked about advantages and disadvantages of the work of the scientists, such as nuclear energy and clone. Now I will ask you to act out the dialogue in front of the class. Any volunteers?
Step Ⅲ Lead-in
T: What’s the weather like today?
S1: It’s sunny and windy.
T: Quite right. It’s the very time to fly kite. Do you think so? ( T shows some pictures on the screen and ask the following question: What are the people doing? )
S2: They are flying kites.
T: Yes, we fly kites just for fun, but in the eighteenth century, Benjamin Franklin did a lot of experiments with kite to attract lightning. Have you ever considered doing that? (yes) then you will be Franklin second. (no), it doesn’t matter, after all , not everyone can become a genius. Edison once said Genius is one percent inspiration and ninety-nine percent perspiration. Well, how much do you know about the famous scientist- Franklin (some information about him on the screen):
(1706-1790) American statesman, inventor, and scientist
Step Ⅳ Fast reading
T: Read the passage quickly and then divide the whole passage into three parts and match the main idea of each part.
Part 1 How to conduct the experiment
(Para. 1)
Part 2 Franklin and his experiment
(Para. 2&3)
Part 3 The description of the experiment
(Para.4-6)
Step Ⅴ Careful reading
Listen the tape and read after it carefully and consider the following questions:
1. Why did Franklin do this experiment with the kite?
2. Franklin made the kite of silk because C .
A. wet silk does not conduct electricity.
B. silk kite flies high
C. silk kite will last longer in weather with rain and strong winds.
D. Silk kite is cheaper
3. Was the experiment done in June 1752 successfully?
S: Yes, it was.
T: Because the experiment was done successfully, Franklin kept a record of it. No w let’s finish the record of the experiment together.
name Kite experiment
time In June 1752
Attendee(参与者) Franklin & his son
purpose Lightning & electricity are the same
things needed A kite, a key, some really bad weather & a condenser
T: Well, do you know how Franklin conducted the experiment? First, he needed a kite which is quite different from the common kites. Then let’s see how he made the special kite. Read para.4-5, then draw a sketch of the kite which was used in the experiment according to the instruction.
Step Ⅵ Exercises
1. Which is not stated but can be inferred from the text?
A. Franklin did the experiment with the kite.
B. Franklin’s experiment with electricity was very dangerous.
C. Franklin failed the experiment again.
D. The experiment was conducted in bad weather.
2. Decide whether the following statements are true or false:
1) In 1752 scientists already knew what electricity is. T
2) Franklin was helped by his friend to do this experiment. F
3) Franklin made the kite of silk because wet silk does not conduct electricity. F
4) A condenser was used in the experiment to store electricity. T
5) The key tied to the string was put into the door to stop the kite from flying away. F
3. Filling the blanks:
Benjamin Franklin was a world famous scientist. One day in June 1752, he wanted to show that lightning and ________ are the same, so he decided to do an ________. In his experiment, he used a kite to ______ lightning. On a rainy day, he took his son with him to a field. At first, nothing happened. Benjamin almost gave up when he saw the hairs on the ______ stand up. He knew the string was getting ______! He then felt some light but very clear ______ ______ until in the end the whole string was wet. In this way he was able to collect and store a great ______ of electricity into the ________. His experiment ______ that lightning and electricity are the same.
Step Ⅶ Discussion
What qualities do you think Franklin had?
Step Ⅷ Homework for today
1. Read the passage fluently.
2. Finish the exercises in your workbook.
3. Preview Language studay.

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