选修八unit3公开课

• 40 The inventor is from America.
• 30 He is one of the father of inventions. • 20 The inventor invented the bulb.
Who is he?
Edison
• He was a world-famous inventor from Sweden.
Think of creative 3 solutions 4,5,6 Test the solutions
7, 8
Apply for a patent
教学目标
知识目标：学习unit3 warming up&reading 能力目标：通过阅读课文使学生掌握阅读理 解中细节题，作者意图题的解题方法 情感目标：培养学生对发明创造的兴趣爱好 思考成为一名发明家应该具备的 性格品质
To do sth so well that people notice and admire her
Stage two Do research
Why didn’t the author use powders to get rid of the snakes?
Because they are designed to kill snakes.
Unit 3
预习案反馈
Task I : discovery is finding out something already existing in nature A/An ___________ but not yet known. invention is something that created by human beings A/An __________ ______ often lead to inventions. ______are often based on discoveries inventions discoveries Task V. Task VI
Stage 4:Test the solutions
The first attempt: the next morning the author put a(n) 1. Early _______________ _________ frozen bowl over the snakes’ habitat and on top of the bowl. some ice-cubes ________ 2. She covered the whole thing with a large_______. bucket hours later, though the snakes were less 3. Two _________ _______ active , they still escaped quickly. This attempt is a failure
2. Why was the writer happy to help her mother? The writer was happy because it gave her a chance to distinguish herself by inventing something merciful that would catch the snakes but not harm them..
Because Snakes are cold-blooded animals
para
stage Find a problem Do research
which do not have a way of keeping warm in their bodies. They get warmth from the sun
The second attempt: 1.The author froze the bowl and the ice –cubes again but placed them over the snakes’ habitat in the evening ____________. 2.The author covered the whole thing and left overnight everything __________. 3.Early the next morning the snakes look very sleepy but when she picked them up, they _______, bite her. try to _____ a failure The third attempt: second The next morning the author repeated the ______ net procedure and carried a small ________ to released them collect the passive snakes and ________ back into the wild. a success
50
40 is one of his photos. • Here 30invented dynamite (炸药). • He
• A famous prize was named after him.
20
Who is he?
Alfred Nobel
the
Pre-reading
steps every inventor must go through
approach was clearly needed. So a new ___________
research
Stage 3 Think of a creative solution
List the three possible approaches: removing their habitat; • Firstly,__________________________. attracting them into a trap • Secondly,_______________________ using male or female perfume or food _________________________________. cooling them so that they would Thirdly,__________________________ become sleepy and could be easily caught ___________________________________. last • Finally, the author choose the_____one.
7,8
Choice:
The purpose of the text is __________. A. to show us how to trap the snakes but not to kill them B. to tell people how to apply for a patent of the writer’s new idea C. to introduce the writer’s new idea of trapping the snakes and her application for a patent D. to tell the readers how to get a new idea and make it a patent
• It uses colored lights. Red means stopping, 10 green means going.
What is it?
Traffic lights
What is it?
• •
Mobile phone
40 It ’s made of plastics and metal. It looks like a small box with a 30 screen and buttons on it. • With 20 the invention you can contact someone while you are walking.
What do you use to catch snakes?
Reading
The problem of the snakes
Skimming to get general ideas
What’s the main idea of the text?
The text is mainly about the author’s experience in helping her mother get rid of snakes the _______and applying for the patent for her invention. _________
Warming up
Guess what the invention is or who the inventor is.
• This invention looks like a bird.
• 30 It’s made of metal.
40
• It makes it possible for people to fly to 20 different places in the world. • It is powered by an engine and is flown by a 10 pilot.
1
2
and become more active at this time.
When the sun goes down at night they cool down and become less active. So extra cooling to the snake would make them even less active and easier to catch.
4,5, 6
Test the Make _____ three attempts solution and finally the_____ third several times one is successful.
Apply for a patent This means the solution is recognized ___________
Scanning
find out which paragraph or paragraphs deal with each inventing steps and fill in the blanks
Task 1
Skimming: Find out which paragraph or paragraphs deal with each inventing process in the passage and find the examples: paragraph Stages Examples in this story Find a The snake must be caught harmed problem ________but not ______ 1 Do research Look for approaches ________ of removal; research the 2 ______ habits of snakes three Think of a Decide on _______ creative possible approaches: 3 the last one solution choose___________.
Applying for a patent Finding a problem Doing research Testing the solution Thinking of a creative solution Deciding on the invention
1.___________________________ 2.___________________________ 3.___________________________ 4.___________________________ 5.___________________________ 6.___________________________
What is it?
Airplane
• This invention can help people in the street.
40
30 • It looks like a tree standing beside the street. 20 • It directs cars and trucks.
Βιβλιοθήκη Baidu
Careful reading
Stage one: find a problem
1. What was the mother upset about? The mother was upset because some snakes had made their home in their courtyard.