高二英语18单元课件.ppt

Unit 18 Inventions,Listening,( at patent office ) J:Frank Jones,an inventor ; P:the patent officer, J:Yes.Oh,its great! Its an invention that will change the world.Listen:cars and buses are good _of transportation,right?But they are _ and _ and they _the air.Imagine a new means of transportation that lets people travel without a sound, that doesnt need any _,and that doesnt pollute the air. P: Hmm,sounds interesting.Go on please. J: Well,My invention is a vehicle(交通工具） with two _ in stead of four.It doesnt have an _;instead you simply push these things here with your _. ,means,expensive,noisy,pollute,fuel,wheels,engine,feet,More convenient,creativity,useful,Post-listening :,What should a new thing be like in order to be given a patent?,Practicality (实用),novelty (新颖性),Inventions,Unit 18 Speaking,Who are they?,Cai Lun,Edison,Watt,Bi Sheng,Wright brothers,What do they have in common?,They are inventors,What do inventors have in common?,What is an invention?,An invention is something produced for the first time through the use of imagination or thinking and experiments.,The steps of inventing,Step I Learning About Inventors Step II Finding an Idea Step III Researching and Planning Step IV Developing and Testing Step V The Invention Conference,How much do you know about inventions and inventors?,Each number represents its difficulty of guessing.,This invention is made of metal. 50 This invention looks like a bird. 40 It makes it possible for people to fly to different places in the world. 30 It is powered by an engine and is flown by a pilot. 20,Airplane,Guess the invention by listening to the following information. Part 1 60 Part 2 50 Part 3 40 Part 4 30,This is an invention which can help people in the streets, especially in the big cities.,Sometimes, it looks like a tree standing beside the street.,It directs cars and trucks at crossing.,It has colored lights; red means stop; green means go.,Traffic light,This invention can help people It looks like Its made of It will make it possible for people to This is a new way of. Maybe it works like People will use it to,Useful expressions,More inventions,Discuss in groups of four about how to describe the invention with four sentences for others to guess, using the following expressions:,This invention can help people It looks like/ Its made of It will make it possible for people to This is a new way of. Maybe it works like People will use it to,Useful expressions,Dialogue,What changes might it bring to our life? Is it practical nowadays?,Necessity is the mother of invention .,In your daily life or during the study, what inconvenience have you met? What would you like to improve?,Pair discussion,Researching and Planning,Task,Work in groups of four, first discuss the details of the invention which your group will do. Then fill in a form about your invention in order to show to a patent officer and at a conference.,Name of Invention Group Members How did you get the idea? Can you describe your new invention? (appearance/materials/cost/operating etc.) What is its contribution? Other information (if necessary) The picture of invention (if necessary),Invention Conference,2005,FOR MIDDLE SCHOOL STUDENTS,Instructions,Some groups will show their inventions. The others will be the patent officers to ask questions or make comment. All will decide which is the best invention at the end.,Invention Conference,FOR MIDDLE SCHOOL STUDENTS,Summary,Imagination and creativity are the motive forces of a nations development.,Learning Finding Researching Developing Convention,creativity Imagination curiosity knowledge Support perspiration,Inventions,Inventors,Writing on Blackboard,Invention,H