高二英语Unit（18） Inventions教案 人教版Unit 18 Inventions.ppt

UNIT 18 INVENTIONSFAMOUS INVENTIONS:•The History of Adhesives - Glue •Around 1750, the first glue or adhesive patent was issued in Britain. The glue was made from fish. Patents were then rapidly issued for adhesives using natural rubber, animal bones, fish, starch, milk protein or casein. THE HISTORY OF CHEWING GUM•Thomas Adams first tried to change chicle into synthetic rubber products, before making a chewing gum. Thomas Adams attempted to make toys, masks, rain boots, and bicycle tires out of the chicle from Mexican sapodilla trees, but every experiment failed. One day in 1869, he popped a piece of surplus stock into his mouth and liked the taste. Chewing away, he had the idea to add flavoring to the chicle. Shortly after, he opened the world抯 first chewing gum factory. In February 1871, Adams New York Gum went on sale in drug stores for a penny apiece.  THE HISTORY OF PEPSI COLA•Caleb Bradham of New Bern, North Carolina was a pharmacist. Like many pharmacists at the turn of the century he had a soda fountain in his drugstore, where he served his customers refreshing drinks, that he created himself. His most popular beverage was something he called "Brad's drink" made of carbonated water, sugar, vanilla, rare oils, pepsin and cola nuts. WHAT CAN YOU GET FROM THE 3 INVENTIONS ABOVE?Everyone can be an inventor as long as he or she has the following qualities:•A habit of creative thinking•“Thinking outside the box”•Always tries to solve problems in a new way•Never give up when facing difficulties or suffering failureLISTEN TO THE TAPE AND ANSWER THE FOLLOWING QUESTIONS:•1. What is “creative thinking”?•2. What can creative thinkers find by looking at a problem in as many ways as possible?•Why may what we know and what we’ve learnt limit our thinking?•Are good ideas accident? Why?READ THE PASSAGE QUICKLY AND FIND THE MAIN IDEA OF EACH PARAGRAPH:•Para 1. •By thinking about the way we think and practicing good thinking strategies, we can become more creative.•Para 2.•To “ think outside the box” is to try new ways to solve a problem.•Para 3. •Good solutions and new ideas are often the result of a change in perception.•Para 4. •Every new thought or idea has to be connected to what we already know.•Para 5. •Good ideas are the result of a long process of trial and error.LANGUAGE FOCUS:Any difficulties in understanding the whole passage?Let’s explain some difficult points .LISTEN TO THE TAPE, AND THEN FINISH THE EXERCISES ON P60•True or False•Place the examples in the right paragraphHOMEWORK:•Find out some sentences with the Attributive Clause in the passage.•Preparations: Language Study on p 61.Thanks for attending!。