仁爱九年级Unit 4 Topic 1 Section C.ppt

Unit 4 Amazing ScienceTopic 1 When was it invented ? Section C Work in groups and discuss the questions before reading. What is an invention? invention n.发明，创造 invent v. 发明，创造 inventor n. 发明者，发明家 An invention may be a new product or a new way of doing things. Work in groups and discuss the questions before reading. 2.List some inventions that you know and their inventors. computer lock television light bulb chopsticks crayon … 3.Do you think you can be an inventor? Why? Yes, inventing is interesting and exciting and everyone can be an inventor. invention crayon thought silly brainstorm evaluate redesign detailed 1b Read 1a and put the sentences in the correct places . A. Draw your invention. B. Name your invention. C. Test your invention. D. Use your imagination. E. Plan and design your invention. 1b Read 1a and put the sentences in the correct places . 1c Read 1a again and fill in the blanks. When you want to have an invention , first you must use your ________. Then you should plan and design it. Careful planning is very _________ in the invention. Third, you should make a _______ drawing of your invention and make a model of it. If you want to make your invention more successful, you must ______ it again and again. After that, you _______ your invention. Last, remember that you should _______ your invention with others. 1a Read and understand. Can you list it? 1. An invention – come about –solve a problem– the result of –crayons—none of –be made in –interesting, exciting – inventor –a few simple steps 2.Use your imagination– thought– silly – laugh at –be discouraged 3.Plan and design your invention– be important to –brainstorm– evaluate 4.Draw your invention—make a detailed drawing 5. Make a model 6.Test your invention --do more research 7. Name your invention 8. Share…with 1.What are the top 3 most important inventions? Why ? 2 Discuss with your partner which of t