Unit 3 Understanding ideas 课件 2021-2022学年高中英语外研版（2019）必修第三册

Unit3 The world of science Understanding ideas Lead in Activity 1 Can you tell the difference between the pictures? 2 Ancient times Modern times 1. window (paper vs glass) 2. Things in the kitchen(firewood vs gas, bucket vs electric kettle) 3. Lightening equipment ( candle vs bulb ) 4. Way to study (brush pen vs laptop) What has changed the way we live? invention Reading V I 1.Read the interview (P26-27) fast and find out what inventions are mentioned. Great inventions in ancient China: Western inventions : steam engine telephone radio gunpower papermaking printing compass 1.Read the passage on Pages 26-27 quickly and match each paragraph with its main idea. (　　) Paras.1-2　 A.The advances connected with technology. (　　) Paras.3-4 B.The possibility of making time machine. (　　) Paras.5-8 C.The ages of invention of all time. (　　) Paras.9-12 D.The inspiration to invent more. (　　) Paras.13-14 E.Greeting from the interviewer and