Unit 9 Lesson3课件 北师大版必修3.ppt

Clean Machines Lesson 3 Step 1 Warm up What are the disadvantages of these energies ? use the sun’s energy, do not use petrol, gas or any other fuel, clean and safe, no pollution Divide the interview into three parts. Answer the following questions.1. What is a solar car?2. Who was interviewed? What is her job? 3. When did Marie begin designing solar cars?4. Why does Marie want to write a book about solar cars?5. What do most people think of solar cars?6. What speeds have solar cars reached? 1. What is a solar car? Solar cars are cars that use the sun’s energy. They don’t use petrol, gas or any other fuel, just the sunlight. 2. Who was interviewed? What is her job? Marie Logan. She is a solar racer and a car designer. 3. When did Marie begin designing solar cars? When she was at university. 4. Why does Marie want to write a book about solar cars? She wants people to have a good impression of solar cars. 5. What do most people think of solar cars? They think that solar cars are too slow or not very reliable. 6. What speeds have solar cars reached? They have reached speeds of nearly 80 k.p.h. Talk about solar cars! J: Good morning, Mr/ Miss …. D: Good morning, Mr/ Miss …. J: I have heard that you have been busy designing a special car recently. Would you like to tell us something about it ? D: Yes, I’d love to. I have been busy designing … J: Why do you design…What kind of energy… D: Mm… J: Thank you very much for telling us so much about it. Wish your success. D: Thank you. We use the Present Perfect to talk about a finished activity (achievement) and the Present Perfect Continuous to talk about an unfinished activity. Gram