Clean Mechines 的PPT.

1、Lesson 3 Clean MachinesLesson 3 Clean Machines Solar Car RacingSolar Car Racing Where do they get their power from? (What kind of energy do they use? ) A. petrol B. gasoline C.solar energy D. electricity Different kinds of fuelDifferent kinds of fuel coalcoal petrol (BE)petrol (BE) gas (AE)gas (AE)

2、dieseldiesel ( (柴油柴油) ) gasgas ( (天然气天然气) ) More and more families have their own cars in order to make life more convenient, but have you ever thought about what would happen to the city? The more, The more, the worse?the worse? Discussion: why do people invent solar cars? 1.use the power of sunlig

3、ht 2.do not use petrol, gas or any other fuel, no pollution 3.clean and safe the sunlightthe sunlight (solar energy)(solar energy) the solar carthe solar car A new energyA new energy Look at the following picture. Whats it? Have you ever heard of a solar car? Read the interview. Maybe you will find

4、something special. Lets enjoy some photos of solar cars first World Solar Challenge (世界太阳能车大赛世界太阳能车大赛) 世界太阳能车大赛WSC是丹麦出生 的澳洲人Hans Tholstrup所提倡的，主要的宗旨 是因应日益减少的石油能源以及日益严重的环 境污染问题，希望通过太阳能车的设计、制作 与比赛引起世人对上述两个问题的觉醒以及提 供解决之道。 Name: Marie Logan From: Interested in cars (when): Began designing car (when): De

5、signed solar cars (how many cars): How many races: How many wins: What have you recently been doing (two): Task 1: Read and complete Brisbane since kindergarten five or six different cars so far. sixtwo at university I have been building a new car with a team. We havent finished yet. I have been wri

6、ting the first few chapters of a book to persuade people the advantages of solar cars. until now True or False? 1. Marie Logan began designing cars when she was a student. 2. She has won most of her races. 3. The team has nearly finished building a solar car. 4. Marie has written a book about solar

7、cars. 5. Solar cars can work even in cloudy weather. F T T F F Read the text with your partner and find out all the questions about solar cars. What is a solar car? Why are people interested in solar cars? A lot of people think that solar cars are too slow or not very reliable. How can you persuade

8、them of the advantages of solar cars? can be trusted What is a solar car? Solar cars are cars that use _. They do not use _, _, _. Why are people interested in solar cars? People have been _ about pollution caused by _ for a long time now. Solar cars are _, so there is a lot of interest in them. pet

9、rolor any other fuelgas the suns energy for power fuels like petrol and gas worried clean and safe How can you persuade them of the advantages of solar cars? Solar cars are getting better _. They have reached speeds of _. In tests, one car we built has _, even in cloudy weather. all the time 80 k.p.

10、h. averaged over 40 k.p.h. Useful expressions L1. have/has been + V-ing for years L11. so far L16. take place L17. cross v. across prep. now we had to persuade the boss. 他说服我们相信了这个计划的可行他说服我们相信了这个计划的可行 性，现在该我们去说服老板了。性，现在该我们去说服老板了。 persuaded of persuadeof persuade sb to do sth 劝说某人做某事劝说某人做某事 The salesman persuaded us to buy his product. 售货员劝说我们买了他的产品售货员劝说我们买了他的产品。 persuaded us to buy 4. reach 达成，达成， 达到达到 The cost of the war reached billions of dollars. No agreement was reached between the two nations. 战争消耗了数十亿美元。战争消耗了数十亿美元。 两个国家没有达成一