Unit 9 WheelsPeriod Three Lesson 3 Clean MachinesⅠ.重点单词1．solar adj. 太阳的，太阳光的2．sunlight n. 阳光，日光3．kindergarten n. 幼儿园4．chapter n. 章节5．essay n. 散文6．petrol n. (英)汽油→gas n. (美)汽油7．racer n. 赛车手→race n. 比赛8．northwest n. 西北，西北方→southeast n. 东南，东南方9．impression n. 印象，感觉→impress v. 留有印象→impressive adj. 印象深刻的，留有深刻印象的→impressively adv. 印象深刻地，留有深刻印象地10．reliable adj. 可靠的→rely v. 依赖11．operator n. 操作人员，接线员→operate v. 操作12．appreciate vt. 欣赏；感谢→appreciation n. 欣赏；感谢Ⅱ.核心短语1．so_far 迄今为止2．take_place 发生3．take_part_in 参加4．complain about 抱怨5．have a good impression of sth. 对……有好的印象6．all the time 一直Ⅲ.经典句式1．定语从句Solar cars are cars that use the sun's energy for power.太阳能汽车就是用太阳能作为动力的汽车。2．过去分词短语作后置定语People have been worried about pollution caused by fuels like petrol and gas for a long time now.人们一直为像汽油、煤气等燃料造成的污染而担忧。课文预读Solar① Car RacingSolar racers② have been coming to Australia for years for the World Solar Car Challenge. We interviewed Marie Logan from Brisbane.Q：Well, the first question I have for you is simple. What is a solar car?A：Solar cars are cars that use the sun's energy for power. That means they don't use petrol③，gas④ or any other fuel, just the sunlight⑤.Q：And why are people interested in⑥ solar cars?A：People have been worried about⑦ pollution caused by fuels like petrol and gas for a long time now. Solar cars are clean and safe, so there is a lot of interest in them.Q：You've been designing solar racing cars for a long time. When did you start?A：Well, I've been interested in cars since kindergarten⑧. When I was at university ⑨...
