高中英语-Unit9-lesson3-Clean-Machines课件-北师大版必修3.ppt

Guessing Game:Do you know their favorite cars?
Lead in
Chairman Mao
Last American president
UN secretary-general Baand 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 them of the advantages of solar cars?
While-reading :
can be trusted
第九页，编辑于星期五：十二点 二分。
What is a solar car?
Solar cars are cars that use __________.
They do not use ____, ___, ___________.
While-reading :
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.
petrol
or any other fuel
gas
the sun’s energy for power
fuels like petrol and gas
worried
clean and safe
第十页，编辑于星期五：十二点 二分。
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.
While-reading :
all the time
80 .
averaged over 40 .
第十一页，编辑于星期五：十二点 二分。
Discussion
What effect can solar cars have on our life ?
If you were scientists, what else would you like to do to protect our environment?
While-reading :
第十二页，编辑于星期五：十二点 二分。
October 21st 2005 Sunny
Task 3 We found Marie’s Diary of her favorite race, but some parts are unclear. Read the text and complete the diary.
Tomorrow, this year’s World Solar Car Challenge will take place. Racers from the world have reached Australia for days. We have been talking about the great journey--- about 4500km long cross the whole of Australia from northwest to southeast! The different shaped solar cars left us a good impression. Several days later, we will know the winner!
While-reading :
take place
Racers
northwest to southeast
impression
happen
people who join the race
the