九上U2T3SC.ppt

Unit 2 Topic 3
Would you like to be a greener person?
Section C
Use but, and, while to answer the following
questions.
What activities should we do to protect the
environment?
What activities shouldn’t we do to protect the
environment?
Look up these words in a dictionary.
power
acid rain
nuclear
renewable
electric
efficient
电力；
动力；力
酸雨
原子核的，
原子能的；
核动力的
可更新的
电动的，
用电的
效率高的；
有能力的
Wind is used for producing electricity
in many places.
Look at the following pictures and guess the meaning
of the underlined word.
More and more people are interested in
electric cars.
Look at the following pictures and guess the meaning
of the underlined word.
The maglev train in Shanghai uses magnets.
The magnets push the train forward.
Look at the following pictures and guess the meaning
of the underlined words.
…people produce power from coal, but it is very
dirty and causes acid rain.
Look at the following pictures and guess the meaning
of the underlined words.
Nuclear power is clean but it is very dangerous.
Look at the following pictures and guess the meaning
of the underlined word.
Listen read and answer. 录音p45-1a
Why isn’t coal a good material?
What is the disadvantage of using nuclear power?
What do you think of electric cars?
What do you think of the maglev train?
It is very dirty and causes acid rain.
Nuclear power can be very dangerous.
It is quiet and quick.
They are very efficient and cost very little to run.
Choose the right picture for each paragraph of 1a.
a
b
c
China is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in people’s everyday life.
Electric vehicles were developed in the 1990s. Now there are electric vehicles in many countries. They are very efficient and cost very little to run. Although electric vehicles produce no pollution, there will be a