1、Unit 1Reading 1The evolution of video and sound devices 高中英语高中英语 必修（第三册）必修（第三册）1Unit 1 Nature in the balanceWelcome to the unit23.Why do you consider it as your favourite English song?1.Do you like singing English songs?2.What is your favourite English song?Lead-in4.What can an English song bring?3L
2、ead-inAn English song can bring both relaxation and information.4Lead-inWhat is the English song about?English songlovedreamsuccesswartravellingenvironmentfriendshiplife5The human race has done much harm.We have polluted our soils and ,And cut down too many trees.Now is the time to sound the .We wan
3、t to live in a world thats clean;We want to live in a world of .The human race has done much harm;Now is the time to sound the alarm.seasalarmgreenListening time6Lets be thankful for the skies above;Lets plant new trees and stop ;Lets work together to find the solution;The Earths our home to and lov
4、e.We want to live in a world thats clean;We want to live in a world of green.Lets be thankful for the skies above;The Earths our home to protect and love.pollutionprotectListening time7 1.What are the rhymes of this song?2.How do you understand“harm”and“alarm”in the song?Comprehension81.harm/alarm;s
5、eas/trees;clean/green;above/love;pollution/sollution2.“Harm”means something bad we have done to the Earth,including polluting soils and seas,cutting down too many tress,etc.“Alarm”means the signal that warns us of the dangers of environmental damage,which urges us to find a solution to this problem.
6、Comprehension91.What is the message of the song?Humans have done much harm to the Earth,and we have to take action to change this situation.Comprehension102.What can you do to protect the environment?We can use less paper and fewer plastic bottles and bags.Cutting down on electricity usage can also
7、help reduce the air pollution that power stations create.Comprehension11When people are faced with so many pollutions around,it is easy for people to feel uncomfortable and depressed.How can we reduce pollution?Discussion12Do you know who Friedrich Engels is?Could you translate his quotation on Page
8、 1 into Chinese?Let us not,however,flatter ourselves overmuch on account of our human victories over nature.For each such victory nature takes its revenge on us.Friedrich Engels 但是我们不要过分陶醉于我们人类对自然界的胜利。对于每一次这样的胜利，自然界都对我们进行报复。弗里德里希恩格斯Discussion13What do you think is the significance of human beings li
9、ving in harmony with nature?Human beings should live in harmony with nature for sustainable development,which is a win-win policy for our future generation.Discussion14Homework1.Design a brochure to introduce different ways of protecting the Earth.2.Finish the workbook.15Homework1.Read this article aloud.2.Finish the workbook.谢谢 谢谢16
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