CAI Demonstration Class

Saving The Earth

October 16,2000

                                         By Zhaoxiang Zhou

I.  Teaching focus

1.Realize the damage caused to the world and figure out the reasons.

2.Find ways to stop the earth from being polluted by discussing in groups.

II.Teaching approaches

Elicitation, Mutual Interaction

III.Teaching aid

Interactive multimedia teaching

IV.Teaching process

Step  1   Revision

1.  Check note-making

Earth: not enough rain, too many cattle, cutting down trees, strong winds

Air:  smoke from factories, power stations, cars, chemical rain, accidents at power stations and factories

Water: waste from factories and cities

Step  2   Presentation

1． Present a series of images depicting t

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