新课标高二英语Unit13warmingupandspeaking课件
日期：2010-04-04 04:32
what would happen?
Without water，Unit 13
The water planet
(Warming up & Speaking)
What do they have in common?
Lead-in
Without water，
life would not exist
Water is a must to life
World Day for Water is established on 22 December，
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