牛津深圳版,Unit 10 Air,Section A,Learning aims,1.掌握的单词：air，everywhere，alive，balloon，factory，smoke，dirty，clean，hurt，fresh，plant，keep.alive，plant trees. 2.掌握重点单词：important，need，keep,Warm-up,认识空气,Free talk,1.Do you know the air,2.What do we use air for,Presentation,What are the characteristics（特点） of the air,教学目标,We cant leave air,We breath with air,air,空气,There is water everywhere,Be careful,everywhere,到处，处处,We cant be alive without air,Air is very important for us,alive,活着的,What are these,They are bal
