our homeUnit 4Planting trees is good for usPart A B DTree Planting Dayon 12th MarchWhen is Tree Planting Day
It’splant treesWhat should we do
Tree Planting DayWe should plant more( 更多 ) trees
keep the air cleankeep us coolmake the place beautiful小组讨论：Planting trees can ………Report Planting trees is for us
Planting trees can…… Planting trees can…… Planting trees can…… We should……People cut down trees
Why do people cut down trees
Becausewe want more…Farmers also need more to grow rice and vegetables
Drivers also need more to drive the cars
We also need more to live( 住 ) in
But the weather is changing
our earthEarth is our home
