课件15张PPT。Unit 3Care for the Earth We all live on the earth.It is our home.there are a lot of ,trees,flowers,rivers,and mountains on the earth.there are also many animals here with us.Why？Why is crying the earth? Our earth is beautiful .But something We do bad things to it. We cut down too many trees. We waste too much water and make the air dirty. _____ flowers _____ trees make the air _____ _____ waterLook and write:pickwastedirtycut downpick flowers waste watermake the air dirtycut down trees We have only one earth .We should care for it.We should do something to make the water and the air clean again.We should plant more trees and help the animals.should / shouldn'tWe _____ pick flowers.shouldn'tshould / shouldn'tWe _____ ___ ____ trees.shouldn'tcutdownshould / shouldn'tWe _____ make the air____.shouldn't dirtyshould / shouldn'tWe _____ _____ water.shouldn'twasteWe shouldn’t ___ flowers. we should____ ____ flowers. Look and write: pikecareforWe shouldn't_____. we should_____ ____ the earth. make the air dirtycareforLook and write:
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