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There are ......
(many, a lot of ,some......)
We all live on the earth, It is our . There are a lot of , , and
on the earth. There are also many here with us.
trees
flowers
rivers
mountains
animals
home
What's the matter with our earth?
Land become dirty.Smoke （烟）from cars and factories（工厂） makes the air dirty. Look at the picture ,it is hazy （有雾的）in Xi'an. The sky is grey（灰色的）.
雾霾
HAZY
01
We cut down too many trees.
02
We waste too much water.
03
We make the air dirty.
Sometimes we do bad things to our earth.
LOREM IPSUM DOLOR
We have only one earth.We should care for it.
We should......
We shouldn't......
Listen and tick or cross.
( ) 1.There are mountains,trees and flowers on the earth.
( ) 2. We live on the earth with many animals.
( ) 3.We should cut down more trees.