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1. What has become a serious problem all around the world?
2. What can Kitty do to protect the environment?
3. Is air pollution harmful to our health?
Pollution.
She can plant more trees.
Yes, it is.
Listen and answer：
Listen again and fill the blanks.
___________has become a serious problem
More trees
They make our towns look_______
They can _________dust
They help keep the air__________
They help keep _______in place
They provide ________for animals.
Pollution
nicer
reduce
clean
soil
home
Read after the tape
We should ___________________
when we brush our teeth.
turn off the tap
choose public transport,
It is wise to ______________________.
ride a bicycle
or walk to school
use both sides of the paper