We live on the earth. The earth is a beautiful place. There are rivers, seas, lands and forests. There are many different plants and animals, too.
People, plants and animals need clean water and air. Sometimes people throw rubbish into rivers and seas. Smoke from cars and factories makes the air dirty. Some people eat or hurt wild (野生的) animals. The earth gets sick.
Now people work together to keep the earth clean and healthy. They pick up rubbish. They plant trees. They walk or ride bikes more often. They bring their own shopping bags and stop using plastic (塑料) bags. They protect (保护) the animals and become friends with them.
Let's protect the earth-our only home!
