ase sit here”
Passage 24.Sea horse
There are all kinds of horses in the world. But one of them you can’t ride. It doesn’t live on land， but in the sea. It looks like the head of horse. So the people call it sea horse. In fact， the sea horse is a small fish. It likes to live in warm water. A sea horse stands up in the water when it swims.
Father horse carries the eggs to keep them safe in its pouch. Whenthe eggsare hatched， the baby horses swim away.
Passage 25.A Cat and a Bird
There are three trees near the house. There is a big tree， and two small trees.
In the big tree there is a bird. Can the bird sing? Yes， it can. What’s under the big tree? It’s a cat.
“I want some food，” thinks the cat. “Bird， my good friend， Come here！ It’s time to play games” says the cat.
“No today， thank you！” says the bird， “You can’t catch me！ Goodbye！” Look！ The bird is flying！
Passage 26.A Flying Fox
A flying fox is not a fox at all. It is a bat. But this bat looks like a fox. A flying fox is very big. It likes to eat fruit. Sometimes the flying fox is called fruit bat.
The flying fox flies into fruit trees. Then the bat eats all the fruit. So fruit farmers do not like the flying fox.
Passage 27.Flying Birds
Birds don’t fly high up in the sky. The air is too thin.
It is hard for birds to breathe in thin air. Thin air doesn’t hold them up.
Birds fly near the ground so that they can see where they are. The birds look for places they know. Then they do not get lost. Some birds fly so low over the ocean that the waves often hide them. Many birds fly a long distance in the spring and autumn.
Passage 28.Air
Air is all around us. It is around us as we walk and play. From the time we were born air is around us on every side. When we sit down， it is around us. When we go to bed， air is also around us. We live in air. We can live without food or water for a few days， but we cann