介绍:
安安是个虫子迷，今天的书讲讲毛毛虫和蝴蝶吧。
From Caterpillar to Butterfly
Today a caterpillar came to school in a jar. It is eating green leaves. It is climbing and wiggling. This tiny caterpillar is going to change. It will change into a beautiful butterfly.
Caterpillars usually turn into butterflies outdoors. They live in gardens and meadows and yards. But we will watch our caterpillar chagrin in to a butterfly right here in our classroom. This change is called metamorphosis.
Our caterpillar started out as a tiny egg. The mother butterfly laid egg on a leaf.
Then the caterpillar hatched out of the egg, it was hungry. It ate its way out of its own eggshell! Then it started to eat green plants right away.
A caterpillar's job is to eat and eat and eat, so it will grow and grow and grow.
Each day when we come into school, we look at our caterpillar. Each day it is bigger.
Our skin grows with us. But a cater pillar's skin does not grow. When the caterpillar gets too big for its skin, the skin splits down the back.
The caterpillar crawls right out of its own skin. I has new skin underneath. This is called molting. Our caterpillar will molt four or five times.
After many days our caterpillar is finished growing. It is much bigger than when it first came to school. It is as big as my little finger now.
To be continued. . .
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