There are three pupils in the picture. What are they doing? They are catching insects in the park. The girl is catching a butterfly with a sweep net. The boy in blue is catching a beetle on the tree. The other boy with a cap is catching a ladybird on a stone. Now the ladybird is on the ground. It is moving towards a tree. Can it climb the tree? I don't know. Let's wait and see. Oh, it can climb. Look! It is climbing up the tree. It can jump, too. An insect usually has six legs and two pairs of wings. Catching insects is very interesting. Some insects are good. They are our friends. Some are bad insects. You can catch and kill the bad ones.
1．An insect usually has 6
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