Busy Beavers

Busy Beavers Busy Beavers Beavers live by streams and lakes in woody places. They eat tree bark and pond lilies and other plants. A beaver has a wide, flat tail. On land, the beaver needs to stand on its hind legs. Its tail makes it able to stand while it eats branches or cuts trees with its sharp teeth. Beavers spend a lot of time in the water. They use their tails to steer and to help them swim quickly. To warn of danger, a beaver slaps its tail on the water and makes a loud sound. Bea

登录后可以听外教原声朗读。

Busy Beavers



Busy Beavers

Beavers live by streams and lakes in woody places.They eat tree bark and pond lilies and other plants.

A beaver has a wide, flat tail.On land, the beaver needs to stand on its hind legs.Its tail makes it able to stand while it eats branches or cuts trees with its sharp teeth.

Beavers spend a lot of time in the water.They use their tails to steer and to help them swim quickly.To warn of danger, a beaver slaps its tail on the water and makes a loud sound.

Beavers and Humans

Woodlands with streams are a beaver's habitat.Humans use woodlands, too.Some of these humans dislike beavers.They think beavers are pests that build dams in streams.Sometimes the dams cause floods and hurt the land.

Other humans think beavers are good for the land.When beavers build a dam,they make a wetland home where other plants and animals can live.This is good for the planet.

Humans can make problems for beavers.When people's trash gets in streams,beavers may put it in the dams they build.

This trash can be a danger to beavers.They can get hurt by rusty nails.They can choke on plastic bags.This is why humans must keep streams and lakes clean.

......
未登录用户只显示文件一半,登录后可以查看全文,并且可以听外教原声朗读。