C    Story time故事时间　(教材第41页)

Cavemen often ate raw meat.They didn’t cook their food.

Now there are many things to help you cook.

In 2050,there will be house robots.They will cook,clean and wash the dishes.

Zip:Oh,cavemen didn’t cook their meat?

Zoom:It’s OK.They didn’t do the dishes either!

There were many trees,and there were many clean rivers.

Now,there are more and more buildings.

We should help the earth now,so birds will have homes and the forests will be healthy and green again.

Zip:Look!How beautiful the world was!Oh!What will the birds do?

Zoom:Don’t worry.People will help them.

Before humans lived on the earth,whales already lived in the sea.

Now,there are not many whales.

If we change now,whales and humans will have a bright future.

Zip:Heal the world!

Zoom:Make it a better place!