8上 U7 A Will people have robots

A:What are you reading, Jill?

B:It is book about the future.

A:Sounds cool.  So what will the future be like？

B:Well,cities will be more crowded and polluted . There will be fewer trees and the environment will be in great danger.

A:That sounds bad! Will we have to move to other planets?

B:Maybe, But I want to live on the earth.

A:Me too. Then what can we do?

B:We can use less water and plant more trees. Everyone should play a prat in saving the earth.