快来帮帮我！！英语高手快进！超级悬赏

Beautiful Beijing
Beijing, the capital of China and the host city of the 29th Olympic Game,is much more beautiful than before.Now more trees and grass can be seen in every street and road.The surroundings are more beautiful and the air is fresher,and more buildings,such as the Bird Nest,the Water Cuber have been set up.Thanks to its great changes,Beijing has attracted more visitors both from at home and abroad.Hower,we can do something more for the city.We should improve our environment,do more exercises to keep ourselves fit.

1、更多树和草
2、更多游客
3、整治我们的环境(即有环境意识，从我做起）
4、保持我们自己的健康(即全民运动）