Colourful and rich Chinese culture and fast economic （经济） development make China well-known to people in many（1）______（country） around the world.China is the（2）______（three） largest country in the world in area.China is great,but there are still some problems.And we should know（3）______to do for the environment and our country.
We should know it\’s（4）______（we） duty to protect the environment.It is（5）______（danger） for us to do harm to the environment.Years ago,people（6）______（throw） rubbish everywhere.But（7）______（lucky）,the government took some steps to protect the environment.People were encouraged to plant trees.Now,the weather has become much（8）______（good） than before.It\’s also important to improve the quality （素质） of the people.Everyone should be（9）______honest and kind person.If everyone keeps(10)______（help） others and improving himself,the society will be more beautiful.