This is the earth. The green part is land. The blue part is sea. The white part is clouds. Our earth is very beautiful and interesting. There are rivers, streams, seas and lakes. There are hills and mountains. There are woods, jungles and forests. There are many countries and cities. There are many people live in them. Do you think the earth is very wonderful?
Many years ago, the earth is very clean. But nowadays there is much pollution on the earth. There is air pollution, land pollution and water pollution。People are cutting down the forests.
Many wild animals, birds and insects lose their homes. People are killing animals for their food and their skins. Its very cruel. People are polluting the land, the water and the air. People must stop doing this. We must save the earth.
新概念英语第三册英音版 12-Life on a Desert Island
新概念英语第三册英音版 08-A Famous Monastery
新概念英语第三册英音版 19-A Very Dear Cat
新概念英语第三册英音版 04-The Double Life of Alfred Bloggs
新概念英语第三册英音版 38-The First Calendar
新概念英语第三册英音版 34-A Happy Discovery
新概念英语第三册英音版 22-By Heart
新概念英语第三册英音版 21-Daniel Mendoza
新概念英语第三册英音版 06-Smash-and-Grab
新概念英语第三册英音版 03-An Unknown Goddess
新概念英语第三册英音版 09-Flying Cats
新概念英语第三册英音版 39-Nothing to Worry About
新概念英语第三册英音版 13-It’s Only Me
新概念英语第三册英音版 24-A Skeleton in the Cupboard
新概念英语第三册英音版 28-Five Pounds Too Dear
新概念英语第三册英音版 05-The Facts
新概念英语第三册英音版 37-The Westhaven Express
新概念英语第三册英音版 26-Wanted a Large Biscuit Tin
新概念英语第三册英音版 01-A Puma at Large
新概念英语第三册英音版 10-The Loss of the Titanic
新概念英语第三册英音版 20-Pioneer Pilots
新概念英语第三册英音版 45-The Power of the Press
新概念英语第三册英音版 31-A Lovable Eccentric
新概念英语第三册英音版 49-The Ideal Servant
新概念英语第三册英音版 40-Who’s Who
新概念英语第三册英音版 46-Do It Yourself
新概念英语第三册英音版 15-Fifty Pence Worth of Trouble
新概念英语第三册英音版 44-Speed and Comfort
新概念英语第三册英音版 29-Funny or Not
新概念英语第三册英音版 36-A Chance in a Million