Discover Earth

Earth, the only blue planet in our solar system, our only home in this big big world. As we all know, there are no other planets as beautiful and full of lifes as our earth.

Why it is so unique? Let's discover Earth together.

First of all, Earth is the only planet that we know there is life.

Because, there is water on earth. If we look at earth above from the out space, we can see a fantastic colorful scene mainly formed of blue oceans. Life grew up from water since billions of years ago. Without water, there will be no life.

Also, it has suitable temperature. We are precisely at the perfect distance from the Sun. Sunray may burn us to ashes if we are little bit of closer and we could be frozen to ice if we are an inch nearer. It is so amazing that earth just locates right here.

And, it has atmosphere. There are so many speedy killers from out space alomst everyday. Shooting stars, space junks, fatal U-rays, each one may cause huge disaster on earth. Luckily, atmosphere can block these risks for us day and night.

Secondly, we have 7 different gorgeous worlds on earth.

There are 7 continents and 4 oceans on earth. And there are quite totally various views all around the Earth. 

Desert is gold. Forest is green. Ocean is blue. Glacier is white.

We have all kinds of wild lifes living with us. we share our home with them. 

At last, Earth has many secrets inside.

There are 3 layers of earth. The core, the mantle, and the cover. We still don't know what is in the core. 

Is there a Shangri-La? Or just red hot magma? Or maybe full of mineral  prescious? Who knows.

Anyway, I'm a big big girl, in a big big world. This big big earth, floating in a big big universe. I think there wouldn't be another planet as warm and bright as our Earth. 

Let's keep discovering it. There would be much more fun.

瑄早就指定了今天的命题，心心念念要我完成一篇英语说明文。

匆匆交稿，要努力啊。