7класс. , проверьте текст на ошибки: sharks have lived on our planet for millions of years. many of them are named by people the way they look or where they live. sharks' lenght range from a few centimeters to many meters. sharks have the senses like people have. they don't have outer ears, but their inner ears are good. sharks is very important for ocean and for people. many species are in danger of extinction by reason of people kill them for medicine and for food. shark fin soup is a traditional dish in some countries. so we are more dangerous for them than they are for us.

Books... I think that we can't live without them. I believe that books stay with us for all our life. When I was a child my parents read them to me. I was happy to listen to the stories and tales. I learned a lot of interesting things from books. I remember thtat I liked thick books. Later I've learnt to read myself. I like to read books about animals, nature and children. I like to get presents on my birthday. I am happy if it is a book. It doesn't matter what kind of book it is. I like to read almost all books. If I have spare time, I spend it with my favourite book. When I was fifteen I was fond of reading too. But I preferred to read books about travels. I travelled with the heroes of the stories. I saw many interesting places and learned a lot of important facts about other countries and people. Now I like to read books about science. You can learn a lot from books. I am sure that books play a very important role in my life. Books must be our friends during all our life.

. The US situated in central North America.

2. It is washed by the Pacific Ocean, Atlantic Ocean, the Carribian Sea and the Gulf of Mexico.

3. The US has almost every kind of weather.

4.  The US  has many kinds of land — rocky coasts, dry empty deserts, big rivers, wide plains and grasslands, lakes of all sizes, high mountains, great forests, sunny beaches, lands of endless winter.

5. The population of the country is more than 250 million.

6.The Grand Canyon, Yosemite Valley, and Yellowstone are among the most famous places to enjoy the beauty and power of wild America.

7. The mighty rivers of America are Mississippi, Colorado and Missouri.

8.A big mountain chains are the Appalachians and the Rocky Mountains

9. The Grand Canyon attracts people because it is very big and  beautiful with  different kinds of plants and animals on opposite sides of the canyon. It looks different at different times of day and in the winter it is covered with snow.

10. People say that the US is a young country because It’s only been independent for around three hundred years.

11.  Americans have tried to save many of the most beautiful wild areas of the United
States. There are a lot of parks, forests and wildlands where they  can enjoy the
beauty and power of wild nature.

12. I think that the U.S. isa "melting pot" because many different social groups from different religious, ethnic, racial and cultural backgrounds have chosen to live here.