Why are people of different colours? People were born in different areas. They have different skin colours. All skin colours come from melanin. Some people were born in a hot and sunny place. They develop more melanin. Melanin can protect our skin from the sun. People with more melanin are darker and those with less are lighter. Dark skin can help protect against the sun and skin cancer.
1．Light skin can help protect against the sun and skin cancer.I have a pen pal. He often sends letters to me. His name is Jason. He is tall and strong. He was born on April 23, 1996, in Kunming. Football is his favorite sport. We have the same hobby, so we always talk something about football.
Last summer vacation, I went to Kunming and visited him. I went by train. He made a nice plan before I came. We played football together. And then, he took me to his home and enjoyed the pictures about football. We ate the traditional food, too. After that, I went to the park and took pictures there. I also got some nice presents. I had a lot of fun with my pen friend.
1．“a pen pal” means ________. ( )| Name | Date of Birth | Looks | Favorite Sport |
| Jason | (1) | (2) | (3) |
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