задание 1)
1. Massachusetts 2. Thanksgiving Day 3. The Mayflower 4. cross 5. survive 6. harvest 7.  turkey 

задание 2)
a6, b3, c1, d2, e4, f5

задание 3)
1. Americans celebrate Thanksgiving Day at home with their families. 2. The first Thanksgiving Day was celebrated by the Pilgrims in the fall. 3. They ate turkey, corn, beans and pumpkins. 4. The Native American Indians taught the Pilgrims how to survive in America. 5.  The Pilgrims came to America to seek religious freedom. 6. The Pilgrims called America "The New World" because the Western Hemisphere wasn't previously discovered by them so it was the land of new things and a new way of life. 7. The Pilgrims invited the Indians to their feast to express their gratitude for teaching them how to survive in America.